Yamaha RX-497, Руководство по обслуживанию

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A B C D E F G H
1
2
3
4
5
6
RX-497
27
■
PRINTED CIRCUIT BOARD
Lead Free Solder Used
MAIN (2) P.C.B.
(Side A)
AC OUTLETS
MAIN (3)
CB295
OPERATION (12)
CB282
(A, G, E, L models)
POWER CABLE
PO
WER
TRANSFORMER (U
, C
, A, G, E)
or MAIN (4)
W291
(R, L)
Circuit No.
J252
CB253, 254
F251
TE251
W293
ST254
U, C
X
O
O
O
X
X
X: NOT USED
O: USED/APPLICABLE
R
O
X
X
O
X
X
A
O
X
X
X
O
O
G, E
X
O
O
X
O
O
L
O
X
X
X
O
O
MAIN (2)
R, L models
MAIN (4) P.C.B.
(Side A)
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
PO
WER TRANSFORMER
Circuit No.
CB293, 294
F291
J291
R
O
O
X
X: NOT USED
O: USED/APPLICABLE
L
X
X
O
MAIN (4)
PO
WER
TRANSFORMER
FUNCTION (1)
W506
FUNCTION (2)
CB604
3
XM P.C.B.
(Side A) Lead Free Solder Used
XM P.C.B.
(Side B) Lead Free Solder Used
U, C models
U, C models
Point
e
(Pin 28 of IC1)