BUSH VCR860
Service Manual

BUSH VCR 860 NVP
Matrix
Item See Model Book
6 6 6 Deck Exploded View ............................................................... Matsui VXA 1105 Deck Alignment ....................................................................... Matsui VXA 1105 Deck Adjustment ..................................................................... Matsui VXA 1105

1
� Connect the Main PCB to the FE Head with the cable JG163. 3. Short circuit between TP1010 and TP1011 with the cable JG154. (Refer to MAJOR COMPONENT LOCATION GUIDE) 4. The EOT, BOT and Reel Sensor do not work at this moment. 5. At that time, the STOP/EJECT button is available to insert and eject the Cassette Tape.

Electrical Adjustments
3. ADJUSTMENT PROCEDURE Read and perform these adjustments when repairing the circuits or replacing electrical parts or PCB assemblies. CAUTION When replacing IC�s or transistors, use only specified silicon grease (YG6260M). (To prevent the damage to IC�s and transistors.) 3-1: PG SHIFTER Fig. 3-1-A CONDITIONS MODE-PLAYBACK Input Signal-Alignment Tape (JG001F) INSTRUCTIONS 1. Playback the alignment tape. (JG001 F) 2. Press the PLAY button on the set for more than 3 seconds. If the indicator ATR disappears, the adjustment is finished. (If the above adjustments doesn�t work well:) 1. Connect CH-1 on the oscilloscope to TP4001 and CH-2 to Pin 19 of J4501. 2. Press the PG AUTO key. (JG155) 3. While the ATR indicator is flashing, press the PG MANUAL key. (JG155) 4. Adjust the Tracking +/- key until waveform of the oscilloscope measures 6.5 ± 0.5(H) at both leading and trailing edges. (Refer to Fig. 3-1-A, B) 5. Press the Tracking Auto key. Fig. 3-1-B How to use the Servicing Fixture 1. Remove the Main POB from the Deck Chassis. 2. Connect as shown in the below figure using the Service Fixture. � Connect the Main PCB to the Mode Switch with the cable JG150. � Connect the Main PCB to the Head Amp PCB with the cable JG158 and JG159.

NOTE: If you connect with the Jig Cable, the Audio is not heard on Hi-Fi.

NOTE: If there is an error in the data, the unit may indicate malfunction. INSTRUCTIONS

This area is intentionally left blank.
1. Turn on the POWER and press both FF key and CH UP key on the set simultaneously for more than 2 seconds. The Initial Set Mode indicator will appear and the Address will blink. (Refer to Fig. 1) 2. Press the SET +/- button on the remote control to modify the address and check the data of each addresses are correct. (Refer to Table 1) 3. After checking, turn off the Power. (If the wrong data is input) 4. Press the SET +/- button on the remote control to set to the address of the wrong data, then press the ENTER button. The data will bink. (Refer to Fig. 1) 5. Press the SET +/- button on the remote control to set to the correct data, then press the ENTER button. (Refer to Table 1) 6. Repeat the above steps 4 and 5 and input the data into the each Address. 7. After the data input, turn off the Power.

Recommended Safety Parts
Item
UN4001 R512 R520 R525 R529 R537 R1087 C504 C505 C506 D504 D512 D513 D514 D515 D516 D517 D522 IC501 IC502 IC1004 Q501 Q503 Q506 Q507 Q509 Q511 L501 T501 CD501 F501 TU6001

Part No.
A4C101B500 R3X28A563J R3X181820J R3X151010J R61584221J R615U45R6J R635812R7J P2222B104K CB3LE0ML3M CB3930ML3M D410S1NB60 D28T1DQ040 D13TGMA020 D28T1DQ090 D13TGMA020 D13TGMA020 D9JT01501B D9J01300B2 I0Q90431L0 I0QA97810F I05S07291S TBWT009260 TC3T042040 TCB0049080 TBWT009260 T8WT009260 0002500450 029X000070 0481290064 1206635806 080PT1R602 0162607004

Description
CYLINDER UNIT ASSY R, METAL OXIDE R, METAL OXIDE R, METAL OXIDE R, FUSE R, FUSE R, FUSE CMP CC CC DIODE DIODE, RECTIFIER DIODE, SILICON DIODE, RECTIFIER DIODE, SILICON DIODE, SILICON DIODE, ZENER DIODE, ZENER IC IC IC TRANSISTOR, SILICON TRANSISTOR, SILICON TRANSISTOR, SILICON TRANSISTOR, SILICON TRANSISTOR, SILICON PHOTO COUPLER COIL, LINE FILTER TRANSFORMER, SWITCH CORD AC BUSH G2N 6FEET FUSE RF UNIT A4C101B500 56K OHM 2W 82 OHM 1W 1.0 OHM 1W 220 OHM 1/4W 5.6 OHM 1/4W 2.7 OHM 1W 0.1UF 250V AC 0.0033 UF 250V 0.0033 UF 250V S1NB60 21DQ04-TA2B1 GMA-02-BT 21DQ09-TA2B1 GMA-02-BT GMA-02-BT UZ-15BCB-TA UZP-30BK2 NJM431L NJM7810FA TA7291S 258926-AA 2SC4204-AA 2SC4908 2S9926-AA 2S9926-AA TLP621(GR) SS10V-03330 8129006 06635806 21801.6 TMLB2-102A

Fig. 1
INI ADDRESS DATA INI INI EF 96 INI INI INI F2 05 INI F3 40 INI F4 00 INI F5 00 INI F6 3D INI F7 9B INI F8 13 INI F9 62 INI FA E0 INI FB 6D INI INI INI FE

ED EE 01 00

FO Fl 00 02

FO FD 0F

DE 03

Table 1