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15 Schematic Diagram
15.1. Interconnection
VIFU P.C.B.
TU7401
1 -
G 2 -
3 -
4 -
5 -
6 -
7 -
8 (AGC)
9 (BT)
10 GND
F 11 SCL
12 SDA
13 GND
14 BM+5V
15 BS POWER(H)
16 BT REG30V
17 IF OUT
18 IF IN
E
19 -
20 -
DU7401
21 -
22 -
23 -
24 VIDEO OUT
25 +B REG5V
D 26 GND
27 GND
NOR/MUTE/
28 JST
DECODER
29 +5V
30 AUDIO(LCH)
31 GND
32 AUDIO(RCH)
33 BIL/STE/
MONO/JST
C 34 -
35 -
3 FAN LOCK
1 FAN PWN
2 GND
P7503
B
FAN
A
1 2 3 4 5 6
51
6
51
6
5
4
3
2
1
7
6
5
4
3
2
1
PK7302
PK7301
QPSK
SW 5V
IIC CLK
IIC DATA
MSD P.C.B.
TU AUDIO IN
DECODER(L)
GND(TUNER)
GND(TUNER)
DECODER(R)
7
TIMER
MAIN NET
VIDEO MAIN
SUB POWER
8
MAIN P.C.B.
RF I/F
AUDIO MAIN
FRONT(L) P.C.B.
P7001 P7504
POW KEY 20 1 POW KEY
POW LWD(H) 19 2 POW LWD(H)
N SW 5V 18 3 N SW 5V
9
L2 FM(L) 17 4 L2 FM(L)
CPN 2Y IN 16 5 CPN 2Y IN
GND 15 6 GND
CPN 2C IN 14 7 CPN 2C IN
GND 13 8 GND
LINE 2V IN 12 9 LINE 2V IN
GND 11 10 GND
AU GND 10 11 AU GND
L2 IN(L) 9 12 L2 IN(L)
AU 9V 8 13 AU 9V
L2 IN(R) 7 14 L2 IN(R)
AU -9V 6 15 AU -9V
KEYIN1(L) 5 16 KEYIN1(L)
KEYIN1(R) 4 17 KEYIN1(R)
GLUE
1394 I/F
KEYIN2(L) 3 18 KEYIN2(L)
AV INPUT
KEYIN2(R) 2 19 KEYIN2(R)
DIGITAL NET
IR 1 20 IR
10
DIGITAL P.C.B.
DVC
AV ENC
AV DEC
SYSCON
AUDIO PB
P3701
1 TPB
2 TPB
3 GND
11
4 TPA
1394
5 TPA
6 GND
DMR-E20EB/EG Interconnection Schematic Diagram
E
B
A
D
C
E
B
A
D
C
P9001 PP9901
XRESET 1 XRESET 1
XFWE 2 XFWE 2
12
TN1AMD1 3 TN1AMD1 3
UARTP2G 4 UARTP2G 4
FRONT(R) P.C.B.
TN1AMD0 5 TN1AMD0 5
UARTG2P 6 UARTG2P 6
DGND 7 DGND 7
8 8
9 9
DGND 10 DGND 10
XDMUTE 11 XDMUTE 11
PS7801 P7501
P3401 XINTP 12 XINTP 12
DD GND 1 18 DD GND
RESET- 1 1 RESET- DGND 13 DGND 13
FL DATA 2 17 FL DATA
GND 2 2 GND XMPREQ 14 XMPREQ 14
DD GND 3 16 DD GND
DD7 3 3 DD7 15 15
FL CLK 4 15 FL CLK
DD8 4 4 DD8 SBMTP 16 SBMTP 16
DD GND 5 14 DD GND
DD6 5 5 DD6 17 17
FL CS 6 13 FL CS
DD9 6 6 DD9 NC1 18 NC1 18
13
7 12
DD5 7 7 DD5 19 19
N SW 5V 8 11 N SW 5V
DD10 8 8 DD10 XINTM 20 XINTM 20
JOG1 9 10 JOG1
DD4 9 9 DD4 RSRVD1 21 RSRVD1 21
DVD RAM DRIVE
JOG2 10 9 JOG2
DD11 10 10 DD11 SBPTM 22 SBPTM 22
GND 11 8 GND
DD3 11 11 DD3 RSRVD2 23 RSRVD2 23
GND 12 7 GND
DD12 12 12 DD12 DGND 24 DGND 24
KEY IN1(R) 13 6 KEY IN1(R)
DD2 13 13 DD2 RSRVD3 25 RSRVD3 25
KEY IN2(R) 14 5 KEY IN2(R)
DD13 14 14 DD13 SCLK 26 SCLK 26
KEY IN3 15 4 KEY IN3
DD1 15 15 DD1 NC2 27 NC2 27
GND 16 3 GND
DD14 16 16 DD14 NC3 28 NC3 28
N SW 14.5V 17 2 N SW 14.5V
DD0 17 17 DD0 DGND 29 DGND 29
N SW 14.5V 18 1 N SW 14.5V
DD15 18 18 DD15 DGND 30 DGND 30
GND 19 19 GND GPYOUT DM 31 GPYOUT DM 31
(KEY PIN) 20 20 (KEY PIN) DGND 32 DGND 32
DMARQ 21 21 DMARQ BPBOUT DM 33 BPBOUT DM 33
GND 22 22 GND DGND 34 DGND 34
14
DIOW- 23 23 DIOW- RPROUT DM 35 RPROUT DM 35
GND 24 24 GND DGND 36 DGND 36
DIOR- 25 25 DIOR- 37 37
GND 26 26 GND DGND 38 DGND 38
IORDY 27 27 IORDY 39 39
CSEL 28 28 CSEL DGND 40 DGND 40
DMACK- 29 29 DMACK- YOUT DM 41 YOUT DM 41
GND
GND 30 30 GND DGND 42 DGND 42
JOG2
JOG1
KEY IN1
INTRQ 31 31 INTRQ COUT DM 43 COUT DM 43
(RESERVED) 32 32 (RESERVED) DGND 44 DGND 44
DA1 33 33 DA1 DGND 45 DGND 45
PDIAG-(NC) 34 34 PDIAG-(NC) DGND 46 DGND 46
DA0 35 35 DA0 CPNYIN DM 47 CPNYIN DM 47
P7802
DA2 36 36 DA2 DGND 48 DGND 48
5
4
3
2
1
CS0- 37 37 CS0- CPNCIN DM 49 CPNCIN DM 49
CS1- 38 38 CS1- DGND 50 DGND 50
15
DASP-(NC) 39 39 DASP-(NC) CPSVIN DM 51 CPSVIN DM 51
GND 40 40 GND BUPD3.3V 52 BUPD3.3V 52
DGND 53 DGND 53
ANA5V 54 ANA5V 54
DGND 55 DGND 55
5
4
3
2
1
ANA3.3V 56 ANA3.3V 56
P7901
ANA3.3V 57 ANA3.3V 57
58 58
GND
DGND 59 DGND 59
JOG2
JOG1
1 12V
KEY IN1
D2.2V 60 D2.2V 60
2 GND
DGND 61 DGND 61
3 GND
D2.5V 62 D2.5V 62
JOG P.C.B.
4 5V
DGND 63 DGND 63
D3V 64 D3V 64
D1.8V 65 D1.8V 65
D1.8V 66 D1.8V 66
16
D1.8V 67 D1.8V 67
D3.3V 68 D3.3V 68
D3.3V 69 D3.3V 69
D5V 70 D5V 70
DGND 71 DGND 71
72 72
AUGND 73 AUGND 73
AUGND 74 AUGND 74
DMR-E20EB/EG Interconnection Schematic Diagram
AADC L 75 AADC L 75
AUGND 76 AUGND 76
AADC R 77 AADC R 77
AUGND 78 AUGND 78
MIXLOUT DM 79 MIXLOUT DM 79
52
AUGND 80 AUGND 80
MIXROUT DM 81 MIXROUT DM 81
AUGND 82 AUGND 82
17
83 83
AUGND 84 AUGND 84
85 85
I/O TERMINAL P.C.B.
PP7403 PS3905
IIC CLK2 17 17 IIC CLK2
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100 IIC DATA2 16 16 IIC DATA2
P50 15 15 P50
AV1-8 14 14 AV1-8
AV2-8 13 13 AV2-8
MIXROUT DM
MIXLOUT DM
AV2/PIN8 M 12 12 AV2/PIN8 M
AV2/PIN8 H 11 11 AV2/PIN8 H
AADC R
IECOUT
AUGND
AUGND
AUGND
AUGND
AUGND
AUGND
AUGND
AUGND
AUGND
AUGND
AUGND
AUGND
AU-9V
PROG ON H 10 10 PROG ON H
AU5V
AU9V
PS 12V 9 9 PS 12V
GND 8 8 GND
DECODER(R) 7 7 DECODER(R)
GND 6 6 GND
DECODER(L) 5 5 DECODER(L)
GND 4 4 GND
PS 5V 3 3 PS 5V
BOOSTER+5V 2 2 BOOSTER+5V
TUNER VIDEO 1 1 TUNER VIDEO
100
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
PP3001 PS3901
LINE 1V IN 1 1 LINE 1V IN
GND 2 2 GND
MIXROUT DM
MIXLOUT DM
CPN 1C IN 3 3 CPN 1C IN
GND 4 4 GND
AADC R
IECOUT
AUGND
AUGND
AUGND
AUGND
AUGND
AUGND
AUGND
AUGND
AUGND
AUGND
AUGND
AUGND
AU-9V
CPN 1Y IN 5 5 CPN 1Y IN
AU5V
AU9V
GND 6 6 GND
7 7
LINE FM L 8 8 LINE FM(L)
GND 9 9 GND
GND 10 10 GND
GND 11 11 GND
L3 IN(R) 12 12 L3 IN(R)
GND 13 13 GND
L3 IN(L) 14 14 L3 IN(L)
GND 15 15 GND
L1 IN(R) 16 16 L1 IN(R)
GND 17 17 GND
L1 IN(L) 18 18 L1 N(L)
PP3002 PS3902
CPN C OUT 1 1 CPN C OUT
GND 2 2 GND
CPN Y OUT 3 3 CPN Y OUT
GND 4 4 GND
CPS V OUT 5 5 CPS V OUT
GND 6 6 GND
REG 5V 7 7 REG 5V
WIDE H 8 8 WIDE H
GND 9 9 GND
MUSE C IN 10 10 MUSE C IN
GND 11 11 GND
MUSE Y IN 12 12 MUSE Y IN
GND 13 13 GND
JSB V IN 14 14 JSB V IN
PP3003 PS3903
G PC Y OUT 1 1 R PC R OUT
GND 2 2 GND
B PC B OUT 3 3 D2H
GND 4 4 GND
480 L 5 5 WIDE H
PRH 6 6 PRH
WIDE H 7 7 480(L)
GND 8 8 GND
AUDIO MUTE 9 9 PCB OUT
GND 10 10 GND
R PC R OUT 11 11 G PC Y OUT
N SW 14.5V
N SW 14.5V
UNREG38V
N SW 5.9V
N SW 5.9V
REG-14V
P OFF L
D3.3V
D3.3V
D1.8V
D1.8V
GND
GND
GND
GND
GND
GND
D5V
D5V
PP9902
10
11
12
13
14
15
16
17
18
19
1
2
3
4
5
6
7
8
9
PP4001 PS3907
MIX L OUT2 1 1 MIX L OUT2
MIX L OUT1 2 2 MIX L OUT1
GND 3 3 GND
MIX R OUT2 4 4 MIX R OUT2
10
11
12
13
14
15
16
17
18
19
MIX R OUT1 5 5 MIX R OUT1
1
2
3
4
1
2
3
4
5
6
7
8
9
P1290
PS1290
GND 6 6 GND
7 7
GND 8 8 GND
9 9
N SW 14.5V
N SW 14.5V
UNREG38V
N SW 5.9V
N SW 5.9V
GND 10 10 GND
REG-14V
P OFF L
11 11
D3.3V
D3.3V
D1.8V
D1.8V
GND
GND
GND
GND
GND
GND
GND
GND
D5V
D5V
12V
GND 12 12 GND
5V
13 13
14 14
15 15
GND 16 16 GND
COX GND 17 17 COX GND
N 18 18
P1101
A
POWER SUPPLY P.C.B.
DMR-E20EB/EG Interconnection Schematic Diagram
17 18 19 20 21
52
15.2. Power Supply
CAUTION
IMPORTANT SAFETY NOTICE:
THE MARK INDICATIONS THE PRIMARY CIRCUIT TO
HOT DISTINGUISH THE PRIMARY FROM THE SECONDARY CIRCUIT.
PAY ATTENTION NOT TO RECEIVE AN ELECTRIC SHOCK
COMPONENTS IDENTIFIED WITH THE MA
WHEN REPLACING ANY OF THESE COMP
DURING REPAIR AND SERVICE OF THE PRODUCTS.
R502 270 R535 270
G R2 27K R3 18K R4 18K R5 18K
FV1 EUMP04D2
D1 S1WB60
D506
FCH6A10
AC+ 1 8
2 9
C528
L506 50V
C12 EXCELDR35V 1
1000P 3
C529
470P R522
100
C13 7
1000P
C6 C501
F 400V
68
0.47
D505
4 ERA22-04
C7 D51
35V MA1
47
C3 C503 C505 C506 C509
275V 0.1 25V 25V 50V
0.1 820 820 22
AC- 6
GA
R516
C8 2.2K
E L1
3300P
GA GA
ELF15N005A
R501