Hytera MD78X Service Manual

2
2
1
1
B B
A
A
BACKLIGHT
p2 p1 DOWN
UP
P3
P4
按键
RED
GRN
on\off
P6
P5
BACKMEMU
Emergency
5O ohm matching
P2
BACK
DOWN
C0
R2
R0
R1
P3
P1
UP
C1
C2
P5
EM
p4
SW
C3
P6
MENU
MD78X CONTROL BOARD (J)
MD78X
CSLED
ACC_IO1
PTT
HANDSET_AUDIO
USB_D-
USB_VBUS
INT_MIC
USB_D+
HOOK
ACC_IO2
F_D3
F_D5
F_D6
F_D7
PRST
KB_C3
KB_C2
KB_C1
SPKR1+
SPKR1-
OE_LCD
WE_LCD
F_A1_LCD
CS2_LCD
F_D0
F_D2
CLOCK
DATA
MIC_GROUND
KB_C0
PWB_IN
F_D1
F_D4
KB_R2
KB_R1
KB_R0
CS2_LCD
F_A1_LCD
WE_LCD
OE_LCD
3V3A
5VD
5VD
3V3A
5VD
5VD
3V3A
3V3A
5VD
1V8A
5VD
1V8A
1V8A
3V3A
5VD
3V3A
5VD
5VD
A
B
UART2_RXD
UART2_TXD
PRST
PRST
A
B
UART2_RXD
UART2_TXD
Model Name:
Prepare:
File No.:
Rev:
Date:
Page:
R7
270
R7
270
TP29
TP
TP29
TP
L1
BLM18PG300SN1
L1
BLM18PG300SN1
R19 0R19 0
C37
470pF
C37
470pF
C3
0.1uF
C3
0.1uF
C67
470pF
C67
470pF
TP14
TP
TP14
TP
R39
270
R39
270
C16
270pF
C16
270pF
Q4Q4
2
31
TP11
TP
TP11
TP
TP30
TP
TP30
TP
TP15
TP
TP15
TP
TP16
TP
TP16
TP
U2
CM1440
U2
CM1440
X1
A1
X2
A2
X3
A3
X4
A4
X5
A5
X6
A6
Y1
C1
Y2
C2
Y3
C3
Y4
C4
Y5
C5
Y6
C6
GND1
B1
GND2
B2
GND3
B3
U6U6
Vin
4
Vss
2
CE
3
Nc
1
Vout
5
S11
PF1
S11
PF1
1 2
R40
270
R40
270
C50
470pF
C50
470pF
TP23
TP
TP23
TP
C71
470pF
C71
470pF
TP20
TP
TP20
TP
TP17
TP
TP17
TP
C30
470pF
C30
470pF
D6
KPT-1608SGC
D6
KPT-1608SGC
12
DTC114EE
Q2
DTC114EE
Q2
3
1
2
C8
100pF
C8
100pF
U3
CM1440
U3
CM1440
X1
A1
X2
A2
X3
A3
X4
A4
X5
A5
X6
A6
Y1
C1
Y2
C2
Y3
C3
Y4
C4
Y5
C5
Y6
C6
GND1
B1
GND2
B2
GND3
B3
R15 0R15 0
C52
470pF
C52
470pF
TP13
TP
TP13
TP
M3M3
1
S6
PF1
S6
PF1
1 2
TP12
TP
TP12
TP
S12
PF1
S12
PF1
1 2
R45 1kR45 1k
A1
ANTENNA
A1
ANTENNA
1 2
3
D23
MMBZ6V8ALT1G
D23
MMBZ6V8ALT1G
1
3
2
R12 33R12 33
U5U5
Vin
4
Vss
2
CE
3
Nc
1
Vout
5
C45 0.047uF(NC)C45 0.047uF(NC)
C32
470pF
C32
470pF
D14
MMBZ6V8ALT1G
D14
MMBZ6V8ALT1G
1
3
2
C12
100pF
C12
100pF
R27 0R27 0
C60
470pF
C60
470pF
D9
KAA-3528RG
D9
KAA-3528RG
43 21
C66
4.7uF
C66
4.7uF
L2
BLM18PG300SN1
L2
BLM18PG300SN1
M2M2
1
R5
270
R5
270
C39
0.047uF(NC)
C39
0.047uF(NC)
C56
470pF
C56
470pF
C49
470pF
C49
470pF
D16
KPT-1608SGC
D16
KPT-1608SGC
12
R44 1kR44 1k
TP39
TP
TP39
TP
D15
MMBZ6V8ALT1G
D15
MMBZ6V8ALT1G
1
3
2
D21
MMBZ20VALT1G
D21
MMBZ20VALT1G
1
3
2
S5
PF1
S5
PF1
1 2
TP24
TP
TP24
TP
C5
100pF
C5
100pF
C9
0.1uF
C9
0.1uF
C22
470pF
C22
470pF
R23 0R23 0
U8
PRTR5V0U2X
U8
PRTR5V0U2X
GND
1
IO1
2
IO2
3
VCC
4
TP36
TP
TP36
TP
C20
470pF
C20
470pF
D19
MMBZ20VALT1G
D19
MMBZ20VALT1G
1
3
2
TP10
TP
TP10
TP
C27
470pF
C27
470pF
C69
470pF
C69
470pF
U1U1
Q1
1
Q2
2
Q3
3
Q4
4
Q5
5
Q6
6
Q7
7
GND
8
Q7S
9
SHR
10
SHCP
11
STCP
12
STR
13
DS
14
Q0
15
VCC
16
TP19TP19
C24
0.1uF
C24
0.1uF
R18
0
R18
0
C65
4.7uF
C65
4.7uF
S2
PF1
S2
PF1
1 2
TP35
TP
TP35
TP
C35
470pF
C35
470pF
R42
270
R42
270
C41
0.047uF(NC)
C41
0.047uF(NC)
TP26
UART2_RXD
TP26
UART2_RXD
TP28
TP
TP28
TP
C28
470pF
C28
470pF
C54
470pF
C54
470pF
R8
270
R8
270
R4
270
R4
270
D17
MMBZ6V8ALT1G
D17
MMBZ6V8ALT1G
1
3
2
S10
PF1
S10
PF1
1 2
R47
4.7k
R47
4.7k
R26
10k
R26
10k
TP5
TP
TP5
TP
C4
0.1uF
C4
0.1uF
R16 NCR16 NC
R31
270
R31
270
C11
100pF
C11
100pF
R41
270
R41
270
TP6
TP
TP6
TP
C63 270pFC63 270pF
D18
MMBZ6V8ALT1G
D18
MMBZ6V8ALT1G
1
3
2
R43 1kR43 1k
C13
0.1uF
C13
0.1uF
C43
0.047uF(NC)
C43
0.047uF(NC)
R24 NCR24 NC
TP22
TP
TP22
TP
D8
KAA-3528RG
D8
KAA-3528RG
43 21
D4D4
12
R46
270
R46
270
TP33
TP
TP33
TP
R32
270
R32
270
S8
PF1
S8
PF1
1 2
C53
470pF
C53
470pF
U7
E27-1-21253AL101
U7
E27-1-21253AL101
S1
4
S2
5
C
2
A
1
B
3
K1
6
K2
7
D20
MMBZ6V8ALT1G
D20
MMBZ6V8ALT1G
1
3
2
TP40
GND
TP40
GND
TP7
TP
TP7
TP
C61
0.1uF
C61
0.1uF
R6
10k
R6
10k
D13
MMBZ20VALT1G
D13
MMBZ20VALT1G
1
3
2
M1M1
1
R9 33R9 33
C17
1uF(nc)
C17
1uF(nc)
TP31
TP
TP31
TP
R1
270
R1
270
J3
SPKR
J3
SPKR
SPKR-
2
SPKR+
1
D7D7
12
TP8
TP
TP8
TP
C48
470pF
C48
470pF
S3
PF1
S3
PF1
1 2
R37
270
R37
270
R20 10R20 10
C51
470pF
C51
470pF
C25
NC
C25
NC
C47
470pF
C47
470pF
D11
KAA-3528RG
D11
KAA-3528RG
43 21
C57
470pF
C57
470pF
C19
470pF
C19
470pF
TP1
TP
TP1
TP
L3
NC(BLM18PG300SN1)
L3
NC(BLM18PG300SN1)
TP9
TP
TP9
TP
D24D24
12
TP25
UART2_TXD
TP25
UART2_TXD
U4
CM1440
U4
CM1440
X1
A1
X2
A2
X3
A3
X4
A4
X5
A5
X6
A6
Y1
C1
Y2
C2
Y3
C3
Y4
C4
Y5
C5
Y6
C6
GND1
B1
GND2
B2
GND3
B3
R3
270
R3
270
S9
PF1
S9
PF1
1 2
C38
0.047uF(NC)
C38
0.047uF(NC)
C10
100pF
C10
100pF
D12
KAA-3528RG
D12
KAA-3528RG
43 21
C58
470pF
C58
470pF
C64 3900pFC64 3900pF
D3
MMBZ6V8ALT1G
D3
MMBZ6V8ALT1G
1
3
2
J4
CON10_MMP
J4
CON10_MMP
ACC_I00
1
PTT
2
HANDSET_AUDIO
3
USB_D-
4
MIC_GROUND
5
USB_VBUS
6
INT_MIC
7
USB_D+
8
HOOK
9
ACC_IO1
10
C44
0.047uF(NC)
C44
0.047uF(NC)
C23
0.1uF
C23
0.1uF
R21 10R21 10
R25
10k
R25
10k
C31
470pF
C31
470pF
R38
270
R38
270
C62
470pF
C62
470pF
R36
10k
R36
10k
C1
100pF
C1
100pF
R35
10k
R35
10k
TP27
TP
TP27
TP
C36
470pF
C36
470pF
TP4
TP
TP4
TP
C40
0.047uF
C40
0.047uF
C68
470pF
C68
470pF
C29
470pF
C29
470pF
R33
10k
R33
10k
C46
0.047uF
C46
0.047uF
R28
0
R28
0
R22 10R22 10
TP38
TP
TP38
TP
C21
470pF
C21
470pF
C15
270pF
C15
270pF
S7
SKQMBBE010
S7
SKQMBBE010
1 2
C33
470pF
C33
470pF
R34
10k
R34
10k
R14 NC(47)R14 NC(47)
DTC114EE
Q3
DTC114EE
Q3
3
1
2
D22
MMBZ20VALT1G
D22
MMBZ20VALT1G
1
3
2
D10
MMBZ6V8ALT1G
D10
MMBZ6V8ALT1G
1
3
2
TP21
TP
TP21
TP
C26
NC
C26
NC
D1
KPT-1608SGC
D1
KPT-1608SGC
12
TP37
TP
TP37
TP
S1
SKQMBBE010
S1
SKQMBBE010
1 2
R10
33
R10
33
C34
470pF
C34
470pF
C59
470pF
C59
470pF
M4M4
1
R2
270
R2
270
TP18TP18
TP34
TP
TP34
TP
C70
470pF
C70
470pF
R30 0R30 0
R29 0R29 0
C18
1uF(nc)
C18
1uF(nc)
J1
CON40_MAIN
J1
CON40_MAIN
INT_MIC
1
MIC_GROUND
2
ACC_IO1
3
USB_VBUS
4
HOOK_MMP
5
PTT_MMP
6
USB_D-
7
USB_D+
8
ACC_IO2
9
SPKR1-
14
SPKR1+
13
HANDSET_AUDIO
12
UART2_RXD
10
UART2_TXD
11
PWB_IN
40
GND
39
PRST
16
5VD
15
KB_C0
17
KB_C1
18
KB_C2
19
KB_C3
20
KB_R0
21
KB_R1
22
KB_R2
23
S/P_CSLED
24
S/P_CLOCK
25
S/P_DATA
26
WE_LCD
28
GND1
41
GND2
42
CS2_LCD
29
F_A1_LCD
30
F_D7_LCD
31
F_D6_LCD
32
F_D5_LCD
33
F_D4_LCD
34
F_D3_LCD
35
F_D2_LCD
36
F_D1_LCD
37
F_D0_LCD
38
OE_LCD
27
C6
100pF
C6
100pF
TP2
TP
TP2
TP
C42 0.047ufC42 0.047uf
R17
33
R17
33
D5D5
12
C14
0.1uF
C14
0.1uF
R13
NC
R13
NC
S4
PF1
S4
PF1
1 2
R11 33R11 33
W1
FIXER
W1
FIXER
Q1
MMBT3904LT
Q1
MMBT3904LT
1
32
C55
470pF
C55
470pF
C7
0.1uF
C7
0.1uF
J2J2
GND
1
VCI1
2
VCI2
3
IOVCC
4
FLM
5
CS
6
RS
7
WR
8
RD
9
DB0
10
DB1
11
DB2
12
DB3
13
DB4
14
DB5
15
DB6
16
DB7
17
DB8
18
DB9
19
DB10
20
DB11
21
DB12
22
DB13
23
DB14
24
DB15
25
DB16
26
DB17
27
RESET
28
IM3
29
IM0
30
LED_A
31
LED_K1
32
LED_K2
33
LED_K3
34
GND1
35
GND2
36
D2D2
12
C2
0.1uF
C2
0.1uF
TP3
TP
TP3
TP
TP32
TP
TP32
TP
Front Panel Circuit
59
11. Schematic Diagram

Hytera MD78X Specifications

General

Brand	Hytera
Model	MD78X
Category	Radio
Language	English