Sharp CD-BK260V Service Manual Page 44
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CD-BK260V/CD-BK2700V/CD-BK280V
– 44 –
WAVEFORMS OF CD CIRCUIT
T
FDO
TDO
Stopped
CH1=500 mV
DC 10:1
CH3=500 mV
DC 10:1
500 ms/div
(500 ms/div)
NORM:20 kS/s
1
3
=Record Length=
Smoothing : ON CH1 : 0.000 V
CH2 : 0.0 V
Main : 100 K
Zoom : 2 K
Mode : AUTO
Type : EDGE CH1
Delay : 0.0 ns
Hold off : 0.2 µs
CH3 : 0.000 V
CH4 : 0.00 V
BW : FULL
=Trigger==Filter= =Offset=
CH1
v/DIV
500 mV
1
IC2 24
2
IC2 23
T
FDO
DRF
TE
Stopped
CH1=500 mV
DC 10:1
CH2=10 V
DC 10:1
CH3=1 V
DC 10:1
500 ms/div
(500 m s/div)
NORM:20 kS/s
1
2
3
=Record Length=
Smoothing : ON CH1 : 0.000 V
CH2 : 0.0 V
Main : 100 K
Zoom : 2 K
Mode : AUTO
Type : EDGE CH1
Delay : 0.0 ns
Hold off : 0.2 µs
CH3 : 0.00 V
CH4 : 0.00 V
BW : FULL
=Trigger==Filter= =Offset=
-3 div -1 div 0 div +1 div +3 div
CH Position To
CH2
Position
0.20 div
1
IC2 24
3
IC2 72
4
IC1 18 ,
IC2 16
Vp-p=1.0 V~1.3 V
0.5 mV/div,0.5 µsec/div
5
IC1 27
T
T
TE
DRF
Stopped
CH1=10 V
DC 10:1
CH2=1 V
DC 10:1
100 ms/div
(100 ms/div)
NORM:100 kS/s
2
1
=Record Length=
Smoothing : ON CH1 : 0.0 V
CH2 : 0.00 V
Main : 100 K
Zoom : 2 K
Mode : NORMAL
Type : EDGE CH1
Delay : 2.924 ms
Hold off : 0.2 µs
CH3 : 0.00 V
CH4 : 0.00 V
BW : FULL
=Trigger=
=Filter= =Offset=
3
IC2 72
4
IC1 18 ,
IC2 16
T
T
FDO
SPDO
Stopped
CH1=200 mV
DC 10:1
CH2=500 mV
DC 10:1
500 ms/div
1999/04/07 09:51:15
(500 ms/div)
NORM:20 kS/s
2
1
=Record Length=
Smoothing : ON CH1 : 0.000 V
CH2 : 0.000 V
Main : 100 K
Zoom : 2 K
Mode : NORMAL
Type : EDGE CH2
Delay : 2.924 ms
Hold off : 0.2 µs
CH3 : 0.00 V
CH4 : 0.00 V
BW : FULL
=Trigger=
=Filter= =Offset=
1
IC2 24
6
IC2 25
T
FDO
PDO2
PDO1
Stopped
CH1=500 mV
DC 10:1
CH3=1 V
DC 10:1
CH4=1 V
DC 10:1
500 ms/div
(500 ms/div)
NORM:20 kS/s
1
4
3
=Record Length=
Smoothing : ON CH1 : 0.000 V
CH2 : 0.0 V
Main : 100 K
Zoom : 2 K
Mode : AUTO
Type : EDGE CH2
Delay : 0.0 ns
Hold off : 0.2 µs
CH3 : 0.00 V
CH4 : 0.00 V
BW : FULL
=Trigger==Filter= =Offset=
CH1
v/DIV
500 mV
1999/04/05 17:33:17
1
IC2 24
7
IC2 1
8
IC2 2
T
T
DOUT
Stopped
CH1=2 V
DC 10:1
500 ns/div
1999/04/07 09:25:28
(500 ns/div)
NORM:200 MS/s
1
=Record Length=
Smoothing : ON CH1 : 0.00 V
CH2 : 0.00 V
Main : 1 K
Zoom : 100
Mode : NORMAL
Type : EDGE CH1
Delay : 2.887 ms
Hold off : 0.2 µs
CH3 : 0.00 V
CH4 : 0.00 V
BW : FULL
=Trigger=
=Filter= =Offset=
9
IC2 37
T
T
DATA
DATACK
LRSY
Stopped
CH1=2 V
DC 10:1
CH2=2 V
DC 10:1
CH3=2 V
DC 10:1
5 µs/div
(5 µs/div)
NORM:100 kS/s
1
2
3
=Record Length=
Smoothing : ON CH1 : 0.00 V
CH2 : 0.00 V
Main : 5 K
Zoom : 100
Mode : AUTO
Type : EDGE CH3
Delay : 0.0 ns
Hold off : 0.2 µs
CH3 : 0.00 V
CH4 : 0.00 V
BW : FULL
=Trigger==Filter= =Offset=
CH3
v/DIV
2 V
1999/04/05 20:50:17
10
IC2 57
IC2 58
IC2 59
11
12
T
T
EFBL
FDO
TE
Stopped
CH1=500 mV
DC 10:1
CH2=200 mV
DC 10:1
CH3=1 V
DC 10:1
500 ms/div
(500ms/div)
NORM:20 kS/s
1
2
3
=Record Length=
Smoothing : ON CH1 : 0.000 V
CH2 : 0.000 V
Main : 100 K
Zoom : 2 k
Mode : SINGLE
Type : EDGE CH1
Delay : 0.0 ns
Hold off : 0.2 µs
CH3 : 0.00 V
CH4 : 0.00 V
BW : FULL
=Trigger==Filter= =Offset=
CH2
v/DIV
200 mV
1999/04/05 20:26:47
1
IC2 24
4
IC1 18 ,
IC2 16
IC1 13 ,
IC2 22
13
- SERVICE MANUAL 1
- VOLTAGE SELECTION 2
- SPECIFICATIONS 3
- Front panel 4
- Rear panel 5
- Speaker system 5
- Remote control 6
- Setting the Clock 7
- Remote Control 8
- Lock Lever 10
- CD Player Unit 10
- (Bottom View) 10
- TAPE MECHANISM SECTION 12
- ADJUSTMENT 13
- CD ERROR CODE DESCRIPTION 14
- CD SECTION 14
- TUNER SECTION 14
- C D T E S T 15
- VIDEO CD SECTION 16
- TV monitor 17
- NOTES ON SCHEMATIC DIAGRAM 18
- TYPES OF TRANSISTOR AND LED 18
- LC78636E 19
- SERVO/SIGNAL 19
- IX0411AW 21
- MAIN PWB-A1(1/3) 22
- 8 9 10 11 12 23
- KIA7810AP 24
- MAIN PWB-A1 (2/3) 25
- POWER PWB-A2 25
- FM SIGNAL 25
- MAIN PWB-A1(3/3) 26
- DISPLAY PWB-B1 28
- CD VIDEO PWB-C (1/2) 30
- CD SIGNAL 31
- CD VIDEO PWB-C (2/2) 32
- VIDEO OUT SIGNAL 33
- MIC PWB-G1 34
- SURROUN SPEAKER PWB-G2 36
- VIDEO OUT PWB-B3 40
- CD VIDEO PWB-C (TOP VIEW) 40
- SPINDLE MOTOR 42
- SLED MOTOR 42
- WAVEFORMS OF CD CIRCUIT 44
- TROUBLE SHOOTING 45
- FUNCTION TABLE OF IC 49
- M63001FP 50
- Row and column address buffer 54
- Figure 56 BLOCK DIAGRAM OF IC 56
- Figure 57 BLOCK DIAGRAM OF IC 57
- MAIN LOGIC 59
- FL DISPLAY 60
- CD-BK260V 61
- CD-BK2700V 61
- CD-BK280V 61
- DESCRIPTION 62
- PARTS CODE 62
- NO. PARTS CODE 62
- DESCRIPTIONPARTS CODE 63
- RESISTORS 64
- OTHER CIRCUITRY PARTS 66
- CD MECHANISM PARTS 67
- CABINET PARTS 67
- ACCESSORIES/PACKING PARTS 68
- OTHER SERVICE PART 68
- SPEAKER BOX PARTS 69
- PACKING PARTS 69
- MECHANISM 72
- CP-BA260/CP-BK2700/CP-BK270 73
- –– MEMO –– 75
- ALL RIGHTS RESERVED 76
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