Service Manual

MM-E 2072-09333-00
+
-
GND
VCC
EN
GND
RBP
VIN
VOUT
V
V
VIN
SD
PGND
AGND
FB
COMP
ISEN
DR
S
D D D
G SD S
D
S
G
GND
GND
IN
OUT
S
D
G
EN
GND
RBP
VIN
VOUT
+
-
+
+
+
+
GND
IN
OUT
2
D
S
G
D
S
G
TRUNK ONLY
TRUNK ONLY
4V3
2+1 2+3
5+6
ACTIVE HIGH
'1'=>9V0
'0'=>6V3
5+4
ACTVIVE LOW
ACTIVE HIGH
ACTVIVE HIGH
ACTIVE GND
TO CPU
.5W
4V3
14V7
NEW LEDS
ACTVIVE HIGH
1W
ON_OFF_CONT
R603 51.1
R537
51.1
14V7
LCD_HEAT_EN
1W
33.2
R204
33.2
R539
POW_OFF_CPU
VHEAT_LCD_FOR
R167
475
0.125
R159
5.11K
0.125
3
1
2
Q501
BST82
R517
100
R509
100
3
1
2
Q506
BST82
U6_FB
100
R508
511
R512
R602
511
R520
100
D
S
G
2
1
3
D
S
G
2
1
3
BST82
Q502
Q505
BST82
4
1 3
U502
MC78M08BDTRK
VLED_BL_LCD
10K
R522
LCD_BL_LEVEL
R541
86.6
10K
R523
5V0
PTT_MIC_P
VDD_LCD_3V0
14V7
VLED_BL_KB
13V8_DC
5V0_INT
C85
4.7U
50V
C76
4.7U
50V
C73
4.7U
50V
C97
4.7U
50V
C72
4.7U
50V
C71
4.7U
50V
8V0_AUDIO
C507
10U
25V
C510
15U
16V
C80
1U
100V
VLED_HEAT_EN
L501
10U
C81
100N
50V
50V
100N
C86
50V
100N
C95
C508
100N
25V
C512
22U
35V
MMSD4148T1
CR501
R530
33.2
1W
25V
15U
C99
13V8_DC
C98
15U
25V
13V8_RADIO_TRUNK
C84
15U
25V
100V
1U
C511
3V3
5V0_INT
R177
0.0
1.10K
R515
14V7_CONT3
33.2R201
VHEAT_LCD
R152
0.0
R178
3.01K
R155
0.0
R160
511
R197
31.6K
C90
100P
C83
47U
35V
C79
47U
35V
R519
10K
R536
8.25K
0.125
R581
2.67K
0.125
R158
4.75K
0.125
1
3
VR1
MMBZ5229BLT1
R157
3.01K
0.125
C82
1U
100V
13V8_RADIO_TRUNK
3
2 4
1 5
U4
LP3985IM5-3.3
L8
33UH
R540
20
ON_OFF_SW
R528
10K
3V3
2
3
1
Q504
MMBT4403LT3
D
S
G
3
1
2
Q507
BST82
R507
100
VLED_BL_LCD
4
1
3
Q1
IRFR9220
R186
10K
2 4
1 3
U501
LM2940SX-5.0
POW_OFF_CPU
10
R166
13V8_DC
1K
R514
10K
R527
R526
10K
LAB
3V3
R516
3.01K
3
1
2
Q7
BST82
C89
100N
100N
C87
100N
C88
5 6 7 8
3 2 1
4
Q2
SI4450DY-TR
R156
5.1
0.1
R196
14V7_CONT2
C509
100N
10K
R524
LCD_HEAT_EN
VLED_BL_KB
8V0_AUDIO
VHEAT_LCD
PTT_MIC_P
R151 100
40.2R538
5V0
R170 33.2
LCD_BL_EN
2
3
1
Q503
MMBT4403LT3
3V3
14V7
R194
30.1K
7
8
14
10
9
74HC132D
U3
7
11
14
13
12
74HC132D
U3
2
1
3
5
4
6
SW26
MHPS2266
VDD_LCD_3V0
5V0
8
7
5
4 3
2
1
6
U6
LM3488MM
C92
100N
R226 10
CR2
MBRS360T3
4
5
14
6
7
U3
74HC132D
2
34
1
22U
T1
33.2
R203
PTT_MIC_N
3
2
1
8
4
U7
LM2903D
R195
0.1
C93
100N
R187
10K
R193
4.12K
C96
22P
3
2 4
1 5
U5
LP3985IM5X-3.0
C78
100N
1
2
7
14
3
U3
74HC132D
1
3
2
Q3
MMBT2222ALT1
C94
220P
C91
100N
1
3
VR2
MMBZ5229BLT1
1
3
2
Q4
MMBT2222ALT1
R198
4.75K
6
5
7
48
U7
LM2903D
R207
5.11K
R206
5.11K
1
TP3
R221 10
10R220
33.2
R202
ON_OFF_CONT
3V3
13V8_DC
PTT_MIC_N
LCD_BL_EN
LCD_BL_LEVEL
LCD_HEAT_LEVEL
KB_BL_LEVEL
KB_BL_EN
5V0
10K
R518
R513
1K
R521
10K
10K
R525
R535 0.0
0.0R534
C513
100N
LCD_HEAT_LEVEL
ON_OFF_SW
5V0_RADIO
5V0_RADIO
KB_BL_EN
50V
4.7U
C70
50V
4.7U
C74
1 2
DS27
KPT-1608CGCK-RY
1 2
KPT-1608CGCK-RY
DS26
13V8_DC
Figure A-3.D. CONTROL HEAD Module, Schematic Circuit Diagram (Sheet 4 of 6 – Power Supply Circuits)
A-57/A-58