Gcap (Audio & Dc) Schematic Diagram - Periphery - Motorola MTP700 Detailed Service Manual

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