Yamaha A-S2100 Service Manual page 68

A B
A-S2100
1
FRONT (1)
(Side A)
FUNCTION (1)
(CB508)
2
+12D
MG
+5S
I_VOL
MG
MVOL+
MVOL-
+5D
LED_MT
3
NC
NC
W404B
W403B
4 FRONT (7)
FRONT (2)
(Side A)
5
+12D
1
MG
+5S
I_VOL
6
MG
MVOL+
MVOL-
9
7
68
C D
FUNCTION (1)
(CB509)
CB406
CB405
13 12
24 1
W406B
W405B
(W405A)
VOLUME
FRONT (3)
AUDIO MUTE
indicator
W402A
W422
chassis
M
E F
• Semiconductor Location
Ref no. Location Ref no. Location Ref no. Location
D403 D6 D413 F6
D404 G6 D414 C3
D405 F6 D415 D3
D408 F6 D416 D3
D409 F6 D422 I3
D410 F6 D423 I3
D412 F6 D424 I3
FRONT (15)
(W419)
CB409
IC407
5
8
IC408
8 5
1 4
IC409
1 4
8 5
1 4
CB411
W407B
FRONT (8)
(W407A)
METER unit
FRONT (4)
(Side A) (Side A)
INPUT indicators
PHONO
TUNER
LINE 1
CD
BAL
G H
Ref no. Location Ref no. Location Ref no. Location
D426 H3 D435 F3 IC406 H3 Q411
D427 H3 D436 F3 IC407 G3 Q414
D428 H3 IC401 B6 IC408 F3 Q415
D430 G3 IC402 D3 IC409 F3 Q416
D431 G3 IC403 I3 IC412 G3 Q417
D432 G3 IC404 I3 Q404 E3 Q418
D434 F3 IC405 H3 Q410 H3 Q419
IC404
8 5
IC406 IC405
8 5 8
5
1 4
IC412
8 5 1 4 1 4
1 4
CB410
CB402 CB404
FRONT (9)
METER unit
(W408) FRONT (10)
(W409)
FRONT (5)
(Side A)
AUDIO MUTE
+5D
LED_CD
LED_TU
LED_LINE1
LED_LINE2
LED_BAL
LED_PHO W403A
LED_MDIR
MAIN DIRECT
LINE 2
I J
Ref no. Location Ref no. Location
H3 Q420 E3 Q430 E3
F3 Q421 E3 Q435 H3
F3 Q423 F3 Q436 G3
H3 Q424 E3
H3 Q427 F3
E3 Q428 E3
E3 Q429 E3
FRONT (13)
(W412B)
+5LED_PWR
LED_PWR_RET
MG
REM
+5M
N_HP_DET
RY_HP
IC403
MG
8 5
-12D
1 4 HPL
HPGND
HPR
FRONT (12)
(W411A)
CB407
FRONT (11)
(W410)
FRONT (6)
(Side A)
PHONO
MM MC
W404A