Schematic Diagram - Akai QX-3700 Service Manual

VI. Schematic Diagram
VIDEO OUT AUDIO OUT
W502
V2 V1 R L
TUN
R714
CE
8K2 DI
68K DO GR5
R711 CLK GR4
100P GR3
C715 GR2
GR1
100
VDD
10U LED5
R713
C706 LED4
R712
+12V 68K LED3
R709 LED2
100K
LED1
R724
GND
OSC
100p 100K
10U
C729 100 C732
N700A 10U R715
10U
-12V C707
C701 R704
C703
OT 6K8 10U
R705
10K C731
IN
10U VCDR
R707 6K8
C702
AUXL
R706 10K
FROM VCD
10U
TURN
OUTPUT
TUNL
R719 6K8
R 10U
C708 PT2314
AUX IN 10U N702
R718 10K
R716 6K8
VCDL
L
C709 2U2
R717 10K
C719
10U
R703 6K8
C704
R702 5K6
10U
C705
R701 5K6 R722
5K6
R700 6K8
5K6
R723
C108~C111
GT
103X4
FROM
F3.15A BF40C6A
TUNER
250V VD113
W102
F100
P102
F3.15A 250V
T01 F101
W100 P100
GT GT
W300
P301
GT
GT
C408
22V
GT VD401
P300
5V1
VD402
XP300
GT
VFD600
25100-3A08
DGND
K601 AN
KS12 IN4148
KS11
KS10 K600 AN
VD600
KS9
IN4148
KS8
AN AN
KS7 K603 K604
VD601
+5V PT16311
KS6
N600 IN4148
KS5
KS4 K606 AN
VD603
KS3
IN4148
KS2
KS1
VD602
VDD
R601
K1
10K
P505 P501
W505
180
R710
8
5
REF
6
7
JK2
N701B
R721 JRC4558:A
47K
4
3
1
2
N701A
JRC4558:A
+12V
L7812CV
2200U/25V
GT 220U/25V N103
C106 C115
100/3W C116
C137
R107 100U
104
C138 V102
2N5401
104 220U/25V
2200U/25V 470/3W
R106
IN4007
VD100 12V
C126 VD112
103 L7805CV
C124
IN4007
VD101 104
C127 N100
103
IN4007
VD103 1000U
C128
L7808CV
103
IN4007
VD102 N101
C129
103 C123
1000U
IN4007
VD104
VD110
C130
IN4001 10K
103
IN4007
R111 R112
VD105
100
C131 C9014
103 V100
IN4007
VD107
VD108 L7805CV
C132
103
IN4007
IN4007 N104 C53
VD106 100U/16V
IN4007
C133 VD109
C43 C52
103
470U 100U/25V
+5V
N601
24C02
89C58
KS5 N500
1
P10
2
P11
KS4 DI 3
P12
AN
K605 DO 4
P13
5
P14
KS2 6
P15
K602 AN 7
P16
8
P17
KS1
9
REST
10
CE
4K7X8 11
MENU
R513 12
REMIN
13
STB
RP200 14
VOL1
EC-16B 15
VOL2
16
MUTE
17
STAN
X500
12MHZ
18
X1
19
X2
30P 30P
C505 C504
V502 C503
C9014 10U
10K IN4148
R500 VD500
+5V
+12V
-12V
SW
CON26P
+5V
L R
C114
100U
10U
C401
100
R110
C100
IN4148
4U7
VD111
LM1876TFA
C9014 +22V
V101 -22V N102A
2
8 6
CPU POWER 3
7
9
5
4
DGND
24K
R104
1K
47u
R102
C103
- 9 -
TO VCD MPEG
DGND
39 REMO REM
P00
38 CLK
P01
37 STB
P02
36 DO
P03
35
P04 W503
34
P05 4K7
33
P06
32
P07 R503
21 4K7
P20
22 R502
P21
23
P22
4K7
24
P23
R501
25
P24
26
P25
27
P26
28
P27
40
VCC
31
VCC
N502A
30
ALE/P
JRC4558
29
PSEN
3
20 1
GND
2
C501
103
JRC4558
N502B
LEVEL 10U
C720
W500 100P
TO VCD MPEG C502
470K
R508
SYSTEM CONNECTION
LCH
RCH
10U
C400 CON26P2
JRC4558:A FC-26P
2
N400A
10U
4 1 C406
C403
3 100P W104 P104
LOUT
L301
LGND
RGND
1UH
ROUT
3K3 R405
DGND
5 JRC4558:B +12V
8 C407
6 100P R307
7
220K
68K
3K3 R306
R406
47U V300
C404 A1015
220U
C303
LM1876TFB
N102B
15
13
1
12
10
14
39K
R305
24K
R105
1K
C102
R103
47u
P503
R207 LED
1K
R212
VD200
10K VD204
180
LED
R214
180
V200 LED
C9014
R215
VD202
R216
180
LED
VD205
C9014
180
V202 10K LED
R217
VD203
V201
180
C9014 LED
R218
VD201
+5v C204
GND 47U
STAND
+5V
VOL2
VOL1 C203
REM 104
MENU
DGND 100
P201 W201 R221
LCH SPEKEAR OUT RCH PHONES
R301
C301
4.7
104
4.7
4.7 R302
C302
R300 R303
104
1UH 4.7
L302
RL300
HRS2H-S
C201
223
R203
680
560
IN4148
R202
VD300
C200
223
560
R201