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2
3
4
5
6
7
8
9
DMR-EH50EB/EG/EP,EH52EG
Tuner Pack
Schematic Diagram
13
12
11
10
9
8
7
6
5
4
3
2
1
TO PP7401
MAIN P.C.B.
(MAIN NET SECTION)
PS7801
JC REG 5V
SW2
IIC CLK
IIC DATA
SIF OUT
UNREG 38V
TUNER VIDEO IN
GND
3
4
5
7
10
11
12
13
14
15
16
17
18
6
2
SDA
VIDEO OUT
5V(VIF)
BTL+30VIN
SIF OUT
AFC S-CURVE
5V(TUNER)
VIDEO IN
SW(VIF)
SCL
MSCL
AUDIO IN
MSDA
5V(RFC)
TU7801
ENGF7501GF:EH50EG,EH52EG
ENG57D02G1F:EH50EB
ENGF7502GF:EH50EP
9
RFAGC
AUDIO OUT
1
B
14
15
16
17
18
GND
BOOSTER 5V
GND
GND
AFC
K7810
0
R7812
680
R7844
680
R7820
1000
Q7802
2SB1218ARL
(VIDEO BUFFER)
K7808
0
C7828
0.01
LB7802
J0JHC0000032
C7817
6V47
C7809
0.01
C7813 6V47
C7822 0.01
R7815 470
C7818 33P
C7825
100P
LB7803
J0JHC0000032
C7819
33P
R7816
470
C7820 0.1
C7824 6V47
D7802 MAZ4300NMF
C7821 0.01
C7814 50V22
R7817
470
R7811
470
LB7804
J0JHC0000032
R7818
220
TL7401
NOTE:DO NOT USE THE PART NUMBER SHOWN ON THIS DRAWING FOR ORDERING.
THE CORRECT PART NUMBER IS SHOWN IN THE PARTS LIST, AND MAY BE
SLIGHTLY DIFFERNT OR AMENDED SINCE THIS DRAWING WAS PREPARED.
REG.+5V
UNREG.+38V
U/V TUNER
RFC AUDIO
RFC A MUTE
PS 5V
CPS V OUT
AUDIO OUT
R7809
270
LB7801
J0JHC0000032
EH50EB
R7823
5600
QR7807
B1GBCFJA0002
(AUDIO MUTE)
EH50EB
QR7806
UNR211500L
(RFC A MUTE)
K7807
0
R7813
270
LB7805
J0JHC0000032
EH50EB
C7801 0.01
C7802 6V47
EH50EG/EP,
EH52EG
R7814
270
EH50EP
K7811
0
EH50EB
EH50EG/EP,EH52EG
L7802
27u
R7810
10
EH50EB
R7845
0
R7846 5600
C7838
25V47
EH50EG,EH52EG
EH50EP
K7809 0
EH50EB/EG,EH52EG
H
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 ...