Icom IC-T2H Service Manual page 26

SECTION 11 VOLTAGE DIAGRAM
SP1
K036NA500-26A27 J5
VCC
SP
2 T5
SPG R5
1
Q20
C164 S5
0.001
5.0V 2SA1588
5V
Q22
2SB1132 Q18
C148
0.1 + + + + 2SB1201
Q21
C176 C174 2SA1588
MIC R213
MC1 R125 22 22
KUC3523-040245 C177 C175 10 k
220 k 15 22
R144
33 k
C163
0.001 5 4
R272 6 5 4 Q19
4.7 k
S1 XP6501
JPM1990-2013R
Q40
XP1501
C161
R139 0.01
4.7 k
1 2 3 3 2 1
R133
1 k
R137
4.7 k
R141 C159
C162 C160 +
C1 J6 4.7 k 0.001 0.01 0.001 C278
0.001 15
BATT
1
R134
RV-312 VOL IN
R1 2 4.7 k
VOL OUT
3
GND
4
VCC
5
+
C173
47
VR BOARD
R253
1 k
KR3
KR2
J2 R132
470 KR1
OPT
EXT. KR0
EMIC IR1/DST
MIC
IR0
C165
0.001
D22
D16
MA6S121
C166
0.001 R254
R174 1 k
J3 15 k
AF OUT P0 P1 P2 P3
D27 KS5
DA204U
SP KS4
EXT. L34
10 µH
CLONE
SP
1 2 3 A
Q31
C167 C169 C299 DTC144TU D33 D23
22 p 0.001 47 p
4 5 6 B
Q27
2SB1132 D34
MA111
R156 D25
J4 SB07-03C
18
D20
7 8 9 C D18 MA111
CHARGE R255
R157 1 k
18
C170 KS3
0.001
C202 KS2
C200 0.001
KS1
0.001
KS0
* 0 # D
BATT
BATT
D17
MA6S121
8.2V
BATT
C171 R158
0.001
GND D24 4.7 k C203
DA204U
C201 0.001
0.001
C172
470 p
LEFT SIDE
11 - 1
9.5V CL IN
VCC VCC
T5 T5
CPU5 CPU5
TEMP
5 4 R182
NTCCF20124AH
473 k
IC11 R215
330 k
S-80742SL-A6
R220 C248
220 k 0.01 R181
C232
C197 100 k R279 C142
0.1
0.001 R103 R216 C231 C296 100 k 0.1
0.1
12 k 150 k 0.1
1 2 3
2.9V
C246
C195 R102
0.1 18 p
10
Q23
X2
R149 CR-584 L10
IC6 R221 C247 2SC4081 10 µH
5.0V 0.001 10 k
330 k
S-81250PG-PD
R218 D14
R219
39 k 68 k MA2S077
Q36 C230
R148 R214
0.47 100 k R101
2SC4081 12 k
+ 1M
O I
R106 C193
G 12 k 6 p
C196 C194
R146 R147 27 p
+ + 0.001 R281
100 k 220 k
C157 C156 1 k
0.001 1
0.001 PBO/AND
RESET
2
C158 C155 D15 C144 AVSS
100 10 MA111 0.001 CSIFT 3
TEST
4 X2
5
X1
6
VSS
7
IC10 OSC1
R291
100 k C198 TC4S01F R282 8
OSC2
0.01 R283 1 k 9
RES
C258 3 R226 1 k
R217 4 1 k 10
0.1 NMI
10 k 2 SCK
R259 11
P20/IRG4/ADTRG
100 k
1 10 5 1 SI 12
INPUT VDD P21/SCK1
2 IC7
PD 9 SO 13
EST P22/SI1
X25040SI-2.7
3 8 UNLK 14
OSCO STD P23/SO1
4 7 8 15
OSCI ACK D31 1 VCC P24/SCK3
MA111 CS R290
5 6 2 7 CL OUT 1 k 16
VSS SD SO HOLD P25/RXD
3 6 17
X3 WP SCK PLST
4 5 P26/YXD
EFOS4194E3 IC9 VSS SI 18
[ANI] R227
[ANI] only 1 k R256 P27/IRQO
LC73881M Q39 only NOIS 1 k 19
P17/IRQ3/TMIF
DTA114TU
OPINT 20
C245 P16/IRQ2
0.001
ECS 21
P15/IRQ1
OPPD 22
R208 P14
R209
56 k 560 k 23
P13/TMIG
24
R260 P12/TMOFH
1 k
OPCS 25
CTDA2 P11/TMOFL
TX: 0V CTDA1
C264
C251 C252
0.1 RX: 3V 0.01 0.001 CTDA0
T5
R5
TX: 2.0V
RX: 0.5V
TX: 0V
R197 R199
680 k RX: 1.0V 4.7 k
R252
Q35 R229 R230 R231 1 k
Q33
10 k 22 k 47 k
2SC4081 2SC4081
R203
R202
R191 R192 47 k 47 k
C250
18 k 18 k
0.01
R234
C228 C226
82 k
C249 0.0033 0.047
C222 C225 R196
0.01 C227
0.047 0.012 R224 0.027 10 k
47 k
R195
18 k
R207
TX: 0V
1 k
R200
R263 RX: 0.4V
220 k 1 k
TX: 1.4V
RX: 0V
R289
1 k
T5
DS2
CLV
LNJ310M6URA
C256 TX: 5V
0.001 RX: 0V
R183
330
DS3
LNJ310M6URA
Q25
2SC4081
PLST
R204 DS4
15 k
LNJ808R8ERA SCK
SO
R205 R155 UNLK
15 k 470
DS1
LM-1462B
75 SEG40 COM1 1
P97/SEG40 COM4
74 SEG39 COM2 2
P96/SEG39 COM3
73 SEG38 COM3 3
P95/SEG38 COM2
72 SEG37 COM4 4
P94/SEG37 COM1
SEG29 5
P93/SEG36 71 SEG1
SEG30 6
70 SEG35 SEG2
P92/SEG35
SEG31 7
69 SEG34 SEG3
P91/SEG34
SEG33 8
SEG4
P90/SEG33 68 SEG33
SEG34 9
SEG5
P87/SEG32 67
SEG36 10
SEG6
66 SEG31
IC8 P86/SEG31 SEG37 11 SEG7
65 SEG30 SEG38 12
HD6433875A41H [THA] P85/SEG30 SEG8
64 SEG29 SEG39 13
HD6433875A45H [Other] P84/SEG29 SEG9
SEG40 14
P83/SEG28 63 SEG10
R287
SEG41 15
62 1 k CTDA2 SEG11
P82/SEG27
SEG42 16
61 R286 1 k CTDA1 SEG12
P81/SEG26
R285 SEG43 17
SEG13
P80/SEG25 60 1 k CTDA0
SEG44 18 SEG14
R245 22 k
59 DA05 T4/PWR
P77/SEG24 SEG45 19 SEG15
47 k
58 DA04 R246 20
P76/SEG23 SEG46 SEG16
R247 82 k SEG47 21
P75/SEG22 57 DA03 SEG17
R248 180 k SEG48 22
P74/SEG21 56 DA02 SEG18
R249 330 k SEG49 23
55 DA01 SEG19
P73/SEG20
SEG50 24
54 DA00 R258 680 k SEG20
P72/SEG19
SEG51 25 SEG21
P71/SEG18 53 AFON
SEG52 26 SEG22
52 LIGHT R284 1 k 27
P70/SEG17 COM1
51 T5C 28
P67/SEG16 COM2
R236 29
COM3
1 k 30
TXC COM4
R237
100 k
VCC
R235 T5
100 k
R5
S5
5V
R257
1 k
RMUT
MIC
C199
MMUT VOL IN
0.01
VOLOUT
AF OUT
EMIC
VCC
T5
S5
Q34
CLV
2SK880
5.0V VCC
T5
R298
S5
22
R186
C234
47 k
C233 0.001
+
0.001
C48
1.5 R28
VCO BOARD R23
100 150
2.9V
IC1 Q8 C39
R27
L21 µPD3140GS 220 0.001
4.7 µH 2SC4226
C46 R22
C37 27 k
0.001 L10
1 p
68 nH
L11
W10 1 20 C33
VCC1 GND1 4.7V LB-312 0.001 2.9V
R26
2 19 R151
IN1 IN2 6.8 k
47 k J1 C34 C259
3 ENB 18 0.5 p
VCC2 L12 180 p
17 0.82 µH 2.4V
4 CLK XB VCOOUT 5
5 16 S5 C36
DATA XI R33 4
6 15 0.001
T1 XO 1.5 k GND
3 R24
7 14 C45
LOK GND2 R32 SHIFT 2 0.001 220 Q6
13
8 CP1 CP2 4.7 k LV
R45 1 2SC4226
9 12 150
FI1 FI2 C41 C40 R25 C35
X1 + + 6.8 k
10 FO1 FO2 11 D6 27 p 1 p 0.001
CR-514 MA77
C56 C47 0.7V
D5
0.1 R34 0.1 R29 HVU350 C38 Q7
1 p
680 TX: 5.0V C44 1.5 k
C218 C300 2SC4226
0.001
0.001 6.8 RX: 0V
C54 C68
C64
0.001 20p
22 p
C63 C285
C211 0.001 0.7V
39 p R30 R280
100 k 0.1 27
Q32
2LO
TX: 0V
UN521D
RX: 5.0V
R5
S5
X4 CDBCA450CX24 L35 0.1 µH
R84 TX: 0V
390 R77 [EUR, UK,
TX: 0V
C51 C65 C67 R85 470 RX: 4.9V
0.001 4 p 0.001 1 k R82 RX: 3.4V
R81
IC2 C117 R242 1.2 k Q13
0.001 22 k 470 FI1
TA31136FN (D) W1 FL-251 2SK360IG
F12
1
C53 C66 CFWM450E OSCIN MIXIN 16 C102
2 p 10 p L25 0.001
L13 2 OSCOUT GND 15 C279 R76 C106
1.5 µH 1.5 µH O I 82 p 15 p [EUR, UK, ITA, USA]
3 14 C110 2.2 k 15 p
MIXOUT N-REC
0.001
4 VCC N-DET 13 L22
1.8 µH L20
5 12 1.8 µH
IFIN RSSI
R90 C123
NTCCF20123NH 153KCT C121 6 DEC IFOUT 11 C116 0V
0.001 470 p C108
7 10 10 p
FILOUT QUAD C111 0.01 C107
R79 R71
R88 8 AFOUT 9 0.001 1 k 0.001 56
FILIN
220 k R80
R86 R83 82 k
R91 R87 470
82 k
15 k 1.5 k C120
C118
R262 R92 0.1 R70
R89 RV-152 C122 C119 0.01 2.2 k
15 k
22 k 470 p 1 C105
TX: 0V
C114 C113 C112 0.001
0.001 0.001 0.001 RX: 0.7V
Q14
C272
2SC4215
0.01
VCC
VCC
R5 R5
S5
5V 5V
R166 R167
100 k
R95 100 k
C125
0.0033 390 k
R131 IC3c C124
0.01
470 NJM2902V 6
C132
- 7 1
R294 0.0022 C217 C126 I/O 14
10 k 10 5 VDD
+ 0.1 0.012 + 2
8 O/I CONT.A 13
C154 + 9
3 12
10 Q17 - O/I CONT.D
IC3b
2SB1462 C134 4 I/O I/O 11
R295 R296 R104 120 p NJM2902V
R261 5
1 k 1 k 1 k 100 k R105 CONT.B O/I 10
100 6 9
CONT.C O/I
R176 R93 R94 8
R108 R96 7 VEE
5.6 k 12 k 560 k 47 k I/O
390 k C128
C147 C133 R112
R130 0.1 IC4 1 1M
0.1 R297 R109 C131
100 k 1 k 10 k BU4066BCFV
0.01 R168
10 k
VOL IN
MAIN UNIT
R161
VCC 0.15
T5
C8 L3 L2 L1
0.001 60 nH 60 nH 60 nH
1
R3
Q28 1 k
R21
100 TX: 3.8V R160 J1
2SC4081
R238 RX: 0V 120 C6 C4 C2
15
4.5V R13 R162 4 p 7 p 2 p
39
1 k 3 2 1 +
L32 R15 C21 C20
56 nH 100 47 0.001
CHASSIS
C7
C5 C3 C1
Q5 15 p 22 p 18 p 7 p UNIT
C32
0.001 R20 2SC4226 C204
L6 0.001 L24
47 k 4 5 6 0.82 µH
R239 47 nH R266
1 k C19
C24 150 L5
R163 Q9 0.001
0.001 15 k 25 nH
XP6401
C31 C30 L8
C15 C14 L4
0.001 18 p 56 nH
C10 33 p 0.001 14.3 nH
C26 0.001 R2
0.7V 10 k Q2
0.001 C205
D3
C22 L30 2SK3074 0.001
MA77 L33
R12 15 p 56 nH
2.7 k 33 nH
D1
Q4 R18 C27 C11
18 k C25 R16 33 p 56 p MA77
27 p 270 C281
2SC4403 15 p R7 C298
R5
R9 330 33 p 47
56
C28 Q1
R240
100 0.001 TX: 1.1V
2SK3075
470 [EUR, UK, RX: 0V C290
C23 R10 C17 R292 C13
ITA, USA] 0.22 0.001
R11 0.001 10 56 0.001
1.5 k
TX: 0.8V
TX: 3.2V
RX: 0.7V
RX: 1.2V Q3
L31 D4 2SC3356
MA77
39 nH
+
C291
1
1LD Q37
DTA144EU
S5
R69 TX: 0V R46
56
560 RX: 2.8V
ITA, USA]
1.5 k [EUR, UK, ITA, USA] TX: 0V TX: 0V C179
R68 68 R61
0.01
330 RX: 0V RX: 2.8V R210
R58 Q12 R48 R49
C99 Q29 1 k
22 2SK360IG 220 68 k C69
0.001 0.001 C73
2SC4226
C94 C260 0.1
0.5 p L26
0.001 56 nH
R52
L16 L15
C79 C80 1M
L19 39 p 39 p 28 nH 60 nH
D11 D10 C70
LS-523 D12 HVU350 L18 HVU350 5 p R53
HVU350 LS-523 D32 4 10 k
C81 2
C71 HVU131TRF –
R59 150 p 1 R54
C236 15 0.001 3 180 k
C92 R243 C90 C85 +
3 p 39 p D8
47 p 100 k 0.001 C87
R66 R64 0.001 L17 R47 HVU131TRF C77 C76 R55 11 R264
100 k 120 L14 18 p 22 p
100 k 22 nH 1 k 330 k
82 nH
C97 C96 R62 C78
100 k 3 p C75
0.75 p 47 p TX: 0V
IC3a 0.01
C243
RX: 0.8V NJM2902V
0.001
C95
0.001
VCC
S5
Q15 TX: 0V (SQL. open)
2SB1201 RX: 0V (SQL. close)
R115
R97
120 k
180 k C141 C295 IC5 TA7368F C153
R99 R178
0.001 0.001 220
6.8 k 4.7 k R122 1 10 +
C212 R98 C135 NC POUT
1.8 k
0.01 180 k 220 p 6 5 4 2 VCC 9
Q16 PWGND
8
R114 R267 XP6501 3 NC PREGND
R107 47 k R117
6.8 k 4 VIN
180 k + 14 1.5 k R120 PHASE 7
13
15 k 5 6
C213 12 RIPPLE NF
- 1 2 3
0.1 R118 R128
R119 R127
IC3d 10 k RV-110 R126 12 k 10
R169 10
8.2 k NJM2902V + + R121 R123 + C146 +
C138 1 k 0.001 C152
4.7 k C150
R159 R116 3.3 C149 0.1
0.1 10
C136 100 k 1 k C137
R268 R269
0.0022 0.047 12 k 22 k C139 C140 C145 C151
C129
15 0.001 0.001 100 47 p
R100 C220
0.1
1.8 k
VOL OUT
AF OUT
AFON
RIGHT SIDE
2