Schematic Diagram For Pmce4000A & Pmce4002A Controller Board, Uhf 12.5/20/25Khz - Motorola GP68 Service Manual

SWB+
8
VIN
6
5V_TAP
7
FEEDBACK GND
C306 5 ERROR
6
2.2uF
SW480-1
5
B+
U457
LM2936
8 1
VIN VOUT
7 4
GND1 NC
6 5
C313 GND2 NC
0.1uF 3
GND3
2
GND4
+5V
SW401
2
R810 R809 R808 R807
130K 43K 22K 13K
R5 R4 R3 R2
Q404
3
1
R172
2
+5VTX
68K
R171
12K
C169
1uF R166 R167
C164 C163 100K 51K
10nF 150pF
16
2
R435 VDD
Q3B
15 U152 11
51K DB Q2B
7 12
SRDATA DA Q1B
1 13
CB Q0B
9 10
PCCLK CA Q3A
14 3
RB Q2A
6 4
RA Q1A
5
Q0A
VSS
8
R168 R169
51K
100K
R170
100K
CL401 CL402
TX Power Controller Circuitry
Schematic Diagram for PMCE4000A & PMCE4002A
Controller Board, UHF 12.5/20/25KHz
12
6881086C09-O March, 1997
+5V
C305
.018uF
SWB+ +5V_A
U302 U456
1 REG
VOUT
2 6 4
SENSE VIN VOUT
4 C304 2 3
CONTROL RESET
3 4.7uF 1 5
BYPASS GND R301
SHUTDOWN 100K
C301
100pF
TP410
+5V
Y401
C417 C418
7.9488MHz 150pF 2.2uF
VR402
R418 R419
10V
100K
Q401 3 100K
C401 TP403
C402
L401 24pF R401
1
33uH 1pF
1.8MEG
2
31
C404
EXTAL
R402
4700
15pF
33
XTAL
5
22 PB7
VRH
R403 C405
100K
C493 C312 0.1uF
NU 10uF 21 U401
25 VRL
R414
R407 MODB
NU 27 M68HC11E20
14 MODA
R417 1000 PE4
16
MONITOR PE5
18
R487 PE6
51K 20
+5V PE7
R408
51K C491 1
51K
PA0
150pF 8
PB4
7
PB5
63
PA2
38
PC3
CR405
C 3
C409 C407
0.1uF 150pF C406 C408
B
150pF 0.1uF R425 R424
1 160K 220K R423
A
100K
R804 R805 R806
100K 33K 18K
R1
+5V
C4 C3 C2 C1
R415
51K
ADAPT
C471
2
150pF
6
7 1
Q101
U150-2
5
C422 C421
C415 8
NU 3 150pF 150pF
R173 IDAC
+5VTX
200K
C470
CR108 NU
C416
R174
100K NU
L406
SRCLK
470nH
SWB+
L407
C168
R180 C165
R177 SRDATA
22K 130K .1uF
1nF 470nH
4
R175
3 C414
+5VTX +5V_A
1
U150-1 NU
2 100K
C3 C2 C1 R5 R4 R3 R2
C167 R178 R176
100K 100K
4.7nF
C420
150pF
J404
KEYPAD/LCD_DISPLAY_CONNECTOR
TP405
CR403
SRCLK
C410
+5V
150pF
SRDATA
C456 +5V
6 3
E1 E2
SCI R305
4700 1uF
5 2
B1 Q402 B2
C1 C2
C308 1 4
150pF
R306
+5VTX +5VRX
0
C302 C303
R302 150pF 150pF
XTAL_OUT 36
4700
37
NC
23 33 CHIP_SELECT 19
VSS3 24 4_BIT_ATTEN_OUT
VSS2
49 27 20
PL_DPL_DECODER_OUT
VSS1 +5V 5_BIT_ATTEN_OUT
32 PL_CLOCK_STROBE 16
SQ_ATTEN_IN
18
10 U451 SQ_ATTEN_OUT
7
PB2 RX_IN
50 8
AFIC
PD1 PL_DPL_IN
13 AUX_TX_IN 3
GCB5
39
CR401 R420
GCB1
C419 12 EXT_ALERT_TONE_IN 23
10K
47 RX_OUT
0.1uF 2
PD0 GCB4
13 22
UNATTEN_RX_OUT
PE0
CR402 40
SWB+ GCB3
+5V
VAG_BYPASS 28
43
RESET
11 26
GND
PB1 53
R421 R427
PD4
52
100K 6200
PD3
37
PC2 CR404
36
PC1
9
PB3 R422 C425
17
56K 10nF
PE2
19
PE3 R451
R453
C453 C454
180K 51K
1uF 0.47uF
6
7 R452
U452-2
5
SRCLK
C424
8 SWB+ 470K
.039uF
C452
SRDATA
1nF
R433
10K
PCCLK
R470
24K
R480
30K
R488
SW402
2 NU
1
J403
OPTION BD CONNECTOR
C458
.039uF
C457
C459
240pF
150pF R458
5600
B+
VR406 VR403
R459 R460
10V 10V
51K 10K
C413 CR107
U452-1
2 C461
1 C460
NU .018uF L402
3
.39uH
4
.018uF
C462 VR401 C464
10V C467
R466 150pF NU
C451 C449 C411 C412 NU
2200
0.1uF 150pF 150pF 150pF
R462
+5V
R461 6 3 330
100K
E1 E2 R464
47K
R465
R454 5 2
C465
30K B1 Q403 B2
4.7uF
47K
R455
C1 C2
C468
10K 1 4
2.5VDC
4.7nF
R456
470K R463
C469
100K
470pF
R457
C450 56K
0.1uF
C455
0.1uF
SWB+
C488
R484
.039uF
18K
C487
VR405
NU
C485
10V
4.7uF
L404
390nH
R485
680K
C481
R486 C494
R481
.039uF 22 NU
2200
6 4
C483 R483
5
0.1uF 100K VCC VIN
VO1 C489
3
U454 3.4VDC
FC1
SW480-2
AUDIO_AMP 0.1uF L405
8 3.4VDC
SW_ONOFF Audio
2 VO2 1
390nH
FC2 CD
GND
C482 C484
470pF 470pF 7 C490
R482 C486
150pF
100
1uF
Audio Amplifier Circuitry
2 J406
MIC_JACK
3
1
+5VTX
J401
CONN_CONT2
18
R468
B+ B+
0
20
GND
R467 L403
5
10K
+5V +5V
0.18uH
13
MIC +5VRX +5VRX
12
+5VTX +5VTX
19
IDAC IDAC
9
ADAPT ADAPT
6
MODIN
15
SQATIN
7
SQATOUT
215mV RMS 14
DETAUDIO
1
FREF
R428
3
SYNEN
R431 100
10
LOCK
10K R432
11
CSQDET
10K
17
RSSI
R434
8
RFEN
10K R436
230mV RMS 16
FASTSQ
R429 10K
2
SRCLK CLK
R430
100 4
SRDATA DATA
100
J402
CONN_CONT1
1
GND
2
R4 R4
3
R3 R3
4
C4 C4
5
R2 R2
6
MONITOR MONITOR
7
SP_NEG
8
SP_POS
1 9
MIC MIC
4 10
GND1
SPEAKER_JACK
2 11
C3 C3
J405
12
C2 C2
C495
13
NU
C1 C1
14
R1 R1
J407 15
SCI R5 R5
2
SCI_JACK 16
GND2
4
17
C4 C4A
1
18
NC
19
NC1
20
NC2
63D81086C58-O