Preliminary

SERVICE MANUAL
DVD VIDEO RECORDER & VIDEO CASSETTE RECORDER

DR-MV1SUC, DR-MV1SUS

CABLE/DBS VCR TIMER DVD TIMER TV DVD VCR TV/CBL/DBS /DVD /DVD NUMBER / TV CH / DVD CH

CANCEL

MEMO/MARK
PROG/CHECK DISPLAY ON SCREEN
VCR PLUS+ ION IGAT U NAV EN PM TO PROGRESSIVE SCAN

PREVIOUS

PLAY/SELECT SLOW

STOP/ CLEAR

REMAIN REC MODE
ANGLE SUBTITLE LIVE CHECK TV/VCR TV/DVD AUDIO CH TV VOL. TV

VCR EJECT

VCR/DVD

OPEN/CLOSE

DUBBING

TV/CBL/DVD

PULL-OPEN

REMAIN

REC LINK

S-VIDEO

(MONO) L - AUDIO - R

REC MODE

<< SLOW >>
DR-MV1SUC, DR-MV1SUS [D3RV21]
For disassembling and assembling of MECHANISM ASSEMBLY, refer to the SERVICE MANUAL No.86700(MECHANISM ASSEMBLY).

TABLE OF CONTENTS

5 PRECAUTION. 1-3 SPECIFIC SERVICE INSTRUCTIONS. 1-5 DISASSEMBLY. 1-7 ADJUSTMENT. 1-10 TROUBLESHOOTING. 1-15
COPYRIGHT 2004 VICTOR COMPANY OF JAPAN, LIMITED

No.YD006 2004/4

SPECIFICATION
DR-MV1SUC GENERAL Power requirement Power consumption Power on Power off Temperature Operating Storage Operating position Dimensions (W H D) Weight VIDEO/AUDIO (DVD Deck) Recording format DVD-RAM: DVD Video Recording format DVD-R: DVD-Video format DVD-RW: DVD-Video format, DVD Video Recording format Maximum 8 hours (with 4.7 GB disc) (XP): Approx. 1 hour, (SP): Approx. 2 hours, (LP): Approx. 4 hours (EP): Approx. 6 hours, (FR): Approx. 1 hour - 8 hours Dolby Digital (2 ch), Linear PCM (XP mode only) MPEG2 (CBR/VBR) Y: 0.8 - 1.2 Vp-p, 75 , C: 0.2 - 0.4 Vp-p, 75 Y: 1.0 Vp-p, 75 , C: 0.3 Vp-p, 75 0.5 - 2.0 Vp-p, 75 (pin jack) 1.0 Vp-p, 75 (pin jack) -8 dB, 50 k (pin jack), Corresponding to mono (left) -8 dB, 1 k (pin jack) 4-pin for DV input Y: 1.0 Vp-p, 75 , CB/CR, PB/PR: 0.7 Vp-p, 75 Corresponding to copy protection Optical: -18 dBm, 660 nm, Coaxial: 0.7 Vp-p, 75 , Corresponding to Dolby Digital and DTS Digital Surround Bit stream Selectable in digital audio output setting menu NTSC color signal and EIA monochrome signal, 525 lines/60 fields DA4 (Double Azimuth) head helical scan system VHS NTSC standard 210 min. with ST-210 video cassette 630 min. with ST-210 video cassette 45 dB 230 lines 70 Hz to 10,000 Hz (Normal audio), 20 Hz to 20,000 Hz (Hi-Fi audio) RCA connectors: IN 2, OUT 1 Frequency synthesized tuner VHF: Channels 2 - 13, UHF: Channels 14 - 69, CATV: 113 Channels Channel 3 or 4 (switchable; preset to Channel 3 when shipped) 75 , unbalanced Approx. 5 seconds -20C to 60C (-4F to 140F) Horizontal only 435 mm 96 mm 347 mm (17-3/16" 3-13/16" 13-11/16") 6.1 kg (13.5 lbs) 5C to 35C (41F to 95F) 43 W 16.5 W AC 120 V, 60 Hz DR-MV1SUS

Recording time

Audio recording system Video recording compression system Input/Output S-video input S-video output Video input Video output Audio input Audio output i.Link Component video output Digital audio output
VIDEO/AUDIO (VCR Deck) Signal system Recording system Format Maximum recording time (SP) (EP) Signal-to-noise ratio Horizontal resolution Frequency range Input/Output TUNER/TIMER Tuning system Channel coverage RF output Memory backup time ACCESSORIES Provided accessories RF cable 1, Infrared remote control unit, "AA" battery RF cable 3, Antenna splitter, Infrared remote control 2 unit, "AA" battery 2

Signal Mode (A) Back tension cassette gauge [PUJ48076-2] (B1) PB (B2) Eject end Adjust pin [Mechansim assembly]

Stamping(b) OK

CONTROL PLATE Stamping(a)

ADJUST PIN

Fig.4-2a 4.2.2 FM waveform linearity
Signal Mode Equipment Measuring point External trigger Adjustment part Specified value Adjustment tool (A1) (A2) (B) (C) (D) (E) (F) (G) (H) Alignment tape(SP, stairstep, NTSC) [MHP] Alignment tape(EP,stairstep,NTSC) [MHP-L] PB Oscilloscope TP106 (PB. FM) TP111 (D.FF) Guide roller [Mechanism assembly] Flat V.PB FM waveform Roller driver [PTU94002]
Adjustment part (F) Specified value (G)
25 - 51 gfcm (2.45 - 5 x 10-3 Nm)
(1) Play back the back tension cassette gauge (A). (2) Check that the indicated value on the left side gauge is within the specified value (G). (3) If the indicated value is not within the specified value (G), perform the adjustment in a following procedure.(See Fig.4-2a.) a) Remove the top frame, cassette holder and side frames (L/R) all together. (Refer to the SERVICE MANUAL No.86700 [MECHANISM ASSEMBLY].) b) Rotate the loading motor gear to move the control plate so that the triangular stamping to the left of the Pstamping is aligned with the stamping (a) on the main deck. This positioning is mode (B1). c) Adjust by turning the adjustment pin so that the tip of the tension arm is aligned with the stamping (b) on the main deck. d) Rotate the reel disk (S) by about one turn clockwise and make sure that the round hole of the adjustment pin is located in the OK range. If it is outside this range, restart the adjustment from the beginning. After completion of the adjustment, rotate the loading gear motor to return it to the mode (B2) position.
(1) Play back the alignment tape (A1). (2) Apply the external trigger signal to D.FF (E), to observe the V.PB FM waveform at the measuring point (D). (3) Set the VCR to the manual tracking mode. (4) Make sure that there is no significant level drop of the V.PB FM waveform caused by the tracking operation, with its generally parallel and linear variation ensured. Perform the following adjustments when required. (See Fig. 4-2c.) (5) Reduce the V.PB FM waveform by the tracking operation. If a drop in level is found on the left side, turn the guide roller of the pole base assembly (supply side) with the roller driver to make the V.PB FM waveform linear. If a drop in level is on the right side, likewise turn the guide roller of the pole base assembly (take-up side) with the roller driver to make it linear. (See Fig. 4-2c.) (6) Make sure that the V.PB FM waveform varies in parallel and linearly with the tracking operation again. When required, perform fine-adjustment of the guide roller of the pole base assembly (supply or take-up side). (7) Unload the cassette tape once, play back the alignment tape (A1) again and confirm the V.PB FM waveform. (8) After adjustment, confirm that the tape wrinkling does not occur at the roller upper or lower limits. (See Fig. 4-2b.) [Perform adjustment step (9) only for the models equipped with SP mode and EP (or LP) mode.] [Perform adjustment step (9) only for the models equipped with SP mode and EP (or LP) mode.] (9) Repeat steps (1) to (8) by using the alignment tape (A2).

Alignment tape [SP, stairstep] played with the SP head Alignment tape [EP(LP), stairstep] played with the EP(LP) head
X-value adjustment point Drum side Control head position Capstan side

Maximum

Fig.4-2d

Fig.4-2f

1-12 (No.YD006)
4.3 Electrical adjustment Note: The following adjustment procedures are not only necessary after replacement of consumable mechanical parts or board assemblies, but are also provided as references to be referred to when servicing the electrical circuitry. In case of trouble with the electrical circuitry, always begin a service by identifying the defective points by using the measuring instruments as described in the following electrical adjustment procedures. After this, proceed to the repair, replacement and/or adjustment. If the required measuring instruments are not available in the field, do not change the adjustment parts (variable resistor, etc.) carelessly. 4.3.1 Servo circuit 4.3.1.1

Signal

(1) Record the signal (A2) in the mode (B1), and play back the recorded signal. (2) Set the VCR to the manual tracking mode. (3) Set the VCR to the FWD slow (+1/6x) mode. (4) Transmit the code (F) from the Jig RCU to adjust so that the noise bar becomes the specified value (G) on the TV monitor in the slow mode. (5) Set the VCR to the Stop mode. (6) Confirm that the noise bar is (G) on the TV monitor in the slow mode. (7) Repeat steps (3) to (6) in the REV slow (+1/6x) mode. (8) Repeat steps (1) to (7) in the mode (B2). Note: For FWD slow (+1/6x) playback, transmit the code 08 from the Jig RCU to enter the slow playback mode, and transmit the code D0for REV slow (-1/6x) mode. 4.3.2 DVD Video circuit Note when perform these adjustments, set the unit to DVD mode.(DVD lamp lights up) 4.3.2.1
Signal Mode Equipment EVR mode EVR address

Switching point

Stairstep signal Alignment tape(EP,stairstep,NTSC) [MHP-L] PB Oscilloscope VIDEO OUT terminal (75 ohm terminated) TP106 (PB. FM) TP111 (D.FF) Jig RCU: Code 5A 6.5 0.5H Jig RCU [PTU94023B]
(A1) (A2) Mode (B) Equipment (C) Measuring point (D) External trigger Adjustment part Specified value Adjustment tool (E) (F) (G) (H)

EE COMPONENT Y level

(A) (B) (C) (F1) (F2) (F3) (F4) (F5) Internal color bar EE Oscilloscope COMPONENT Y terminal Jig code 95 "ADJUST01 : **" Jig code 21 Jig code 18 or 19 (Channel +/-) Jig code 3C

EE COMPONENT PB/CB level

(A) (B) (C) (F1) (F2) (F3) (F4) (F5) Internal color bar EE Oscilloscope COMPONENT PB/CB terminal Jig code 95 "ADJUST06 : **" Jig code 26 Jig code 18 or 19 (Channel +/-) Jig code 3C
0.Vp-p (terminated) Jig RCU [PTU94023B]
(1) Observe the CB OUT waveform at the measuring point (D). (2) Set the VCR to the EVR mode by transmitting the code (F1) from the Jig RCU. (3) Set the EVR address to (F2) by transmitting the code (F3) from the Jig RCU. (4) Transmit the code (F4) from the Jig RCU to adjust so that the CB level of the CB OUT waveform becomes the specified value (G). (5) Release the EVR mode of the VCR by transmitting the code (F5) from the Jig RCU again. (When the EVR mode is released, the adjusted data is memorized.)

1-14 (No.YD006)

SECTION 5 TROUBLESHOOTING
5.1 Manually removing the cassette tape If you cannot remove the cassette tape which is loaded because of any electrical or mechanical failures, manually remove it by taking the following steps. (1) Unplug the power cord plug from the power outlet. (2) Refer to the disassembly procedure of the VCR and perform the disassembly of the major parts before removing the mechanism assembly. (See Fig. 5-1a) sion arm assembly free from tension, pull out the tape on the pole base assembly. Take the spring(a) of the pinch roller arm assembly off the hook, and detach it from the tape. (4) Remove the screw (a) of the side frame (L/R). (5) Hold the slack tape and cassette cover together, lift the cassette tape, top frame, cassette holder and side frames (L, R) together from the rear and remove them by dis-engaging the hooks (a) and (b).
Screw(a) Cassette tape Cassette holder Top frame Side frame(R) Screw(a)

Fig.5-1a

Tension arm assembly Pole base assembly Pinch roller arm assembly
Hook(a) Side frame(L) Hook(b)
Fig.5-1c (6) Take up the slack of the tape into the cassette. This completes removal of the cassette tape. 5.2 Manually removing the disk(DVD/CD) If you cannot remove the disk which is loaded because of any electrical or mechanical failures, manually remove it by taking the following steps.

Spring(a)

Direction of unloading
5.2.1 Method 1 (1) AC Plug is pulled out at once and inserted again. (2) It is displayed on FDP as "LOADING", and while it blinks, pushing the OPEN/CLOSE button is continued. (3) After a while, a tray opens (About 20 seconds). (4) After removed a disk, press the OPEN/CLOSE button again to close the tray. (5) The "LOADING" blink display of FDP disappears and it will be in a standby mode. (6) If the POWER button is pushed, it will usually be operating. 5.2.2 Method 2 (1) Unplug the ACpower cord from the AC outlet. (2) Remove the top cover and front panel assembly. (Refer to the disassembly procedure and perform the disassembly of the major parts before removing) (3) Pass a thin wire through a hole in the DVD unit. (4) The disc tray comes out slightly. Take out the disc tray manually.(See Fig.5-2a)

Fig.5-1b (3) Unload the pole base assembly by manually turning the gear of the loading motor until the pole base assembly is hidden behind the cassette lid. In doing so, hold the tape by the hand to keep the slack away from any grease. (See Fig.5-1b ) In case of mechanical failures, while keeping the ten-

(No.YD006)1-15

EMG display of FDP display mode (1) Transmit the code 59 from the Jig RCU. The FDP shows the EMG content in the form of E:**:**.

<Example 1> E : 01

Latest EMG <Example 2>

disk tray hole

No EMG record
Fig.5-2a 5.3 Emergency display function (VHS SECTION) This unit saves details of the last two emergencies as the EMG history and allows the status of the VCR and the mechanism of each emergency to be shown both on the display and as OSD information. When using the emergency function, it is required to set the VCR to the Jig RCU mode.
Jig RCU [Data transmitting method] Depress the " " ( 3 ) button after the data code is set.
(2) Transmit the code 59 from the Jig RCU again. The FDP shows the EMG detail information <1> in the form of *1: *2 : 34. *1 : Deck operation mode at the moment of EMG *2 : Mechanism operation mode at the moment of EMG 3- : Mechanism sensor information at the moment of EMG -4 : Mechanism mode position at the moment of EMG (3) Transmit the code 59 from the Jig RCU once again. The FDP shows the EMG detail information <2> in the form of *5 : *6 : *7. *5 : Type of the cassette tape in use <1>. *6 : Winding position of the cassette tape in use *7 : Type of the cassette tape in use <2> (Winding area) (4) Transmit the code 59 from the Jig RCU once again. The FDP shows the EMG detail information <3> in the form of *8 : *9 : *10. *8 : Previous deck operation mode at the moment of EMG *9 : The deck operation mode of the one before the last at the moment of EMG *10: The deck operation mode of the one prior to one above at the moment of EMG (5) Transmit the code 59 from the Jig RCU once again to reset the display. 5.3.2 (1) (2) (3) Clearing the EMG history Display the EMG history. Transmit the code 36 from the Jig RCU. Reset the EMG display.
Fig.5-3a Jig RCU [PTU94023B] 5.3.1 Displaying the EMG information The EMG detail of information can be displayed by transmitting the code "59" from the Jig RCU. Note: The EMG detail information <1><2> show the information on the latest EMG. It becomes - - : - - : - - when there is no latest EMG record.

0: 00 E: * * 1E: * * 1: * 1
Normal display EMG content display (Latest) EMG content display (Previous) See 5.3.4 See 5.3.4
5.3.3 Details of the OSD display in the EMG display mode During the EMG display, the OSD shows the data on the deck mode, etc. The details of the display contents are as follows. Notes: The display is variable depending on the part No. of the System Control microcomputer (IC3001) built into the VCR. In the following, refer to the figure carrying the same two characters as the top two characters of the part number of your IC. The sensor information in the OSD display contents is partially different from the mechanism sensor information in EMG detail information <1>. [For MN* only]
EMG detail information <1> See 5.3.5 [Deck operation mode] 2: * 2 EMG detail information <1> See 5.3.5 [Mechanism operation mode] 3: 34 EMG detail information <1> See 5.3.5 [Mechanism sensor information and Mechanism mode position] See 5.3.6 4: * 5 EMG detail information <2> [Type of the cassette tape in use <1>] See 5.3.6 5: * 6 EMG detail information <2> [Winding position of the cassette tape in use] See 5.3.6 6: * 7 EMG detail information <2> [Type of the cassette tape in use <2> (Winding area)] 7: * 8 EMG detail information <3> See 5.3.7 [Previous deck operation mode] 8: * 9 EMG detail information <3> See 5.3.7 [The deck operation mode of the one before the last] 9: * 10 EMG detail information <3> See 5.3.7 [The deck operation mode of the one prior to one above]

AA FF KK PP UU

BB GG LL QQ VV

CC HH MM RR WW

DD I I NN SS XX

EE JJ OO TT YY

EMG display of 7 FDP display model Fig.5-3b 1-16 (No.YD006)
AA BB CC DD EE FF GG HH II JJ KK LL MM NN OO PP YY
: Deck operation mode (See EMG detail information <1>.) : Mechanism operation mode (See EMG detail of information <1>.) : Mechanism transition flag : Capstan motor control status : Loading motor control status : Sensor information (See sensor information details.) : Capstan motor speed : Key code (JVC code) : Supply reel winding diameter data higher 8 bits. : Supply reel winding diameter data lower 8 bits. : Mechanism sensor information & mechanism mode position(See EMG detail of information <1>.) : Tape speed data higher 8 bits. : Tape speed data lower 8 bits. : Cassette tape type <2> higher 8 bits. (See EMG detail of information <2>.) : Cassette tape type <2> lower 8 bits. (See EMG detail of information <2>.) : General data display area : General data display area
<Display> ** h * * * * * * * *
Encoder data (See Mechanism mode sequence.) Remote pause End sensor Start sensor Cassette tab present = 1 Cassette tab broken = 0
[For both MN*/HD*] Mechanism mode sequence
Mechanism mode - Encoder data
*FF:Sensor information details

LSA LSB LSC LSD

Encoder output = Low or Trerminal - GND = SHORT Encoder output = High or Trerminal - GND = OPEN
Encoder data (See Mechanism mode sequence.) Cassette tab present = 1 Cassette tab broken = 0 Cassette absent = 1 Cassette present = 0 Start sensor End sensor [For *HD only]
Position EJECT EJECT1 EJECT2 ULSTOP UPPER ONSTOP(PLAY) FWD/SS REV/SS OFFSTOP FFREW-BRAKE FFREW MIDDLE
Encoder data 0 h = h = h = h = h = h = h = h = h = h = 1001 A h = 1010 F h = 1111
AA DD GGGG I I KKKK ROM No.

BB EE HHHH JJJJ LLLL

: Key code (JVC code) : Deck operation mode(See EMG detail information <1>.) CC : Mechanism operation mode (See EMG detail information <1>.) DD : Sensor information (See sensor information details.) EE : Capstan motor speed (Search, double speed) FF : Tracking value GGGG : Cassette tape type <2>, 16 bits. (See EMG detail information <2>.) HHHH : Supply reel winding diameter data II : Capstan motor speed (FF/REW, double speed) JJJJ : Tape speed data, lower 8 bits. KKKK : General data display area LLLL : General data display area MMMM : General data display area *DD:Sensor information details

LSD LSC LSB LSA GND

(No.YD006)1-17
5.3.4 EMG content description Note: EMG contents E09 are for the model with Dynamic Drum (DD).

E01: Loading EMG

CONTENT
If the mechanism mode does not change to the next mode within 4 seconds after the loading motor starts rotating in the loading direction, while the mechanism is in the after-loading position (with the tape up against the pole base), [E:01] is identified and the power is switched OFF. However, if the tape loading is not completed within 4 seconds after the loading motor starts rotating in the loading direction, the tape is simply unloaded and ejected. No EMG data is recorded in this case. When the mechanism mode cannot be changed to another mode even when the loading motor has rotated for more than 4 seconds in the unloading direction, [E:02] is identified and the power is turned off.
1. The mechanism is locked in the middle of the mode transition during a tape loading operation. 2. The mechanism overruns during the tape loading operation because the SYSCON cannot recognize the mechanism mode normally. This problem is due to a cause such as a rotary encoder failure. 3. Power is not supplied to the loading MDA. (M12V/Vcc/Vref/ICP are disconnected in the middle.)

E02: Unloading EMG

1. The mechanism is locked in the middle of mode transition. 2. Without an eject signal being sent from the SYSCON, unloading is attempted (i.e. Ejection is attempted while the tape is still inside the mechanism.) because the SYSCON cannot recognize the mechanism mode normally. This is due to a cause such as a rotary encoder failure. (Mechanism position: UPPER) 3. Power is not supplied to the loading MDA. (M12V/Vcc/Vref/ICP are disconnected in the middle.) 1. The take-up reel pulse is not generated in the FWD transport modes (PLAY/FWD SEARCH/FF, etc.) because; 1) The idler gear is not meshed with the take-up reel gear because the mechanism mal-functions for some reason. 2) The idler gear is meshed with the take-up reel gear, but incapable of winding due to too large mechanical load (abnormal tension); 3) The reel is rotating normally but an FG pulse is not generated due to the take-up reel sensor failure. 2. The supply reel pulse is not generated in the REV transport modes (REV SEARCH/REW, etc.) because; 1) The idler gear is not meshed with the supply reel gear because the mechanism mal-functions for some reason. 2) The idler gear is meshed with the supply reel gear, but incapable of winding due to too large a mechanical load (abnormal tension); 3) The reel rotates normally but the FG pulse is not generated due to a supply reel sensor failure. 3. Power(SW5V) is not supplied to the reel sensor on the tape winding side. 1. The drum could not start or the drum rotation has stopped due to too large a load on the tape, because; 1) The tape tension is abnormally high; 2) The tape is damaged or a foreign object (grease, etc.) adheres to the tape. 2. The drum FG pulse did not reach the System controller CPU because; 1) The signal circuit is disconnected in the middle; 2) The FG pulse generator (hall device) of the drum is faulty. 3. The drum control voltage (DRUM CTL V) is not supplied to the MDA. 4. Power (M12V) is not supplied to the drum MDA. 1. The cassette cannot be ejected due to a failure in the drive mechanism of the housing. 2. When the housing load increases during ejection, the loading motor is stopped because of lack of headroom in its drive torque. Housing load increasing factors: Temperature environment (low temperature, etc.), mechanism wear or failure. 3. The sensor/switch for detecting the end of ejection are not functioning normally. 4. The loading motor drive voltage is lower than specified or power (M12V) is not supplied to the motor (MDA). 5. When the user attempted to eject a cassette, a foreign object (or perhaps the user's hand) was caught in the opening of the housing. 1. The capstan could not start or the capstan rotation has stopped due to too large a load on the tape, because; 1) The tape tension is abnormally high (mechanical lock); 2) The tape is damaged or a foreign object (grease, etc.) is adhered to the tape (occurrence of tape entangling, etc.). 2. The capstan FG pulse did not reach the System controller CPU because; 1) The signal circuit is disconnected in the middle; 2) The FG pulse generator (MR device) of the capstans is faulty. 3. The capstan control voltage (CAPSTAN CTL V) is not supplied to the MDA. 4. Power (M12V, SW5V) are not supplied to the capstan MDA. 1. The SW 5 V power supply circuit is shorted with GND. 2. The SW 12 V power supply circuit is shorted with GND. 1. The DVD unit is defective. 2. Contact failure of the wires in the DVD unit or VHS side. 1. 2. 3. 4. 5. 6. 7. 8. 9. The FG sensor is defective. (The soldered parts have separated.) The pull-up resistor at the FG sensor output is defective. (The soldered parts have separated.) Contact failure or soldering failure of the pins of the connector (board-to-board) to the FG sensor. The power (5V) to the sensor is not supplied. (Connection failure/soldering failure) The FG pulse is not sent to the System Controller CPU. The tilt motor is defective. (The soldered parts have separated.) The drive power to the tilt motor is not supplied. (Connection failure/soldering failure) The tilt motor drive MDA - IC is defective. Auto-recovery of the DD tilting cannot take place due to overrun.

E03: Take Up Reel Pulse EMG
When the falling edje of the take-up reel pulse has not been generated for more than 4 seconds in the capstan rotating mode, [E:03] is identified, the pinch rollers are turned off and stopped, and the power is turned off. In this case, however, the mechanism should be in position after tape loading. Note that the reel EMG is not detected during Slow/Frame advance operations.

E04: Drum FG EMG

When the drum FG pulse has not been input for more than 3 seconds in the drum rotating mode, [E:04] is identified, the pinch rollers are turned off and stopped, and the power is turned off.

E05: Cassette Eject EMG

If the cassette does not reach the eject position within about 0.7 seconds after the cassette housing has started the cassette ejection operation, [E:05] is identified, the drive direction is reversed to load the tape, the mode is switched to STOP mode with the pinch roller OFF, and the power is switched OFF. During the cassette insertion process, the drive direction is reversed and the cassette is ejected if the tape is not up against the pole base within about 3 seconds after the start of the cassette pullingin operation. If the cassette does not reach the eject position within about 0.7 seconds after the drive mode reversal operation, [E:05] is identified and the power is switched OFF immediately. When the capstan FG pulse has not been generated for more than 1 second in the capstan rotating mode, [E:06] is identified, the pinch rollers are turned off and stopped, and the power is turned off.However, the capstan EMG is not detected in SLOW/ STILL modes. Note that, if the part number of the System Control IC begins with "MN" or "M3", the capstan EMG is not detected even during the FF/REW operation.

E06: Capstan FG EMG

E07: SW Power Short-Circuit EMG E08: DVD EMG
When short-circuiting of the SW power supply with GND has lasted for 0.5 second or more, [E:07] is identified, all the motors are stopped and the power is turned off. When communication with a system computer of VHS side is not carried out because of the defective DVD unit, or when the DVD unit must be reset When the DD FG pulse is not generated within 2.5 seconds, [E:09] is identified, the tilt motor is stopped and the power is turned off.

DD FG EMG

E0A: Supply Reel Pulse EMG
When the falling edge of the supply reel pulse has not been generated for more than 10 seconds in the capstan rotating mode, [E:0A] is identified and the cassette is ejected (but the power is not turned off). In this case, however, the mechanism should be in the position after tape loading (with the tape up against the pole base). Also note that the reel EMG is not detected during Slow/ Frame advance operations.
1. The supply reel pulse is not generated in the FWD transport mode (PLAY/FWD SEARCH/FF, etc.) because; 1) PLAY/FWD or SEARCH/FF is started while the tape in the inserted cassette is cut in the middle; 2) A mechanical factor caused tape slack inside and outside the supply reel side of the cassette shell. In this case, the supply reel will not rotate until the tape slack is removed by the FWD transport, so the pulse is not generated until then; 3) The reel is rotating normally but the FG pulse is not generated due to a supply reel sensor failure. 2. The take-up reel pulse is not generated in the REV transport mode (REV SEARCH/REW, etc.). 1) REV SEARCH/REW is started when the tape in the inserted cassette has been cut in the middle; 2) A mechanical factor caused tape slack inside and outside the take-up reel side of the cassette shell. In this case, the take up will not rotate until the tape slack is removed by the REV transport, so the pulse will not be generated until that time; 3) The reel is rotating normally but the FG pulse is not generated due to a take-up reel sensor failure. 3. The power (SW 5V) to a reel sensor is not supplied.
EU1: Head clog warning history
Presupposing the presence of the control pulse output in the PLAY mode, when the value obtained by mixing the two V.FM output channels (without regard to the A.FM output) has remained below a certain threshold level for more than 10 seconds, [E:U1] is identified and recorded in the emergency history. During the period in which the head clog is detected, the FDP shows "U:01" and the OSD repeats the "3 seconds of warning display" and the "7 seconds of noise picture display" alternately. EMG code : "E:C1" or "E:U1" / FDP : "U:01" / OSD : "Try cleaning tape." or "Use cleaning cassette." The head clog warning is reset when the above-mentioned threshold has been exceeded for more than 2 seconds or the mode is changed to another mode than PLAY.

1-18 (No.YD006)

5.3.5 EMG detail information <1> The status (electrical operation mode) of the VCR and the status (mechanism operation mode/sensor information) of the mechanism in the latest EMG can be confirmed based on the figure in EMG detail information <1>. [FDP/OSD display] *1 : *2 : 34 *1 : Deck operation mode at the moment of EMG *2 : Mechanism operation mode at the moment of EMG 3- : Mechanism sensor information at the moment of EMG -4 : Mechanism mode position at the moment of EMG Note: For EMG detailed information <1>, the content of the code that is shown on the display (or OSD) differs depending on the parts number of the system control microprocessor (IC3001) of the VCR. The system control microprocessor parts number starts with two letters, refer these to the corresponding table. *1 : Deck operation mode
[Common table of MN* and HD]
Display MN* 04 0C 24 2C 44 4C 6C 8C 8D 8E AC AD CC CD EC ED HD* 04 0E 26 2E 4C 6E 8F AF CD EF Deck operation mode Mechanism being initialized STOP with pinch roller pressure off (or tape present with P.OFF) STOP with pinch roller pressure on POWER OFF as a result of EMG PLAY (Normal playback) REC Cassette ejected FF Tape fully loaded, START sensor ON, short FF Cassette identification FWD SEARCH before transition to FF (SPx7-speed) FWD SEARCH (variable speed) including x2-speed INSERT REC REW Cassette identification REV SEARCH before transition to REW (SPx7-speed) REV SEARCH (variable speed) AUDIO DUB INSERT REC (VIDEO + AUDIO) FWD STILL / SLOW REV STILL / SLOW REC PAUSE Back spacing Forward spacing (FWD transport mode with BEST function) INSERT REC PAUSE INSERT REC back spacing AUDIO DUB PAUSE AUDIO DUB back spacing INSERT REC (VIDEO + AUDIO) PAUSE INSERT REC (VIDEO + AUDIO) back spacing
*2 : Mechanism operation mode

[Table of MN*]

Display 0A 0B 0C 0D 0E 0F Mechanism operation mode Command standby (No command to be executed) Immediate Power OFF after EMG occurrence Loading from an intermediate position during mechanism initialization Unloading due to EMG occurrence during mechanism initialization Ejecting cassette (ULSTOP to EJECT) Inserting cassette (EJECT to ULSTOP) Loading tape (ULSTOP to PLAY) Unloading tape (PLAY to ULSTOP) Transition from pinch roller ON to STOP Transition from pinch roller OFF to STOP (PLAY to OFFSTOP) Transition from pinch roller OFF to STOP at power OFF Transition from pinch roller ON to STOP at power ON Transition to PLAY Transition to Search FF Transition to REC Transition to FWD STILL/SLOW Transition to REV STILL/SLOW Transition to Search REV Transition from FF/REW to STOP Transition to FF Transition to REW Tape end detection processing during loading Short FWD/REV at tape sensor ON during unloading Transition to FF/REW brake mode

-4 : Mechanism mode position
Mechanism sensor information Display Deck operation mode
Notes: Cassette tape type <1> is identified a few times during mode transition and the identification count is variable depending on the cassette tape type. If an EMG occurs in the middle of identification, the cassette tape type may not be able to be identified. If other value than those listed in the above table is displayed, the cassette tape type is not identified. *6 : Cassette tape winding position The cassette tape winding position at the moment of EMG is displayed by dividing the entire tape (from the beginning to the end) in 21 sections using a hex number from 00 to 14. 00 : End of winding 14 : Beginning of winding FF : Tape position not identified *7 : Cassette tape type <2> (Winding area)
Display - - - 0C 06 - 0C 06 - 0C 07 - - 0B 0C - 0D 0D - 0F 0E - - - - - - - - - - - - - 1B Cassette tape type <2> Cassette type not identified C cassette, thick tape TC-10 Small reel, thick tape T-20 C cassette, thick tape TC-20P C cassette, thin tape TC-40 C cassette, thin tape TC-30 Small reel, thick tape T-40 Small reel, thick tape T-60 Small reel, thick tape T-80(DF-160) Small reel, thick tape T-90(DF-180) Small reel, thick tape T-100 Small reel, thin tape T-140 Small reel, thick tape T-120(DF-240) Small reel, thick tape T-130 Small reel, thin tape T-160 Small reel, thin tape T-210(DF-420) Small reel, thin tape T-180(DF-360) Small reel, thin tape T-168 Small reel, thick tape DF-300 Large reel T-20 Large reel T-30 Large reel T-40 Large reel T-60 (Reference) Word data (Beginning) (End) (0497 - 0506) (0732 - 0858) (05A9 - 0661) (0599 - 05FF) (0AA1 - 0C07) (0623 - 063D) (0C41 - 0CC3) (0611 - 0638) (0C0C - 0CB2) (07CC - 08E5) (09FD - 0B78) (0C20 - 0DFC) (0D31 - 0F3E) (0E43 - 107F) (10E1 - 120C) (1073 - 1313) (1185 - 1429) (12D3 - 141F) (1373 - 14C3) (1357 - 14C0) (1395 - 14EE) (13A8 - 14CE) (1536 - 1618) (1647 - 175A) (1759 - 189C) (1989 - 1B2F)
Even number (0, 2, 4, 6, 8, A, C, E)
Odd number (1, 3, 5, 7, 9, B, D, F)

ENTER SELECT

SELECT WITH [CURSORS] THEN PRESS [ENTER]
SYSTEM I NFO VERSION INITIALIZE INFORMATION
Si l i co n ve rsi o n o f E5 BSP Dri ve f i rm wa re ve rsi o n Dri ve l a st e rro r

1B0 1.2/010 P00 00

Drive firmware version
NOTE: Items other than the ones described above are not used in service work. 5.4.2 Upgrading firmware of the unit Firmware upgrade disk supports only DVD-RAM media When firmware needs to be upgraded, Digital Video Storage CSG will distribute a firmware upgrade disk. (1) Set the unit to the Jig RCU mode. (2) Set the unit to DVD mode.(DVD lamp lights up) (3) Transmit "70" from the JIG RCU. (4) "UPDATE" appears in FDP, load the upgrade disk on the disk tray then close the disk tray. (5) Wait for approx.30 seconds while FDP is displayed as "UPDATE." (6) Then, "FW UPDATE" appears in FDP. It takes approx. 3 minutes at maximum to upgrade firmware. (7) The tray is ejected. Then, take out the disk and close the tray. (8) The tray is ejected. Then, take out the disk and close the tray.Turn off the unit, and unplug the AC power cord from the AC outlet. Then plug the AC power cord into the AC outlet. (9) "LOADING" of FDP disappears. then, turn on the unit. (10) Display the SYSTEM INFO menu, and check the version of the firmware. (11) Cancel the JIG RCU mode ATTENTION : Firmware may sometimes not be upgraded successfully. If firmware is not upgraded successfully, the tray opens, and "ERROR" appears in FDP. If firmware is upgraded successfully, the tray opens, and "OPEN" appears in FDP. If unplug the AC power cord from the AC outlet while "ERROR" appears, data in the flash memory is destroyed and the unit cannot start: the flash memory needs to be replaced. After upgrading procedure, pay enough attention to FDP when the tray opens. When "ERROR" appears, upgrade firmware again in the following way to restore the firmware (1) Transmit "70" from theJIG RCU while the tray opens. (2) When "UPDATE" appears in FDP, close the tray and make the unit read the disk. Upgrading starts. (3) After (2), perform upgrading procedure (4) - (10) of 5.4.2 Upgrading firmware of the unit above.

(No.YD006)1-21

5.4.3 The exchange method of a tray fitting When DVD unit is exchanged, please transplant a tray fitting from an old drive, or change for a new tray fitting. 5.4.4 Initialization method Since the information on internal is as follows if it initializes, before enforcement, it is required to surely obtain the approval of a customer. All initial setting of DVD returns to an initial state. (1) Set the unit to theJIG RCU mode. (2) Set the unit to DVD mode.(DVD lamp lights up) (3) Press the "POWER" button on the unit to turn off the unit. (4) Transmit "6F" from the JIG RCU. (5) Confirm the FDP changes from "FACTORY" to "CHECK OK". (6) Press the "VCR/DVD" buttojn on the unit so that the VCR lamp lights up on the unit. (7) To cancel JIG RCU mode transmit "9D" from the JIG RCU. 5.4.5 The setting method of a region code A region code should be set after a DVD unit is replaced. While a DVD unit is in a warehouse as a stock, a region code of the DVD unit is not determined. Only replacement of a DVD unit may cause abnormal playback of Disc. Set a region code of a DVD unit in the following procedure. (1) Replace a DVD unit. (2) Set the unit to JIG RCU mode. (3) nsert a DVD-RAM disc in the unit to make the unit read the DVD-RAM disc.(The DVD-RAM disk used in this procedure is not a disk for upgrade. If it is a DVD-RAM disk, it is good anything.) (4) Transmit "F2" from the JIG RCU. (5) "REGION 1" is displayed on FDP. (6) Set the unit to STANDBY mode. (7) Turn the POWER switch ON. (8) To cancel JIG RCU mode transmit "9D" from the JIG RCU. (9) Colon is displayed on a clock on FL display. (10) Setting is completed in the procedure above.

REVISED

YB-SB-00005-5

SUBJECT:

TO IMPROVE PICTURE AND SOUND NOISE
Performed at factory Priority ( ) ( ) ( ) ( ) (!) ( )

MARCH, 2005

Model & Manual No.

Shown below

Reference Information
S. All Products. A. Items in JVC/Dealer stock/Service return goods. B. JVC stock/Units returned for service. C. Sold items returned for service. D. Only Units related to this bulletin. E. Others.
Revise one of the wire position of page 7/9 due to miss print of -4
<Models> DR-M10SUS DR-MV1SUS DR-MH20SUS DR-MH30SUS DR-MX1SUS SR-MV30US SR-MV50US DR-M10SUC DR-MV1SUC DR-MH20SUC DR-MH30SUC DR-M10SUJ DR-MV1SUJ DR-MH20SUJ DR-MH30SUJ : : : : : : : : : : : : : : No. XA019 No. YD006 No. YD026 No. YD026 No. YD041 No. YD012 No. YD045 No. XA019 No. YD006 No. YD026 No. YD026 No. XA019 No. YD022 No. YD026 No. YD026 DR-M10BE DR-MH20SE DR-MH30SE DR-M10SEU DR-MV1SEU DR-MV1BEU DR-M10SEK DR-M10BEK DR-MV1SEK DR-MV1BEK DR-MH20SEK DR-MH30SEK DR-M10SER DR-MH30SER DR-M10SEF DR-MV1SEF DR-MH20SEF DR-MH30SEF : : : : : : : : : : : : : : : : : : No. XA020 No. YD027 No. YD027 No. XA020 No. YD014 No. YD014 No. XA020 No. XA020 No. YD014 No. YD014 No. YD027 No. YD027 No. XA020 No. YD027 No. XA020 No. YD014 No. YD027 No. YD027 DR-M10SAA : DR-M10SAA2 : DR-MV1SAA : DR-MH30SAA : DR-M10SAG : DR-MH30SAG : DR-MV1SAS : DR-M10SAX : DR-MH30SAX : DR-M10STW : DR-MH30STW : No. YD025 No. YD025B No. YD036 No. YD044 No. YD025 No. YD044 No. YD036 No. YD025 No. YD044 No. YD046 No. YD026
ATTACHMENT ( ) NONE ( ) SCHEMATIC DIAGRAM
) EXPLODED VIEW ) COMPONENT/PWB LAYOUT
( ) ADJUSTMENT PROCEDURE ( ! ) SEE NEXT PAGE
VICTOR COMPANY OF JAPAN, LIMITED
AV & MULTIMEDIA COMPANY, GLOBAL QUALITY MANAGEMENT DEPARTMENT, CUSTOMER SATISFACTION CENTER [13000] 12, 3-chome, Moriya-cho, Kanagawa-ku, Yokohama, Kanagawa, 221-8528, Japan TEL:+81-45-450-2552 FAX:+81-45-450-2558
<Symptom> After make the power on mode for a while, the green or white noise and sound noise occurs and then become the loading sutiation.
<Cause> The clock of some type of IC1401 (DIGITAL BOARD ASSY) is unstable.
<Service measure> 1. Countermeasure for DR-M10, DR-MV1 Check the the DIGITAL BOARD ASSY No. Then select the relevant coumtermesure from the below table according to the DIGITAL BOARD ASSY No. Then do the relevant cuontermesure as shown below.
MODELS DR-M10SUS DR-M10SUC DR-M10SUJ DR-M10BE DR-M10SEU DR-M10SEK DR-M10BEK DR-M10SEF DIGITAL BOARD ASSY No. LPA10236-01A, B, C LPA10236-01D LPA10236-01E ~ LPA10236-03A, B, C LPA10236-03D LPA10236-03E COUNTERMESURE IN SERVICE A B NEED NOT A B NEED NOT A B NEED NOT A B NEED NOT A B NEED NOT A B NEED NOT A B NEED NOT A B NEED NOT A B NEED NOT A B NEED NOT A B NEED NOT A B NEED NOT A B NEED NOT CARRIED OUT COUNTERMESURE IN FACTRORY FOR VIDEO CLOCK FOR AUDIO CLOCK NOT COMPLIED WITH NOT COMPLIED WITH COMPLIED WITH NOT COMPLIED WITH COMPLIED WITH COMPLIED WITH NOT COMPLIED WITH NOT COMPLIED WITH COMPLIED WITH COMPLIED WITH NOT COMPLIED WITH COMPLIED WITH
DR-MV1SUS LPA10236-05A, B, C, D DR-MV1SUC DR-MV1SUJ LPA10236-05E, F SR-MV30US LPA10236-05G ~ DR-MV1SEU LPA10236-06A, B DR-MV1BEU DR-MV1SEK LPA10236-06C DR-MV1BEK DR-MV1SEF LPA10236-06D~ DR-M10SAA LPA10236-07A LPA10236-07B LPA10236-07C ~ DR-M10SAA2 LPA10236-11A LPA10236-11B LPA10236-11C ~ DR-M10SER LPA10236-08A LPA10236-08B LPA10236-08C ~ DR-M10SAG LPA10236-10A LPA10236-10B LPA10236-10C ~ DR-M10SAX LPA10236-12A LPA10236-12B LPA10236-12C ~ DR-M10STW LPA10236-13A, B, C LPA10236-13D LPA10236-13E ~ DR-MV1SAA LPA10236-17A LPA10236-17B, C LPA10236-17D ~ DR-MV1SAS LPA10236-20A LPA10236-20B LPA10236-20C ~ SR-MV50US LPA10236-21A LPA10236-21B LPA10236-21C ~
NOT COMPLIED WITH NOT COMPLIED WITH COMPLIED WITH COMPLIED WITH NOT COMPLIED WITH COMPLIED WITH
NOT COMPLIED WITH NOT COMPLIED WITH COMPLIED WITH COMPLIED WITH NOT COMPLIED WITH COMPLIED WITH COMPLIED WITH NOT COMPLIED WITH COMPLIED WITH COMPLIED WITH NOT COMPLIED WITH COMPLIED WITH COMPLIED WITH NOT COMPLIED WITH COMPLIED WITH COMPLIED WITH NOT COMPLIED WITH COMPLIED WITH COMPLIED WITH NOT COMPLIED WITH COMPLIED WITH COMPLIED WITH NOT COMPLIED WITH COMPLIED WITH COMPLIED WITH NOT COMPLIED WITH COMPLIED WITH COMPLIED WITH NOT COMPLIED WITH COMPLIED WITH COMPLIED WITH NOT COMPLIED WITH COMPLIED WITH NOT COMPLIED WITH NOT COMPLIED WITH COMPLIED WITH NOT COMPLIED WITH NOT COMPLIED WITH COMPLIED WITH NOT COMPLIED WITH NOT COMPLIED WITH COMPLIED WITH NOT COMPLIED WITH NOT COMPLIED WITH COMPLIED WITH NOT COMPLIED WITH NOT COMPLIED WITH COMPLIED WITH NOT COMPLIED WITH NOT COMPLIED WITH COMPLIED WITH NOT COMPLIED WITH NOT COMPLIED WITH COMPLIED WITH NOT COMPLIED WITH NOT COMPLIED WITH COMPLIED WITH NOT COMPLIED WITH NOT COMPLIED WITH COMPLIED WITH

A) Add a SUB PWB ASSY (YB20820F1) on the DIGITAL BOARD ASSY as shown below. #500SPACER: PU59915-105(100pcs/1sheet)

ASSY No.

#500 SPACER R1478

YB20820F

#500 SPACER
B) Add a SUB PWB ASSY (YB20820F1) on the DIGITAL BOARD ASSY as shown below. #500SPACER: PU59915-105(100pcs/1sheet)
REMOVE THE WIRE AT THIS POINT.
2. Countermeasure for DR-MH20, DR-MH30, DR-MX1 Check the the DIGITAL BOARD ASSY No. Then select the relevant coumtermesure from the below table according to the the DIGITAL BOARD ASSY No. Then do the relevant cuontermesure as shown below.
MODELS DR-MH20SUS DR-MH30SUS DR-MH20SUC DR-MH30SUC DR-MH20SUJ DR-MH30SUJ DR-MH30STW DR-MH20SE DR-MH30SE DR-MH20SEK DR-MH30SEK DR-MH30SER DR-MH20SEF DR-MH30SEF DR-MH30SAA DR-MH30SAG DR-MH30SAX DIGITAL BOARD ASSY No. LPA10247-01A, B, C LPA10247-01D LPA10247-01E LPA10247-01F ~ LPA10247-03A, B, C, D COUNTERMESURE IN SERVICE A B C NEED NOT A CARRIED OUT COUNTERMESURE IN FACTRORY FOR VIDEO CLOCK FOR AUDIO CLOCK NOT COMPLIED WITH NOT COMPLIED WITH NOT COMPLIED WITH NOT COMPLIED WITH COMPLIED WITH COMPLIED WITH NOT COMPLIED WITH COMPLIED WITH
NOT COMPLIED WITH NOT COMPLIED WITH

LPA10247-03E

LPA10247-03F

COMPLIED WITH

NOT COMPLIED WITH

LPA10247-03G ~

NEED NOT

DR-MX1SUS

LPA10247-05A, B, C LPA10247-05D ~

C NEED NOT

COMPLIED WITH COMPLIED WITH
NOT COMPLIED WITH COMPLIED WITH
A) Add a SUB PWB ASSY (LPA20044-001A) on the DIGITAL BOARD ASSY as shown below. #500SPACER: PU59915-105(100pcs/1sheet)

LPA20044 -001A

B) Add a SUB PWB ASSY (LPA20044-001A) on the DIGITAL BOARD ASSY as shown below. #500SPACER: PU59915-105(100pcs/1sheet)

R1420 R1414

C) Add a SUB PWB ASSY (LPA20044-001A) on the DIGITAL BOARD ASSY as shown below. #500SPACER: PU59915-105(100pcs/1sheet)