Kenwood TK-285 Service Manual page 39

A A B B C C D D
TK-285/(N)
PC BOARD VIEW
1 1
TX-RX UNIT (X57-619X-XX) Component Side + Foil Side View
2 2
0-11: K, E, 0-21: (N)M
3 3
L24
C256 L49
IC17
4 4
16
GND
X57-619X-XX
SQ
D2 J72-0734-12
D1
OPT
5 5
1
5CNS
LOK
51 75
AAC R220
50 76
RXEMAI
6 6 RXEMAO
RXD
TXD
R296
IC19
R297
AUXRXD / EXT SW
AUXTXD
7 7
SB
AUDIOBEEP
26 100
25 1
R137
R199
C166
8 8
Q19
R129
C267
X4
9 9
DTA144EE 2SJ243
DTC114EE 2SK1824
DTC144EE
2SA1745
D
2SC4617
10 10
2SC4619
2SC5108
B
TC75S51F
E
TC7S66FU
C
11 11
2SC4988
12 12
S-81350HG-KD
3SK239A
13 13
43
14 14
E E F F G G H H
IC16
R100
7 8
MONI R267
R3
LAMP
R271
5C
1 14
DEO
X3 CN2
R304
C119
R116
R305 R123
C136
17
C12
R110
R258
R8
R415 3
4
C138 C101
1 5
R89 C20
IC24
C7
C140
33
23
DI9
C123
C82
32 22 34
C124
R144 Q13
C421
CP21 R115
C66
R50
R140
C67
R139 Q14
C68
R143
C404
R14 C75
R145 C126
IC13
F1
R20
R146 C54 R37
C5
R147
C16
12 R33
RXAO
44 C35
R148
CN4
C21 R416 1
R149
C414
11
R150 RXAI R23
1 8
R151 R76 R72
C109
R69
IC7
4 5
PTTOUT C110 C102
R83 C18 R48
R410
C158
Q10
D3
C45
R65
R15
TXAO R136
R44
R78
C176 R85 R40
R95
C17
PTTIN
R166
R405
CN3
TXAI / MUTE
R134
R404
D19 C408
4
5
DI / ANI
IC25
8
Q17
1
D8
TK11250BM SA7025DK
S
G
AT29C020-90TI NJU7201U50
BU4094BCFV
TC35453F
I I J J K K L L
R73
R38
R114
R109 L11
C49 C405 L8
R96 C120 R295
L25
R93
R240
C33
C121
R243
D11
C266
C76
L6
R101
R77 C129
C132
C139
C183
R185 R159
C160
R119
C142 L10 C167 R192
C168
C149
C172
R120
CN6
R30
C37 C64 R54
Q7 R43
Q11
C30
D4
D5
Q4 R80
R31
C50
R39
8 9
C87
C60
D7 R81
X2
C268
R46
R56
IC12
1 16
R307
R42
C95
C72 C70
R308
R47
R84
L4
Q12
RN5VL42C
NJM2904V
M62364FP LC73872M
13
24
12
1
TC75W51FU
GN2011
5
8
4
4
1
44
M M N N O O
C247
IC100
C242
C227
R253
C224
CN10
C215
Q20 L32
R254
C228
C217
1
R412
8
Q25
CN9
IC23
E C B
5 4
C200 C211 L48
R281
C252
C226
R263
R265
C24
R276
Q23
C27
L31
C248 C201
D9
R127
R239
C197
C206 C210
C157
R202 C245
R219
R273
Q3
D23 C186 D16
L401
D17
L22
C216
C39
C204
L21 L27
3
L44
1
L51
XF1
L18 R413
R266
C218
L408
C177
CD1
C6
R122
R155
R177
TA31136FN
Pattern 1
Pattern 2
Pattern 3
Pattern 4
30620M8-394GP Pattern 5
Pattern 6
DA221
AT2416N10SI2.5
6
MA742
5
1
8
3
4
1
P P Q Q R R S S
TX-RX UNIT
(X57-619X-XX)
R e . f N . o A d d e r s s
D 1 6 H
D 2 8 P
D 3 7 G
D 4 I 7
D 5 I 7
D 6 6 J
D 7 I 8
D 8 8 F
L41
D 9 6 L
D 1 0 5 L
C246
C244
D 1 1 I 5
D 1 2 4 P
D 1 4 4 P
L45
D 1 6 6 O
D 1 7 6 N
D 1 8 9 G
C223
D 1 9 8 F
D 2 0 6 N
D 2 1 5 N
L37
D 2 2 4 Q
C237
D 2 3 6 L
R298
D 2 4 8 Q
D401 4O
C22
D402 7Q
C I 1 4 G
C I 2 5 H
C I 3 8 P
CN1
C I 4 I 6
C I 5 8 Q
C43
C I 6 6 P
C40
C I 7 7 F
C I 8 5 G
4
C I 9 6 P
IC9
6 C I 1 0 6 F
C I 1 1 7 H
C I 1 2 8 J
C I 1 3 6 F
C I 1 4 I 6
C19
C I 1 6 6 G
O
C I 1 7 4 C
G C I 1 8 7 N
IC5
D2
C I 1 9 7 C
I
R6 C I 2 0 3 C
D24
C I 2 1 6 D
C I 2 2 3 C
C I 2 3 5 N
C I 2 4 4 G
C I 2 5 9 G
Q 1 5 O
Connect 1 and 6.
Q 2 5 O
Q 3 6 P
Component side
Q 4 I 7
Q 5 7 P
Q 6 I 8
Q 7 I 7
Q 8 5 J
Q 9 I 5
Q 1 0 7 F
Q 1 1 7 K
Q 1 2 9 K
Foil side
Q 1 3 5 F
Q 1 4 5 F
Q 1 5 I 6
Q 1 6 6 J
Q 1 7 6 F
Q 1 8 6 K
Q 1 9 6 C
Q 2 0 5 M
Q 2 1 5 M
Q 2 2 5 N
Q 2 3 5 M
Q 2 4 8 O
Q 2 5 5 N