When Checking The P.c.b. - Yamaha RX-V661 Service Manual

When checking the P.C.B.:

• Put a cloth over the equipment. Put the P.C.B.s to-
gether with the heat sink upright on the cloth and
check them. (Fig. 7)
• Reconnect all cables (connectors) that have been
disconnected.
• When connecting the flat cable, use care for the po-
larity.
• The P.C.B. removed from the chassis does not work
because its grounding is loose.
Be sure to connect the ground of rear panel, MAIN (1)
P.C.B. (G101) and FUNCTION (3) P.C.B. (G2501) to
the chassis with a ground lead or the like. (Fig. 7)
MAIN (1) P.C.B.
Cloth
Ground lead
G101
G2501
Fig. 7
RX-V661/HTR-6060/DSP-AX761
FUNCTION (3) P.C.B.
Ground lead
17