Tc-268 Schematic Diagram - HYT TC-268 Service Manual

AT240810S12.5 5V
1 8
A0 VCC
2 TEST 7
A1
3 6
A2 SCL
4 5
GND SDA
R401 R405
IC401
100k 1k
PST9140NR 5V
5
1 NC VCC
RN5VL45C
R404
1 OUT
2 SUB NC
0
3 4 10k*4
GND OUT VDD
(1)
IC400
GND NC
(2)
IC402
(3)
CP1
4V
(4)
R601
10K
R600
Q402
100P 47K
C606 C605 DTA114YE
TA75W01FU
R603
0.012U
10K
C604
R602 680K
C603
0.012U 0.1U
Q403
R608
DTC144EE
IC8
1K
R606
47K
R:2.26V AUDIO
R607 C602 C601
AMP ACTIVE
39K 1000P 4.7U
FILTER
R6
(1)
1k
33
(3) DT
(4) 34
CK
35
(2) LE
36
5MC
DTC114EE 37
DTC114EE AFCO
38
RX M38034M4
39
GLED
40
RLED MICRO PROCESSOR
41
SAVE
Q400 Q401 42
MUTE
43
5RC
44
45 5TC
46
47
48
L400
0.22u
CHANNEL SWITCH
POWER SWITCH
AUDIO VOLUM R431
0 C702 C703
R701 R702 R703
R430 100
10K 10K 0.01U 1K
1 0.033UF
2
C701
3
3900P
4
C704
5
6800P
6
7
8
10
9
PDF created with pdfFactory trial version
C25
R28
2SC5108(Y)
470p
0
C52
Q2
4.9V 1000p
5411A/B
C5
VR1
3 2
4.7u/6.3 R3 5C Xout
68k
C54
10 0.1U
C4 4 1
VC Ognd
0.1u X1 CV (TP1)
C30
L2
R17
MA2S111 R2
0.56u 100K
D7 1k
C29
R7 R13 1000p L15 1SV283
R5 R10
L7 6.8u
0 0 150 150
1SV283
L5 R14
560n 100
IC1 C28 33p
LMX1511TMX C19
R8 L16 L17
220n
330k 220n
0.01u
Q1
2SC5108(Y)
R406
2.2k
FMMT591
Q406A
Q406B
Q408
DTA123JE
L401 C414
C533
1000P
IC404
S-81350HG-KD 0.1U R424 R425
R540 R500 R501 R513
OUT IN 3.3k 3.3k
0 4.7k 4.7k
15k
UMG3N UMG3N
GND
Q404 Q407
Q405 UPA672T
7.3728MHz C429
3 2
C427
1u
R435 C423
1
4
X400
L403
C415 R412
10 0.22u
10p
R433
R434 15k
15k
C420 C422
MONI
C418 0.01u 0.01u C425
IC403 S403
0.01u 0.01u
MONI 16 R415
RXD
15 R418
TXD R414 47k
14
PTT 47k
13 2.2k
12
ENC3
11 PTT
ENC2
10 S402
ENC1
9
ENC0
8 R502 C503
7
BEEP
6 82k
TO 0.033u
5
4
BATT
3
BUSY
2
TI
1
L402
R413
0.22u
1k
AUDIO MUTE SW
Q302
2SK1824
(2)
(1)
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TC-268 Schematic Diagram

C48
10p
C32 100p 3.8V
Q4
Q6
L6 D1 L8 2SK1875(V)
2SC5108(Y)
C47
6.8u 1SV283 6.8u
C44
33p 15p
0.5p
1SV214 Q5
Q7
R19
2SJ243 UMC4
L14
47k
C33
2SK1875(V) C43 R27
39P Q3
D3 L9
C35 0.5p(B) 1k
D4
6.8u *
*
L10 MA2S111 2SC4617
Q8
D6
0.01u C40 C50
4.7u/6.3
CF200
R200 OUT IN
10
R303 C301
C200
3.3k
R317 0.018u
R304 R201 C205
270k(D)
1M 10u/6.3 3.9k
R312 12k 220p
1 14 R302 C206
R202
0.01u(J)
C309 C202
5.6k 180k
220p
10p
470k(D)
VDD VSS C203
390k(D) 470p
C316
0.01u
C303 R204
7 8
3.3k C210
IC300 0.1u IC200
R321
NJM2902V
TA31136FN 0.01u
22k AUDIO AMP
R340 C208
ACTIVE FILTER
82P
120k(D)
R307
CD200
C321 47k
Q200
0.033u(J)
Q300 DTA114EE
2SC4617(S) DC SW
R326
Q303
5.6k(D)
DTA144EE
R329
0
R320
IC301 47k
NJM2904V
1 8
R313
39K
R318 180k
4 5
C338 56p
R323 100k
74
7.5V
Q102
T:1V R118 C116
RD01
R:1.3V
0 1000p
C108 R112 C109 L103
R107 2SC4988
2SC5108(Y) 3.9K 18 27n
MA2S077 C104 12P 1000p
C100 Q100 C103
R148
R147
* Q101
D100 1000p 330 330 R115 C111
C102 *
R223 C107
1000p
C106
100
C233
T:0V
R125
6P
R:4.3V
3.3K
Q107
DTC114TE
FMMT717
Q103
2nd Local
2SK1824
TP2
1stIF38.85MHz
1K
XF200
2SC4649 C214 L201
R210 C221 R211
OUT
IN
220 470 330n
0.01u 0.01u
Q201
3SK318
C232 R222 C243 L204 R213 C247
R220
*
2p 3.9k Q202 470p 0 0
2p 0.75U
*
C218
*
0.1u HVC350B
1000p
20p
MIXER
C217 C225
0.01u 0.1u
C245
1000p
C515
R503 R505
0.01u
6.8K 6.8K
R514 R519
Q502
VR500 68K
Q501 33k
33k
2SC4617(S)
2SC4617(S)
C507 C512
R508 R510 C509 R515 C511 R520 C514 R523
2.2u/4 3.3k 33k 33k 0.047u 6.8k
1k 3300p 0.047u 3300p
C505 R506
1u 820
C506 Q500
2SK1824
470p
C140 C144 C147
7.2V * * *
Q105 3T L111 C131 MA77 C137
L114 L115 L117
RD07
L110 4T 5T 6T 5T
L107 470p 1000p
D101
1u
*
*
33NH * * *
L118
47
7.3V
R123
R121 C120 C123 C125 0
C119
C118
1000P *
R101
C35
ANTENNA SW C103
R144 C128
C129
2SK1824 R136 150k 330 C135
Q106 C136
C134 100p
IC100
C138
1 Q109 C140
8
R133 DTA144EE C142
C144
150k R142 C146
C147
1M
C148
4 5 R145
C223
180k C241
R134 NJM2904V
R137 R138
C248
C234
150K 150k 150k
C252
Q104
*
C255
C258
DTC114EE
Q108
C259
C261
C423
L10
C254 C257
L100
HVC350B HVC350B
L203
C285
2p 2p L208
R240
L209
1000p
0 L210
* L214
*
100K L215
*
* * *
*
C252
*
C286
C253
RF AMP 1000p
R232 1000p AUDIO MUTE SW
Q203 Q307
0
3SK318 R310 2SK1588 C337
*
IC302
0 100u/6.3
1 VIN VCC 8
POUT 7
C398 2 RIP
R327
3 NF PW 6
4 5
0 0.1u PHA PRE
KIA6278F
R233
AUDIO AMP
0
C327
0.1u
R333
470k
Q305
2SA1362
C249
1000p
Q306
DTC144EE
C333
0.47u
Q304
DTC144EE
F500
3.0A
R536
1k
R524
IC500
51k NJM2100V
C516 Q504
R539
5 4 DTA143ZE
10p
0
L500
C520 C524 C525
0.022u 0.027u 0.1u
R538
8 1
R535 100
R525 C518
470
C519 1000P 1.5k
0.022u R530
R532
Q503
100
4.7u/6.3 2SC4919
820
D500
D501
1SS372 DAN222
CN1
* 136-150MHZ 150-174MHZ
10K 12K
8P 6P
33P
22P
18P 11P
15P 11P
33P 27P
47P 39P
12P 10P
13P
8P
30P 22P
13P 8P
24P 20P
13P 11P
10P /
9P 2P
8P 5P
10P 8P
/ 30P
12P
18P
18P 16P
5P
/
15P 20P
9P 12P
0.1U
1000P
27NH 23NH
100NH 82NH
56NH
68NH
68NH 56NH
68NH 56NH
56NH 47NH
68NH 56NH
/ 0.56UH
L501 CN500
L502
J500
J501
W500
SP
W501
MIC500