Service manual
QT-CD250H/W
– 16 –
Figure 16 WIRING OF P.W.BOARD (1/2)
A
B
C
D
E
F
G
H
1
2
34 5
6
• The numbers 1 to 17 are waveform numbers shown in page 19.
2
3
4
5
1
7
8
9
6
12
13
14
15
11
10
16
2
3
1
CNS801
SW809
X-BASS
R808
C810
R809
UN801
R857
SW808
VOLUME
DOWN
R855
SW805
CUE/
PRESET UP
SW801
PLAY/PAUSE/
TUNIG UP
FW802
R847
R841
LCD801
R849
R848
SW802
STOP/TUNING
SW803
REPEAT/
BAND
R246
C247
R245
R248
Q212
C231
R244
R247
C244
Q211
R240
R243
C242
CNP801
C243
R236
R239
R238
C241
R234
R235
SW804
TUNER/
MEMORY
C224
R237
R233
C223
Q210
Q209
R241
C245
R74
R242
R73
R458
SW201
R856
SW806
DOWN/
REVIEW/
PRESE
FW801
SW807
VOLUME
UP
C51
X51
R62
R61
IC51
R60
R59
R58
R55
R13
R76
R51
Q2
C75
R873
R877
COR801
R878
R875
R879
R872
R871
R843
R846
R876
R882
C865
R883
R884
R885
R888
R886
R889
R887
R890
R891
R893
R892
R894
R895
R898
R899
R900
R901
X802
X801
R839
C845
C846
R842
R844
Q805
R825
C832
L801
C853
R835
D806
R862
C847
C848
Q804
C844
R836
R860
R854
C849
C850
R837
R838
C851
C852
R455
R456
D805
D803
R214
R457
R250
Q203
C207
R253
ZD203
C220
R216
R215
C214
Q202
R212
R225
R224
C235
C246
R223
Q201
R231
R207
IC202
C215
R211
C219
R219
C217
R217
R209
C213
R251
C208
R210
C229
R221
C205
R213
C232
C230
R252
R249
CNP201
R125
C120
C123
R124
R119
C121
D102
R123
R117
C117
IC101
C105
R105
D101
R115
C115
R113
C113
R109
C109
C111
R121
R104
R101
L107
C107
R103
CNP101
C351
L301
R351
C354
C108
R102
L108
R352
R116
C106
R106
R354
Q351
R353
C353
C352
C112
C110
R110
C114
R114
C116
R126
R118
C118
R122
C119
R120
C122
C233
C234
CNP602
C239
C226
C240
C201
D201
C237
C238
IC201
C225
R232
C236
C221
C222
C210
C302
C227
C212
D801
C837
R812
C854
C825
C821
C822
C813
R803
C836
R834
C814
R833
C818
R832
R831
R807
R830
C819
R829
C829
C863
C816
C833
R828
C841
R805
C804
R806
C820
C801
C828
R804
C815
C802
C830
R801
Q801
C817
R826
R824
C827
R827
C826
R820
C824
C838
C839
C835
C834
C842
C843
L803
R852
R868
R867
Q806
R870
R845
R866
D802
R869
IC803
Q803
R851
D804
BI803
R850
L807
TC1
R1
C27
C10
R8
R7
C9
C29
VD3
C12
C11
R2
L1
R6
R54
C8
C61
C6
C54
VD2
L2
R5
C7
R4
L51
C56
C53
R12
IC1
R53
C60
C23
C21
C59
R52
C55
C20
C52
C22
C26
C24
R15
R18
Q1
R16
R17
C19
R71
C73
C74
R72
C72
C71
C16
C25
CF4
CF1
C14
CF3
R10
T3
C13
D1
F1
C3
VD1
C2
R3
C1
C856
R865
Q802
C806
COR1
C807
R853
BI801
R802
BI802
R811
R204
D204
D205
C211
R202
Q204
R201
D203
D202
C204
R203
R205
Q206
ZD202
ZD201
C209
Q207
C206
R206
Q205
C203
C202
C249
R228
R227
R254
C216
R222
R218
C218
R220
R861
C15
R840
2
3
4
5
1
6
7
8
9
12
13
14
11
10
1 2 3
2
3
4
51 7
8
9
6
12
11
10
1 2 3 4
ABCD
EF
G
H
E
C
B
E
C
B
E
C
B
B
C
E
E
C
B
B
C
E
B
C
E
B
C
E
B C E
B C E
B C E
B C E
E C B
E C B
E C B
4
3
2
1
BC
AD
3
2
1
80
81
1
5
10
15
20
25
35
40
45
55
60
65
70
75
85
90
95
51
50
30
31
8
1
15
10
5
25
30
1
20
16
E
C
B
1
2
3
3
2
1
B
C
E
11
12
10
5
20
22
1
15
3 2 1
2
3
1
3 2 1
L4
1
10
5
12
24
20
15
13
1
6
BR
BR
3
2
1
HPJ201
HEADPHONES
PLAY REC
SW102
RECORD/
PLAYBACK
1 2 3
1
5
10
15
20
1
1
11
12
1
1
11
12
GY
GY
100
D807
R880
R859
QT-
CD250H
ONLY
CF2
1
2
3
C870
C864
IC802
R896
R897
C862
R863
R864
R821
C840
C872
IC801
C823
C805
C5
C32
C68
C18
R14
C58
R20
C34
R77
C33
13
12
15 10
520
24
1
5
1
1
2
3
4
C57
SPEAKERS
SP201 SP202 R-CH
L-CH
CNS201
GY
BK
RD
MAIN PWB-A1
CD CONTROL
PWB-A2
SWITCH
PWB-A4
L3
AM BAR ANTENNA
BK
GY
GY
GY
GY
GY
1
2
3
4
5
8
7
6
5
4
3
2
1
BR
WH
WH
WH
WH
WH
WH
WH
WH
WH
WH
WH
BR
CNS802
CNS801
SW810
CD LID
OPEN/CLOSE
SW201
FUNCTION
SELECTOR
TUNER
TAPE
OFF
POWER ON
CD
5
1
7
8
6
14
15
11
17
16
10
2
3
9
12
13
4
BK
BL
(255)
TO
SP202
(R-CH)