GND
1
2
:ON
5
3
VIN
VOUT
(REG.PS+11.6V)
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
VIN
VOUT
(REG.+5V)
5
GND
K7810
1
7
16
17
B
5V(TUNER)
BTL+30V
5V(VIF)
TU7801
U/V TUNER
TUNER PACK 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
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
SYS PFAIL
AU+5V
DAC+3.3V
IC4406- (VDD)
7
DIGITAL P.C.B.
ANA+5V
AU+5V
5V
GND
PS+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-EH50GN
Power Supply Block Diagram
108
IC7505- 1
5 CONT
H
H
H
L
L
H
H
H
H
H
H
H
H
H
RESET +5.2V
IC4404- ,IC4405- ,IC4406-
11
8
6
IC4408,IC3201,IC3206,IC3207
IC3208,IC6001,IC6004,P3201-
(D+3.3V)
2
IC3201,IC6006,IC6007
IC7301- / / /
3
6
28 35
JC REG.+5V
IC7507- 8
Содержание DMR-EH50GN
Страница 1: ...ORDER NO DSD0503043C3 DVD Video Recorder DMR EH50GN Vol 1 Colour S Silver Type ...
Страница 7: ...3 Precaution of Laser Diode ...
Страница 9: ...5 Each Button ...
Страница 12: ......
Страница 30: ......
Страница 33: ...12 3 Checking and Repairing of Main P C B ...
Страница 34: ...12 4 Checking and Repairing of DVD RAM Drive ...
Страница 35: ...12 5 Checking and Repairing of HDD ...
Страница 36: ......
Страница 43: ...Ref No MODE E C B REC 3 8 1 2 3 1 PLAY 3 8 1 2 3 1 STOP 3 8 1 2 3 1 Q7802 ...
Страница 58: ...1 A B C 2 3 4 DMR EH50GN Main P C B VEP79107K 1 4 Section Location Map REAR 1 4 2 4 3 4 4 4 FRONT ...
Страница 59: ...5 6 7 8 DMR EH50GN Main P C B VEP79107K 2 4 Section 1 4 2 4 3 4 4 4 Location Map FRONT REAR ...
Страница 60: ...D E F DMR EH50GN Main P C B VEP79107K 3 4 Section 1 4 2 4 3 4 4 4 Location Map FRONT REAR ...
Страница 61: ...DMR EH50GN Main P C B VEP79107K 4 4 Section 1 4 2 4 3 4 4 4 Location Map FRONT REAR ...
Страница 63: ...1 A B C D 2 3 4 5 Tuner Pack P C B DMR EH50GN Tuner Pack P C B VEP07A77C ...
Страница 64: ...1 A B C D F 2 3 4 5 LED P C B Front L P C B DMR EH50GN LED P C B VEP70116B Front L P C B VEP70115A ...
Страница 65: ...1 A B C D 2 3 4 5 Nicam Decoder P C B DMR EH50GN Nicam Decoder P C B VEP07A51A ...
Страница 94: ......
Страница 95: ......
Страница 110: ......
Страница 111: ......