Yamaha YHT-196 Service Manual page 19

3. Removal of DIGITAL P.C.B.
a. Remove CB222 and CB223. (Fig. 2)
b. Unlock and remove CB262. (Fig. 2)
c. Remove screw ( ④ ). (Fig. 2)
d. Remove screw ( ⑤ ) and 4 screws ( ⑥ ). (Fig. 3)
e. Remove the DIGITAL P.C.B. which is connected directly to the OPERATION (4) P.C.B. with board-to-board connectors.
(Fig. 2)
4. Removal of OPERATION (4) P.C.B.
a. Remove screw ( ⑦ ). (Fig. 3)
b. Remove screw ( ⑧ ). (Fig. 2)
c. Remove the OPERATION (4) P.C.B. which is connected directly to the MAIN (1) P.C.B. with board-to-board connectors.
(Fig. 2)
DIGITAL P.C.B.
⑦
OPERATION (4) P.C.B.
OPERATION (4) P.C.B.
Fig. 2
⑥ ⑤
⑨
Fig. 3
HTR-2064/NS-B20/NS-C20/NS-SWP20
CB223
DIGITAL P.C.B.
CB222
CB263
CB262
CB264
CB191
④
⑧
CB22
MAIN (1) P.C.B.
Board-to-board
connectors
CB196
CB195
CB192
CB21
Board-to-board
connectors
19