18.3. Main Net Section (Main P.C.B. (1/3)) Schematic Diagram (M)
A
B
C
D
E
F
1
2
3
4
5
6
7
8
9
10
I
G
11
D1.5V
CPNCIN DM
D1.5V
DGND
D1.5V
V YIN DM
D1.5V
DGND
RGB CPSVIN
DGND
B IN
D3.3V
DGND
D3.3V
G IN
D3.3V
DGND
D3.3V
R IN
DGND
BPBOUT DM
DGND
GPYOUT DM
DGND
RPROUT DM
DGND
ANA5V
COUT DM
DGND
ANA5V
YOUT DM
DGND
DGND
DGND
ANA3.3V
MIXROUT DM
MIXLOUT DM
AUGND
IECOUT
AUGND
DGND
AUGND
AADC R
AADC L
AUGND
AUGND
AU5V
XDMUTE
XMPREQ
SBMTP
SBPTM
UARTP2M
XINTM
UARTM2P
SCLK
XINTP
88
87
86
85
84
83
82
81
80
79
78
77
76
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
1
3
2
DGND
TO P9001
DIGITAL P.C.B.
(Audio Net Section)
P7402
XINTP
T
T
G SCLK A
T
G UARTM2P A
T
XINTM
T
G UARTP2M A
T
G SBPTM A
T
G SBMTP A
T
XMPREQ
AV
XDMUTE
AV
AU5V
AV
G AADC L A
AV
G AADC R A
AV
G IEC OUT A
AV
G MIXLOUT DM A
AV
G MIXROUT DM A
AV
G YOUT DM A
AV
G COUT DM A
AV
G RPROUT DM A
AV
G GPYOUT DM A
AV
G BPBOUT DM A
AV
G V YIN DM A
AV
G CIN DM A
ANA3.3V
X SW5.8V
X SW5.8V
X SW5.8V
T
D3.3V
AV
ANA5V
DR5V
DRGND
DR12V
DR P ON
X SW 3.8V
D1.5V
D1.5V
POWER ON
GND
GND
GND
GND
GND
X SW 12.4V
X SW 12.4V
X SW 5.8V
X SW 5.8V
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
1
3
2
TO P1102
POWER P.C.B.
P1501
DR5V
DRGND
DR12V
DR5V
DRGND
DR12V
4
1
3
2
P1502
DR12V
TO
DVD-R/RAM
DRIVE
DR P ON
DIP ON
T
T
1
2
3
4
5
6
7
8
REFERENCE
TERMINAL
SHUTDOWN
BIAS
DRIVER
CURRENT
LIMITTER
GND
(REG.ANA+5V)
IC1501
C0CBCDD00006
CONT
Vin
Vout
AV
X SW 5.8V A
IC
GND
Vadj.
1
Vout
:ON
Vin
2
3
4
5
(REG.PS+11.6V)
IC7401
C0CBCYG00004
1
2
IP1501
K5H3022A0013
P
1
2
3
4
5
6
7
8
REFERENCE
TERMINAL
SHUTDOWN
BIAS
DRIVER
CURRENT
LIMITTER
GND
(REG.X SW+3.3V)
IC1505
C0CBCBD00018
CONT
Vin
Vout
R1503
3300
R1504
100
D1501
MA2C165001VT
L1501
22u
LB7414 J0JHC0000032
LB7408 J0JHC0000032
LB7409 J0JHC0000032
L7404 22u
LB7415 J0JHC0000032
C1508
0.01
T
PWR SAVE
R7402
10K
C1522
330P
T
X SW 3.3V
QR7401
UNR521300L
(PWR SAVE :ON)
AV
G R C IN A
G G IN A
AV
G B IN A
AV
AV
G AV2 VIN A
R7439 22
R7438 22
R7440 22
R7441 22
R7442 22
H
G
F
E
D
C
B
A
C1505
10
R1520
8200
LB1503
J0JKB0000003
LB1504
J0JKB0000003
K7405 0
K7406 0
C1503
10V220
C1504
25V100
R7446
2000
R7444
30
R7445
6800
C7439
0.1
C7401
16V470
C1520
1
C1521
1
R1515
270
C1509
1
C1510
1
ZJ7401
K9ZZ00001279
C7447
1
C7448
1
ZJ7407
K9ZZ00001279
L1504
10u
C1507
10V47
R1511
270
C1527
10
R1513
270
R1512
270
C1526
10V47
LB1506 J0JKB0000003
C1518
6V680
X SW 5.8V
X SW 5.8V
X SW+3.8V
REG.PS+11.6V
D+3.3V
ANA+3.3V
D+3.3V
ANA+3.3V
R7410 820
T
GND
T
DDGND
AV
< ANA+5V >
T
X SW 12.4V
RESET 5.2V
T
ZJ7406
K9ZZ00001279
ITAM2A
ITAM2M
EPG ON
CSYNC IN
T
BOOTREQ
BOOT REQ
T
EPG ON
K7415
EH50EG,EH52EG
EH50EB/EP
T
G CSYNC IN A
R7443 100
K7416
EH50EG,
EH52EG
HDD PFAIL
T
HDD PFAIL
FAN GND
T
ZJ7405
K9ZZ00001279
IMPORTANT SAFETY NOTICE:
COMPONENTS IDENTIFIED WITH THE MARK HAVE THE SPECIAL CHARACTERISTICS
FOR SAFETY.WHEN REPLACING ANY OF THESE COMPONENTS.ONLY THE SAME TYPE.
H
H
H
H
H
H
H
H
H
L
L
A
M:Main Net Section(Page: )
A
AI:A/V I/O Section(Page: )
B
T:Timer Section(Page: )
C
DMR-EH50EB/EG/EP,EH52EG
Main Net Section(Main P.C.B.(1/3))
Schematic Diagram(M)
54
Summary of Contents for DMR-EH50EB
Page 2: ...2 ...
Page 3: ...3 ...
Page 39: ...12 3 Checking and Repairing of Main P C B 39 ...
Page 40: ...12 4 Checking and Repairing of DVD RAM Drive 40 ...
Page 41: ...12 5 Checking and Repairing of HDD 41 ...
Page 52: ...20 2 Packing Accessories Section 52 ...
Page 60: ...K7401 D0YBR0000002 CHIP RESISTOR 1 EB 60 ...
Page 66: ...R7304 D0GB101JA002 1 10W 100 1 66 ...
Page 74: ......
Page 75: ......
Page 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 ...