Settings

Switching the TVR on and off
Tuning to TV stations with the automatic tuning system (ATS euro plus)

Resorting TV stations

Entering data manually

The child lock

It is possible to lock all functions using the child lock. Even a cassette which is inserted afterwards remains in the TVR until it is unlocked.

Preparation

Switch on the TVR with the power switch.

Switch the TVR on.

Operation
Call up the GRUNDIG-INFOCENTER using the h button. Select the "INSTALLATION" line with the | ] buttons and confirm with the G button. "Select RESORT PROG. NR." with the | ] buttons and confirm with the G button. A table indicating the programme position and the channel/frequency is displayed. The selected programme position is marked. RESORT PROG.NR. 05 06
Press the CL button. The "MANUAL STORE" table appears.
Activating the child lock
Call up the GRUNDIG-INFOCENTER using the h button. Select the "SPEZIAL" option using the | ] buttons and confirm using the G button. Select the "CHILD LOCK" option using the | ] buttons and confirm using the G button. The "CHILD LOCK" table appears.
When the TVR is operated for the first time, continue with step 4. Call up the GRUNDIG-INFOCENTER using the h button. Select the "INSTALLATION" line with the | or ] button and confirm with the G button. Select "ATS EURO PLUS" and confirm with the G button. The "LANGUAGE" table appears.
Press the power switch located on the left of the unit. The red pilot lamp lights up. The TVR can be switched on from standby: using the numeric buttons , or the ] button on the remote control, or the P+ button on the unit, or by inserting a cassette, or by starting playback (if a cassette is loaded). Press the b button to switch the TVR to standby.
MANUAL STORE PR C/F CH 01 C 06

FT 00 OK

CHILD LOCK

LANGUAGE GB D F

When switching the TVR on the first time, the "LANGUAGE" menu is displayed. Perform the following settings described in the chapter "Tuning to TV stations with the automatic tuning system" starting with step 4. 6

ENTER NUMBER TO LOCK

SF 00 OK
Select the programme position with the | ] buttons and mark it with the G button. Select the new programme position with the | ] buttons. Store the setting with the G button. The data of the marked programme position will be transferred to the new programme position. The following TV stations are moved by one position. To sort further TV stations, repeat the procedure starting at step 4. End the setting using the h button.

Service Test Programme

Calling up, Checking the Levels of and Terminating the Service Test Programme The service test programme must not be called up from the following operating modes: station search install setting the clock and cassette length During the service test programme, the VCR remains fully operational for all tape drive functions. Calling up the Service Test Programme Press the s (STOP) button on the remote control and then the (play) button on the video recorder and hold them down for at least 5 seconds. The monitor will then show the values of the "SERVICE STATUS" level (see point 1). Calling up the "SERVICE CONTROL" Level The "SERVICE CONTROL" level can be reached via the "SERVICE STATUS" level by pressing the G button on the remote control. The values and functions of the "SERVICE CONTROL" level are then displayed on the monitor (see point 2.). Fading the Service Test Programme In or Out The Service Test Programme can be faded in or out by pressing the button on the remote control. On fading in the monitor shows the values of the "SERVICE STATUS" level (see point 1).
Beenden des Servicetestprogramms (Standby) drcken oder Gert vom Netz trennen. Taste
Terminating the Service Test Programme: Press the (Standby) button or disconnect the mains.
1. Serviceebene "SERVICE STATUS"
Nach dem Aufruf des Servicetestprogramms werden am Bildschirm die Werte der Serviceebene "SERVICE STATUS" angezeigt. Laufwerksensoren / Tape Deck Sensors Init Schalter / Init Switch Fdeltacho / Threading Tacho Bandende/-anfang / Tape End/Begin Aufnahmesperre / Record Protection Wickeltacho Links/Rechts / Reel Tacho left/right Serviceebene / Service Level "SERVICE CONTROL" Maskennummern / Mask No. Bedienrechner / Keyboard Control C (IC7801) "PTCG1-1" TVC (IC7410) "BTVD2-0P"
1. The "SERVICE STATUS" Level
On calling up the Service Test Programme the monitor shows the values of the "SERVICE STATUS" level.
SERVICE STATUS INIT SWITCH 0 LOADING PULSE 0 TAPE BEGIN / END 0 RECORD PROTECT REEL PULSE L / R TAPE DECK STATUS 214 SERVICE CONTROL UP: PTCG11 BTVD20P

Code 212216 237239

Laufwerkstellung / Tape Deck Position Auswurf / Eject Ausgefdelt-Stop / Stop threaded out Wiedergabeposition / Play position Wiedergabe rckwrts / Play reverse
Kontrolle der Laufwerksensoren und der Laufwerkstellung Zur Kontrolle der Laufwerksensoren (Init Schalter, Fdeltacho, Bandanfang, Bandende, Aufnahmesperre, Wickeltacho Links / Rechts) werden auf dem Monitor die Betriebszustnde mit einer Digitalstelle angezeigt. Mit jeder Bettigung der Sensoren ndern sich die Werte der Anzeige. Der Code fr die Laufwerkstellung (siehe Tabelle) gibt die Position des Cassettenschachts und der Fdelschlitten an. Laufwerkstellung und Funktion des Init Schalters Das Diagramm zeigt die Funktion des Init-Schalters in Abhngigkeit von der Stellung des Laufwerks. Dafr ist die Anzahl der Fdeltachoimpulse (FTA) wichtig. Diese Impulse erzeugt der Fdeltachogeber A: AC, 2V/Div, 0,5s/Div (Flgelrad), der mechaB: AC, 2V/Div, 0,5s/Div nisch mit dem FdelmoA tor verbunden ist.

Monitoring the Tape Deck Functions For monitoring the tape deck functions the tape deck is fitted with sensors which supply the following tacho signals according to the functions: WTR reel right FTA threading tacho FG capstan motor PG/FG headwheel motor When one tacho pulse is missing during the operation of the tape deck, the VCR tries to move the cassette compartment to the "EJECT" position. 2.3 Option Code With the ]| buttons on the remote control, select the line "OPTION CODE". Enter the 5-digit option code - see code number (e.g. 56268 for TVR 5500) - on the remote control. Attention: Execution of all TVR functions is only ensured if the option code is correctly entered. Press the button on the remote control.
Best-Nr. / Order No. TVR 3710 TVR 3710 FR TVR 3710 GB TVR 5100 TVR 5100 TVR 5100 TVR 5100 FR TVR 5500 TVR 5500 FR G.CC 26-75 G.CC 29-75 FB G.CC 28-75 GB G.CC 30-75 G.CC 31-75 G.CC 32-75 G.CC 33-75 FB G.CC 34-75 G.CC 36-75 FB

Option-Code 57312

2.4 Kopfradlagengeber (GAP) Hinweis: Nach dem Tausch des EEPROMs IC7813 oder der Kopfscheibe ist der Abgleich "Kopfradlagengeber (GAP)" durchzufhren (siehe Kap. 3 - Abgleich der Ablaufsteuerung). 2.5 Betriebsstundenzhler Der Betriebsstundenzhler gibt die Betriebsstunden der Kopfscheibe an. 2.6 Tunerselektion Bei Gerten mit 2 Tunern wird der Tuner 1702 fr den TV-Betrieb verwendet und der Tuner 1301 fr die Video-Aufnahme. Reparaturtip: Mit der Tunerselektion besteht die Mglichkeit, das Bild und den Ton des Tuners 1301 in den TV-Signalweg einzuspeisen und wiederzugeben. Aktivierung der Tuner Mit den Tasten ]| der Fernbedienung die Zeile "DISPLAY TUNER" anwhlen. Durch das Drcken der Taste oder auf der Fernbedienung kann zwischen den beiden Tunern hin- und hergeschaltet werden. Auf dem Bildschirm wird der aktive Tuner (TV / VCR) angezeigt.
2.4 Headwheel Position Indicator (GAP) Note: After the EEPROM IC7813 or the headwheel has been replaced the "headwheel position indicator (GAP)" must be realigned (see chapter 3 - Adjustment of the System Control). 2.5 Operating Hours Meter The operating hours meter indicates the number of hours the headwheel has been rotating. 2.6 Tuner Selection In models fitted with 2 tuners, tuner 1702 is used for TV operation and tuner 1301 for video signal recording. Repair tip: With the tuner selection function it is possible to feed picture and sound of tuner 1301 into the TV signal path and to play these signals back. Activating the Tuners With the ]| buttons on the remote control, select the line "DISPLAY TUNER". or button on the remote control allows to switch Pressing the over between the two tuners. The active tuner (TV / VCR) is indicated on the screen.

IC7880 SAA5281

I2C Businterface

Control Registers

Clamp AD-Conversion
Data slicing and Acquisition
11 Digital PLL 13 Oscillator 12 Sync separation and processing Acquisition and Display Line Counters

ODD/EVEN OR DV

8k Memory 38
Character Generator Buffers Character ROM

37 /2 36

2 - 8

Descriptions

Description
1. Power Chassis (PLSP) 1.1 Power Chassis Power Supply
Typical Data: Mains voltage: 196265V~ Mains frequency: 4565Hz Maximum power: 130W Switching frequency: 3085kHz Efficiency: 80% at maximum load Short-circuit protection provided for all outputs Principle of the Blocking-Oscillator Type Transformer During the conducting phase of the switching transistor T7330 energy is transferred from the mains to the transformer. This energy is fed out to the load during the phase the transistor is switched off. By means of the switch-on period and the frequency the energy transfer during each cycle is so controlled that the output voltages are independent of changes in the load or the input voltage. Controlling and driving the switching transistor is effected by IC7310. The Different Load Conditions No-load operation (STANDBY / TIMER record programming): From the power consumption the IC7310 recognizes no-load condition and reduces the frequency to 30kHz to minimize the switching losses at the Power-MOS transistor T7330. Normal operation (control range): The switching frequency decreases along with the increasing load. The duty cycle is mainly controlled by the mains voltage. The output voltages are influenced by the load to a minor extent. Reversal point: At this point of the output characteristic the maximum power is transferred. Overload: The power supply operates in Burst Mode (polling operation mode), i.e. the energy of each cycle is limited so that the output power is low. Circuit Description The mains voltage is rectified by the bridge rectifier D6313D6316 and filtered by C2315. L5311 is provided to protect the power supply against interfering pulses from the mains. During the starting phase the power for IC7310 is supplied to +U Pin 1 via R3331 and C2310. After the starting phase the t power is obtained from the IC7310-(8) -U transformer winding 4 / 3 and D6334. The inductance of the primary windings 1 / 57 deUGS termines the natural frequency of the switched mode power t IC7310-(3) supply in normal operating mode. The maximum frequency IDmax ID Point of Reversal is determined by C2327 at IC7310-(10). T7330 t During the switch-on period of the switching transistor T7330 UDS the current of the rectified mains voltage flows through the primary winding of the transformer T7330 t (contacts 1 / 57), T7330 and R3334, R3335 to ground (in the primary side). Since the voltage at contact 1 of the transformer is almost constant the current rises linearly. The intensity of this current depends on the mains voltage and the inductance of the primary winding. In the transformer, a magnetic field develops which corresponds to a certain amount of energy. During this phase, the diodes are cut off due to the polarity of the secondary voltages. Via the resistors R3334, R3335, R3359 a voltage which represents the primary current is fed to Pin 7 of IC7310. If this voltage exceeds a certain level depending on the control voltage at IC7310-(14), the switching transistor T7330 is switched off. This process is repeated whenever the switching transistor T7330 is switched on. As soon as the switching transistor T7330 is switched off the energy transfer to the transformer is stopped. The energy accumulated in the transformer is now transferred to the secondary windings. Due to the fact that the polarities of the voltages are reversed by the transformer

current flows through the secondary windings of the transformer, through the diodes, electrolytic capacitors into the load. When the whole amount of energy stored in the transformer has been transferred to the load and no magnetic field is left in the transformer, the voltages at the secondary windings fall below 0V. These zero passages are detected by IC7310 at Pin 8. The transistor T7330 is switched on again and the next cycle is started. Control of the switched mode power supply is effected by varying the conducting phase of the switching transistor to the effect that the energy transferred from the mains to the transformer is increased or reduced. The control information is obtained from the transformer winding 3 / 4 and is taken via D6335 / C2337 and R3356R3358 to Pin 14 of IC7310. The amplifier "ERROR AMP" IC7310 compares this voltage with an internal 2.5V reference voltage. By means of this comparison the level of the voltage used to be compared with the voltage at Pin 7 of IC7310 (representing the primary current) is changed. During the period T7330 is switched off, C2332 / D6332 and C2331 / R3345 limit the voltage peaks in the primary side. To avoid static charges the gate of the switching transistor T7330 is provided with the pull-down resistor R3339. The voltage at Pin 5 of IC7310 is used for stepping down the current and the voltage in shortcircuit conditions (FOLD BACK). The maximum power possible to be taken from the secondary side is determined by R3334 / R3335. At 1V (typically) on IC7310-(7) the power supply unit reaches the reversal point. The external circuit at Pin 11 is an option of IC7310. By means of C2320 the pulses in the start-up phase are shorter so that the switching frequency is outside the audible range. From the secondary side, eleven voltages (Ubat, 33A, 14H, 14/9M1, 14M1, 14M2, 9A, 5D1, 5D, 5A and -7V) are available which are rectified and filtered by the respective components (diodes / capacitors / chokes). In Standby mode, the 5D1, 5D, and 5A voltages are switched off by the "STBY" switching voltage via T7351 / T7532. The Start-up Phase When connecting the video recorder to the mains the following voltages at the pins of IC7310 start to rise at time t0 (see fig.): The voltage V cc , No-Take Over Loop Failure >2ms Vcc IC7310-(1), increases Start-Up Re-Start Vcc prot according to the halfVcc start Normal Mode wave charge via R3331 Vdis1 until it reaches the voltVdis2 age level Vcc Start at the IC7310-(1) t typical current conVref sumption (Icc) of 0.3mA. The internal reference voltage Vref of IC7310 IC7310 int. t is switched on as soon as Vcc Start is reached UVLO1 and the current consumption increases to IC7310 int. t 17mA. The voltage at Pin 11 of Vpin11 IC7310 rises linearly up to 2.4V. During this pe- IC7310-(11) t riod, IC7310 drives the Power-MOS transistor Vovp out T7330 by shortened pulses. t IC7310 int. If the voltage V cc , IC7310-(1), falls below Output the limit value Vdis2 before the reversal point is IC7310-(3) t reached the start-up is stopped. For this, the Icc drive to T7330 is 17mA stopped and IC7310 0,3mA t switches off the internal IC7310-(1) Vref (Icc = 0.3mA). The voltage Vcc increases according to a half-wave charge via R3331. The next start-up cycle commences. Normal Operation, Overload and Standby Operation As soon as the power supply stage is working, IC7310 operates in the normal mode (control range). The voltage at IC7310-(14) is 2.5V (typically). If the load in the secondary side increases, the switch-on period of T7330 is increased. As a result the peak voltage value at IC7310-(7) "representation of drain current" increases.

reference between the horizontal synchronising signal and the actual position of the electron beam. To establish the position of the beam the line flyback pulses are fed back to IC7200-(38) for evaluation. The resulting control voltage is smoothed by C2204 at IC7200-(39). The horizontal position of the picture is also determined by the preset R3206 (H-SHIFT) on pin 39. This introduces a DC voltage off-set to shift the picture. The horizontal pulses (HDR) are passed through IC7200-(37) and plug contact 1911-(2) to the horizontal output stage on the Power Chassis. After counting up to 312 line pulses, the line counter (Vertical Divider) feeds out a vertical synchronising pulse. This pulse triggers the sawtooth generator of the vertical output stage of IC7200 which works to the principle of a constant current source. For this, the capacitor C2200 is connected to IC7200-(42). For various settings (vertical linearity, picture height, and vertical position) the vertical output stage of IC7200 obtains from the vertical output stage on the Power Chassis the "VFB" feedback signal via IC7200-(41). The preset controls influencing the "VFB" feedback signal are located on the Power Chassis. The compensated deflection saw-tooth leaves the IC7200 from pin 43 and passes on via plug contact 1922-(5) to the vertical output stage on the Power Chassis.
3.4 Signal Chassis Frontend 2 (TU2)
In models fitted with 2 tuners (one for TV, one for video) the Frontend 2 has the function of amplifying and demodulating the IF signal fed in from the tuner for video recording. The resulting signals are the CCVS signal and the audio signal. Signal Processing with IC7300 Coming from the tuner contact 1301-(17), the IF signal passes through the surface acoustic wave filter F1320, which determines the IF band pass. Via IC7300-(1/2), the signal is fed to a gain controlled wideband amplifier with synchronous demodulator, and subsequently, to a video amplifier. Another stage in the IC is used to generate the control voltage for the wideband amplifier and the tuner. This control voltage is fed from IC7300-(12) to the tuner (contact 5). The control threshold level is adjustable with R3341 (AGC2). Between pin 13 and pin 14 of the IC7300, the demodulated IF signal passes through a sound trap F1340, in which the audio component of the CCVS signal is suppressed. Subsequently, the signal is amplified and passed on to the "IN/OUT" circuit stage (as a "VFV2"-signal) via IC7300-(7) and the amplifier T7310. The demodulated IF signal for FM sound processing is fed out from IC7300-(13). Via the IF filter F1345 and IC7300-(11), the signal is fed in for FM demodulation. On IC7300-(9) the AF signal "AFV2" is present and, following the deemphasis circuit R3324 / C2319 and the amplifier T7309, it is fed via the "IN/OUT" circuit stage to the Sound stage. Signal Processing with IC7301 In IC7301, the video and audio signals are separately processed and demodulated. Video signal processing From tuner contact 1301-(17), the IF signal passes through the surface acoustic wave filter F1320, which determines the IF band pass. Via IC7301-(1/2), the signal is fed to a gain controlled wideband amplifier with synchronous demodulator, and subsequently, to a video amplifier. Another stage in the IC is used to generate the control voltage for the wideband amplifier and the tuner. This control voltage is fed through IC7301-(16) to the tuner (contact 5). The control threshold level is adjustable with R3341 (AGC2). Between pin 18 and pin 19 of the IC7301, the demodulated IF signal passes through a sound trap F1340, in which the audio component of the CCVS signal is suppressed. This is not necessary for the SECAM-DK and SECAM-L standards. In this case, the sound trap 1340 is bridged by IC7312-(1114). Finally, the signal is amplified and fed through IC7301-(8) and the amplifier T7310 to the "IN/ OUT" circuit stage (as a "VFV2" signal). Audio signal processing From the tuner contact 1301-(17), the IF signal passes through the surface acoustic wave filter F1322, which determines the IF band pass. Via IC7301-(27/28), the signal is fed to a gain controlled wideband amplifier with synchronous demodulator. On one path, the demodulated IF signal is directly fed through the AM demodulator to the output amplifier. On another path, the signal is fed out from IC7301-(17) for FM demodulation. After the IF filter F1345 or F1346, the selection switch IC7312-(1/2/10/15) and IC7301-(15), the signal is passed through the FM demodulator (FM-PLL) to the output amplifier. As "AFV2", the signal is taken via IC7301-(10) to the "IN/OUT" circuit stage.

2 - 14

signal is added to the Y-signal. The sum signal (FMRV) is passed through the amplifier stage T7018 / T7019 and plug contact 1902-(2) to the head amplifier. Playback Via plug contact 1902-(9) the signal from the tape (FMPV) arrives at IC7051-(38) in the chroma circuit stage. The signal is then fed through two R/P switches to the chroma lowpass filter where the 627kHz chroma signal is selected. Subsequently, the 627kHz chroma signal passes through a 6dB amplifier, a gain controlled amplifier (ACC AMP), and arrives via a burst emphasis stage (not active) at the main converter (MAIN CONV) where it is mixed with the subcarrier frequency (5.06MHz). The reconverted chroma signal (4.43MHz) is fed through an R/P-switch to the integrated chroma bandpass (FSC BPF). On one path, the signal is then taken via IC7051-(24) and IC7060-(2) directly to the comb filter in IC7060. On another path, it is additionally inverted for PAL/NTSC and passed on via the MESECAM switch, IC7051-(23) and IC7060-(4), to the comb filter in IC7060. The function of the comb filter is to delay the inverted signal from IC7060-(4) by 2 lines periods for the PAL system (by one line for NTSC) and to add it to the direct signal coming from IC7060-(2). These two paths form the so-called "comb filter" for crosstalk compensation. On MESECAM mode, only the direct signal is taken to the comb filter. Consequently, there is no other signal available for the comb filter to add so that it is out of operation. At Pin 23, the comb filter IC7060 feeds out the chroma signal and passes it on via pin 26 to IC7051. In this IC, the signal is fed through a MESECAM selection switch, a lowpass filter (LPF), an R/P switch and an amplifier stage with colour killer. Having passed the chroma bandpass filter (FSC BPF), IC7051-(29/28), and the chroma noise reduction (CHROMA N.C.), the signal is added in the "Y/C-MIX" stage with the internally supplied luminance signal. The following signal path corresponds to that of the luminance signal. Carrier Preparation (PAL/NTSC) Record (PAL) For carrier preparation use is made of a voltage-controlled quartz oscillator (VXO) in IC7051 the oscillating frequency (4.433619MHz) of which is determined by the quartz (Q1000) connected to pins 32 and 31. The REC-APC detector compares the phase of the transmitted burst with that of the VXO and controls the latter accordingly. The control voltage provided on IC7051-(33) is smoothed by C2008, R3001 and C2009. In addition, an oscillator (321FH VCO) is used which is integrated in IC7051 and controlled by the synchronising frequency. The VCO oscillates at a multiple of the line frequency (321fH) which corresponds to a frequency of 5.015625MHz. This frequency is divided by 8 in a 4-phase shifter. Subsequently, it is fed to the sub-converter (SUB CONV) where it is mixed with the VXO oscillator frequency (4.433619MHz). The result is the subcarrier frequency of 5.06MHz. The subcarrier passes through an internal 5.06MHz bandpass (SUB BPF) and is then fed to the main converter (MAIN CONV). Playback (NTSC/PAL) On playback use is made of the quartz frequency (Q1000 4.433619MHz) of the free running XO quartz oscillator as a reference, and the VCO oscillator. After reconversion of the chroma signal from 627kHz (PAL) or 629kHz (NTSC) to the 4.43MHz subcarrier frequency the VCO is now synchronised by the burst of the played back chroma signal. The PB-APC stage generates the control voltage for the VCO comparing the phase of the quartz oscillator with the phase of the reconverted 4.43MHz burst. The time constant of the filter circuit which is connected to IC7051-(37) is determined by C2003, R3000 and C2004. In the 4-phase shifter, the frequency is divided by 8 and fed to the sub-converter (SUB CONV) where it is mixed with the XO oscillator frequency. The result is, among others, the subcarrier frequency of 5.06MHz. The subcarrier is supplied via an internal bandpass filter (SUB BPF) to the main converter (MAIN CONV).

which is applied to pin 21 of IC7151. The bandpass which follows then reduces the harmonics resulting from the frequency division and the signal is routed to pin 19 of IC7151. Afterwards, it is subjected to a 10dB amplifier and switched to pin 15. Between pins 15 and 14, the 1.1MHz signal is fed through an "anti-gaussian filter circuit" (Q5108). The signal is limited then in IC7151 and passed via pin 17 to the adjustment control for the SECAM chroma recording current, R3027 (SECAM-CURR.), to the junction R3027 / R3023 where the signal is added to the Y-signal. The sum signal (FMRV) is taken via the amplifier stage T7018 / T7019 and plug contact 1902-(2) to the head amplifier. Control of the switches in IC7151 On recording, a LOW level (0.7V) is present at the collector of the transistor T7105. This transistor works like a diode, turns on and applies approximately 1.3V to IC7151-(23). From this level, the following detection stage can identify the recording mode and switches all incircuit switches to record position. Playback On playback, the "uncontrolled FM signal from the tape" (FMPV) is taken to pin 23 of the IC7151 and is then amplified by 6dB. From pin 21, the signal is fed via a bandpass to IC7151-(19). Between pins 19 and 18, the obtained 1.1MHz signal passes through a 10dB amplifier; via pin 16, it is fed to another amplifier in IC7151 whose feedback path contains an "anti-gaussian filter circuit (Q5108)" which is connected between pin 14 and pin 16. In the AGC stage following the amplifier, the signal undergoes an automatic gain control (AGC) and its frequency is doubled (2.2MHz) in the full-wave rectifier "RECTIFIER f x2. From IC7151-(10), the 2.2MHz signal is fed to the bandpass (R3126R3127) which removes disturbing harmonics from the wanted signal. In another doubling stage which obtains the 2.2MHz signal from IC7151-(8), a 4.4 MHz signal is generated. This signal is subsequently amplified by 10dB and is fed to the colour killer via pin 31, the antigaussian filter circuit (Q5100) and pin 32. From IC7151-(1) the 4.4MHz signal is fed into the bandpass (R3122C2121) which separates disturbing harmonics from the wanted signal. The resulting SECAM chroma signal is taken via the impedance converter T7106 to IC7051-(28) where it is added to the CVS-signal.
3.7 Signal Chassis Standard Sound (AL)
Function Overview On record, the AF signals fed into the Standard Sound circuit stage are supplied to the record input of IC7601 and are afterwards prepared for longitudinal track recording. On playback the AF signal obtained from the R/P-head is amplified and then fed to the TV Signal Electronics and the EURO-AV socket. 3.7.1 Record The AF signal (AMLR) selected in the "IN/OUT" circuit stage is fed via IC7601-(11) and an automatic level control stage (ALC) to a linear amplifier (AMP). The AF signal is taken from IC7601-(13) via C2611, R3612, R3613 and IC7601-(14) to the integrated record equalizing amplifier (AMP). It leaves the IC7601 on pin 17. The AF signal is added to the record bias current at the junction R3617 / R3618 and passed on via the plug contact 1901-(1) to the R/P-head. The other end of the R/Phead is connected to chassis via 1901-(3), R3600 and IC7601-(2). The record bias voltage is adjustable with R3618 (BIAS). For the "LP" function, switchover of the record equalizing circuit is carried out by the switch EP CTL in IC7601. 3.7.2 Erase Oscillator The free running oscillator for the full-track and sound erase heads consists of the transistor T7603 and the resonant circuit F5603 / C2622. From this oscillator also the bias voltage (BIAS) is derived. The oscillator is operated from the record switching voltage "IREC" (active at LOW level) from the deck computer IC7410-(9) and the transistors T7606 / T7605 / T7604 which follow. 3.7.3 Playback On playback the R/P-head is connected to ground potential via IC7601-(1) and the plug contact 1901-(1). The AF signal picked up by the R/P-head is fed via 1901-(3) to IC7601-(2). The signal passes in IC7601 through an integrated playback equalizer (EQ) and is then fed via IC7601-(8) and the level control for playback, R3606 (PB-LEVEL), to IC7601-(9). Afterwards it is amplified in a linear amplifier (AMP). The AF signal leaves the IC7601 from pin 13. After the amplifier circuit IC7608 with line frequency rejection filter, the signal (AMLP) is fed via

Test Equipment / Aids: Digital Voltmeter, Colour Generator Alignment 1. Black level SCREEN R3920 (RED-Cutoff) R3918 (GREEN-Cutoff) R3917 (BLUE-Cutoff) Preparation Allow the set to warm up (for approx. 15 minutes after switching on) and carry out the following adjustments: Contrast "84% = maximum minus 4 divisions on OSD scale" Brightness "50%" Screen grid adjustment control (SCREEN) "left stop" R3919, R3921 "center position". Feed a black test pattern into the AV socket. With the cutoff controls R3920, R3918 and R3917, set the following levels at the R, G, and B inputs of the picture tube dependent on the TVR model: TVR 3710 / TVR 5100 : 115V TVR 5500 : 140V Feed in a grey scale pattern. Alignment Procedure Turn the screen adjustment control (SCREEN) on the line transformer until the beam just becomes invisible again. Repeat this brightness ajdustment at the individual cathodes using the respective controls R3920 (RED-Cutoff), R3918 (GREEN-Cutoff) and R3917 (BLUE-Cutoff).
2. White balance R3919 (GREEN-Gain) R3921 (BLUE-Gain)
Set R3919 (GREEN-Gain) and R3921 (BLUE-Gain) so that no discolouration is visible in the grey scale.
3. Signal Chassis (PSSP2) 3.1 Signal Chassis TV Signal Electronics (TV)
Test Equipment / Aids: Digital Voltmeter, Oscilloscope, Colour Generator Alignment 1. Demodulator circuit PAL, L5705 (AFC1) SECAM-L, R3729 (LADJ1) 2. Start-up of the tuner control voltage R3712 (AGC1) 3. Horizontal position R3206 (H-SHIFT) Preparation Connect tuner 1701/1702-(5) to GND. Digital voltmeter:. keyboard control IC7801-(24) Reception: PAL-BG Colour generator 38.9MHz, 35mVrms to tuner 1701/1702-(17) Adjust the voltage to 2.5V 0.2V with L5705 Reception: SECAM-L, band 1 (channel 04) Colour generator 33.95MHz, 35mVrms to tuner 1701/1702-(17) R3712 to "left stop" Feed in a white test pattern without sound carrier (UHF range, channel 24, 67dBV aerial signal) into the warmed up TVR. Oscilloscope:.. tuner 1701/1702-(17) Feed in a FuBK test pattern. Disconnect GND. With TDA8361/N5 (IC7200) fitted: With R3712 (AGC1) set the voltage to 500mVpp -1dB. With TDA8362/N5 (IC7200) fitted: With R3712 (AGC1) set the voltage to 400mVpp -1dB. Adjust with R3206 (H-SHIFT) so that the no longer visible edges at the right and left of the picture are symmetric to the screen.

(AFC1).

Alignment Procedure
Adjust the voltage to 2.5V 0.2V with R3729 (LADJ1).
Test Equipment / Aids: Frequency Counter Alignment 1. Clock, C2814 (CLOCK) Preparation Connect IC7801-(7) and IC7801-(64) via a 1k resistor. Connect IC7801-(28) to GND. Frequency counter:... IC7801-(7) Connect the TVR to the mains. Alignment Procedure Adjust the period to 122000ns 0.035ns with C2814 (CLOCK). Remove the 1k resistor and the GND connection.

1311 T2,5AH

DC, 5V/Div, 20s/Div T7583 Basis 49

BYT470p

5354 80E 7

7310 100n

Vdem in

2328 BYT54 BYT54 0E3335

Vdem out Sync C T R standby F Iref R standby P STANDBY (REDUCED FREQUENCY) Iref OSCILLATOR Vosc prot Vosc Set Latch Reset Vovp out THERMAL SHUTDOWN Vref Vcc Q BUFFER OUTPUT 3 GND 4 Vc 2

10 470p 2,6V 33k 2,6V

BYV10-20 0E82 3334

3327 5k1 2325

82p 0,3V
DEMAGNETICATION MANAGEMENT

560p 0,3V

2.5V VOLTAGE FEEDBACK E/A OUT Dmax & SOFT-START CONTROL CURRENT SENSE INPUT 5 1,3V 7 Iref ERROR AMP CURRENT SENSE

OVERVOLTAGE MANAGEMENT

2,5V 14

2324 1n

OVERVOLTAGE PROTECTION 6 UVLO1
FOLDBACK 3324 FOLDBACK INPUT

100E 2335

HOT CIRCUIT , BE CAREFUL AND USE AN ISOLATION TRANSFORMER WHEN SERVICING DO NOT OPERATE WITHOUT CASE CAUTION : LETHAL POTENTIALS AT PRIMARY

HOT GND

BECAUSE A HOT GROUND IS PRESENT IN THE POWER SUPPLY CIRCUIT, AN ISOLATION TRANSFORMER MUST BE USED. ALSO, IN ORDER TO HAVE THE ABILITY TO INCREASE THE INPUT VOLTAGE SLOWLY, WHEN TROUBLESHOOTING THIS TYPE OF POWER SUPPLY
CIRCUIT, A VARIABLE ISOLATION TRANSFORMER IS REQUIRED. HOT PART

4 - 25

4 - 26
GND5D GND5A 14/9M1 GNDM GNDM HDEF2 VDEFH HDEF1 VDEFL STBY Ubatlot 14M1 5Stby 14M2

20u 80E 6k3527 1k

3587 33k

TO TUBE PCB/1991

5363 80E BYW36

2587 Ubat

100u 5366 22u 3598 12k 12k

3541 15k

680E 100n

2552 100n

6372 BYW98-200 2381

680u 1k

BAV21 6583

6373 BYV10-20

5352 22u 5353 22u

1371 T2,5A

3537 1E0

330p 3588

3532 1E0

BYD33D 2E7 2E7

3592 8E2

2353 100n 2512 470u

2351 470p 10

3352 820E 1k

Flyback

Driver

Output Stage Generator
VDEFL 9531 BZX79-C15 BAV21

6551 BZX79-C4V7

BAV21 2513

680E 3513 3512

9512 2516

3536 5k6

3530 1k8

3579 3k820E

2517 2n2 10n

3514 120E 3517 120E

3554 22k

2555 100n

3519 2k7

2200u 10k 3556 220E

3523 2E7 2E2 100E
1003 D E D C D GHBPLB BJB DG H G CD F D K K J I H HH H EFKJL L K JLJFGGHLHKJGIJLLMLMOMGFLNHMHDFFEIDFC C D B CCK K I I G F G I I EC H H JG NK K LKKKJL M M K IN M IHLDDDELLMMMNOOPLPDMLJHLHIEFFNMLONPFK26

4 - 27

M26 G19 L32 L33 H22 D23 H21 B28 I32 G26 I26 F22 F26 F22 H24 D8 D11 H10 C17 G17 G17 H11 D14 D13 E13 I16 F15 F14 F16 F16 G15 J16 C22 B31 M32 G22 D10 C10 C10 D10 F10 J10 L9 I10 I10 M16 I7 J14 E14 F14 G14 G15 K14 H14 I15 I27 L22 L31 K31 K31 L28 F34 L28 L32 D23 G21 K32 I33 G5 G9 D15 J16 K18 J17 I22 M30 L26 F23 H21 H25 G21 G13 F9 G6 D5 E5 K13 B9 C9 G1 L25 K28 M20 C28 I31 F24 G23 O29 L31 E25 K29

4 - 28

Leistungs-Chassis / Power Chassis TVR 5500 (PLSP)
Vdem in 82p 0,3V 9 Sync C T R standby F DEMAGNETICATION MANAGEMENT Vdem out Iref OSCILLATOR

4n7 3339

Vosc prot Vosc Set Iref Latch Reset Vovp out THERMAL SHUTDOWN Vref Vcc Q BUFFER

BYV10-20 BYT54 0E0E3335

470p 2,6V 33k 2,6V 3327 5k560p 0,3V 12

R standby P

STANDBY (REDUCED FREQUENCY)
OVERVOLTAGE PROTECTION 6 UVLO1 Vref
FOLDBACK 3324 100k FOLDBACK INPUT

4 - 29

4 - 30

DEFLECTION A

B ANODE TO CRT
80E 1n 3313 3MVDEFH VDEFL STBY 47u 3k3527 1k 3587 33A Ubat 33k 10n

47u 400M 3589 39E focus

C FOCUS TO TUBE PCB/1991

7331 3394

TO TUBE PCB/1993 D

5363 80E 80E 6361 BYW36

2587 Ubat 9529
2362 100u 5366 22u 3598 6k8 6k8

8 9522

G 3541 10k

470p BYW98-3372 2374

7587 BC548B 5D10 33n
6373 BYV10-22u 5353 22u 680u 1k

7584 MPSA43 3585

3537 5E6

6392 1nT2,5A

3360 390E 2392 10u 15
3364 BZX85-C6V8 390E 6393

BYD33D 2E470u 2E7

9A Thermal Protection 14H 220k 2353 100n Output Stage Protection Guard Circuit 3354 Voltage Stab. & Current Source

TDA3654/N3

BYW98-560u 2351 470p 5374 22u

7352 MTP3055E

820E 1k Flyback Driver Output Stage Generator

BYT54 3351

BAV21 VDEFL 6553 BZX79-C10 BAV21 GND VDEFH 5DBZX79-C4V7 220E 6584

2kBC548B

2378 1n 2352 680u
1n 180E 1n 3536 3k9 BZX79-C9V3530 3k9

BYD33D 3512 1k1k

7578 BC558B BZX79-C24 6554

100n 3579 1k 3518

330E 2520

3554 47k

100u 3519 2k7

2200u 270E 10k 9524

1E1E8 100E
C3 C4 D4 B7 D5 G13 H13 B15 P20 L33 B9 B19 I33 B9 D10 G7 H8 G6 B12 C9 E9 D7 K6 J2 J2 I2 H2 H10 G2 H8 E10 F10 K10 I10 K9 L9 K4 J14 K15 J18 E14 F14 F15 G15 L14 H13 K14 J14 G14 I14 J27 L22 K20 M19 L24 M20 N25 M26 G33 F22 L30 M28 G21 L32 G22 D24 E25 E25 D23 C27 I34 C27 F21 B3 B6 D6 B8 C11 C12 K3 J2 I2 H2 G4 F9 G7 H9 H9 C8 G8 H9 J11 G2 M16 E10 J9 K3 K18 K16 J17 J18 I18 L8 M8 M8 K4 H14 N8 M8 H14 G14 L14 C14 C14 D16 D16 L22 L22 M24 L26 M27 N27 O26 O26 L28 O25 C22 M27 L20 I28 G31 L19 G31 H28 E33 E33 F33 M29 L29 L31 N27 M30 O24 F21 K26 L26 G19 K32 L33

2863 not used

SCL2 to TU2,TV

20 AKP

3865 10k

3866 10k

3867 10k

3833 3k3

19 SCL to TV,TXT SDA to/from TV,TXT

5 GNDDE

3864 100E

4 GNDDE

3834 3k3

3863 100E

54 P33(TC4) P00 P01 P02 P03 P06 P5 6

for VCD only

3827 10k 3828 10k

3826 4k7

for TU2 and MSTD only

ITL ITR

PLAY 1850 (GRU) G

REW 1851 (GRU)

STOP/EJECT 1853 (GRU)

GNDD GND

4,9V 23
4,9V 22 5,3V 5,3V Not used
5DS 5STBY 5DS 5STBY 5STBY 21 20
0V 4,8V 0V 4,8V 5,3V 0V 4,5V

Pr-Up 1854 (GRU)

Pr-Down 1856 (GRU)

Vol- 1857 (GRU)

3813 6k8

21 AKP 1502

H (GRU)

Vol+ 1858

REC 1859 (GRU)

(GRU) 1860 STBY

WIND 1861 (GRU)

3822 100E

for TU2 and MSTD or for TU2 and SEC-DK only

3877 10k

3849 270E

3848 270E

3869 220E

3868 220E

DATD1 to DE DATD2 from DE
P13(DVO) P14(PPG) P15(TC2) P16 P17 P54(AIN2) 45 46
P10(INT0) P11(INT1) P12(INT2/TC1) P57(AIN5) P56(AIN4) P55(AIN3) 44

TLHR4205 TIMER

3816 2k2
for TU2 and SEC-DK or TU2 and MSTD only

TLHR4205 REC

3861 270E

3860 270E

for MSTD
CLKD1 to DE 5DS 5STBY CSI to VS,TV 3830 4k7 6830

0,3V 0V

382 10

3857 6k8

3853 100E
100E for 0E for GRUNDIG GRUNDIG

3879 100E

3878 100E

MES to VS AFC1 from TV

3898 10k 3899 0E

3824 4k7

for RGB-SC

3854 220E

1N4148

3829 10k

VSS 1 32

3856 120E

3862 0E 5STBY

BC848B

3858 220E

2,3V 7860

PAL SECAM-L MESECAM CSI 0,2V MES 0,7V

7861 BC848B GNDD

1 XTAO 1801

3859 6k8

L L STBL1

LSG3331-JO

TLHR4205

for GRUNDIG

XTAI 3

4800 0E

not used 5

STBY/ON 6

STBY/ON 7 8

3855 330E

from IO

4 - 43

4 - 44

f NTSCPB

3808 150k

4084 0E

5840 6u8
for VPS+TU2 or PDC+TU2 only for VPS-TXT or PDC-TXT only

220u 10V

5801 6u8

3891 3k9

Laufwerkplatte Sensoreneinheit / Tape Deck Sensor Panel

3872 15k 3873 1k

E2 G16 K12 C17 B11 A16 G1 G2 G4 G1 G3 G4 H1 H2 H3 H4 G1 G2 G3 G4 H1 H3 H4 I1 I2 I3 I4 K1 J1 A15 A17 C17 F19 F20 F20 F18 F21 F21 C10 C10 C11 C10 C10 C8 A9 A10 E7 E8 B3 D3 D2 C1 B1 D3 E3 A22 A16 C11 D20 E21 E20 E18 E20 E20 F17 F17 F20 F21 C1 G15 G18 A2 I16 G21 H22 H22 H19 I17 H16 I17 J16 J17 F16 G15 G15 J11 J10 I11 D11 E8 E8 A8 A9 A9 A11 A20 D8 C7 C3 D2 C2 D1 B1 C1 I7 I6 B2 A2 A3 J7 J9 K9 J7 J9 K7870 K10 I7 I6 K8 E4 E4 E6 E6 E7 I6 I5 A18 A19 A19 A19 A21 A22 E10 H8 J6 J5 A16 J15 J15 A1 A1 F17 K9 A13 A2 A3 A12 A17 F18 F19 H19 J10 J7 J6 K6 K6 I6 I5 C13 A10 A8 B8 E5 H22 B6 K9 K10 A23 B20 A20 B19

75988-017.23 75988-017.23 75988-017.28 75988-010.52 75988-017.23 75988-017.23 75988-017.23 75988-017.23 75988-010.52 75988-017.23 75988-010.52 75988-010.52 75988-010.52 75988-017.28 75988-010.52 8140-526-326 75988-021.19 8140-526-412
DROSSEL/CHOKE COIL DROSSEL/CHOKE COIL SPULE 22UH/COIL SPULE 22UH/COIL DROSSEL/CHOKE COIL DROSSEL/CHOKE COIL DROSSEL/CHOKE COIL DROSSEL/CHOKE COIL SPULE 22UH/COIL DROSSEL/CHOKE COIL SPULE 22UH/COIL SPULE 22UH/COIL SPULE 22UH/COIL SPULE 22UH/COIL SPULE 22UH/COIL DR AX 0411-GA 47UH SPULE 10U PM5 SPT0508/COIL DR AX 0411 10UH WIDERST. VR37 4,7 MOHM WIDERST. VARIABEL PTC-WIDERST. 2K 265 VS WIDERST.3,9MOHM WIDERST.3,9MOHM/ RESISTOR MSW OHM 5% AX. CERM TRIM 4,7KOHM PM25 ESTR.P6/A 100 OHM LIN ESTR.P6/A 4,7 KOHM LIN MSW NB 0207 4,7 OHM 5% GA MSW NB 0207 4,7 OHM 5% AX MSW NB 0207 4,7 OHM 5% AX MSW NB 0207 4,7 OHM 5% GA
0009.000 0067.000 1000.000 1300.000 1926.000 1931.000 1933.000 1961.000 1962.000
75988-010.55 75988-017.49 75988-015.19 75988-021.31 75988-021.35 75988-021.36 75988-021.37 75988-021.32 75988-021.33
SICHERUNGSHALTER FLEX.LEITUNG1926-1969(4P) NETZSCHALTER FUNKENSTRECKE STECKVERB. 4P DIPMATE STECKVERB. 5P HSJ 1406 STECKVERB. DOPPEL CIN 4P SOCKEL BILDROEHRE 4454-S FLEX.LEITUNG AQUADAC 14"
FUSE HOLDER FLEX. CABLE 1926-1969(4P) POWER SWITCH SPARK GAP CON 4P DIPMATE CON 5P HSJ 1406 CON DOUBLE CIN 4P CRT SOCKET 4454-S FLEX. CABLE AQUADAC 14"
S 75988-019.20 S 75988-027.62 S 75988-017.93 S 75988-001.77 S 75988-001.77 S 75988-019.21
75988-033.04 8792-001-309 8792-001-146 75952-030.91 75951-701.18 75951-701.18 75952-030.91
C 2311 C 2312 C 2315 C 2328 C 2335 C 2352 C 2363 C 2373 C 2374 C 2379 C 2512 C 2519 C 2584 C 2585 C 2586 C 2589 C 2592 C 2593
S 75988-017.95 S 75988-021.34 S 75988-017.88 S 75988-017.89 S 75988-019.13 S 75988-005.91 S 75988-019.14 S 75988-005.91 S 75988-005.91 S 75988-019.15 S 75988-019.15 S 75988-019.17 S 75988-017.90 S 75988-017.91 S 75988-017.94 S 75988-017.92 S 75988-019.18 S 75988-019.14
75987-392.37 75987-392.37 75987-392.37 75987-392.37 75988-027.75 75988-027.75 75988-027.75 75988-027.75 8309-516-854 75987-538.95 8309-200-021 8309-516-854 8309-516-854
KONDENS.0,47 UF 250V PM20 KONDENS.1NF 250V PM20 CAPACITOR ELKO 68UF 385V PM20 KONDENSATOR 220P 1KV PM20 KONDENSATOR 100U 25V PM20/ CAPACITOR ELKO 25V 680UF ELKO 47U 200V PM 20 ELKO 25V 680UF ELKO 25V 680UF ELKO 560U 25V PM20 HFQ ELKO 560U 25V PM20 HFQ ELKO 1000U 35V PM 20 VR KONDENSATOR 560N 250V PM5 KONDENSATOR 8,2N 1,6KV PM5 KONDENSATOR 1,2N 2KV PM10 KONDENSATOR 10N 400V PM10/ CAPACITOR ELKO 4,7U 250V PM20 VR ELKO 47U 200V PM 20 ELECTROLYTIC CAPACITOR

2 Etages de rception / Frontend (2 Tuner) Diagonale cran 37cm (diagonale image: 34cm) / Screen diagonale 37cm (visible picture: 34cm) Diagonale cran 51cm (diagonale image: 48cm) / Screen diagonale 51cm (visible picture: 48cm) Diagonale cran 55cm (diagonale image: 51cm) / Screen diagonale 55cm (visible picture: 51cm)

Tableau des quipements

Angle de dviation / Deflection angle 900

Table of Features

Platine mcanique "High Speed Drive" (HSD) 2-Ttes / Head Lecture standard / Normalplay VISS (Recherche de squence) ATS euro plus (Syst. Install. simplifie) "On Screen Display" (OSD) VPS PDC (Contrle d'enregist. de progr.) Tltexte "DOS" SHOW VIEW (Programmation) 6 Programmations diffres / 6 Timer 69 Programmes + EURO-AV + Chinch-AV Prise casque / Headphone Jack Embase EURO-AV / Socket Prises LINE/CV / Sockets

TVR 5130 FR

PH3 PH2 PH1

VCI GND GND ACIM

Component side

THREADING MOTOR L8 L3

5 TMO2 N.C. TMO1

DEFLECTION COIL

B GNDTV R 8V G CTL1 CTL2 AEH1 AEH2 APH GND ARH
TAS INIT LED WTR FTA RECP WTL 5STBY TAE GNDD 14/9 CREV CAP FG GNDM1
REEL 5D GNDM2 GNDD 14M2 PG/FG
GNDA FMPV 5VAS CSYNC ENVC TRIV HSC HP1 FMRV GNDA
CTL1 CTL2 AEH1 AEH2 APH GND ARH
N.C. MEH1 MEHTAS REEL 5D GNDM2 GNDD 14M2 PG/FG TMON.C. 2 TMO1 1

PH1 PH2 PH3

14 INIT 13 LED 12 WTR 11 FTA
5STBY STBY 33A GND5A 5A GND5D 5D GNDM GNDM 14M2 14M2 14M1 14/9M1

Tuner 1

EURO-AV
Circuits imprims et schmas lectriques / Layout of PCBs and Circuit Diagrams

LS2 N.C. LS1

# 2563.

GSPD20

POWER - PCB

HEATER

B GNDTV R 8V G
-7V 9A GND9A VCOMP BCI PROT 8VSW

CRT CONNECTION SOCKET

1966 (1965)

AQUADAC

VRGB GNDA HEATER AQUADAC

SCREEN

FASTON CONNECTOR plugged on PCB

GROUND LEAD ( OPTION )

HFB HDR GNDTV VFB VDR

CRT CONNECTION TERMINAL

VDEFH (Yellow)

VDEFL (Green)

HDEF2 (Blue)

HDEF1 (Red)

1931 EARPHONE-JACK

Signal-Chassis PAL

1933 VIDEO-AUDIO-JACK 1916 EARPHONE-JACK

TURBO/ECO-WD

ERASE-HEAD
1935 BUPI ( OPTION ) Front Cinch Board 1913 AUDIO-CONTROL-HEAD

MEH1 MEH2 5

Rear View

1911 L4 SCANNER

VDR VFB GNDTV HDR HFB

1902 L6

SPEAKER
8VSW PROT BCI VCOMP GND9A 9A -7V

PICTURETUBE

HEAD AMPLIFIER
GNDVS FMPV 5VAS CSYNC ENVC TRIV HSC HP1 FMRV GNDVS
10 RECP 9 WTL 8 5STBY 7 TAE 6 GNDD 5 14/CREV 3 CAP 2 FG 1 GNDM1

Tuner 2

only for 2 TUNER CONCEPT
Plan des connexions / Wiring Diagram TVR 5130 FR

Antenna Input

POWER SWITCH

Powerswitch-PCB

LINE OUTPUT TRANSFORMER 1925
VDEFL VDEFH UBAT HDEF2 110LOT HDEF1 MACH

LINE POWER CORD 1013

1921 1929

Picturetube-PCB

C.I. Ampli de ttes Head Amplifier Board (OHAD)
Vue ct composants / View of Component Side
1910, 1930 > Etage de traitement du signal / Signal Chassis (1902, 1904) 1911, 1912 > Tambour de ttes / Headwheel 1931 > Commande du moteur de tambour de ttes / Scannermotor
A C B B D D D C C E E E E C D D E E 3

2026 5002

Vue ct soudures / View of Solder Side
A A A A A A A A B C B B B B A D C C C C C C E D E D D D E E E E E D D E E E D A A B B B B B C C B C B B B B B B A A A A A B B B E C A C D D D D D D D E D D D D D E E C C E E E E E A C B B B D 2

3098 2021

2004 2003

2013 3017

7051 7052

3008 3007

30093097

3104 3105

2312 3833

97- 02- 06

103_4060. 0_1_2_3

3 A B C D E

C.I. Ampli de ttes Commande du moteur de tambour de ttes Head Amplifier Board Headwheel Motor Control

I5 I4 G5 H4 H5 I

G2 F2 G3 E5 E6

E6 A4 E4 A5 A6 H

A6 E4 G4 A4 A3

E3 A4 H6 G3 F2

G2 F3 F5 E5 H4

7301 F

H5 H7 E4 A3 D6 E D C B A

3303 100E 2304 1u

2303 HMO1

TO SCANNERMOTOR

3302 100E

2318 GNDM2

HMO3 HMO2 HMO0 POS

3304 100E

GND1 PUSH/PULL FLYBACK

MOT1 18

2317 0

330n +14M2

OUTPUT DRIVER STAGE1

CAP-CPC

NC1 THERMAL PROTECT

5301 GNDD

OUTPUT DRIVER STAGE3 MOT3

10n GNDM2 GNDM2

OUTPUT DRIVER STAGE2

2316 0

2314 2u2310 4

2309 100n

GNDA GNDA

2300 22n

MOT0 +

2306 100p

TO SIGNAL CHASSIS DE 1904

L1 1930

0E GNDD 3306
PG/FG ROTATION SPEED & OUTPUT STAGE GND2 DEVIDE BY 2
CTL_IN COMMUNICATION LOGIC TIMING CAP_TI
POSITION PG_IN DETECTOR STAGE
CAP-ST START-UP OSCILLATOR
+5D GNDM2 GNDD +14M2 PG/FG

GNDD GNDM2

PG_out

0 2307

7301 TDA5241
ADAPTIVE COMMUNICATION DELAY

47n 22n

2308 10n

CAP_CDM

CAP_CDS
NOT USED ONLY FOR OHAD 4/X DELETE FOR NEW DE-SW B A 7

S G F E D C

3015 SEE VARIANT - TABLE
14 YCPB SWR VCC 11 SWIN 16 10k CSYN GND22n 2009 22n 3012 2k2

3017 2013

A 8 10n

TRIV 19

V2 V1 V10n 10n H2 GND1 H1 CCI_OUT 8 V2 NC H2 GND1 H1 H3 NC V10 I_OUT 5 6

LH100E

SP I_OUT SP V1 GND1 SP H1 LP V1 47u LP H1 10n 2026 SP V2 LP H2 SP H2 LP V2

0E 3003

E 220E 330E

10n 3018

3006 0E

7020 BC818-40

DTA124EK 7021

STV5742DT 7052

CAGC REC

REC IN

TO SIGNAL-CHASSIS VS 1902

1910 GNDA FMRV HP1

STV5743
CAGC REC REC IN 10n REC 3008 I_OUT SP I_OUT LP LH2=H 3007 SH1=H TRIV CSYN GND2 YCPB SWR VCC SWIN ENVC I_OUT LP
CAGC REC REC TRIV CSYN GND2 YCPB VCC SWIN NC NC SWR IN 10p 2010

B 4k7 10k

TO ROTATING TRANSFORMER
SP/LP H1/H2 LP>SP=H 3009 56k VCC VCC 5002 REC 4k7

VH1/VH1'=H

VHC SHC

STV5744DT

47u REC=H

C CSYNC

H=AGC REC =SP/LP TRIG

VH1'C LH2

VH1' LHC

FMPV REV

C.I. Ampli de ttes Ampli de ttes Head Amplifier Board Head Amplifier

2 560E 5 330E

5101 47u
ONLY FOR FM-AUDIO ( OHAD X/2 )

TO FAMILY BOARD AF 1905

7052 7150
3103 1k 2101 22p 3104 4k7 REC=H
B15 B2 B2 F15 E3 F12 F9 F9 F10 F11 E9 E10 A8 B13 D13 B13 A14 A10 B5 D13 G11 J11 E3 F13 J11 J10 J9 K8 E3 E12 E4 E5 E5 F8 B14 B13 C13 D14 D13 A8 E4 F4 A14 A13 A14 F10 B4 B5 C4 B6 G10 G10 G13 G13 G13 H13 G9 H8 C13 F14 A4 A5 C8 B6 A6 I9

8 5E8E2

3101 0E 16 V1 IOUT 13 12

8 560E 10 680E

3102 11

RAF 10 SWREC SW LOGIC

9 SW-H

3105 3107

4k7 100E

GND2 PROT VMES VIN PROT

FMAP GNDA

STV5712/TR 7150

VARIANT

1911 1912

OHAD 2/0

OHAD 2/0 LP

VCC 1 VCHGND1 H6 CFMOUT 8

OHAD 2/2

OHAD 4/0

OHAD 4/0N

OHAD 4/2
Chssis tage de puissance / Power Chassis (GSPD)
Note: Les modifications du circuit imprim sont ajouter aux pages 4-16, 4-19, 4- 22 du document supplmentaire du Service Manual, numro de rfrence 72010-525.02. Note: These changes in the circuit are to be added to pages 4-16, 4-19, 4-22 of the Service Manual Supplement, part number 72010-525.02.

Vdem in

DEMAGNETICATION MANAGEMENT Vdem out
Vref Iref REFERENCE BLOCK
18V Vref enable SUPPLY & INITIALIZATION BLOCK UVLO1

39E 2309 4n7

Sync C T R standby F

Iref OSCILLATOR

Vosc prot Vosc Set Iref Latch Reset Vovp out THERMAL SHUTDOWN Vref Vcc Q BUFFER

Vc 2 OUTPUT 3 GND 4

13,5V 3V

BAT3325 750E 3326

R standby P
STANDBY (REDUCED FREQUENCY)
2.5V VOLTAGE FEEDBACK E/A OUT ERROR AMP CURRENT SENSE

OVERVOLTAGE MANAGEMENT

MC44603P FOLDBACK Dmax & SOFT-START CONTROL CURRENT SENSE INPUT 5 1,3V 7 0,1V Iref
OVERVOLTAGE PROTECTION 6 UVLO1 Vref

FOLDBACK INPUT

Soft Start & Dmax

11 7340

BC548B

2uBAT85

3326: TVR 37.:750E TVR 51.:820E TVR 55.:1K

TL431CZ

5363 80E 80E

only TVR 37

3361 39E 6361 BYW47u 2364 470p

BYV27-100 2371

5370 80E 22u 9304

470p BYV27-100 2381

1371 T2,5A
1921, 1922, 1923 > Etage de traitement du signal / Signal Chassis (1909, 1911, 1912) 1926 > C.I. Tube / Tube PCB (1969) 1924, 1925 > Tube image / CRT
H A B B B I H H H H C D A B A A B E E A G A E G B B H E H G E H E D D D D C A D B A B B B C C C C A F D D E F F F C D E E C E B E F B G D H H H H H H H H A C G H F G E B A C B F E D F E F E A E A I I H E E F F B B D C B D D A D D C B B B B G B A G C D G H B E B A B B D D D D D B C E D D C C C E D D E F F F G G H H F H F I G G I H I I I F I I H D A F H A B A A G I G I I I B B I I A B C C B D E A E E E B E F D E C F G G G C C A B B A B F D E C D G A E A A D F F F C C E B B C D E G G G G A A C D A C G C B D B F D E E E C C D G H C D C I I C I A E C E A C A C A G A B B A D G I I D A E F B C C C E F H I I G F D C E A F B F I I H E E E D C G I E G I B C C I G G C F A G F A A E F D A B B A G D E G G G A C G E I I H C C D H 13

INTERCARRIER MIXER AM DEMODULATOR 6 17
8p2 TRAVELING WAVE DIVIDER VCO AFC AF AMPLIFIER

2318 220n

3324 4k7 2319
3325 680k 7309 BC847B 10n 3327

6300 BABA792 2,5V

SIF AMP. GNDT 5 3,2V 27
2306, 3319, 3345, 4033, 4035, 4036, 4038, 4041, 4043, 4301, 4302, 4304, 4305, 4307 2300, 2307, 2317, 2320, 2325, 3318, 3323, 3332, 3346, 4031, 4034, 4037, 4040, 4042, 4303, 4306, 9000

+12A 5TS2

10 2V 2,4V 22u 16V 2,4V 2V * 0E

GNDT GNDT

delete for U944C

+12A 8k2 6k8 2V 2V

TDA9800T/V*

3300 1k

4032 1u EL0405

delete for MSTD

0V * 4
4020 0E 4030 3,3V VIF AMP 2 3,3V 2
FREQUENCY DETECTOR AND PHASE FM-PLL VIDEO DEMODULATOR VIDEO AMPLIFIER

2,4V 7 2,3V 2,4V

* 3323

2317 * 5k6

for U944C only

10u 16V delete for MSTD

47u 16V

7304 BC847B

DETECTOR

3347 100E 220p 2328

not used

1u EL0606

GNDT GNDT 5TS1

GNDT 12V 6 VCC2

GNDT 5

1,5V 3346 * 16 12

TUNER AGC IF AGC AGC DETECTOR BUFFER AND NOISE CLIPPING

TUNERCABLE

5TS2 IRV 18

4033 *

1324 L9360M 4

680E * 3345 680E 20

4034 0E

0E 2320 *

2u2 50V 4305 *

2331 1n 3350

3343 4k7 3k3

6302 BA792

* GNDT 7313 BF4 1V 4300 * 0E 4040 * 0E 3V 2325 * 0E 0V 4039 * 100n 7 4,9V 0E 19 2V 18 2V 4037 * 17 2V 0E 15 2,7V 26 4,8V GNDT

40,4MHz-TRAP

4301 *

AGC MIX BPF AMP

GNDT 2327 5p3344 GNDT 3k3k3

4042 *

BPF AGC

U I III U

4036 * 0E
4038 * 5k* 2323 2u2 50V GNDT 2324 4,9V S 10 GNDT 5 1Z 2322 100n E 2,7V GNDT GNDT GNDT 5307 * GNDT 4044 * 2,7V 22u 16V 2321 GNDT 100n 0E 3316 5TS1346

GNDT 22k GNDT

1 Y1 Y1

7312 4053BT

VCO PLL

for SEC-DK only

7312 4053BT 1,9V YYE Vee Vss 330E 1,9V 3339 * 2315 220p

GNDT 4,9V

470E 2313

VCC11 16V 100n 50V 3306

16 Vdd 11 S 14 Z

2 GNDT

470E 2314
100E 2302 100E 100n 5300 6u8 2303

5304 6u8

for SEC-DK or MSTD only

1,9V 22k 5TS2

H = PAL L = SECAM H = B/G L = D/K or MSTD

4041 0E 3

1340 *
K SDA2 to/from CO SCL2 from CO
delete for MSTD PSS2 from CO

GNDT GNDT GNDT

delete 0E for MSTD or SEC-DK

MNT2 from CO

for SEC-DK and pal-i only

4307 0E

2,3V BC847B 7310

VFV2 to IO

H 2,7V

3332 *

5TS1 DTC124EK 7311

MTA from DE I

FOR TUNER2 ONLY
Etage de traitement du signal Module de commande (KSPUx CO) Signal Chassis Keyboard Control Unit (KSPUx CO)
Modifications du circuit imprim du document supplmentaire du Service Manual, numro de rfrence 72010-525.02, page 4-47. Circuit changes to the Supplement, part number 72010-525.02, page 4-47.

5STBY 6801 BAT85

16 GOLDCAP

5,5V for long backuptime

220m 5,5V

5801 6u8

64 VDD

5,3V 4,8V 5,3V

P20(INT5/STOP) RESET P30(INT3/RXIN) P31(TC3) P22(XTOUT) P21(XTIN) P47(PWM7)
P71(VD) P70(HD) P67(Y/BL) P66(B) P65(G) P64(R) OSC2 OSC1 P40(PWM0) P41(PWM1)
5,1V GNDD 5V 0V 0V 0V 0V 3,4V 3,4V 4,9V

2,7V 1,9V 1,3V

GNDD 0

TMP87SX39N

for short backuptime

2803 27p GNDD

P04 P05
Etage de traitement du signal IN/OUT / Signal Chassis IN/OUT (KSPUx IO)
Modifications du circuit imprim du document supplmentaire du Service Manual, numro de rfrence 72010-525.02, page 4-58. Circuit changes to the Supplement, part number 72010-525.02, page 4-58.

for Plug Print only

for front A/V only

45X6 0E CM1918

4503 *

from BUPI

for front A/V only AV CINCH

VID VIDEO

BZX79-C12
for Plug Print or front A/V only
GNDV GNDTV GNDTV * 3550 1k 2

4501 6516

delete for front A/V or Plug Print

4504 * 0E GNDTV

24 GNDTV 9 AKP 3541 100k

5SE2 -7V 3545 220E

0E CM04

AUD GNDA 1919 4

1 45X* 0E

GNDTV 2513 2u2 1502

10 AKP 26
7505 BC847B 4502 0E 3537 -1,1V 3k3

-0,4V 3538 100k 100n -7V

C *Pos.:4503,4504,4505,4506 include for front A/V or Plug Print and not MSTD **Pos.:5500,5501 include for front A/V or Plug Print and MSTD

GNDTV -7V

3511 3512
B9 C10 C10 H16 A14 B16 E11 D15 E14 D16 E15 F11 D1 A5 C13 G10 A4 C12 C11 D13 C14 J5 B8 D13 E12 D14 E10 C15 D15 G15 H15 G14 F14 F13 F12 G12
0.3V 10,6V 33E 3624 +14M1 STBY GNDAL GNDAL

7604 BC328-40 12V 10V 10,7V
7603 BC817-40 GNDAL 47u 16V

3622 0.3V 0V 7,3V

3k+12A GNDAL GNDAL

1n 2620

0V 0.1V

7605 DTC124EK

7606 DTC124EK 3608 GNDAL

12k 3615 390E

2618 GNDAL

3618 100k 3617

12V 0V

5601 10000u

1u 50V

2u2 50V

2626 10n

for LP only

33n 2661

AMP MUTE BUF AMP MUTE

REC/EE CTL EE/PB CTL MUTE CTL EP CTL LP CTL RIPPLE FILTER

POWER MUTE

REC EE POWER MUTE

to Deck L8

GNDAL EE/PB REC EQ EP EP PB ALC ALC DET

2610 2u2 50V

REC EE

1 0V 0V 0V 0V 6 0.5V 7 8

ERASE & BIAS OSCILLATOR

CTL2 2630

REC*E/E*PLAY

REC 4,2V

9 3.9V

10 0.6V

11 3.8V

to Deck L3

ARH 4E7 7680

GNDAL 1 3

3682 3680

2692 100n 2691 100n

2 GNDTV GNDTV GNDAL GNDAL

7682 BC337-25

11,5V 11,2V

L78M08CV

3604 390k

4EBC337-25 3681

11,5V 4E7

14,8V 13,9V

2693 68p
for EURO-AV Output Select only
Etage de traitement du signal Son Mono / Signal Chassis Standard Sound (AL)

3697 3698

0V 9,2V

390E 3695 2k7

7691 BC847B

9,2V 0,6V

100E 7692 BC847B

1N4148

50V GNDAL

BZX79-C5V6

7696 DTC124EK
3k9 delete for EURO-AV Output Select

220E for Pal-I

7694 DTA124EK

7690 14,6V BC558C

PB-LEVEL

14,6V BC558C

GNDAL GNDAL

47u 16V 3607

10 to TV,CO

+12A +12A

F2 H2 H9 G10 G11 from TV B 16

H11 I10 G12 G13 I12

H12 F15 D13 D12 C12

2618 D15 J8 J8 K5 J3

D11 C11 C11 C8 D4

B5 C3 C3 F3 D7

G11 D15 D16 E15 E15

J3 H8 H7 J7 H5

H9 G10 H11 H11 H10

I11 H13 D7 H13 H13

H7 I7 H4 I4 J4

D13 C13 C13 D12 C12

D6 D5 C4 C3 C8

C4 C7 B8 B8 D14

E16 I11 F16 F14 I11

K5 I4 J6 J7 K8

J6 J6 D12 G3 E4

J5 K7 I5 I3 KJ 2

E10 C4 B6 D6 D8

F16 H7 H6 H6 I5

from DE

22k 470E GNDAL

3655 470E 2655 47n

5650 10000u 2656 33n

0,2V 7,3V
0V 0V 22 0V 21 12V 19 9.1V 18 1.4V 5V 4.3V 4.2V 17

3.8V 3.9V 13

F7 7601

LA7282

GNDAL GNDAL +12A GNDAL

4V 3,4V

7650 BC857B

AEH1 GNDAL +8V