Service manual

XL-HP505
4 – 2
+B10
+B10
+B10
+B10
+B3
+B10
B
10
+B3
AN80T53
MULTI REGULATOR
235671 4
+B4(8V)
2A 125V
2A 125V
4A 125V
4A 125V
D842-D845
POWER
TRANSFORMER
RELAY
DRIVER
AC_RLY
P_IN
AC_RLY
T_SOL
T_MOTOR
VOL_JOG
PROTECT
+B8(D_5V)
+B7(A_5V)
+B7(A_5V)
5
V)
V)
+B9(SW_+5V)
+B_PROTECT
5
V)
13V SW VCC GND 5.1V 8.5V 10V
VL+
VL–
GND
SMUTE
TIME LED
SP_RLY
T_REC/PLAY T_BIAS
VLOAD
VOL_LED
P_IN
AC 120V,60 Hz
SUPPLY CORD
AC POWER
SP DET
–VF
T.F
VDD
TRANSFORMER
POWER
REGULATOR
VOLTAGE
UNSW_5.6V
AN78L05
VOLTAGE
REGULATOR
VR701
VOLUME
KEY
ASS'Y
MECHANISM
TAPE
DRIVER
4A 125V
R-OUT
L-OUT
STK412-000
POWER AMP.
L
R
VL–
VH–
VL+
VH+
VF1
VF2
M971
RESET
SYSTEM MICROCOMPUTER
4.19403MHz
REMOTE SENSOR
VDD -20dBATT
+B10
+B10
LED701
LED708
+B5
VDD
+B3
FAN MOTOR
FL DISPLAY
CE CLK DI DO
TO CD SECTION
RESET
AVDD
REMOCON
HEADPHONES
SUB WOOFER
PRE-OUT
SPEAKER TERMINAL
M
SYSTEM
MUTE
8
11
6
1
14
18
7
48
32 413128
5
2
4443
242115121176
10
17 18 19 2034
2121 4445
78
69
80
83
84
2
3
1
31
30
29
47
53
56
41
42
45
5
79
36
38 46 254059 13
33
34
39
12 16
100
(SUB)
(MAIN)
MOTOR/
DRIVER
SOLENOID
A_+10V
LD_+8V
SW701-SW705
SW709-SW728
IXA002AW
(Serial No.31000001~402XXXXX)
IXA007AW
(Serial No.402XXXXX)
IXA020AW
(Serial No.402XXXXX~)
FL701
RX701
Q906
XL700
Q701,702
Q712~715
Q904
Q901
IC901
F802
Q604
Q603
IC854
Q841
Q851
Q801
F804
F803
IC851
D802
D801
F801
F805
PT801
JK953
JK701
SO901
RL914
Q905
Q711
Q703
RL841
RELAY
IC701
PT841
RELAY
IF
Figure 4-2 BLOCK DIAGRAM (2/3)