Block Diagram - Amp Section - Sony HCD-GNV99D Service Manual

HCD-GNV99D/GNV111D
Ver 1.1
7-5. BLOCK DIAGRAM – AMP SECTION –
F-L
F-R
STK MUTE
MAIN
H
SECTION
(Page 33)
SL
SR
GNV111D
CENTER AUDIO
SELECT
IC703
CENTER 4
7
2
L+R
3
LINEMUTE
60 59 78
HCD-GNV99D/GNV111D
SECTION
(Page 33)
IC600
POWER AMP
18 11
10
+
14 8
9
12
OVER LOAD
DETECT
MUTING Q618,668
TH629
Q604,606,610
THERMAL
DETECT
Q628,630
VP
CT
4 2
DC DET
D550
OUT
OVER OCP
3 1
LOAD
IC550
OVER CURRENT
OVER LOAD
PROTECTOR
DETECT
Q730,780,770
18 11
10
MUTE +
Q750
14 8
9
MUTE
Q700
19 21
22
MUTE
Q740
12
IC702
POWER AMP
TH630
D720 Q629
MUTE DRIVE
Q722
Q721,720
-VH
70
SYSTEM CONTROL
IC401 (5/6)
DBFB
MAIN
F/B
I
D624
+
RY646
MUTING RELAY DRIVE
Q641, 640 Q644,647
MUTING
CONTROL
Q682,634
Q648
HP-MUTE
GNV111D
RELAY DRIVE
Q763
RY760
RELAY DRIVE
Q762
RY761
61 65 58
34 34
J1103
PHONES
TM600
+
L
-
FRONT SPEAKER
+
R
-
AC CUT DETECT
DISPLAY/POWER
K
SECTION
(Page 35)
M891
DC FAN
FAN DET
FAN MOTOR
FAN-KICK DRIVE M
Q578,585,579
FAN-CTRL
Q581,582
TM700
+
L
-
REAR
SPEAKER
+
R
-
+
CENTER
- SPEAKER
TM701
72 42 66 84
• Signal Path
: AUDIO