Yamaha RX-797, Руководство по обслуживанию

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A B C D E F G H
1
2
3
4
5
6
RX-797
28
■
PRINTED CIRCUIT BOARD
Lead Free Solder Used
MAIN (2) P.C.B.
(Side A)
MAIN (4) P.C.B.
(Side A)
R, L models
MAIN (3) P.C.B.
(Side A)
POWER TRANSFORMER (U, C, A, G, E)
or MAIN (5)
W291
(R, L)
A
C
OUTLETS
MAIN (8)
W295
MAIN (3)
CB271
MAIN (1)
W104
MAIN (2)
CB258
2
CH2
2
CH1
MAIN (1)
CB132
MAIN (1)
CB128
POWER
TRANSFORMER
OPERATION (1)
W802
FUNCTION (2)
CB605
POWER TRANSFORMER
VOLTAGE
SELECTOR
MAIN (2)
CB257
VOLTAGE SELECTOR
240V
220V
110V
120V
1–2/5–6
2–3/6–7
3–4/7–8
4–5/8–1
SW291
MAIN (8) P.C.B.
(Side A)
MAIN (5) P.C.B.
(Side A)
MAIN (2)
CB252
AC IN
WH BE
Circuit No.
J252
CB253, 254
F251
U, C
X
O
O
X: NOT USED
O: USED/APPLICABLE
R
O
X
X
A
O
X
X
G, E
X
O
O
L
O
X
X
MAIN (2)
Circuit No.
CB293, 294
F291
J298
R
O
O
X
X: NOT USED
O: USED/APPLICABLE
L
X
X
O
MAIN (5)
Point
w
CH 1 : (+) of C272
CH 2 : Collector of Q271
↑
AC POWER ON
(Connect the power cable)
↑
AC POWER OFF
(Disconnect the power cable)
↑
AC POWER ON
(Connect the power cable)