Hitachi CML176SXW, Service Manual

Page: 56 / 59

for AR877/899 : add 513 delete R515,R518
for EM989/JP877 : add R511, R515,R518
R+
R-
VR
L-
HP-S
AGND
AGND
HP-R
L+
HP-L
AUDIO_VOL
V-AUDIO V-AUDIO
V-AUDIO
V-AUDIO V-AUDIO
V-AUDIO
AUDIO_GND AUDIO_GND
AUDIO_GND
AUDIO_GND AUDIO_GND
AUDIO_GND AUDIO_GND
AUDIO_GND
GND_AUDIO
+ C507
4.7uF/16V
R503 20K +
C509 220uF/10V
L501 BLM21P300S
R502
620#
R509
100k
R512 10k
R511 4.7k#
R518 100K#
R515
100K#
R504 20K
R507 BEAD
L502 BLM21P300S
R519 100
R506 20K
R513 0
C51168P
C503 0.33uF
R510
100k
L503 BLM21P300S
R522 10k
R514 20k
R517
1k
R505 20K
C505
0.1u
R508 BEAD
CN302
CON3
1
2
3
+ C502
470uF/6.3V
U501
LM4838
1 8 1
4
2
0
2
3
11 2
5
2
4
28
26
21
15
17
1
8
1
9
3 2
7
1
6
6
4
12
13
10
9
7
2
5
22
V
S
S
1
V
S
S
2
V
S
S
3
V
S
S
4
V
S
S
5
B
e
e
p
R
2
fin
R
2
in
+OUT B
-OUT B
HP-IN
+OUT A
-OUT A
L
2
fin
L
2
in
G
a
in
S
e
l
V
C
C
3 V
C
C
2 V
C
C
1
Mode
Vin A
Vo A
Vin B
VO B
DC Vol
Shutdown
Mute
Bypass
R524 20k
C504 0.33uF
+
C510 220uF/10V
R521
1k
C512
0.1u
C501
0.1u
C506
2.2uF
R520
1k
R501
0#
C508 68P
R516 100
CN301
CON11
1
2
3
4
5
6
7
8
9
10
11
MUTE 2
PD-AUDIO 2,5
VL-750 Sheet 6