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HCD-XB88AVK/XB88K
Q Q
3 7 6 3 1 5 1 5 0
– POWER SECTION –
REAR
CENTER
POWER AMP
IC201
FRONT
1
FRONT
6
T E
L
1 3 9 4 2 2 9 6 5 1 3
DBFB
D
STK MUTE
MAIN
SECTION
(Page 22)
R RELAY
CD POWER
AU/D5V SW
w w w
POWER ON/OFF
09
POWER AMP
IC601
REAR
RY401
1
10
18
13
CENTER
6
OVER LOAD
DET
Q601,651
THERMAL
DET
Q670,671
THP670
RY402
10
OVER LOAD
6
DET
Q201
2
PROTECTOR
Rch
Rch
1
Q323
PROTECT
Rch
MUTE
SWITCH
Q331
D5V
SWITCHED
D5V
CD REG
SW
Q904
+5V
+5V REG
IC902
Q905
D905
3
1
+7V REG
IC903
+5V REG
D7V
3
1
Q906
+7V, –7V REG
Q907
IC901
A+7.5V
1
+7.5
V
CC
A–7.5V
10
–7.5
EN
V
EE
4
Q901
POWER B+
+12V REG
POWER B–
IC904
x
a o
+12V
3
1
.
i
ST10V
3
1
PRO-LOG 10V
+10V REG
IC905
– 23 –
http://www.xiaoyu163.com
REAR
–1
CENTER
–2
RELAY
DRIVE
Q404
FAN MOTOR
DRIVER
Q961, 962
Rch
FRONT
–1
RELAY
DRIVE
Q403
RELAY
CONTROL
Q402
Rch
HP / SP
IC301
SWITCHING
Q
Q
3
7
Q401,405
7
4
SWITCH
Q301
RECT
D302,303
VF
VF
2
RECT
D901
9
UNREG
RECT
+B
–12V
D110,111
VF REG
RECT
VFDP
Q941
D104,105
RECT
D101
SURR B+
u 1 6 3
y
RECT
D102
SURR B–
http://www.xiaoyu163.com
2
4
8
9
9
TM402
SURROUND
SPEAKER
REAR
CENTER
M901
M
FAN
UNREG
MOTOR
–12V
TM401
FRONT
SPEAKER
J760
PHONES
6
3
1
5
1
5
0
8
9
XB88K
XB88AVK
T501
T901
POWER
POWER
TRANSFORMER
TRANSFORMER
XB88AVK
VOLTAGE
• R CH : Same as L ch
SELECTOR
m
S901
• SIGNAL PATH
: FM
c o
.
AC
IN
– 24 –
2
8
9
9
2
4
9
8
2
9
9
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