Service manual

PWMP{9}
C491
.1
VPWM
+
-
U42B
LM358
5
6
7
8
4
R317 4.7K_NC
R318 0_NC
C490
.1
R319
0
R320 47K
R323 4.7K
J11
1
2
3
4
5
6
7
8
9
10
11
12
13
R321
10K
V12
Vsub
V12IN
PWM2
PWM1
For 32" Power
For 37" Power
C511
10U_NC
1
2
BACK LIGHT ADJ
viii. AUDIO AMP MUTE ON/OFF
The control signal of AMP MUT was outputed from MUTE1 and MUTE2 I/O port of PW328. MUTE2 will
control the RC JACK Audio Output Mute. (For preventing from abnormal sound occurred when turn on TV
set, Audio Amp Mute will act in first and last procedure)
AUD__L
AUD__R
Lo=MUTE
+
C336 10U
R199
10K
+
C33722U
L80 SBK16-102
+
C338 10U
J6
EARPHONE OUT
1
2
3
4
5
L82 SBK16-102
C339101
L83 SBK16-102
R198 0
C340101
C341101
R200 10K
Q13
3904
C
E
B
L81 SBK16-102
+
C33522U
AMP_MUTEP{13}
AUDL P{13}
AUDR P{13}
MUTE1P[14]
Vsub
AUDR
AUD__R
Vsub
AUD__L
AUDL
Hi=MUTE
AUDIO OUTPUT
C312
10U
1 2R1831K
R18710KR18610K
Q10
MMBT3904
B
E C
R1921K
Q12
MMBT3904
B
E C
C325
471
R19510K
CON8
HSP-242V2
1
3
2
C315
471
R185
470K
C323
10U
1 2
R194
470K
MUTE2P{14}
Vsub
LINEL
LINER
ix. THE THREE BIRDS LOGO
The ViewSonic Logo will show up in 6 seconds after program execution, then disappeared. All the
POWER ON procedure will be finished when AMP Relay sound be heard and screen displayed.
ViewSonic Corporation Confidential - Do Not Copy N4261w-1M
10