Block Diagram - Amp Section; Ao Y - Sony HCD-NXM4D Service Manual

Q Q
3 7 6 3 1 5 1 5 0
7-6. BLOCK DIAGRAM – AMP SECTION –
CN501
FL
TUNER/TAPE
FR
DECK
E
SECTION
(Page 33)
SW
DBFB FEED BACK
CN508
STK MUTE
FRONT RELAY
TUNER/TAPE
F
DECK SW RELAY
SECTION
PROTECT
(Page 33)
HP SW
FAN CTL
T E
L 1 3 9 4 2 2 9 6 5 1 3
FAN
FAN
CN601
SL IN
MAIN O
SR IN
SECTION
(Page 34)
C IN
RELAY
w w w
HCD-NXM4D
IC501
POWER AMP
18
R-CH
19
-PRE
8
Q503
-VH
-VH +VH
SUPP
D501
Q507,508
STK
MUTE
SWITCH
Q858-861
FAN
MOTOR
DRIVE
IC601
SURROUND AMP
8 3
R-CH
13 15
Q603 Q601
PROTECT PROTECT
SWITCH SWITCH
x a o
y
. i
http://www.xiaoyu163.com
10
11
Q505
OVER
LOAD
DETECT
22
21
Q506
+PRE
OVER
9
LOAD
Q501,502
DETECT
TEMP
DETECT
D507
Q868,869,890
Q854
MUTE
MUTE
CONTROL
SWITCH
Q854
Q Q
IC850
3 7 6
OVER CURRENT PROTECTER
Q850-852
1 OCP
SPEAKER
PROTECT
4
CT
RELAY
3 OUT DRIVE
VP
2
SL SP
C SP
Q610
PROTECT
RELAY
DRIVE
OVER DC
u 1 6 3
DETECT
.
OVER DC CURRENT DETECT
35 35
http://www.xiaoyu163.com
8 9 2 4 9
R-CH
Q509
RELAY
DRIVE
Q510
R-CH
RELAY
DRIVE
3 1 5 1 5 0 8 9 2
m
• R-ch is omitted due to same as L-ch.
c o
• Signal path
F
: AUDIO
HCD-NXM4D
8 2 9 9
TM502
FRONT
L
R
SUB WOOFER
SPEAKER
SURROUND
OUT
L
R
CENTER
J1063
R-CH
PHONES
4 9 8 2 9 9