JVC SR-VS20E, Service Manual

Page: 13 / 149

1-8
1.8 SERVICE POSITIONS
The servicing locations for use in troubleshooting or servic-
ing of the set are provided separately for the VHS and DV.
I SERVICE POSITIONS <VHS SIDE>
II
SERVICE POSITIONS <DV SIDE>
1.8.1 Service position <VHS SIDE>
<Removal>
(1) Remove the top cover and bracket.
(2) Remove the front panel assembly.
(3) Remove the MAIN board assembly together with the
mechanism assembly.
Fig. No.
Screw Hook, etc. Connector Note
(Page)
(1) Top cover, COM1 9 2 + 1
0 —
Bracket (1-3) (No.1-9) (L1,2)
(2) Front COM2 0 8 2
panel (1-3) (L3) (CN7507/ —
assembly CN3011)
(3) Main V2, V3 13 0 5
board (1-6) (No.4-16) (CN5321/
assembly CN5322/
(etc.) CN3014/ —
CN703/
CN2601)
A
1
2
6
7
3
4
5
B
E
Front panel assembly
PATCH CORD
PTU94017B
CN7507
Main board assembly
CN3011
CN3014
CN703
CN2601
CN7508
CN7509
CN5322
CN5321
CN3701
CN3501
C
D
CN1002
Fig. 1-8-1 Service position <VHS side>
Table 1-8-1
< Installation >
(1) Stand up the bottom chassis assembly so that the DV/
Regulator side is in the lower position.
(2) Connect the PATCH CORD to the three FPCs then con-
nect CN3014, CN7508 and CN7509.
(3) By connecting a total of two FPCs and wires (CN703/
CN2601), carry out the installation so that the Main board
assembly comes in the upper position.
Point: • Take care that the FPCs and wires are not
subjected to stress in this positioning.
(4) Connect the PATCH CORDS to the two FPCs of the front
panel assembly, then connect the CORDS to the
CN7507/CN3011.
For the PATCH CORD is required, see Table 1-8-3.