Schematic Diagram - Hytera DMR Service Manual

5
15.6

Schematic Diagram

D
1
TP232 TP232
1
TP233 TP233
1
TP234 TP234
1
TP235 TP235
1
TP236 TP236
1V8D
R230 R230
0 0
C236 C236
0.1u 0.1u RN230 RN230
100*4 100*4
3V3D
R233 R233
0 0
C239 C239
R234 R234 R235 R235
0.1u 0.1u
10K 10K 10K 10K
1
IOVDD
2
PWR_DN
3
/CODEC_RST
RESET
R242 R242 0 0
1 4
TP238 TP238 GPIO2
1 5
TP239 TP239 GPIO1
6
AVDD2
7
C
R243 R243 AVSS2
8
3V3A
AVDD1
0 0 9
NC9
C248 C248 10
+ + NC10
C519 C519 0.1u 0.1u
11
NC11
10u/16v 10u/16v
12
NC12
U231 U231
BB IC BB IC
R249 R249
1V8D
0 0 C255 C255
C292 C292
NEW 1u 1u
0.01u 0.01u
NC NC R280 R280
TEMP_DET
1K 1K R290 R290
NC NC R254 R254
TEMP_DET2
10K 10K R258 R258 C258 C258 0.1u 0.1u
CODEC_PWT
R259 R259 10K 10K
R261 R261
C260 C260 C261 C261
10K 10K
0.01u 0.01u
0.01u 0.01u
L233 L233
MIC_GROUND
C269 C269
BLM18BD601SN1D BLM18BD601SN1D
220P 220P
L234 L234
INT_MIC
B
BLM18BD601SN1D BLM18BD601SN1D
C270 C270
TP4029 TP4029 220P 220P
L235 L235
EXT_MIC
C272 C272 BLM18BD601SN1D BLM18BD601SN1D
220P 220P
EXT_MIC_EN
OP AMP OP AMP
2
9d3V
R266 47K R266 47K
3
R270 R270
C275 C275
+ +
47K 47K
10uF/16V 10uF/16V
A
5
4
MD78X/MD78XG Schematic Diagram
(Audio Circuit)
L232 L232
9V3 BLM18PG300SN1 BLM18PG300SN1
C232 C232
C233 C233
0.1u 0.1u
0.1u 0.1u
10uF/25V 10uF/25V
3V3A
R238 R238
0 0 VAG
C289 C289
0.1u 0.1u
C520 C520
C240 C240 + +
R292 R292
10u/16v 10u/16v
0.1u 0.1u 33 33
3V3A
C291 C291
36
DRVSS2
35
OUT8P U237 U237
C243 C243 1u 1u
34
SWITCH IC SWITCH IC
BVDD
33
OUT8N 0.1u 0.1u 5 6
VCC S
32
DRVSS1
2 1
31 GND B1
C290 1u C290 1u
VGND/CP_OUTN 4 3
30 A B0
SPKFC
29
DRVDD
C251 C251 1u 1u C247 C247
28
SPK2
27 R246 22K R246 22K
SPK1
C249 1u C249 1u R244 R244
26
R291 0 R291 0
OUT32N
25
MIC_DET
C246 C246 100K 100K
NC NC R296 R296
OP AMP OP AMP
13
12
VAG
U235D U235D
C256 C256
C295 C295 R202 R202
C262 C262 C259 C259 R236 R236
100P 100P
100P 100P
1u 1u
10K 10K 10K 10K
9d3V
TP237 TP237 1u 1u
C238 C238 C200 C200
1u 1u 1u 1u
R284 R284 C257 C257 1u 1u
R285 R285
15k 15k
15k 15k
9d3V
R279 R279 R283 R283
30k 30k
30k 30k
C266 C266 R255 R255
470 470
1u 1u
C298 C298 C299 C299
3
1u 1u 1u 1u
C267 C267
C286 C286
+ +
0.1u 0.1u 2
10u/25V 10u/25V
1
R264 1K R264 1K
C271 C271
220P 220P
R267 1K R267 1K
C273 C273
220P 220P
Q234 Q234
3 4
2
1 5
UMC4N UMC4N
VAG
R265 R265
1
1.8K 1.8K
U236A U236A
9d3V
4
3
9d3V
B+
C285 C285 C284 C284
C234 C234 + +
C235 C235
0.01u 0.01u 0.1u 0.1u 47uF/25V 47uF/25V
R288 47K R288 47K C268 C268 0.47u 0.47u R289 0 R289 0
9d3V
C245 C245 220p 220p
C283 C283
0.1u 0.1u
+ +
C293 C293 C237 C237
10uF/16V 10uF/16V
0.47u 0.47u
U238 U238 C294 C294
C287 C287
OP AMP OP AMP C241 0 C241 0 R240 R240 0 0 0.47u 0.47u 1uF 1uF
C288 C288
R286 47K R286 47K
100p 100p
R239 6.8K R239 6.8K
C242 C242 220p 220p
Q231 Q231
220p 220p
3 4
22K 22K
2 R247 R247
100K 100K
1 5
UMC4N UMC4N
14
C252 1u C252 1u
R250 15K R250 15K
VAG
C254 C254 220p 220p
R252 100K R252 100K
OP AMP OP AMP
C263 C263
30K 30K R257 R257
9 1u 1u
R260 R260 330mV
8
10
VAG 100 100
U235C U235C C264 C264 C265 C265 220p 220p
1u 1u
R262 R262 100K 100K
Q232 Q232
9d3V
4
R263 R263
30K 30K
OP AMP OP AMP
2
3
VAG
5
U235A U235A
UMC4N UMC4N
9d3V
R268 R268
100K 100K
C274 C274
0.1u 0.1u
R272 R272
VAG
C278 C278
1u 1u
Q235 Q235
C279 C279 1u 1u C280 C280 220p 220p
3 4
R273 24K R273 24K
R274 R274 100K 100K
R275 R275
2
100K 100K
OP AMP OP AMP 1 5
13
UMC4N UMC4N
14
12
VAG
U236D U236D
9d3V
314
312
3
2
R245 R245 1R 1R
EXT_SPKR+
R253 R253 1R 1R
EXT_SPKR-
R293 R293 1R 1R
SPKR1+
R294 R294 1R 1R
SPKR1-
U201 U201
AUDIO PA AUDIO PA
R295 R295 1K 1K 9d3V
Q230 Q230
R237 120K R237 120K
4 3
R241 R241
2
AUDIO_PA_EN
120K 120K
5 1
UMC4N UMC4N
LOW_LEVEL_MUTE
C250 C250 220p 220p
R248 R248 100K 100K
OP AMP OP AMP
C253 1u/25V C253 1u/25V
6
R251 R251 600mV
7
HANDSET_AUDIO
5
100 100
U235B U235B
D230 ESD IC D230 ESD IC
9d3V
RX_AUDIO
PUB_ADDRESS2_EN
1 UMC4N UMC4N
Q233 Q233
R269 R269
100K 100K
C277 C277
OP AMP OP AMP
C276 C276 1u 1u
6
R271 R271
1u 1u
7 PUB_ADDRESS2
47K 47K 5
100 100
U236B U236B
D231 ESD IC D231 ESD IC
C281 C281
9d3V
1u 1u
VAG
R276 R276 OP AMP OP AMP C282 C282
R277 R277
100K 100K 1u 1u
47K 47K 9
R278 R278
8 PUB_ADDRESS1
10
100 100
U236C U236C
9d3V
PUB_ADDRESS1_EN
PUB_ADDRESS_MIC_EN
DESIGNER: LHY
Title Title Title
<Title> <Title> <Title> AUDIO
Size Size Size Document Number Document Number Document Number
C C C <Doc> <Doc> <Doc>
Date: Date: Date: Monday, November 29, 2010 Monday, November 29, 2010 Monday, November 29, 2010
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C
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Rev Rev Rev
<RevCode> <RevCode> <RevCode>
Sheet Sheet Sheet 1 1 1 of of of 14 14 14
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