Read Sony HCD-VM330AV Service Manual online
HCD-VM330AV
25
25
7-5.
BLOCK DIAGRAM – AMP Section –
R-MUTE
10
11
6
12
9
8
REAR OUTPUT
SELECT SWITCH
IC307
R-CH
R-CH
DBFB
SWITCH
Q141
DBFB LEVEL
CONTROL
Q142
R-CH
R-CH
POWER AMP
IC501
MUTING
Q517, 518
MUTING
CONTROL
Q522
MUTING
Q501
MUTING
CONTROL
Q502, 516
R-CH
65
STK-MUTE
44
A-MUTE
23
R-MUTE
21
C-MUTE
STK-MUTE
A-MUTE
R-MUTE
C-MUTE
34
FRONT
35
REAR
47
DBFB-ON
48
DBFB-H/L
STK MUTE
STK MUTE
R-CH
MUTING
Q602, 603
MUTING
CONTROL
Q341, 342
MUTING
Q601
POWER AMP
IC602
MUTING
CONTROL
Q343, 344
C-MUTE
Q524
POWER ON
MUTING
Q521
D513
AU +9V
PROTECT
DETECT
Q514
PROTECTOR
Q505, 508
+
D501
OVER LOAD
DETECT
Q506, 507
+
+
+
+
+
+
+
OVER LOAD
DETECT
Q604, 605
OVER LOAD
DETECT
Q606
MUTING
Q519, 520
MUTING
CONTROL
Q523
+
–
+
+
–
+
–
40
R-RELAY
HP CHK
F-RELAY
55
F-RELAY
45
HP-CHK
DC DETECT
Q513, 515
RY502
RY503
RELAY DRIVE
Q504, 510
HP CHK
F-RELAY
RELAY DRIVE
Q503, 509
J501 (2/2)
M391
(FAN)
(FAN)
J502
L
R
SURROUND
SPEAKER
+
–
+
+
–
L
R
PHONE
J503
RY501
DBFB AMP
IC303
SYSTEM CONTROLLER
IC801 (4/5)
D389
D395, 399
• SIGNAL PATH
: TUNER
• R-ch is omitted due to same as L-ch.
FRONT
L-CH
L-CH
L
(Page 24)
REAR
L-CH
L-CH
M
(Page 24)
CENTER
N
(Page 24)
J501 (1/2)
+
+
+
+
D503
FAN MOTOR
DRIVE
Q391, 392
M
CENTER
REAR
FRONT SPEAKER
Click on the first or last page to see other HCD-VM330AV service manuals if exist.