Unplug the connector CP301, CP353 and CY757, then remove the TV/VCR Block from the set.
Unplug the connector CP810, CP820 and CP850, then remove the Main PCB from the VCR Block.
Connect as shown in the below figure using the Service Fixture.
• Connect the Syscon PCB to the Main PCB with the cable JG162A and JG162H.
• Connect the Syscon PCB to the CRT PCB with the cable JG162Y.
Remove the Operation PCB from the set, then connect it with the Syscon PCB.
If necessary, connect CP353 (Earphone Input Terminal)
Short circuit between TP1001 and Ground with the cable JG154.
(Refer to MAJOR COMPONENTS LOCATION GUIDE)
The EOT, BOT and Reel Sensor do not work at this moment.
At that time, the STOP/EJECT button is available to insert and eject the Cassette Tape.
PREPARATION FOR SERVICING
Basic Servicing Position (In case of needing to check on all blocks)
1.
2.
3.
4.
5.
6.
IF PCB
Deck Chassis
Head Amp PCB
To Main PCB
(CD820)
JG162H
JG162Y
CP810
CP850
CP820
Operation PCB
JG162A
To CRT PCB
(CD850)
To Main PCB
(CD810)
Syscon PCB
Servicing Position for Main PCB (In case of needing to check on Main PCB)
• It's possible to get the Servicing Position without the extension Jig if you arrange the unit as shown below.
(But L503 connection can not be done, Degause circuit will not operate.)
• Be careful for the short circuit.
VHS Tape
(Put the Tape under the FBT.)
Main PCB
L503 (2 Pin)
JG154
To Ground
TP1001
C5-2
