Operation Check Of Main P.c.b; When Checking The P.c.b. - Yamaha RX-V750 Service Manual

5. Operation check of MAIN (1) P.C.B.
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a. Remove 2 screws ( ). (Fig. 12)
* Arrow marks ( ) are printed to identify the screws to be
removed.
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b. Remove 3 screws ( ) and 2 screws (
c. Loosen the harness fixture fixing the cable.
d. Raise the Amp Unit from the front toward the back.
e. Put an insulating sheet under the Amp Unit before per-
forming any checks for proper operation.

When checking the P.C.B.:

• Reconnect all cables (connectors) that have been disconnected.
• When connecting the flat cable, use care for the polarity.
• The P.C.B. removed from the rear panel does not work because
its grounding is loose. Be sure to connect the ground of each
P.C.B. to the chassis or GND with a jumper wire or the like.
9
Fig. 12
o
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!1
). (Fig. 13)
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9
Fig. 14
RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760
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11 11
10
Fig. 13
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