Service manual

– 15 –
XL-HP500
Figure 15 BLOCK DIAGRAM (3/3)
Q905
–VF
VF2 VF1
Q801
IC855
+B2
+B3
+B4
-B2
+B7
+B3
+B10
-
12
13
41
19
Q701
R
L
+B10
RX701
REMOTE
SENSOR
D803,
D804
D802
RL914
JK951
HEADPHONES
M971(212-3)
FAN
MOTOR
M
Q906
Q702
Q603
Q604
IC901
STK402-071
POWER AMP.
F804
2A 125V
VOLTAGE
REGULATOR
F803
2A 125V
F801
4A 125V
F802
4A 125V
R-OUT
L-OUT
Q901~
Q904
CLK
SO901
SPEAKER
TERMINAL
34
C
/PLAY
VLOAD
RESET
+B10
+B10
+B10
+B10
+B9
VDD
VDD
VDD
~
CE DI DO
XL700
4.19403 MHz
–
BIAS
AVDD
SW701-SW708
SW712-SW728
KEY
TO CD SECTION
CNP5
CNP6
IC701
IX0574AW
(To Serial No.211XXXXX)
IX0578AW
(From Serial No.212XXXXX)
SYSTEM
MICROCOMPUTER
FL701
FL DISPLAY
29
85
80
35
4514
93
15
92
124567
15
1
8
78
72
51
2
3
1
7
13
9
10
100
33
31
37
15
46
1112 1 0 16 1 7 20 21222324
41
79
38 91 4042
25 13
30
39
34
T.F.
PT801
MAIN POWER
TRANSFORMER
SYSTEM
MUTE
~
~
68 56
~
~
90
86
~
~
~
~
TAPE
MECHANISM
ASS'Y
TO CD
SECTION
RESET
SP DET.
SP RELAY
ON-OFF
FAN MOTOR
DRIVER
IC851
IC852
IC853
IC854
M_+12.6V
LD+8V
+B5
+B10
A_10V
UNSW_5.6V
+B7
+B8
+B9
D_5V
A_5V
SW_5V
IC852
KIA7810AP
CONSTANT
VOLTAGE
REGULATOR
IC851
KIA7812AP
CONSTANT
VOLTAGE
REGULATOR
IC853, IC854
CONSTANT VOLTAGE REGULATOR
VOLTAGE
REGULATOR
KIA7805AP
AN78L05
JK953
SUB
WOOFER
Q841
D855
8
RL841
AC POWER
SUPPLY CORD
AC 120 V, 60 Hz
PT841
SUB POWER
TRANSFORMER
D842~
D845
RELAY
DRIVER
AC_RLY
9