GND
1
2
:ON
5
3
VIN
VOUT
(REG.PS+11.6V)
IC7507-
CONT
8
3
5
1
VIN
VOUT
(REG.PS+5V)
QR7401
( :ON)
FROM
TIMER
SECTION
78
IC7501-
PWR SAVE :ON
IC3001- ,IC4009- ,IC4012-
46
8
8
PS+11.6V
1
2
1
7
DISPLAY HEATER
POWER SWITCHING
TRANSFORMER
IC3001- / / /
6
8
25
40
GND
8
3
1
VIN
VOUT
(REG.X SW+5.2V)
5 CONT
X SW+5.2V
2
3
1
4
D7509
2
1
VDD
OUT
(RESET)
5
4
VDD
(RESET)
OUT
P FAIL
RESET
IC7501- 80
IC7501- / / / /
34
69 106
112
8
IC7503- ,IC7504- /
8
18
11
IC7501-
VIN
1
GND
3
2
6
:ON
VOUT
(REG.5V)
IC3001- / /
42
84
94
PP7401
PP7401
PP7401
PS7801
PS7801
PS7801
17
10
3
GND
1
2
:ON
5
3
8
VIN
VOUT
(REG.+5V)
5
GND
K7810
1
7
16
17
B
5V(TUNER)
BTL+30V
5V(VIF)
TU7801
U/V TUNER
TUNER P.C.B.
7
PK7701
NICAM DECODER P.C.B.
IC7301- 26
(RESET)
OUT
VDD
3
1
PK7301
GND
8
5
3
1
VIN
VOUT
(REG.ANA+5V)
CONT
FROM
TIMER
SECTION
51
IC7501-
DI P ON
GND
4
3
:ON
2
5
VIN
VOUT
(REG.AU+5V)
FROM
TIMER
SECTION
50
IC7501-
JC P ON
CONT
GND
8
5
3
1
VIN
VOUT
(REG.ANA+3.3V)
GND
1
5
3
VIN
VOUT
(REG.D+3.3V)
CONT
5
GND
8
3
1
VIN
VOUT
(REG.X SW+3.3V)
82,84,86,88
P7402
P9001
8
1
VIN
(REG.D+1.2V)
VOUT
IC9001
3
IC3201-
~
208
234
D+1.2V
48,52
P7402
P9001
IC3206- / /
6
18 26
ANA+5V
17
P7402
P9001
(REG.DAC+3.3V)
IC4409
VOUT
:ON
6
2
3
GND
1 VIN
5
GND
2
1
VDD
(RESET)
OUT
:ON
QR7506
(INV.SW.)
IC7501- 81
68,70,72,74
P7402
P9001
3
1 VIN
(REG.D+2.5V)
VOUT
IC6008
2
5
VB
GND
5
4
VDD
(RESET)
VOUT
IC6005
42
P7402
P9001
D+3.3V
IC4408,IC3201,IC3206,IC3207
IC3208,IC6001,IC6004,P3201-
(D+3.3V)
IC3201,IC6006,IC6007
D+2.5V
X RESET OUT
ANA+3.3V
IC3201,IC3202,IC3206
(ANA+3.3V)
15
IC7501-
X SW+3.3V
ANA+3.3V
D+3.3V
RESET +5.2V
SYS PFAIL
AU+5V
IC4404- ,IC4405- ,IC4406-
11
8
DAC+3.3V
IC4406- (VDD)
7
DIGITAL P.C.B.
ANA+5V
AU+5V
5V
GND
PS+5V
JC REG.+5V
MAIN P.C.B.
X SW+3.8V
D+1.5V
POWER ON
X SW+5.8V
X SW+12.4V
D7506
2 VCONT
GND
DMR-EH50EB/EG/EP,EH52EG
Power Supply Block Diagram
DMR-EH50EB/EG/EP,EH52EG
Power Supply Block Diagram
108
IC7505- 1
5 CONT
6
2
UNREG +38V
H
H
H
L
L
H
H
H
H
H
H
H
H
H
PP7401 PS7801
13
K7810
EH50EG/EP,
EH52EG
EH50EB
4
7
5V(RFC)
5V(TUNER)
EH50EB
IC7301- / /
3
6
35
28
IC7301-
Содержание DMR-EH50EB
Страница 2: ...2 ...
Страница 3: ...3 ...
Страница 31: ...10 8 HDD 1 Remove ATAPI Connector and HDD Power Connector 2 Remove 4 Screws A to remove HDD Angle with HDD 31 ...
Страница 39: ...12 3 Checking and Repairing of Main P C B 39 ...
Страница 40: ...12 4 Checking and Repairing of DVD RAM Drive 40 ...
Страница 41: ...12 5 Checking and Repairing of HDD 41 ...
Страница 52: ...20 2 Packing Accessories Section 52 ...
Страница 60: ...K7401 D0YBR0000002 CHIP RESISTOR 1 EB 60 ...
Страница 66: ...R7304 D0GB101JA002 1 10W 100 1 66 ...
Страница 74: ......
Страница 75: ......
Страница 76: ...1 A B C D 2 3 4 5 Nicam Decoder P C B DMR EH50EB EG EP EH52EG Nicam Decoder P C B VEP07A51A ...