Yamaha CRX-E500 Service Manual page 8

CDC-E500
b. Pull out the drawer to open it fully. (Fig. 5)
I MAIN P.C.B. OPERATION CHECK
1. Remove the CDC Mechanism Unit.
2. Disconnect cable from Connector (CB6) in Fig. 2.
At this time, unwind this cable wound around the ferrite core.
3. Remove 4 screws fixing the MAIN (2) P.C.B. to the chassis.
Remove 4 screws fixing the MAIN (1) P.C.B. to the rear panel.
4. Remove the MAIN (1) P.C.B. and the MAIN (2) P.C.B. together.
5. Place the MAIN (1) P.C.B. and the MAIN (2) P.C.B. on the blocks.
6. Reinstall the CDC Mechanism Unit.
7. Using extension cables, make connections.
1 Bancard
2 C & C assembly set : 4P 450mm and 8P 450mm (AAX28730)
8. Using a lead wire, connect the grounding of the pin jack (PJ1) and the system connector (JK1) to the rear panel.
(If it is left unconnected, the grounding floats and the unit may fail to function properly.)
8
: 16P 420mm (V6565800)
1
2
(Drawer opened fully)
MAIN (2) P.C.B.
MAIN (1) P.C.B.
CB6
Block
16P
CB1
CB4
8P
CB200
CB2
CB3
4P
Fig. 5
Block