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A
D+1.5V
POWER ON
H
B
C
X SW+3.8V
IC1501
(REG.ANA+5V)
8
VIN
VOUT
1
ANA+5V
GND
CONT
3
5
IC4011
(REG.AU+5V)
4
VIN
VOUT
5
AU+5V
GND
H
:ON
2
3
IC1511
(REG.X SW+5.2V)
D
5 CONT
VOUT
1
X SW+5.2V
8
VIN
GND
3
D7509
2
3
IC7402
(REG.BOOSTER+5V)
1
VIN
VOUT
6
BOOSTER+5V
3
H
:ON
GND
GND
2
5
IC7403
(REG.PS+5V)
8
VIN
VOUT
1
PS+5V
GND
CONT
3
5
IP7501
X SW+12.4V
1
IC7507- 8
IC7401
(REG.PS+11.6V)
1
VIN
VOUT
3
PS+11.6V
H
:ON
GND
2
5
IC1510
QR7401
(
H
(REG.+5V)
E
1
VIN
VOUT
3
JC REG.+5V
H
GND
:ON
5
2
IC7505
(RESET)
P FAIL
L
2
VDD
OUT
1
IC7501- 80
1
IC7501-
34 69 106
/
/
/
108
/
112
4
IC7503-
8
,IC7504-
8
/
18
IC7502
(RESET)
RESET
L
5
VDD
OUT
4
IC7501-
11
IC3001-
42 84 94
/
/
IC3001-
6
/
8
/
25 40
/
T7501
DISPLAY HEATER
POWER SWITCHING
TRANSFORMER
2
1
7
D7506
IC3001-
46
,IC4009-
8
,IC4012-
8
FROM
PWR SAVE
H
:ON
TIMER
IC7501-
78
SECTION
:ON)
FROM
JC P ON
H
TIMER
IC7501-
50
SECTION
SYS PFAIL
IC1504
IC7506
(REG.D+3.3V)
(RESET)
2 VCONT
H
:ON
QR7506
VOUT
3
2
VDD
OUT
1
(INV.SW.)
1
VIN
GND
5
D+3.3V
RESET +5.2V
IC1505
(REG.X SW+3.3V)
5
CONT
VOUT
1
X SW+3.3V
8
VIN
GND
3
IC1502
(REG.ANA+3.3V)
8
VIN
VOUT
1
ANA+3.3V
GND
CONT
3
5
FROM
DI P ON
H
TIMER
IC7501-
51
SECTION
MAIN P.C.B.
IC9001
(REG.D+1.2V)
P7402
P9001
8
VIN
82,84,86,88
VOUT
1
5 CONT
GND
3
P7402
P9001
48,52
IC4409
(REG.DAC+3.3V)
P7402
P9001
1 VIN
17
VOUT
6
H
IC7501- 81
3
H
:ON
GND
GND
2
5
P7402
P9001
68,70,72,74
IC6008
IC7505- 1
(REG.D+2.5V)
1 VIN
VOUT
3
IC7501-
15
2
VB
GND
5
IC6005
(RESET)
5
VDD
VOUT
4
P7402
P9001
42
TUNER PACK P.C.B.
PP7401
PS7801
17
K7810
PP7401
PS7801
10
PP7401
PS7801
3
NICAM DECODER P.C.B.
IC7302
(RESET)
PK7701
PK7301
1
VDD
OUT
7
DMR-EH50GN
Power Supply Block Diagram
DIGITAL P.C.B.
D+1.2V
IC3201-
208
~
234
ANA+5V
IC3206-
6
/
18 26
/
DAC+3.3V
IC4406-
7
(VDD)
AU+5V
IC4404-
11
,IC4405-
8
,IC4406-
6
IC4408,IC3201,IC3206,IC3207
D+3.3V
IC3208,IC6001,IC6004,P3201-
2
(D+3.3V)
D+2.5V
IC3201,IC6006,IC6007
X RESET OUT
IC3201,IC3202,IC3206
ANA+3.3V
(ANA+3.3V)
TU7801
U/V TUNER
1
BOOSTER+B
7
5V(TUNER)
16
BTL+30V
17
5V(VIF)
IC7301-
3
/
6
/
28 35
/
3
IC7301- 26
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