TRANSCEIVER 400 MHz
MTP700 Portable Radio / Detailed Service Manual
4.1 - 37
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
V1_3V
- supply for GCAP3 Regulators
- switched for TXPA_Driver bias, lin 5.5V Regulator
- RAW_B+ through fuse for Audio PA, SWB+, 3.3V Switching Regulator
7.2 VOLTS
HW_ID0
SWB+
DNP
V3_2.775V_DIG
- serial VCC of WPIC+
DC Power Supply Distribution
5V_RF
- LNODCT_RFOUT, RF PA bias, Vcc for Charge Pumps
- LNODCT
PWM Filter
V4_LNODCT
HW_ID=126
- Bias for the A/D inputs.
- Backlight_LED
VREF2_2.775V_DIG
- SSC - TX/RX-LED, Frequency switch
VREF2_2.775V
5,5V_RF
- Battery Interface circuitry
V2_2.775V
HW_ID2
DNP
- V1 adjusted to 3V for ESCORT / TXVCO
- NOT USED
DNP
- Digital Section - Redcap, Flash, RAM, Display, I/O-Section
VTS_2.3V
DNP
FILT_3.3V
- RFCU, RXU, TXPA, TXFE
IDLE
DNP
V3_2.775V
RAW_B+
- 7.2V nominal.
V4_2.775V
HW_ID1
- AND-GATE for TXCO_WARP
VREF1_2.775V
SOFT_TURN_OFF
150pF
C247
4.7uF
C259
I
VTS_2.3V
VTS_2.3V
0.1uF
AUDIO_PA_ENABLE
D202
MBRM120ET3
C270
PWM1_1.8V
0.1uF
C250
1
SH201
SHIELD
1
48nH
SH200
SHIELD
SOFT_TURN_OFF
E209
R256
20K
10
ILIM_SS
3
IN
13
LX1
14
LX2
PGND
16
6
REF
9
SYNC_PVM
EXT_SPKR_SEL
AIN
2
12
BOOT
8
CC
1
CVH
4
CVL
15
EN_SHDN
11
EN_STBY
7
FB
EXT_SPKR-
MAX1685
U201
5
AGND
C290
270pF
E
C241
0.1uF
C264
270pF
C280
5V_RF
10uF
E200
48nH
150pF
C248
1
2
3
5.5V_RF
C224
10uF
HW_ID1
Q202
OUT1POS
3
OUT2NEG
13
OUT2POS
8
SELECT
6
SVR
5
VCC1
20
VCC2
11
IN2POS
15
MODE
4
NC1
2
NC2
7
NC3
9
NC4
12
NC5
19
OUT1NEG
18
TDA8547
GND1
1
GND2
10
IN1NEG
17
IN1POS
16
IN2NEG
14
130K
U202
R279
HW_ID2
E206
48nH
10uF
C243
R252
20K
C246
150pF
C274
0.1uF
C273
10uF
C402
0.1uF
47K
RT200
0.1uF
C245
47uH
L202
V3_2.775V_DIG
C286
270pF
R244
1K
C260
4.7uF
C261
4.7uF
C219
0.47uF
C340
270pF
V4_LNODCT
E214
48nH
R280
10K
10uF
C210
V2_2.775V
INT_SPKR-
R240
33K
R229
39K
48nH
E205
C240
ENV_TEMP
VGND
0.1uF
0.1uF
C299
C200
10uF
150pF
V4_2.775V
C271
6.8K
R242
C222
10uF
10uF
C255
VTS_2.3V
C201
10uF
R208
820K
48nH
E213
270pF
C262
0.1uF
C263
10uF
C223
15uH
10uF
C282
L201
R243
1K
3.3K
R245
10uF
C211
C212
4.7uF
C229
1.0uF
0.1uF
C242
E208
VREF2_2.775V
48nH
C294
270pF
V1_3V
C295
0.1uF
IN
2
OUT
1
ADP3331
U205
EN_ERR
3
EN_SD
6
FB
5
GND
4
C220
0.47uF
4.7uF
0.1uF
C258
C341
R220
200K
0.1uF
C244
RAW_B+
FILT_3.3V
C283
R278
20K
1
4
5
3
2
0.1uF
HW_ID0
Q201
6
SWB+_dig
VGND
C284
10uF
130K
VREF2_2.775V_DIG
R254
13V
VR201
4.7uF
C257
C266
0.1uF
4.7uF
C209
C291
0.1uF
R255
10
SWB+
R277
330K
10K
R281
C251
150pF
4.7uF
C213
0.1uF
C296
MBRM120ET3
D203
33pF
C272
33uF
C225
C228
0.1uF
0.1uF
C293
18K
R241
F200
10uF
2.5A
C281
150pF
C297
C292
C268
270pF
C226
10uF
10uF
48nH
E212
L200
4.7uH
2
1
0.1uF
.01uF
C253
V3_2.775V
VGND
C234
0.1uF
C401
R287
100K
Q204
48nH
E207
V3_2.775V_GCAP3
GCAP3_3
V4_2.775V_GCAP3
5V_GCAP3
FILT_3.3V_GCAP3
VREF2_GCAP
V3_2.775V_GCAP3
SWB+
5.5V_GCAP3
SWB+
SWB+
V4_DRV
GCAP3_2
GCAP3_7
PWM1_1.8V
GCAP3_1
V2_2.775V_GCAP3
FILT_3.3V_GCAP3
GCAP (Audio & DC) Schematic Diagram - Periphery
Summary of Contents for IMPRES Tetra MTP700
Page 16: ...xvi MTP700 Portable Radio Detailed Service Manual THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 32: ...3 2 MTP700 Portable Radio Detailed Service Manual THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 34: ...4 2 MTP700 Portable Radio Detailed Service Manual THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 122: ...4 1 88 MTP700 Portable Radio Detailed Service Manual THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 154: ...4 2 32 MTP700 Portable Radio Detailed Service Manual THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 206: ...4 2 84 MTP700 Portable Radio Detailed Service Manual THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 226: ...6 14 MTP700 Portable Radio Detailed Service Manual THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 242: ...A 4 MTP700 Portable Radio Detailed Service Manual THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 248: ...C 2 MTP700 Portable Radio Detailed Service Manual THIS PAGE INTENTIONALLY LEFT BLANK ...