98
SCHEMATIC DIAGRAM
POWER SUPPLY SCHEMATIC DIAGRAM
11
+
C913
33uF 50V
R713
0.22 1W(Metal oxide)
(OPEN)
D910
22
R809
-24V / 10mA
2
103 1KV
C803
3
POWER DET
390K
R802
1.3KF
R913
THE PARTS IDENTIFIED BY
8D-13
TH801
1K(OPEN)
R909
CN902
6P
1
2
3
4
5
6
F.G.
6V / 1A
UF4004
D912
1.8KF
R912
1
13
L903
22uH(CAP)
+
C912
680uF 16V
R706
4.7K
+
C902
220uF 16V
T801
+
C801
220uF 400V
D703
1N4148
+
C906
1000uF 25V
IC902
KA78R05(G9105)
1
3
2
4
I N
GND
OUT
Dis
C702
101 1KV
R719
2.2KF
223 100V
C806
SD222MY1 250V/AC
CY703
0.68uF 50V
C805
32V
R707
10K
IC702
KA431AZ(AP431A)
+
C907
1000uF 25V
R703
47K 1W
C711
104 100V
F(-)
T
DVD PWR ON
R711
680
R709
100
8
1.5K
R911
IC701
PS2008
2
4
3
8
1
5
6
7
FB
RC
CS
REF
COMP
GND
OUT
VCC
+
47uF 50V
C804
5V / 300mA
0.33 1W(Metal oxide)
R811
1K(OPEN)
R908
+
C904
330uF 50V
3.3V / 550mA
+
33uF 50V
C807
6.3A 250V
SR306(SB360)
D909
R716
2.7K
24Vz
D805
LX801
BSF-3050
12V
GND
R921
LF R251 002
1K
R903
+
C703
47uF 50V
GND
SF24
D906
HS3
BH144-55
-12V / 0A
9
32V
R902
22K(OPEN)
14
Q903
FQP20N06
1
2
3
SPA11N60C3
Q701
CAUTION:
A. GND
+
C903
47uF 50V
-
+
TS4B05G
D801
10K
R810
104 100V(OPEN)
C916
R705
22K
14
+
C712
1uF 50V
14V / 350mA
ipt.co.kr
F(-)
IC903
KA431AZ(AP431A)
2
3
1
UF4004
D803
+
C905
220uF 50V
2K
R904
N.C
SoftS
FB
Isense
N.C
GND
VCC
Gate
IC801
ICE2A(B)S01
1
2
3
4
5
6
7
8
4.7K
R905
2
+
C910
680uF 16V
+
C710
2200uF 50V
R718
27KF
0.3
ICR300DN
1
1
Friday, June 13, 2003
Title
Size
Document Number
Rev
Date:
Sheet
of
HS2
BH200-20
19
5V
14V
3.3M 1/2W
R801
6
B802
3557
SD222MY1 250V/AC
CY803
LIVE
+
C901
330uF 25V
L902
22uH(CAP)
30K 2W
R804
R708
18K
R704
6.8
DV8T911N3A
(EER-42/4215(V))
SF3006PT
D704
B701
3557
18
7
SF24
D905
1
UF4004
D901
PC701
L817B
-24V
HS1
BH40
NEUTRAL
Q902
KTC3198Y
+
C911
1000uF 16V
PC801
L817B
C704
103 100V
4.7K
R808
CN801
LWP1143-02
1N4148
D804
3.9Vz(OPEN)
D902
POWER DET / 5mA
5
32V
6.3A 250V(CAP)
F801
330
R901
12V / 300mA
GND
UF4007
D802
100
R806
36
R805
R710
10
CN901
13P
1
2
3
4
5
6
7
8
9
10
11
12
13
GND
22K
R907
T701
CAP MT. GND
R701
68K 2W
B702
3557
10D 561
VX801
D701
UF4007
L701
DR22(22uH)
DV8T911N3B
EER-35/31
L901
22uH(CAP)
Q901
KTA1273Y
R702
47K 1W
9
HS4
BH144-55
L904
22uH(CAP)
17
6V
474 275V
CX801
+
C914
1000uF 25V
38V / 10mA
R720
2.2K
SR306(SB360)
D908
R721
0.22 1W(Metal oxide)
4.3Vz
D806
DVD PWR ON
104 100V
C917
101 1KV
C808
C707
102 1KV(OPEN)
21
12
GND
C706
102 100V
+
C909
1000uF 25V
16
B801
3557
5.1Vz(OPEN)
D911
680
R910
LX802
BSF-3050
IC901
KA7912
2
3
1
I N
OUT
GND
F(+) / 150mA
DO NOT DEGRADE THE SAFETY OF THE APPLIANCE THROUGH
IMPROPER SERVICING
CN903
6P
1
2
3
4
5
6
WARNING
13
C701
103 1KV
R717
1K
UF4004
D903
GND
101 1KV
C802
20
F(+)
38V
C705
332 100V
UF4004
D904
3.3V
+
C915
680uF 16V
REPLACE ONLY WITH TYPE IDENTICAL TO THOSE IN THE
ORIGINAL CIRCUIT OR SPECIFIED IN THE ’PARTLIST’.
-12V
+
C709
3300uF 50V
FOR CONTINUED PROTECTION
AGAINST RISK OF FIRE
REPLACE ONLY WITH THE SANE
TYPE AND RATING OF FUSE
D702
UF4004
390K
R803
R715
2.7K 2W
R714
4.7 5W(OPEN)
47
R807
(OPEN)
VX802
SR306(SB360)
D907
SPA04N60C3
Q801
22
32V/7A
D. GND
GND
4.7K
R906
474 275V
CX802
+
C908
330uF 25V
MARKS ARE CRITICAL FOR SAFETY.
Summary of Contents for DR-C912B
Page 13: ...11 INSTRUMENT DISASSEMBLY...
Page 37: ...35 EXPLODED VIEW 6 1 EXPLODED VIEW OF DECK ASS Y TOP VIEW...
Page 38: ...36 EXPLODED VIEW 6 2 EXPLODED VIEW OF DECK ASS Y BOTTOM VIEW...
Page 39: ...37 EXPLODED VIEW 6 3 EXPLODED VIEW OF FL ASS Y...
Page 40: ...38 EXPLODED VIEW D0040 D0040 D0020 D0050 D0010 D0060 D0070...
Page 41: ...39 EXPLODED VIEW REMARK PART NAME N O Q TY PART NO MATERIAL...
Page 42: ...40 ELECTRICAL ADJUSTMENT Fig 1 Main board test point control location guide component...
Page 44: ...42 WAVEFORMS VIDEO WAVEFORMS 480 4 6 20 34...
Page 46: ...44 WAVEFORMS 24 25 26 27 31 30 29 28 SERVO WAVEFORMS...
Page 101: ...SERVO SYSCON SCHEMATIC DIAGRAM DVD COMBO RECEIVER 99 SCHEMATIC DIAGRAM...
Page 102: ...100 SCHEMATIC DIAGRAM VIDEO AUDIO SCHEMATIC DIAGRAM DVD COMBO RECEIVER...
Page 103: ...Hi Fi S W PIF MPX SCHEMATIC DIAGRAM DVD COMBO RECEIVER 101 SCHEMATIC DIAGRAM...
Page 104: ...DIGITAL AUDIO VIDEO SCHEMATIC DIAGRAM DVD COMBO RECEIVER 102 SCHEMATIC DIAGRAM...
Page 105: ...RECEIVER FRONT PART SCHEMATIC DIAGRAM 103 SCHEMATIC DIAGRAM...
Page 106: ...104 SCHEMATIC DIAGRAM DIGITAL AMP SCHEMATIC DIAGRAM...
Page 111: ...109 SCHEMATIC DIAGRAM DVD SCHEMATIC DIAGRAM 5 VIDEO AUDIO...
Page 112: ...110 BLOCK DIAGRAM RECEIVER SERVO SYSCON BLOCK DIAGRAM...
Page 113: ...111 BLOCK DIAGRAM COMBO RECEIVER VIDEO BLOCK DIAGRAM...
Page 114: ...NORMAL AUDIO BLOCK DIAGRAM 112 BLOCK DIAGRAM...
Page 116: ...114 BLOCK DIAGRAM DIGITAL AUDIO BLOCK DIAGRAM...
Page 117: ...AMP BLOCK DIAGRAM 115 BLOCK DIAGRAM...
Page 118: ...MAIN PCB CIRCUIT BOARD RTD300 116 CIRCUIT BOARD INDEX...
Page 119: ...117 CIRCUIT BOARD INDEX POWER LOGIC PCB CIRCUIT BOARD RTD300...
Page 120: ...118 CIRCUIT BOARD INDEX AMP PCB CIRCUIT BOARD RTD300...
Page 132: ...686 AHYEON DONG MAPO GU SEOUL KOREA C P O BOX 8003 SEOUL KOREA DAEWOO ELECTRONICS Corp...