Preparation For Servicing - JVC TV-20F242 Service Manual

Basic Servicing Position (In case of needing to check on all blocks)
1. Unplug the connector CP502, CP4201 and CP4202, then remove the TV/VCR Block from the set.
2. Unplug the connector CP810, CP820 and CP805, then remove the Main PCB from the VCR Block.
3. Connect as shown in the below figure using the Service Fixture.
• Connect the Syscon PCB to the Main PCB with the cable X-JG162A and X-JG162F.
• Connect the Syscon PCB to the CRT PCB with the cable X-JG162Y.
4. Remove the Operation PCB from the set, then connect it with the Syscon PCB.
If necessary, connect CP4202 (Front A/V Jack Input Terminal)
5. Short circuit between TP1001 and Ground with the Short Jumper.
The EOT, BOT and Reel Sensor do not work at this moment.
6. At that time, the STOP/EJECT button is available to insert and eject the Cassette Tape.
Short Jumper
To Ground

PREPARATION FOR SERVICING

Syscon PCB
TP1001
Front Cabinet
CRT PCB
CP805
Main PCB
X-JG162Y
X-JG162F
CD850
CD601
CP4201
Operation PCB
CP820
CP810
X-JG162A
CD810
CD757
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