Hytera MD78X Service Manual page 358

5VD
UP
D1 D1
DOWN
P4
D5 D5
p3
B
R1 R1
33 33
U5 U5
5VD
POWER IC POWER IC
L1 L1
4
Vin
BLM18PG300SN1 BLM18PG300SN1
2
Vss
C13 C13
1uf 1uf
3
CE
U6 U6
5VD
POWER IC POWER IC
L3 L3
4
Vin
NC(BLM18PG300SN1) NC(BLM18PG300SN1)
2
Vss
C17 C17
1uf 1uf
3
CE
A1 A1
ANTENNA ANTENNA
1 2
R28 R28
0 0
R30 R30 0 0
C25 C25 C26 C26
NC NC
NC NC
A
2
MD78X/MD78XG Schematic Diagram (Front Panel)
5VD 5VD
5VD 5VD
MENU
R4 R4 R3 R3 R2 R2 R5 R5
56 56 56 56 56 56 56 56
p1 BACK
p2 D8 D8 D9 D9
KAA-3528RG KAA-3528RG KAA-3528RG KAA-3528RG
R7 R7 R8 R8
33 33 33 33
D11 D11 D12 D12
KAA-3528RG KAA-3528RG KAA-3528RG KAA-3528RG
3
Q1 Q1
R12 R12
2
Q2 Q2
2
DTC114EE DTC114EE
3
2SK1824 2SK1824
1
RED
Q3 Q3
DTC114EE DTC114EE
1
3V3A
5 R23 R23 0 0
Vout
C14 C14
1uf 1uf
1
Nc
1V8A
5 R24 R24 NC NC S1 S1
Vout
SKQMBBE010 SKQMBBE010
C18 C18 1 2
nc(1uf) nc(1uf)
470PF 470PF
1 C19 C19
Nc
3V3A TP25 TP25 TP26 TP26
10K 10K 10K 10K
R25 R25 R26 R26 TP TP TP TP
S2 S2
PF1 PF1
U7 U7 1
4 5
S1 S2
R27 R27 0 0
1
A A
2 3
C B B
R29 R29 0 0
S8 S8
E27 E27 C23 C23 C24 C24 PF1 PF1
W1 W1
0.1uf 0.1uf 0.1uf 0.1uf
1
FIXER FIXER
3V3A
R36 R36 R35 R35 R34 R34 R33 R33 J4 J4
ACC_I00
10K 10K 10K 10K 10K 10K 10K 10K
PTT
HANDSET_AUDIO
CS2_LCD
USB_D-
MIC_GROUND
F_A1_LCD
USB_VBUS
INT_MIC
WE_LCD
USB_D+
HOOK
OE_LCD
ACC_IO1
CON10_MMP CON10_MMP
2
3V3A
C1 C1 C3 C3
100pf 100pf 0.1uf 0.1uf
R6 R6
U2 U2
EMI FILTER EMI FILTER
10K 10K
U1 U1
C1
A
Y1 X1
LOGIC IC LOGIC IC
C2
B
Y2 X2
15 11 C3
Q0 SHCP Y3 X3
1 12 C4
Q1 STCP Y4 X4
2 10 C5
Q2 SHR Y5 X5
3 13 C6
PRST
Q3 STR Y6 X6
4
Q4
C4 C4 D10 D10
5
Q5
0.1uf 0.1uf
6 14 MMBZ5V6ALT1G MMBZ5V6ALT1G
Q6 DS J2 J2
7
Q7 17 18
9 DB7 DB8
Q7S 16 19
DB6 DB9
15 20
DB5 DB10
14 21
DB4 DB11
13 22
DB3 DB12
R10 R10 33 33
12 23
DB2 DB13
11 24
DB1 DB14
1V8A
10 25
DB0 DB15
33 33
9 26
RD DB16
8 27
WR DB17
R13 R13
7 28
RS RESET
6 29
CS IM3
R17 R17 33 33 NC NC
5 30
R18 R18 0 0 FLM IM0
2
3V3A
4 31
IOVCC LED_A
3 32
VCI2 LED_K1
2 33
VCI1 LED_K2
C6 C6
1 34
C9 C9 GND LED_K3
100p 100p
36 35
0.1uf 0.1uf GND2 GND1
C10 C10
FPC CONNECTER FPC CONNECTER
TP20 TP20 TP21 TP21 TP22 TP22 TP23 TP23 TP24 TP24
TP TP TP TP TP TP TP TP TP TP J3 J3
SPKR SPKR
SPKR-
SPKR+
C20 C20
470pf 470pf
C21 C21
470pf 470pf
C22 C22
S3 S3 S4 S4 S6 S6
S5 S5
PF1 PF1 PF1 PF1 PF1 PF1
PF1 PF1 470pf 470pf
2 1 2 1 2 1 2 1
P3
P6 MEMU UP BACK
S9 S9 S10 S10 S11 S11 S12 S12
PF1 PF1 PF1 PF1 PF1 PF1 PF1 PF1
2 1 2 1 2 1 2 1
P5 p2 p1 DOWN P4
C28 C28
C27 C27
470pf 470pf
470pf 470pf
D14 D14 D15 D15 D16 D16
MMBZ5V6ALT1G MMBZ5V6ALT1G MMBZ5V6ALT1G MMBZ5V6ALT1G MMBZ5V6ALT1G MMBZ5V6ALT1G
R31 R31 C32 C32 C33 C33
C31 C31
470pf 470pf 470pf 470pf
0 0 470PF 470PF
1
2
3
4
5
6
7
8
9
10
5VD
U8 U8
R32 R32
10k 10k
4 2 D21 D21
VCC IO1
MMBZ6V8ALT1G MMBZ6V8ALT1G
1 3
GND IO2
PRTR5V0U2X PRTR5V0U2X
345
1
M1 M1 M2 M2 M3 M3 M4 M4
TP1 TP1 TP10 TP10 TP11 TP11 TP4 TP4 TP5 TP5 TP12 TP12 TP13 TP13 TP2 TP2 TP6 TP6 TP3 TP3 TP7 TP7 TP14 TP14 TP15 TP15
TP TP TP TP TP TP TP TP TP TP TP TP TP TP TP TP TP TP TP TP TP TP TP TP TP TP
A1
UART2_RXD
A2
UART2_TXD
A3
A4
U3 U3
A5
EMI FILTER EMI FILTER
A6
C1 A1
Y1 X1
C2 A2
Y2 X2
C3 A3
Y3 X3
R9 R9 33 33 C4 A4
Y4 X4
C5 A5
Y5 X5
C6 A6
Y6 X6
U4 U4
EMI FILTER EMI FILTER
C1 A1
Y1 X1
C2 A2
Y2 X2
C3 A3
Y3 X3 R11 R11
C4 A4
Y4 X4
C5 A5
Y5 X5
R14 R14
C6 A6
3V3A Y6 X6
1V8A
R15 R15 0 0
R16 R16 NC NC
R19 R19 0 0 C5 C5
R20 R20 10 10 100p 100p
R21 R21 10 10 C7 C7
C8 C8
R22 R22 10 10
0.1uf 0.1uf 100p 100p
C11 C11 C12 C12
100p 100p 100p 100p 100p 100p
Q4 Q4
2
2SK1824 2SK1824
TP18 TP18 TP19 TP19
TP TP TP TP
D13 D13
MMBZ20VALT1G MMBZ20VALT1G
C16 C16
C15 C15
0.01uf 0.01uf
0.01uf 0.01uf
SPKR1-
2
SPKR1+
1
KB_C0
KB_C1
KB_C2
KB_C3
KB_R0
KB_R1
KB_R2
2
S7 S7
SKQMBBE010 SKQMBBE010
1 2
TP29 TP29
TP27 TP27
TP TP
TP TP
TP28 TP28
2
TP TP
C29 C29 C30 C30
470pf 470pf 470pf 470pf
D17 D17 D18 D18 D19 D19 D20 D20
MMBZ5V6ALT1G MMBZ5V6ALT1G MMBZ5V6ALT1G MMBZ5V6ALT1G MMBZ20VALT1G MMBZ20VALT1G MMBZ5V6ALT1G MMBZ5V6ALT1G
C37 C37
C36 C36
C34 C34 C35 C35
470pf 470pf
470pf 470pf 470pf 470pf 470pf 470pf
TP30 TP30 TP31 TP31 TP32 TP32 TP33 TP33 TP34 TP34 TP35 TP35 TP36 TP36 TP37 TP37 TP38 TP38 TP39 TP39
TP TP TP TP TP TP TP TP TP TP TP TP TP TP TP TP TP TP TP TP
1
5VD
TP8 TP8 TP16 TP16 TP9 TP9 TP17 TP17
TP TP TP TP TP TP TP TP
D3 D3
MMBZ6V8ALT1G MMBZ6V8ALT1G
C2 C2
100pf 100pf
J1 J1
PRST
CLOCK
25
S/P_CLOCK
CSLED
24
S/P_CSLED
DATA
26
S/P_DATA
CS2_LCD
29
CS2_LCD
F_A1_LCD
30
F_A1_LCD
WE_LCD
28
WE_LCD
OE_LCD
27
OE_LCD
F_D0
38
F_D0_LCD
F_D1
37
F_D1_LCD
F_D2
36
F_D2_LCD
F_D3
35
F_D3_LCD
F_D4
34
F_D4_LCD
F_D5
33
F_D5_LCD
F_D6
32
F_D6_LCD
F_D7
31
F_D7_LCD
33 33 PRST
16
PRST
10
UART2_RXD UART2_RXD
11
NC(47) NC(47) UART2_TXD UART2_TXD
39
GND
15
5VD
14
SPKR1-
13
SPKR1+
PWB_IN
40
PWB_IN
17
KB_C0
18
KB_C1
19
KB_C2
20
KB_C3
21
KB_R0
22
KB_R1
23
KB_R2
ACC_IO1 3
ACC_IO1
PTT 6
PTT_MMP
HANDSET_AUDIO 12
HANDSET_AUDIO
USB_D- 7
USB_D-
MIC_GROUND 2
MIC_GROUND
USB_VBUS 4
USB_VBUS
INT_MIC 1
INT_MIC
USB_D+ 8
USB_D+
HOOK 5
HOOK_MMP
ACC_IO2 9
ACC_IO2
CON40_MAIN CON40_MAIN
B
A
V1.0