Schematic Diagram - Hytera DMR Service Manual

5

17.6 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/10v 10u/10v
12
NC12
U231 U231
BB IC BB IC
R249 R249
1V8D
0 0 C255 C255
C292 C292
1u 1u
NC NC
1k 1k R280 R280
TEMP_DET
NC NC R290 R290
NC NC R254 R254
REV_TEMP_DET
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
B
L234 L234
INT_MIC
BLM18BD601SN1D BLM18BD601SN1D
C270 C270
TP4029 TP4029 220P 220P
L235 L235
EXT_MIC
C272 C272 BLM18BD601SN1D BLM18BD601SN1D
220P 220P
EXT_MIC_EN
A
5
4
MD78X/MD78XG Schematic Diagram
3V3A
R238 R238
0 0
C520 C520
C240 C240 + +
3V3A
10u/10v 10u/10v
0.1u 0.1u
36
DRVSS2
35
OUT8P
C243 C243
34
BVDD
33
OUT8N 0.1u 0.1u
32
DRVSS1
31
VGND/CP_OUTN
30
SPKFC
C249 1u C249 1u
29
DRVDD
C251 C251 1u 1u
28
SPK2
27
SPK1
26
R299 0 R299 0 R291 1.2K R291 1.2K
OUT32N
25
MIC_DET
100K 100K
C246 C246
R296 R296
3900P 3900P
9d3V
C295 C295 C256 C256
R236 R236 R202 R202
100p 100p
TP237 TP237 10K 10K 10K 10K 100p 100p
C262 C262 C259 C259
1u 1u
1u 1u
R255 R255
470 470
C238 C238 C200 C200
1u 1u 1u 1u
R284 R284 R285 R285
Q232 Q232
15k 15k 15k 15k
R279 R279 R283 R283
3
30k 30k 30k 30k
C266 C266
C286 C286 2
1u 1u C267 C267 + +
0.1u 0.1u 10u/25V 10u/25V
1
UMC4N UMC4N
C298 C298 C299 C299
1u 1u 1u 1u
R264 1K R264 1K
C271 C271
220P 220P
C273 C273 R267 1K R267 1K
C274 C274
220P 220P
0.1u 0.1u
4
3
(Audio Circuit)
L232 L232
9V3 9d3V
BLM18PG300SN1 BLM18PG300SN1
B+
C232 C232
C233 C233
0.1u 0.1u C285 C285
0.1u 0.1u C234 C234
C235 C235
10uF/25V 10uF/25V
0.01u 0.01u 0.1u 0.1u
R288 47K R288 47K C268 C268 0.47u 0.47u R289 0 R289 0
9d3V
C245 C245 220p 220p
VAG
C283 C283
C289 C289
0.1u 0.1u
+ +
C293 C293
0.1u 0.1u
10uF/16V 10uF/16V
R292 R292
U238 U238
33 33
OPAMP OPAMP C241 0 C241 0
C291 C291
U237 U237 R286 47K R286 47K
1u 1u
SWITCH IC SWITCH IC
R239 5.6K R239 5.6K
C242 C242 220p 220p
5 6
VCC S
2 1
GND B1
C290 1u C290 1u
4 3
A B0
Q231 Q231
C247 C247 220p 220p
3 4
R246 22K R246 22K
R244 R244 22K 22K
R247 R247
2
100K 100K
1 5
OPAMP OPAMP
13 UMC4N UMC4N
14
12
VAG
U235D U235D
C254 C254 220p 220p
R252 100K R252 100K
9d3V
OPAMP OPAMP
C257 C257
C263 C263
30K R257 30K R257
9 1u 1u
8
10
VAG
1u 1u
U235C U235C
4
9d3V
5
OPAMP OPAMP
VAG
2
R265 R265
9d3V
1
R266 47K R266 47K
3
1.8K 1.8K
U236A U236A
R270 R270
C275 C275
+ +
47K 47K
10uF/16V 10uF/16V
9d3V
Q234 Q234
C279 C279 1u 1u C280 C280 220p 220p
3 4
R273 24K R273 24K
R274 R274 100K 100K
R275 R275
2
100K 100K
OPAMP OPAMP
1 5
13
UMC4N UMC4N
14
12
VAG
U236D U236D
9d3V
450 452
3
2
R245 R245 1R 1R
R253 R253 1R 1R
R293 R293 1R 1R
R294 R294 1R 1R
C284 C284
+ +
47uF/25V 47uF/25V
U201 U201
AUDIO PA AUDIO PA
R295 R295 1K 1K
Q230 Q230
R237 120K R237 120K
C237 C237
4
0.47u 0.47u
C294 C294 R241 R241
C287 C287
R240 R240 0 0 0.47u 0.47u 1uF 1uF 120K 120K
5
C288 C288
100p 100p
UMC4N UMC4N
C250 C250 220p 220p
R248 R248 100K 100K
OPAMP OPAMP
C252 1u C252 1u
R250 15K R250 15K
C253 1u/25V C253 1u/25V
6
7
5
VAG 100 100
U235B U235B
D230 MMBZ20V D230 MMBZ20V
9d3V
R260 R260
330mV
100 100
C264 C264 C265 C265 220p 220p
1u 1u
R262 R262 100K 100K
R263 R263
30K 30K
OPAMP OPAMP
2
1 UMC4N UMC4N
3
VAG Q233 Q233
U235A U235A
R269 R269
9d3V 100K 100K
R268 R268
100K 100K C277 C277
OPAMP OPAMP
C276 C276
1u 1u
6
1u 1u
7
R272 R272 47K 47K
5
VAG
C278 C278
1u 1u U236B U236B
9d3V
D231 MMBZ20V D231 MMBZ20V
C281 C281
Q235 Q235 1u 1u
VAG
3 4
OPAMP OPAMP
R276 R276 C282 C282
R277 R277
2
100K 100K
1u 1u
47K 47K
9
8
1 5 10
UMC4N UMC4N
U236C U236C
9d3V
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
2
1
EXT_SPKR+
EXT_SPKR-
SPKR1+
SPKR1- D
9d3V
3
2
AUDIO_PA_EN
1
LOW_LEVEL_MUTE
C
R251 R251
600mV
HANDSET_AUDIO
RX_AUDIO
PUB_ADDRESS2_EN
B
R271 R271
PUB_ADDRESS2
100 100
R278 R278
PUB_ADDRESS1
100 100
PUB_ADDRESS1_EN
PUB_ADDRESS_MIC_EN
A
Rev Rev Rev
<RevCode> <RevCode> <RevCode>
Sheet Sheet Sheet 1 1 1 of of of 14 14 14
1