XR-L500/L500V/L500X

SERVICE MANUAL

Ver 1.1 2001.05

AEP Model UK Model

Photo: XR-L500

Model Name Using Similar Mechanism Tape Transport Mechanism Type

XR-4300R MG-25G-136

SPECIFICATIONS

Cassette Player section

Tape track Wow and flutter Frequency response Signal-to-noise ratio 4-track 2-channel stereo 0.08 % (WRMS) 30 18,000 Hz

Cassette type

General
Outputs Audio outputs (Rear) Power aerial relay control lead Power amplifier control lead Telephone ATT control lead Remote controller input connector Aerial input connector Bass 8 dB at 100 Hz Treble 8 dB at 10 kHz 100 Hz +8 dB 10 kHz +2 dB 12 V DC car battery (negative earth) Approx. 176 mm (w/h/d) Approx. 161 mm (w/h/d) Approx. 1.2 kg Parts for installation and connections (1 set) Front panel case (1)

Inputs 61 dB

58 dB Tone controls Loudness Power requirements Dimensions Mounting dimensions Mass Supplied accessories

TYPE II, IV TYPE I

Tuner section
Tuning range Aerial terminal Intermediate frequency Usable sensitivity Selectivity Signal-to-noise ratio 87.5 108.0 MHz External aerial connector 10.7 MHz/450 kHz 8 dBf 75 dB at 400 kHz 66 dB (stereo), 72 dB (mono) Harmonic distortion at 1 kHz 0.6 % (stereo), 0.3 % (mono) Separation 35 dB at 1 kHz Frequency response 30 15,000 Hz
Tuning range Aerial terminal Intermediate frequency Sensitivity MW: 531 1,602 kHz LW: kHz External aerial connector 10.7 MHz/450 kHz MW: 30 V LW: 40 V
Note This unit cannot be connected to a digital preamplifier or an equalizer. Design and specifications are subject to change without notice.

Power amplifier section

Outputs Speaker impedance Maximum power output Speaker outputs (sure seal connectors) ohms 50 W 4 (at 4 ohms)
FM/MW/LW CASSETTE CAR STEREO

9-870-247-12

2001E0500-1 C 2001.5

Sony Corporation

e Vehicle Company Shinagawa Tec Service Manual Production Group
TABLE OF CONTENTS 1. GENERAL
Location of Controls.. 3 Setting the Clock... 4
Notes on chip component replacement Never reuse a disconnected chip component. Notice that the minus side of a tantalum capacitor may be damaged by heat. Flexible Circuit Board Repairing Keep the temperature of the soldering iron around 270 C during repairing. Do not touch the soldering iron on the same conductor of the circuit board (within 3 times). Be careful not to apply force on the conductor when soldering or unsoldering.

2-1. 2-2. 2-3. 2-4.

DISASSEMBLY
Disassembly Flow... Mechanism Deck (MG-25G-136).. MAIN Board.. Heat Sink (ISO2P)... 9 9
3-1. 3-2. 3-3. 3-4. 3-5. 3-6.
ASSEMBLY OF MECHANISM DECK
Housing... Arm (Suction)... Lever (LDG-A)/(LDG-B).. Gear (LDG-FT)... Guide (C)... Mounting Position of Capstan/reel Motor (M901). 12 12
MECHANICAL ADJUSTMENTS.. 13 ELECTRICAL ADJUSTMENTS
Tape Deck Section... 13 Tuner Section... 13

DIAGRAMS

6-1. Note for Printed Wiring Boards and Schematic Diagrams.. 6-2. Printed Wiring Board MAIN Board .. 6-3. Schematic Diagram MAIN Board (1/3) . 6-4. Schematic Diagram MAIN Board (2/3) . 6-5. Schematic Diagram MAIN Board (3/3) . 6-6. Printed Wiring Board SUB Board .. 6-7. Schematic Diagram SUB Board . 6-8. Printed Wiring Board KEY Board (XR-L500/L500X) .. 6-9. Printed Wiring Board KEY Board (XR-L500V) .. 6-10. Schematic Diagram KEY Board .. 6-11. IC Pin Function Description..

EXPLODED VIEWS

7-1. General Section... 29 7-2. Front Panel Section.. 30 7-3. Mechanism Deck Section (MG-25G-136). 31
ELECTRICAL PARTS LIST. 32
XR-L500/L500V/L500X SECTION 1 GENERAL

Location of controls

Refer to the pages listed for details. TAPE : During tape playback RADIO : During radio reception

MENU : During menu mode

This section is extracted from instruction manual.

PR E S E T

E SET PR

MBP EQ 7

SOURCE
(PRESET) (+): to select upwards (SEEK) (): to select leftwards/. (SEEK) (+): to select rightwards/ >

qfqgqhqj

l Number buttons (3) REP 9 RADIO 10, 11, 13, 14
a Volume control dial 13 b MBP button 19 c SOURCE (Power on/Tape/Radio) button 5, 9, 10, 11, 13, 19, 20, 22 d Display window e Z (eject) button (located on the front side of the unit, behind the front panel) 9 f Receptor for the card remote commander g MENU button 8, 9, 10, 14, 15, 18, 19, 20, 22, 23, 24 h OPEN button 7, 9 i PTY/DSPL button 12, 15 j EQ7 button 19 k RESET button (located on the front side of the unit, behind the front panel) 7
(PRESET) (): to select downwards In menu mode, the currently selectable button (s) of these four are indicated with a M in the display.

n o p q r

(3) REP 21 (6) SHUF 21 MODE (o) button 9 TAPE RADIO 10, 11, 13 CD/MD 20, 22 SOUND button 17, 19 AF button 12, 14 TA button 13, 14 OFF (Stop/Power off) button*1 5, 7, 9, 20 ENTER button RADIO 11, 14 MENU 8, 9, 10, 15, 18, 19, 20, 22, 23, 24 CD/MD 22, 23
s PRESET buttons (+/) RADIO 10, 11, 15 MENU 8, 9, 10, 14, 15, 18, 19, 20, 22, 23, 24 CD/MD 20, 22, 23 t SEEK buttons (/+) 9 TAPE RADIO 10, 11, 13 MENU 8, 9, 15, 17, 18, 19, 20, 24 CD/MD 20, 22, 23
*1 Warning when installing in a car without an ACC (accessory) position on the ignition switch After turning off the ignition, be sure to press (OFF) on the unit for 2 seconds to turn off the clock display. Otherwise, the clock display does not turn off and this causes battery drain.

Setting the clock

The clock uses a 24-hour digital indication. Example: To set the clock to 10:08
Press (MENU), then press either side of (DISC/PRESET) or (PRESET) repeatedly until CLOCK appears.
1 Press (ENTER). The hour indication flashes. 2 Press either side of (DISC/PRESET) or (PRESET) to set the hour. 3 Press the (+) side of (SEEK). The minute indication flashes. 4 Press either side of (DISC/PRESET) or (PRESET) to set the minute.

Press (ENTER).

The clock starts. After the clock setting is completed, the display returns to normal play mode.
Tips You can set the clock automatically with the RDS feature (page 15). When D.INFO mode is set to ON, the time is always displayed (page 18).

AUDIO OUT

RCA pin cord (not supplied) Cinchkabel (nicht mitgeliefert) Cordon broche RCA (non fourni) Cavo a piedini RCA (non in dotazione) Tulpstekkersnoer (niet bijgeleverd)
* Note for the aerial connecting
If your car aerial is an ISO (International Organisation for Standardisation) type, use the supplied adaptor 7 to connect it. First connect the car aerial to the supplied adaptor, then connect it to the aerial jack of the master unit. * Hinweis zum Anschlieen der Antenne Wenn Ihre Fahrzeugantenne der ISO-Norm (ISO = International Organization for Standardization - Internationale Normungsgemeinschaft) entspricht, schlieen Sie sie mit Hilfe des mitgelieferten Adapters 7 an. Verbinden Sie zuerst die Fahrzeugantenne mit dem mitgelieferten Adapter, und verbinden Sie diesen dann mit der Antennenbuchse des Hauptgerts. * Remarque sur le raccordement de lantenne Si votre antenne de voiture est de type ISO (organisation internationale de normalisation), utilisez ladaptateur fourni 7 pour la raccorder. Raccordez dabord lantenne de voiture ladaptateur fourni et, ensuite, la prise dantenne de lappareil principal.
* Nota per il collegamento dellantenna
Se la vostra antenna della macchina di tipo ISO (International Organization Standardization), utilizzare ladattatore 7 in dotazione per collegarla. Collegare prima lantenna della macchina alladattatore in dotazione, quindi collegarla alla presa dellantenna dellapparecchio principale. * Opmerking bij de antenne-aansluiting Indien uw wagen is uitgerust met een antenne van het type ISO (International Organisation for Standardization), moet u die aansluiten met behulp van de meegeleverde adaptor 7. Sluit eerst de auto-antenne aan op de meegeleverde adaptor en vervolgens de antennestekker op het hoofdtoestel.

Tape Speed Adjustment

TUNER SECTION
Tuner section adjustments are done automatically in this set.
XR-L500/L500V/L500X SECTION 6 DIAGRAMS
6-1. NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
Note on Schematic Diagram: All capacitors are in F unless otherwise noted. pF: F 50 WV or less are not indicated except for electrolytics and tantalums. All resistors are in and 1/4 W or less unless otherwise specified. C : panel designation. A : B+ Line. Power voltage is dc 14.4V and fed with regulated dc power supply from ACC and BATT cords. Voltages and waveforms are dc with respect to ground under no-signal (detuned) conditions. no mark : FM ( ) : MW/LW : TAPE PLAYBACK : Impossible to measure Voltages are taken with a VOM (Input impedance 10 M). Voltage variations may be noted due to normal production tolerances. Waveforms are taken with a oscilloscope. Voltage variations may be noted due to normal production tolerances. Circled numbers refer to waveforms. Signal path. F : FM f : MW/LW E : TAPE PLAYBACK L : BUS AUDIO IN
Note on Printed Wiring Board: X : parts extracted from the component side. Y : parts extracted from the conductor side. : Pattern from the side which enables seeing. (The other layers' patterns are not indicated.) Caution: Pattern face side: (Conductor Side) Parts face side: (Component Side) Parts on the pattern face side seen from the pattern face are indicated. Parts on the parts face side seen from the parts face are indicated.

Waveforms MAIN Board

1 IC(OSCO) 3 IC501 qh (XOUT)

5 Vp-p

232 ns

30.8 s

KEY Board
2 IC501 qs (OSCOUT) 4 IC900 uf (OSC)

3.3 Vp-p

2.5 Vp-p

54.4 ns

22.4 s
6-2. PRINTED WIRING BOARD MAIN Board

1 A MAIN BOARD

CN781 (FRONT VIEW) CNF781

AUDIO OUT REAR

(REMOTE IN)

FM/AM ANTENNA IN

IC751 13

VIO GRY WHT GRN

REAR RCH+ FRONT RCH+ FRONT LCH+ REAR LCH+

(FM/AM TUNER UNIT)

GRN/BLK WHT/BLK GRY/BLK VIO/BLK BLU BLU/WHT BLU RED
REAR LCH FRONT LCH FRONT RCH REAR RCH TEL ATT AMP REM ANT REM ACC

BLK YEL GND BATT

(SUPPLIED WITH ONLY SOUTH EUROPEAN MODEL)

Semiconductor Location

Ref. No. D1 D51 D55 D90 D91 D92 D351 D352 D502 D552 D553 D591 D592 D601 D610 D611 D614 D622 D701 D702 D703 D704 D705 D706 D707 D708 D709 D710 D711 D712 D721 D722 D723 D724 D731 D732 D733 Location G-5 I-6 K-8 G-3 G-3 J-6 I-13 H-13 G-10 G-13 I-6 F-10 F-10 K-14 F-13 F-12 E-11 E-8 L-4 L-4 L-5 L-5 L-3 L-5 L-3 L-3 L-3 L-5 L-3 L-4 E-10 D-11 E-10 D-9 D-9 E-9 E-9 Ref. No. D734 D781 IC51 IC90 IC301 IC331 IC351 IC501 IC551 IC611 IC751 Q90 Q91 Q171 Q181 Q271 Q281 Q351 Q352 Q353 Q354 Q551 Q571 Q583 Q591 Q592 Q595 Q601 Q602 Q604 Q605 Q621 Q622 Q631 Location E-10 E-12 J-3 F-3 H-5 E-5 J-13 J-7 L-11 G-14 C-8 J-6 G-3 C-5 C-5 C-5 C-5 I-13 J-13 I-12 H-12 I-11 I-11 H-10 F-9 F-9 F-10 K-13 K-13 K-14 K-14 E-8 E-8 J-5

(L500V)

(L500/L500X)
2 (L500/L500X) (L500/L500V) (NOSE DETECT) 3 1

1-680-155-

SUB BOARD

(Page 19)

SCHEMATIC DIAGRAM MAIN Board (1/3)
See page 14 for Waveform.
See page 23 for IC Block Diagrams.

(Page 17)

(Page 18)
SCHEMATIC DIAGRAM MAIN Board (2/3)
See page 14 for Waveforms. See page 23 for IC Block Diagrams.

(Page 16)

6-5. SCHEMATIC DIAGRAM MAIN Board (3/3) See page 23 for IC Block Diagram.
PRINTED WIRING BOARD SUB Board
SCHEMATIC DIAGRAM SUB Board
SUB BOARD (COMPONENT SIDE)

TAPE DECK ILLUMINATION

LED801

K1 S2 K2

Z A1 S1 A2

LSW801

(Page 22)

A1 S1 A2

21 1-676-603(21)
SUB BOARD (CONDUCTOR SIDE)

MAIN BOARD CN701

(Page 15)

(Page 20)

KEY BOARD CN901 (L500V)

KEY BOARD CN901

(Page 21)
6-8. PRINTED WIRING BOARD KEY Board (XR-L500/L500X)
KEY BOARD (COMPONENT SIDE) (L500/L500X) A
LED902.S907 A A MBP 6 REP R940 R965 R941 PRESET + LED900, 901 (KEY ILLUMINATION) LED903, S906 EQ6 SOURCE MODE o AF (L500) 6 LED905, 910 (LCD BACK LIGHT) LIQUID CRYSTAL DISPLAY LED906, 909 (LCD BACK LIGHT) 1 MENU 4. A m SEEK A 1 SOUND 6 TA PRESET OFF 1-680-760(L500) K K > M SEEK+

K K A A

11 (11) 1 (L500)

LED902, 903 A K 5 6

D KEY BOARD (CONDUCTOR SIDE) (L500/L500X)

(L500)

(L500X) 2
ROTARY ENCODER (VOLUME CONTROL)

(L500) (L500)

1-680-76011 (11)
LSW901-906, 909-919 (L500) (L500X) 4 K K 3
LED900, 901, 913, 914 (L500) A K A K (L500X) A A

SUB BOARD CNP801

Ref. No. D902 D903 D904 D906 D908 D971 IC900 IC971 LED900 LED901 Location G-12 G-12 G-11 G-11 G-11 B-11 G-8 B-11 B-2 C-2 Ref. No. LED902 LED903 LED905 LED906 LED909 LED910 LED913 LED914 Q901 Q902 Location B-1 C-1 B-4 B-11 C-11 C-4 C-12 B-13 F-4 F-4
6-9. PRINTED WIRING BOARD KEY Board (XR-L500V)

LED900, 903, LED913, 914

KEY BOARD (COMPONENT SIDE) (L500V) A
LED913,914 (KEY ILLUMINATION) PTY
(LCD BACK LIGHT) LIQUID CRYSTAL DISPLAY (LCD BACK LIGHT)

LED902.S902 MBP

R965 PRESET +

A ENTER

SOURCE LED900, 901 (KEY ILLUMINATION) LED903, S906 EQ7 MODE o

MENU > M SEEK+

LED902, 903 A K 5 4

. m SEEK A SOUND

PRESET

OFF 1-681-484-

11 (11)
KEY BOARD (CONDUCTOR SIDE) (L500V) E

1-681-48411 (11)

Ref. No. D902 D903 D904 D906 D908 D971 IC900 IC971 LED900 Location G-12 G-12 G-11 G-11 G-11 B-11 G-8 B-11 B-2 Ref. No. LED901 LED902 LED903 LED905 LED906 LED913 LED914 Q905 Q906 Location C-2 B-1 C-1 B-4 B-11 C-12 B-13 F-6 G-6

6-10. SCHEMATIC DIAGRAM KEY Board
IC Block Diagrams MAIN Board IC51

SAA6588T-118

SCOUT MPX MAD PSWN

PAUSE DETECTOR

MULTI PATH DETECTOR
POWER SUPPLY & RESET 57kHz 8th ORDER BAND-PASS FILTER SIGNAL QUALITY DECODER 4 CLOCK CLOCK INTERFACE REGISTER DATA DATA

CLOCKED COMPARATOR

RDS/RDBS DEMODULATOR

RDS/RDBS DECODER

TEST CONTROL

OSCILLATOR & CLOCK

IIC BUS SLAVE TRANSCEIVER

LINEOUT2

MRO MPTH

CXA2509AQ-T4

TAPEIN2 PBOUT2 AUXIN2 PBEQ2 MSSW DIREF

21 24dB

120/70 T2 + PBFBPBRINPBREFPBFINF2 TAPE EQ FWD/RVS VCT 35 PBGND 36 VCT + PBFINPBREFPBRINPBFBT1 120/70 1

+ 20 MSMODE NR BIAS

X1 TAPE/AUX

MS MODE

19 DRSW 18 TAPESW 17 INSW 16 NC 14 MSOUT 13 DGND 12 MSTC 11 G1FB

VCC LPF + F3 X1

MS ON/ 15 NC OFF DETECT

24dB 6

PBOUT1

TAPEIN1 AUXIN1

LINEOUT1

TDA7406T

MIXINLF MIXINLR MIXINRR MIXINRF
SPECTRUM ANALYZER SOFT STEP FADER SOFT STEP FADER SOFT STEP FADER SOFT STEP FADER SOFT STEP FADER MONO FADER

21 SACLK

IIC BUS
20 SCL 19 SDA 18 GND 17 ATT
FRONT AC IN OUTPUT SELECTOR MAIN ACOUTR 36

SWIN 34 ACINR 35

SUB WOOFER FILTER 16 QUAL HIGH-CUT QUAL PULSE FORMER
HPF SWACOUT 37 DIGITAL CONTROL ACOUTL 38 S&H

7 BAND EQUALIZER

25kHz LPF

SOFT STEP VOLUME

DEMODULATOR +STEREO ADJUST +STEREO BLEND

MULTIPATH DETECTOR

15 MPOUT 14 MPIN
SOFT MUTE CREF 39 LOUDNESS
D/A CONVERTER PILOT CANCELLATION PILOT DET PLL

13 LEVEL

IN-GAIN +AUTO ZERO BEEP 80kHz LPF

FM/AM NOISE BLANKER

MAIN SOURCE SELECTOR CDL 40 CDR 41 MDL 42 MDR 43 CD INPUT MULTIPLEXER

MIXING SELECTOR

FM PHONE NAVI TIM AM

STD IN GAIN

12 MPX1 TAPEL TAPER 2 PDR+ 3 PD 4 PDL+ 5 PAUSE 6 PHONE 7 TIM 8 NAVI PAUSE

9 AM/MPX2

10 AM IF

11 CMPX

LB1930M-TLM

VCC 1 NC 2 ININ2 4

10 NC BUFFER CONTROL CIRCUIT BUFFER MOTOR DRIVE CIRCUIT 9 OUTNC 7 OUTP-GND

S-GND 5

BA4908-V3

REGULATOR

OVER VOLTAGE PROTECT + + 10 + 9 + 3 4

TUNER8.7 ANT SW TUNER5.6 SW STB

VDD5.6V

COM8.7V

TUNER5.6V

TUNER8.7V
IC PIN FUNCTION DESCRIPTION
Pin Name VREF VSM NIL KEYIN1 I/O I I I I Description Reference voltage (0V) input terminal (for A/D converter) FM and AM signal meter voltage detection signal input from the FM/AM tuner unit (TU1) (A/D input) Not used (fixed at L) Key input terminal (A/D input) LSW902, LSW905, LSW906, LSW909 to LSW911, S902 to S905 (MENU, SOUND, ENTER, PTY, LIST, AF, TA, > M SEEK+,. m SEEK, PRESET+, PRESET keys input) Key input terminal (A/D input) LSW901, LSW903, LSW904, LSW914 to LSW919, S906, S907 (OFF, SOURCE, MODE o, SHUF 6, 5, 4, 3 REP, 2, 1 keys input) Rotary remote commander key input terminal (A/D input) Noise level detection signal input at SEEK mode (A/D input) Multi-path detection signal input from the RDS decoder (IC51) (A/D input) Destination setting terminal L: XR-L500X, center voltage: XR-L500, H: XR-L500V Reference voltage (+5V) input terminal (for A/D converter) Power supply terminal (+5V) Main system clock output terminal (18.432 MHz) Main system clock input terminal (18.432 MHz) Ground terminal Sub system clock input terminal (32.768 kHz) Sub system clock output terminal (32.768 kHz) Selection signal of memory mode input terminal L: single chip mode (fixed at L) Serial data output to the liquid crystal display driver (IC900) Chip enable signal output to the liquid crystal display driver (IC900) H active Serial data transfer clock signal output to the liquid crystal display driver (IC900) Not used (open) SIRCS reset signal output terminal Not used (open) Destination setting terminal H: L-cube model Fixed at L in this set Reset signal output to the SONY bus interface L: reset Not used (pull up) Bus on/off control signal output to the SONY bus interface L: bus on Not used (pull up) Input of acknowledge signal for the key entry Acknowledge signal is input to accept function and eject keys in the power off status On at input of H Synchronized detection signal of RDS data block input from the RDS decoder (IC51) H active Battery detection signal input terminal L is input at low voltage SIRCS remote control signal input from the remote control receiver (IC971) Not used (fixed at L) Not used (fixed at H) System reset signal input from the reset signal generator (IC551) and reset switch (S551) L: reset L is input for several 100 msec after power on, then it changes to H Tuner system power supply on/off control signal output H: tuner power on Beep sound drive signal output to the power amplifier (IC751) Main system power supply on/off control signal output H: power on Not used (open) Accessory detection signal input L: accessory on Not used (open) Telephone attenuate signal input At input of H, the signal is attenuated by 20 dB
MAIN BOARD IC501 MN101C49KTF (SYSTEM CONTROLLER) Pin No. 3 4

29 30, 39 40

KEYIN0 RCIN0 QUALITY MPTH DSTSEL VREF+ VDD OSCOUT OSCIN VSS XI XO MMOD LCDSO LCDCE LCDCKO NCO SIRCS_RESET LCUBE_SEL SYSRST BUSON KEYACK DAVN BUIN SIRCS NIL NIH RESET TUNON BEEP PW_ON NCO ACCIN NCO TELATT
I I I I I I O I I O I O O O O O I O O I I I I I I I O O O I I O I

Pin No. 53

Pin Name NIH BUSSO BUSSI BUSCKO IIC SIO NCO IIC CKO AMPON AMPATT ATT NCO AMSON F/ROUT
I/O I O I O I/O O O O O O O O O Not used (fixed at H)
Description Serial data output to the SONY bus interface Not used (open) Serial data input from the SONY bus interface Not used (fixed at L) Serial data transfer clock signal output to the SONY bus interface Not used (open) Two-way data IIC bus with the FM/AM tuner unit (TU1), RDS decoder (IC51) and electrical volume (IC331) Not used (open) IIC bus clock signal output to the FM/AM tuner unit (TU1), RDS decoder (IC51) and electrical volume (IC331) Standby on/off control signal output to the power amplifier (IC751) L: standby mode, H: amplifier on Muting on/off control signal output to the power amplifier (IC751) L: muting on Audio line muting on/off control signal output H: muting on Not used (open) Tape auto music sensor control signal output to the CXA2509AQ (IC301) L: auto music sensor on Forward/reverse control signal output to the CXA2509AQ (IC301) L: reverse direction, H: forward direction METAL control in/out terminal At initial mode: valid/invalid selection input of METAL function (valid at L input) At normal mode: METAL on/off control signal output to the CXA2509AQ (IC301) (METAL on at H output) Tape muting on/off control signal output to the CXA2509AQ (IC301) H: muting on Active at ATA, FF/REW mode Dolby control in/out terminal Not used (pull down) Whether a music is present or not from CXA2509AQ (IC301) is detected at auto music sensor L: music is present, H: music is not present 4V PREOUT setting terminal L: 4V PREOUT on Fixed at H in this set Pre amplifier muting on/off control signal output to the electrical volume (IC331) L: muting on Not used (open) Internal flash memory data write mode detection signal input terminal L: data write mode Not used (open) Setting terminal for the test mode L: test mode, normally fixed at H Rotary remote commander shift key input terminal L: shift key on Not used (open) Two-way data bus for tuner EEPROM with the FM/AM tuner unit (TU1) Two-way bus clock signal for tuner EEPROM with the FM/AM tuner unit (TU1) Setting terminal for the illumination color L: amber, H: green Fixed at L in this set Not used (open) Front panel open/close detection signal input L is input when the front panel is closed LED drive signal output of the MD disc slot illumination and Z indicator (LED810, LSW810) H: LED on H is output to turn on the LED when front panel is opened Dial pulse input of the rotary encoder (RE901) (for VOLUME control) A/D converter power control signal output terminal When the KEYACK (pin wh) that controls reference voltage power for key A/D conversion input is active, L is output from this terminal to enable the input

to 68 to 79 80, 81 82

TAPATT NCO AMSIN 4VPRE VOLATT NCO FL_W TESTIN RCIN1 NCO EEP SIO EEP CKO COLSEL NCO DOORSW DOORIND RE_IN1, RE_IN0 AD ON
O O I I O O I I I O I/O I/O I O I O I O

Pin No. to 99 100

Pin Name ILLON REL POS3 POS2 POS0 POS1 LMLOD LMEJ TAPEON CMON NOSESW NS_MASK DAVSS NCO DAVCC
I/O O I I I I I O O O O I O O
Description Power on/off control signal output of the illumination LED and liquid crystal display driver (IC900) H: power on Rotation detection signal input from supply reel sensor and take-up reel sensor on the mechanism deck POS3: L: REV and EJECT mode, H: others mode Tape position (EJECT/FF/REW/REV/ POS2: L: REW mode, H: others mode FWD mode) detect input from the tape POS0: L: EJECT mode, H: others mode operation switch on the deck mechanism POS1: L: PLAY and FF in FWD mode, and REW in REV mode, H: others mode Motor drive signal output to the loading motor drive (IC351) H active (For the loading direction and forward side operation) *1 Motor drive signal output to the loading motor drive (IC351) H active (For the eject direction and reverse side operation) *1 Power on/off control signal output of the loading motor drive (IC351) and capstan/reel motor (M901) H: motor on Capstan/reel motor (M901) drive signal output terminal H: motor on Front panel block remove/attach detection signal input from the nose detection switch (S552) L: front panel is attached, H: front panel is removed Discharge control signal output for the noise detection circuit H: discharge Ground terminal (for D/A converter) Not used (open) Power supply terminal (+5V) (for D/A converter)
*1 Loading motor control Mode Terminal LMLOD (pin il ) LMEJ (pin o; ) STOP L L LOADING/ FORWARD H L EJECT/ REVERSE L H BRAKE H H
XR-L500/L500V/L500X SECTION 7 EXPLODED VIEWS
NOTE: -XX and -X mean standardized parts, so they may have some difference from the original one. Color Indication of Appearance Parts Example: KNOB, BALANCE (WHITE). (RED) Parts Color Cabinet's Color Items marked * are not stocked since they are seldom required for routine service. Some delay should be anticipated when ordering these items. The mechanical parts with no reference number in the exploded views are not supplied. Hardware (# mark) list and accessories and packing materials are given in the last of the electrical parts list.

7-1. GENERAL SECTION

1-107-826-11 CERAMIC CHIP < CONNECTOR >
1-794-065-22 PLUG, CONNECTOR 14P < DIODE >
D902 D903 D904 D906 D908 D908 D971
8-719-056-82 8-719-056-82 8-719-056-82 8-719-056-93 8-719-158-15
DIODE DIODE DIODE DIODE DIODE
UDZ-TE-17-6.2B UDZ-TE-17-6.2B UDZ-TE-17-6.2B UDZ-TE-17-18B UDZ-TE-17-5.6B (L500V)
8-719-976-99 DIODE UDZ-TE-17-5.1B (L500/L500X) 8-719-056-82 DIODE UDZ-TE-17-6.2B < IC >

IC900 IC971

8-759-826-21 IC LC75874W 8-749-012-25 IC RS-170-TU < LIQUID CRYSTAL DISPLAY >
LCD901 1-804-292-21 DISPLAY PANEL, LIQUID CRYSTAL (L500) LCD901 1-804-292-41 DISPLAY PANEL, LIQUID CRYSTAL (L500X) LCD901 1-804-293-11 DISPLAY PANEL, LIQUID CRYSTAL (L500V)
Ref. No. Part No. Description Remark Ref. No. R914 R915 R916 R917 R918 R919 R920 R921 R922 R923 R924 R925 R926 R928 R928 R929 R930 R930 Part No. Description 1K 1.5K 1.5K 2.2K 3.3K 4.7K 5% 5% 5% 5% 5% 5% 5% 5% Remark 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/10W 1/16W LSW904 1-771-476-11 SWITCH, KEY BOARD (WITH LED) (MODE o) (L500V/L500X) LSW904 1-786-112-11 SWITCH, KEY BOARD (WITH LED) (MODE o) (L500) LSW905 1-771-476-11 SWITCH, KEY BOARD (WITH LED) (SOUND) (L500V/L500X) LSW905 1-786-112-11 SWITCH, KEY BOARD (WITH LED) (SOUND) (L500) LSW906 1-771-476-11 SWITCH, KEY BOARD (WITH LED) (ENTER) (L500V/L500X) LSW906 1-786-112-11 SWITCH, KEY BOARD (WITH LED) (ENTER) (L500) LSW909 1-771-476-11 SWITCH, KEY BOARD (WITH LED) (PTY) (L500V/L500X) LSW909 1-786-112-11 SWITCH, KEY BOARD (WITH LED) (PTY) (L500) LSW910 1-771-476-11 SWITCH, KEY BOARD (WITH LED) (AF) (L500V/L500X) LSW910 1-786-112-11 SWITCH, KEY BOARD (WITH LED) (AF) (L500) LSW911 1-771-476-11 SWITCH, KEY BOARD (WITH LED) (TA) (L500V/L500X) LSW911 1-786-112-11 SWITCH, KEY BOARD (WITH LED) (TA) (L500) LSW914 1-771-476-11 SWITCH, KEY BOARD (WITH LED) (6) (L500V/L500X) LSW914 1-786-112-11 SWITCH, KEY BOARD (WITH LED) (6) (L500) LSW915 1-771-476-11 SWITCH, KEY BOARD (WITH LED) (5) (L500V/L500X) LSW915 1-786-112-11 SWITCH, KEY BOARD (WITH LED) (5) (L500) LSW916 1-771-476-11 SWITCH, KEY BOARD (WITH LED) (4) (L500V/L500X) LSW916 1-786-112-11 SWITCH, KEY BOARD (WITH LED) (4) (L500) LSW917 1-771-476-11 SWITCH, KEY BOARD (WITH LED) (3, REP) (L500V/L500X) LSW917 1-786-112-11 SWITCH, KEY BOARD (WITH LED) (3, REP) (L500) LSW918 1-771-476-11 SWITCH, KEY BOARD (WITH LED) (2) (L500V/L500X) LSW918 1-786-112-11 SWITCH, KEY BOARD (WITH LED) (2) (L500) LSW919 1-771-476-11 SWITCH, KEY BOARD (WITH LED) (1) (L500V/L500X) LSW919 1-786-112-11 SWITCH, KEY BOARD (WITH LED) (1) (L500) < TRANSISTOR > Q901 Q902 Q905 Q906 8-729-904-75 8-729-904-75 8-729-904-75 8-729-904-75 TRANSISTOR TRANSISTOR TRANSISTOR TRANSISTOR < RESISTOR > R902 R903 R904 R905 R906 R907 R908 R909 R910 R911 R912 R913 1-216-819-11 1-216-819-11 1-216-819-11 1-216-821-11 1-216-823-11 1-216-823-11 1-216-825-11 1-216-827-11 1-216-864-11 1-216-829-11 METAL CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP SHORT METAL CHIP 680 1K 1.5K 1.5K 2.2K 3.3K 0 4.7K 6.8K 10K 5% 5% 5% 5% 5% 5% 5% 5% 5% 5% 5% 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W R950 1-216-831-11 METAL CHIP 1-216-833-11 METAL CHIP 1/16W 1/16W R952 1-216-029-00 METAL CHIP 1-216-864-11 SHORT 150 1/10W (L500/L500X) 0 (L500/L500X) 5% DTD114EK-T-146 (L500) DTD114EK-T-146 (L500) DTD114EK-T-146 (L500V) DTD114EK-T-146 (L500V) R940 R941 R942 R943 R944 R945 R946 R946 R948 R948 1-216-810-11 METAL CHIP 1-216-810-11 METAL CHIP 1-216-037-00 METAL CHIP 1-216-031-00 METAL CHIP 1-216-029-00 METAL CHIP 1-216-029-00 METAL CHIP 1-216-029-00 METAL CHIP 1-216-031-00 METAL CHIP 1-216-023-00 METAL CHIP 1-216-029-00 METAL CHIP 1-216-819-11 METAL CHIP 1-216-819-11 METAL CHIP 1-216-821-11 METAL CHIP 1-216-823-11 1-216-823-11 1-216-825-11 1-216-827-11 1-216-829-11 1-216-831-11 1-216-833-11 1-216-037-00 1-216-864-11 1-216-819-11 METAL CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP SHORT METAL CHIP

6.8K 5% 10K 5% 330 5% 0 (L500V/L500X) 680 5% 150 5%
1-216-025-11 RES-CHIP 1-216-029-00 METAL CHIP 1-216-025-11 RES-CHIP 1-216-025-11 RES-CHIP 1-216-029-00 METAL CHIP
1/10W (L500) 5% 1/10W (L500V/L500X) 5% 1/10W (L500) 5% 1/10W (L500) 5% 1/10W (L500V/L500X) 1/10W (L500) 5% 1/10W (L500) 5% 1/10W (L500V/L500X) 5% 1/10W (L500) 5% 1/10W (L500) 5% 1/10W (L500V/L500X) 5% 1/10W (L500) 5% 1/10W 5% 1/10W (L500) 5% 1/16W (L500V/L500X) 5% 5% 5% 5% 5% 5% 5% 1/16W (L500) 1/16W (L500) 1/10W 1/10W 1/10W 5%

R931 R932 R932 R933 R934

1-216-025-11 RES-CHIP 1-216-025-11 RES-CHIP 1-216-029-00 METAL CHIP 1-216-025-11 RES-CHIP 1-216-025-11 RES-CHIP

R934 R935 R936 R937 R940

1-216-029-00 METAL CHIP 1-216-025-11 RES-CHIP 1-216-031-00 METAL CHIP 1-216-031-00 METAL CHIP 1-216-809-11 METAL CHIP
1/10W 1/10W (L500) 5% 1/10W (L500V/L500X) 5% 1/10W (L500V) 5% 1/10W (L500/L500X)
Ref. No. R953 R954 R955 R956 R957 R958 R959 R960 R961 R962 R963 R964 R964
Part No. Description 47K 1M 4.7K 4.7K 4.7K 5% 5% 5% 5% 5% 5% 5% 5% Remark 1/10W (L500V) 1/16W 1/16W 1/16W 1/16W 1/10W 1/10W 1/16W Ref. No. Part No. Description Remark 1-216-025-00 METAL CHIP 1-216-809-11 METAL CHIP 1-216-809-11 METAL CHIP 1-216-809-11 1-216-841-11 1-216-031-00 1-216-031-00 1-216-857-11 1-216-829-11 1-216-829-11 1-216-829-11 1-216-809-11 METAL CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP S907 1-786-175-21 SWITCH, TACT (WITH LED) (MBP) ************************************************************** * * * A-3326-808-A MAIN BOARD, COMPLETE (L500) A-3326-813-A MAIN BOARD, COMPLETE (L500X) A-3326-832-A MAIN BOARD, COMPLETE (L500V) ********************** 3-040-998-01 3-041-014-01 3-041-262-01 7-685-647-79 7-685-793-09 BRACKET (IC) HEAT SINK (IS02P) HEAT SINK (REG/XR) SCREW +BVTP 3X10 TYPE2 N-S SCREW +PTT 2.6X8 (S)

1-216-810-11 METAL CHIP

5% 1/16W 5% 1/16W 5% 1/16W 5% 1/16W (L500V/L500X) 5% 1/16W (L500) 5% 5% 5% 5% 5% 1/16W (L500) 1/10W (L500) 1/10W (L500) 1/10W (L500) 1/10W (L500V) C1 C2 C3 C4 C5 C6 C7 C13 C14 C22 C23 C24 C52 C53 C54 C55 C57 C58 C59 C60 C61 C62 C63 C64 C90 C92 C93 C94 C95 C96 C97 C98 C99 C101 C102 C103 C104 C105 C106 C171 C174 C175 C181
7-685-795-09 SCREW +PTT 2.6X12 (S) < CAPACITOR > 1-163-233-11 1-164-004-11 1-104-664-11 1-163-017-00 1-164-004-11 1-124-589-11 1-107-823-11 1-109-982-11 1-109-982-11 1-163-017-00 1-163-037-11 1-163-809-11 1-164-004-11 1-163-227-11 1-163-235-11 1-124-589-11 1-164-004-11 1-163-263-11 1-164-505-11 1-163-135-00 1-164-161-11 1-163-009-11 1-163-133-00 1-164-004-11 1-163-009-11 1-163-009-11 1-163-133-00 1-163-227-11 1-107-823-11 1-163-809-11 1-164-004-11 1-164-004-11 1-163-009-11 1-163-263-11 1-163-263-11 1-163-021-11 1-164-489-11 1-164-004-11 1-126-160-11 1-124-233-11 CERAMIC CHIP CERAMIC CHIP ELECT CERAMIC CHIP CERAMIC CHIP ELECT CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP ELECT CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP ELECT ELECT 18PF 0.1uF 47uF 0.0047uF 0.1uF 47uF 0.47uF 1uF 1uF 0.0047uF 0.022uF 0.047uF 0.1uF 10PF 22PF 47uF 0.1uF 330PF 2.2uF 560PF 0.0022uF 0.001uF 470PF 0.1uF 0.001uF 0.001uF 470PF 10PF 0.47uF 0.047uF 0.1uF 0.1uF 0.001uF 330PF 330PF 0.01uF 0.22uF 0.1uF 1uF 10uF 0.47uF 0.001uF 10uF 5% 10% 20% 5% 10% 20% 10% 10% 10% 10% 10% 10% 10% 0.5PF 5% 20% 10% 5% 5% 10% 10% 5% 10% 10% 10% 5% 0.5PF 10% 10% 10% 10% 10% 5% 5% 10% 10% 10% 20% 20% 10% 10% 20% 50V 25V 16V 50V 25V 16V 16V 10V 10V 50V 25V 25V 25V 50V 50V 16V 25V 50V 16V 50V 100V 50V 50V 25V 50V 50V 50V 50V 16V 25V 25V 25V 50V 50V 50V 50V 16V 25V 50V 16V 16V 50V 16V

1-216-097-11 RES-CHIP 1-216-089-11 RES-CHIP 1-216-097-11 RES-CHIP

1-247-807-31 CARBON

Ref. No. R579 R586 R587 R588 R589 R591 R592 R594 R595 R600 R603 R604
Part No. Description 100K 10K 10K 1K 47K 1K 1K 100K 47K 330 2.2K 10K 5% Remark 1/10W (L500/L500V) 5% 1/10W 5% 5% 5% 5% 5% 5% 5% 5% 1/10W 1/10W 1/10W 1/10W 1/10W Ref. No. * Part No. Description Remark 1-216-097-11 RES-CHIP 1-216-073-00 METAL CHIP 1-216-073-00 1-216-049-11 1-216-089-11 1-216-049-11 1-216-049-11 METAL CHIP RES-CHIP RES-CHIP RES-CHIP RES-CHIP 1-676-603-21 SUB BOARD ********** 1-792-195-11 CABLE, FLEXIBLE FLAT (14 CORE) < CONNECTOR > CNP801 1-794-064-12 SOCKET, CONNECTOR 14P < LED > 1-216-097-11 RES-CHIP 1-216-089-11 RES-CHIP 1-216-037-00 METAL CHIP 1-216-057-00 METAL CHIP 1-216-073-00 METAL CHIP 1/10W 1/10W 1/10W (L500V) 5% 1/10W (L500/L500X) 5% 1/10W (L500/L500X) 1/4W (L500/L500X) 5% 1/4W (L500/L500X) 5% 1/4W (L500/L500X) 5% 1/4W (L500V) 5% 1/4W (L500/L500X) 5% 5% 5% 5% 5% 5% 5% 5% 5% 5% 5% 5% 5% 5% 5% 5% 1/10W 1/10W 1/10W 1/10W 1/10W 1/10W 1/10W 1/10W 1/10W 1/4W 1/4W 1/8W 1/8W 1/8W 1/8W 1/4W 5% LED801 8-719-038-05 LED CL-190FG-CD-T (TAPE DECK ILLUMINATION) (L500) LED801 8-719-061-16 LED CL-190SR-CD-T (TAPE DECK ILLUMINATION) (L500V/L500X) < SWITCH > LSW801 1-771-883-11 SWITCH, TACTILE (WITH LED) (Z) (L500V/L500X) LSW801 1-786-113-11 SWITCH, TACT (WITH LED) (Z) (L500) *********************************************************** MISCELLANEOUS ************** F781 1-792-195-11 CABLE, FLEXIBLE FLAT (14 CORE) 1-782-381-11 CORD (WITH CONNECTOR) (ISO P&S) (POWER) (South European) 1-777-989-41 CORD (WITH CONNECTOR) (AMP REM/ATT) 1-694-780-11 CONDUCTIVE BOARD, CONNECTION 1-532-877-11 FUSE (BLADE TYPE) (AUTO FUSE) (10A)

R606 R607 R608 R609 R609

1-249-400-11 CARBON 1-249-400-11 CARBON 1-249-400-11 CARBON 1-249-389-11 CARBON 1-249-400-11 CARBON

39 4.7 39

R625 R631 R632 R633 R634 R635 R636 R701 R702 R751 R753 R756 R757 R758 R760 R901
1-216-017-00 1-216-033-00 1-216-033-00 1-216-033-00 1-216-033-00 1-216-033-00 1-216-033-00 1-216-025-11 1-216-025-11 1-249-417-11 1-249-429-11 1-216-198-00 1-216-198-00 1-216-198-00 1-216-198-00
RES-CHIP RES-CHIP RES-CHIP RES-CHIP RES-CHIP RES-CHIP RES-CHIP RES-CHIP RES-CHIP CARBON CARBON RES-CHIP RES-CHIP RES-CHIP RES-CHIP
100 1K 10K 1K 1K 1K 1K 1K
HP901 1-500-196-21 HEAD, MAGNETIC (PLAYBACK) LCD901 1-804-292-21 DISPLAY PANEL, LIQUID CRYSTAL (L500) LCD901 1-804-292-41 DISPLAY PANEL, LIQUID CRYSTAL (L500X) LCD901 1-804-293-11 DISPLAY PANEL, LIQUID CRYSTAL (L500V) M901 A-3291-665-A MOTOR ASSY, MAIN (CAPSTAN/REEL) ************************************************************ ************** HARDWARE LIST ************** #1 #2 #3 #4 #5 7-685-793-09 7-621-772-20 7-685-792-09 7-627-553-28 7-685-647-79 SCREW +PTT 2.6X8 (S) SCREW +B 2X5 SCREW +PTT 2.6X6 (S) SCREW, PRECISION +P 2X2.5 SCREW +BVTP 3X10 TYPE2 N-S

1-249-417-11 CARBON < SWITCH >

S551 S552

1-692-431-21 SWITCH, TACTILE (RESET) 1-771-540-11 SWITCH, PUSH (NOSE DETECT) (1 KEY) < TUNER UNIT >
#6 7-624-104-04 STOP RING 2.0, TYPE -E #7 7-627-553-17 PRECISION SCREW +P 2X2 TYPE 3 #8 7-685-106-19 SCREW +P 2X10 TYPE2 NON-SLIT #9 7-685-795-09 SCREW +PTT 2.6X12 (S) ************************************************************ ACCESSORIES & PACKING MATERIALS ******************************** 3-227-102-11 MANUAL, INSTRUCTION (ENGLISH, GERMAN, FRENCH, ITALIAN, DUTCH) 3-227-102-21 MANUAL, INSTRUCTION (ENGLISH, SPANISH, SWEDISH, PORTUGUESE, GREEK, RUSSIAN) 3-227-102-31 MANUAL, INSTRUCTION (ENGLISH, CZECH, POLISH, TURKISH, RUSSIAN) (L500/L500X) 3-227-103-11 MANUAL, INSTRUCTION, INSTALL (ENGLISH, GERMAN, FRENCH, ITALIAN, DUTCH)
A-3282-061-A TUNER UNIT (TUX-020) < VIBRATOR >
X51 1-579-242-41 VIBRATOR, CRYSTAL (4.332MHz) X501 1-781-294-21 VIBRATOR, CRYSTAL (18.432MHz) X502 1-567-098-41 VIBRATOR, CRYSTAL (32.768kHz) **************************************************************
3-227-103-21 MANUAL, INSTRUCTION, INSTALL (ENGLISH, SPANISH, SWEDISH, PORTUGUESE, GREEK, RUSSIAN) 3-227-103-31 MANUAL, INSTRUCTION, INSTALL (ENGLISH, CZECH, POLISH, TURKISH, RUSSIAN) (L500/L500X) X-3378-490-1 CASE (PANEL) ASSY (for FRONT PANEL) *********************************************************** PARTS FOR INSTALLATION AND CONNECTIONS ************************************** X-3373-602-1 X-3366-405-1 3-040-979-01 3-934-325-01 3-233-644-01 FRAME ASSY SCREW ASSY (EXP), FITTING COLLAR SCREW, +K (5X8) TAPPING SPRING, FITTING
1-465-459-21 ADAPTER, ANTENNA 1-782-381-11 CORD (WITH CONNECTOR) (ISO P&S) (POWER) (South European) 1-777-989-41 CORD (WITH CONNECTOR) (AMP REM/ATT)

FRAME ASSY 1

SCREW, FITTING 1

BUSHING 1

SCREW ASSY (EXP), FITTING

COLLAR 1

+K 5X8 2

SPRING, FITTING 2

ADAPTER, ANTENNA 1

POWER CORD 1

AMP REM/ATT CORD 1

REVISION HISTORY

Clicking the version allows you to jump to the revised page. Also, clicking the version at the upper right on the revised page allows you to jump to the next revised page. Ver. 1.1 1.0 Date 2001.05 2001.02 Description of Revision Change of Part No. for SPRING, FITTING New

XR-4950X

SERVICE MANUAL

Ver 1.0 2001.04

AEP Model

Model Name Using Similar Mechanism Tape Transport Mechanism Type

NEW MG-25F-136

SPECIFICATIONS

Cassette player section

Tape track Wow and flutter Frequency response Signal-to-noise ratio 4-track 2-channel stereo 0.08 % (WRMS) 30 18,000 Hz 58 dB

General

Outputs Audio output Power aerial relay control lead Power amplifier control lead Telephone ATT control lead Bass 9 dB at 100 Hz Treble 9 dB at 10 kHz 12 V DC car battery (negative earth) Approx. 183 mm (w/h/d) Approx. 162 mm (w/h/d) Approx. 1.2 kg Parts for installation and connections (1 set) Front panel case (1)

Tuner section

Tuning range Aerial terminal Intermediate frequency Usable sensitivity Selectivity Signal-to-noise ratio 87.5 108.0 MHz External aerial connector 10.7 MHz/450kHz 8 dBf 75 dB at 400 kHz 66 dB (stereo), 72 dB (mono) Harmonic distortion at 1 kHz 0.6 % (stereo), 0.3 % (mono) Separation 35 dB at 1 kHz Frequency response 30 15,000 Hz
Tone controls Power requirements Dimensions Mounting dimensions Mass Supplied accessories
Tuning range Aerial terminal Intermediate frequency Sensitivity 531 1,602 kHz External aerial connector 10.7 MHz/450 kHz 30 V
Design and specifications are subject to change without notice.

Power amplifier section

Outputs Speaker outputs (sure seal connectors) Speaker impedance ohms Maximum power output 50 W 4 (at 4 ohms)
FM/AM CASSETTE CAR STEREO

9-873-510-11

2001D0500-1 C 2001.4

Sony Corporation

e Vehicle Company Shinagawa Tec Service Manual Production Group
SCHEMATIC DIAGRAM MAIN Board (1/2)
See page 15 for Waveforms.
See page 21 for IC Block Diagrams.

(Page 19)

SCHEMATIC DIAGRAM MAIN Board (2/2)

(Page 18)

(Page 20)
6-5. PRINTED WIRING BOARD SUB Board 6-6. SCHEMATIC DIAGRAM SUB Board

LED801

K1 S2 K2

LSW801

A1 S1 A2

(Page 23)

(Page 17)

(Page 22)

IC Block Diagrams MAIN Board IC331 TDA7402TR
OUTSWR OUTSWL OUTSSL OUTSSR ACINLR ACINRF ACINRR OUTRR OUTLR OUTRF OUTLF

CXA2509AQ-T4

LINEOUT2 TAPEIN2

LB1930M-TLM

PBOUT2

AUXIN2

29 MIXER

VCC 1 NC 2 ININ2 4

10 NC BUFFER CONTROL CIRCUIT BUFFER MOTOR DRIVE CIRCUIT 9 OUTNC 7 OUTP-GND

21 24dB

120/70
MONO- MONOFADER FADER ACINLF 34 SWINR 35 SWINL 36 ACOUTR 37 ACOUTL 38 CREF 39 FRONT ACIN OUTPUT SELECTOR MAIN SECOND REAR SW MONO- MONOFADER FADER MONO- MONOFADER FADER

+ 20 MSMODE NR BIAS

S-GND 5

MS MODE

SUBWOOFER +PHASE CONTROL

PBFBPBRINPBREFPBFINF2

X1 TAPE/AUX TAPE EQ FWD/RVS
19 DRSW 18 TAPESW 17 INSW 16 NC

VCT 35 PBGND 36

LP VOICE BANDPASS HP 22 VDD

IIC-BUS

VCT + LPF

VCC + F3 X1

MS ON/ 15 NC OFF DETECT 14 MSOUT

21 SCL 20 SDA

PBFINPBREFPBRINPBFBT1 + F1

13 DGND

BASS SUPPLY TREBLE

DIGITAL CONTROL

12 MSTC + 120/70 24dB 6

19 GND 18 SM

11 G1FB

HIGH-CUT

VOLUME

S&H

PULSE FORMER QUAL 17 QUAL

PBOUT1

TAPEIN1 AUXIN1

LINEOUT1

SOFTMUTE COMPANDER LOUDNESS LOUDNESS

25kHz LP

MUX 40

IN-GAIN +AUTO ZERO

IN-GAIN BEEP MUTE
DEMODULATOR +STEREO ADJUST +STEREO BLAND

MULTIPATH DETECTOR

16 MPOUT 15 MPIN
PILOT CANCELATION PIL DET

D/A CONVERTER

14 LEVEL

BA4908-V3

MAIN SOURCE SELECTOR MDMD1G 42 MDMD2G 44 MAIN

MIXING SELECTOR

SECOND SOURCE SELECTOR PLL 80kHz LP
INPUT MULTIPLEXER PHONO MAIN 1 2

SEL SER

13 MPX

REGULATOR

FM AUX AM 11

FD1L+ FD1L FD1R+ FD1R

AM/FM NOISE BLANKER

12 AMIF

FD2L+ FD2L FD2R+ FD2R
OVER VOLTAGE PROTECT + 11

TUNER8.7V

TUNER8.7 ANT SW TUNER5.6 SW STB

VDD5.6V

COM8.7V

TUNER5.6V

SCHEMATIC DIAGRAM KEY Board
See page 15 for Waveform.
6-9. IC PIN FUNCTION DESCRIPTION
MAIN BOARD IC501 MN101C49KTA2 (SYSTEM CONTROLLER) Pin No. Pin Name VREF VSM FMAGC KEYIN1 I/O I I I I Description Reference voltage (0V) input terminal (for A/D converter) FM and AM signal meter voltage detection input from the FM/AM tuner unit (TU1) (A/D input) FM AGC level detection signal input from the FM/AM tuner unit (TU1) (A/D input) Key input terminal (A/D input) (LSW801, LSW909, LSW912 to LSW917) Z, D-BASS, 6, 5, 4, 3, 2, REP 1 keys input Key input terminal (A/D input) (LSW901 to LSW907, S901 to S904) OFF, SOURCE, SOUND, MENU, MODE o, ENTER, SEEK/AMS . m,PRST +, SEEK/AMS + > M, PRST keys input Destination setting terminal (fixed at H in this set) Rotary remote commander key input terminal (A/D input) Noise level detection signal input at SEEK mode (A/D input) Not used (open) Reference voltage (+5V) input terminal (for A/D converter) Power supply terminal (+5V) (for A/D converter) Main system clock output terminal (18.432 MHz) Main system clock input terminal (18.432 MHz) Ground terminal (for A/D converter) Sub system clock input terminal (32.768 kHz) Sub system clock output terminal (32.768 kHz) Not used (fixed at L) Front panel block remove/attach detection signal input L: front panel is attached, H: front panel is removed Bus on/off control signal output terminal Reset signal output terminal L: reset L: bus on Not used (fixed at H) 55 H active 56 DOLON I/O TAPATT O Not used (fixed at H) 54 MTLON I/O 53 NROUT O 52 AMSON O 51 AMPATT ATT TU ATT O O O Not used (open) Pin No. 48 Pin Name ACC IN TESTIN TELATT UNICLI UNISO UNISI UNICKO I2C SIO VOLATT I2C CKO AMPON I/O I I I I O I O I/O O O O Description Accessory detection signal input L: accessory on Setting terminal for the test mode H: test mode, Normally: fixed at L Telephone muting signal input terminal At input of H, the signal is attenuated by 20 dB Serial data transfer clock signal input terminal Not used (fixed at L) Serial data output terminal Not used (fixed at L) Serial data input terminal Not used (fixed at L) Serial data transfer clock signal output terminal Not used (fixed at L) Two-way data bus with the electrical volume (IC331) and FM/AM tuner unit (TU1) Muting on/off control signal output to the electrical volume (IC331) L: muting on Clock signal output to the electrical volume (IC331) and FM/AM tuner unit (TU1) Standby on/off control signal output to the power amplifier (IC751) L: standby mode, H: amplifier on Muting on/off control signal output to the power amplifier (IC751) L: muting on Audio line muting on/off control signal output H: muting on Muting on/off control signal output of the FM and AM tuner signal H: muting on Not used (open) Tape auto music sensor control signal output to the CXA2509AQ (IC301) L is output to lower the gain for audio level at FF/REW mode Forward/reverse direction control signal output to the CXA2509AQ (IC301) L: forward direction, H: reverse direction METAL control in/out terminal At initial mode: auto/manual mode selection input of METAL function (manual at L input) At manual mode: METAL on/off control signal output terminal (METAL on at H output) At auto mode: input at MTLIN (pin es) Tape muting on/off control signal output to the CXA2509AQ (IC301) H: muting on Active at ATA, FF/REW mode Dolby control in/out terminal At initial mode: valid/invalid selection input of dolby function (valid at L input) At normal mode: dolby on/off control signal output terminal (dolby on at H output) Not used this function (fixed at H) Whether a music is present or not from CXA2509AQ (IC301) is detected at auto music sensor L: music is present, H: music is not present 4VPREOUT model setting terminal L: 4VPREOUT model Fixed at H in this set Not used (open) Two-way data bus with the FM/AM tuner unit (TU1) Clock signal output to the FM/AM tuner unit (TU1) Not used (open) AM filter control signal output to the FM/AM tuner unit (TU1) L: SW mode Front panel open/close detection signal input L is input when the front panel is closed LED drive signal output of the tape window and Z indicator (LED801, LSW801) H: LED on H is output to turn on LED when front panel is opened Dial pulse input of the rotary encoder (RE901) (for volume control) A/D converter power control signal output When the KEYACK (pin wh) that controls reference voltage power for key A/D conversion input is active, L is output from this terminal to enable the input Power on/off control signal output of the illumination LED and liquid crystal display driver (IC901) H: power on

KEYIN0 DSTSEL RCIN0 QUALITY VREF VDD OSCOUT OSCIN VSS XIN XOUT MMOD NOSESW BUSON SYSRST LCDSO LCDCE LCDCKO RCIN1 RAMBU
I I I I O I O I I O I I O O O O O I I
Serial data output to the liquid crystal display driver (IC901) Chip enable signal output to the liquid crystal display driver (IC901) Rotary remote commander shift key input terminal L: shift 59 to 75 L is input at low voltage 78 H: auto metal Not used (fixed at L) DOORIND REIN1 REIN0 AD ON O I I O Not used (fixed at L) AMSIN 4VPRE E2P SIO E2P CKO SWSHIFT DOORSW I I O I/O O O O I Serial data transfer clock signal output to the liquid crystal display driver (IC901) Internal RAM reset detection signal input terminal Input terminal to check that RAM data are not destroyed due to low voltage This checking is made within 50 msec after reset Not used (fixed at L) Input of acknowledge signal for the key entry Acknowledge signal is input to accept function and eject keys in the power off status On at input of H Not used (open) Battery detect signal input from the battery detect circuit Sircs remote control signal input terminal Not used (open) Auto metal detection signal input terminal System reset signal input from the reset signal generator (IC551) and reset switch (S551) L: reset L is input for several 100 msec after power on, then it changes to H Tuner system power supply on/off control signal output to the BA4908 (IC611) H: tuner power on Beep sound drive signal output to the power amplifier (IC751) Main system power supply on/off control signal output to the BA4908 (IC611) H: power on Setting terminal for the illumination color L: amber, H: green Fixed at L in this set 83 ILLON O

30, 37

KEYACK BUIN SIRCS MTLIN RESET TUNON BEEP PW ON COLSEL

I O I I O I I O O O I

Pin No. 92 93, to 99 100
Pin Name REL POS3 POS2 POS0 POS1 LMLOD LMEJ TAPON CMON DAVSS NS MASK DAVDD
I/O I I I I I O O O O O O O
Description Rotation detection signal input from supply reel sensor and take-up reel sensor on the deck mechanism Tape position (EJECT/FF/REW/ REV/FWD mode) detection signal input from the tape operation switch on the deck mechanism POS0: L: EJECT mode, H: others mode POS1: L: FF and FWD mode, H: others mode POS2: L: REW mode, H: others mode POS3: L: REV and EJECT mode, H: others mode
Motor drive signal output to the loading/tape operation motor driver (IC351) H active (For the loading direction and forward side operation) *1 Motor drive signal output to the loading/tape operation motor driver (IC351) H active (For the eject direction and reverse side operation) *1 Tape system power supply on/off control signal output H: tape on Capstan/reel motor (M901) drive signal output H: motor on Not used (open) Ground terminal (for D/A converter) Not used (open) Discharge control signal output terminal H: discharge Not used (open) Not used (open) Power supply terminal (+5V) (for D/A converter) Not used (open)

*1 Loading/tape operation motor control Mode Terminal LMLOD (pin il) LMEJ (pin o;) STOP L L LOADING/ FORWARD H L EJECT/ REVERSE L H BRAKE H H