Toshiba SD-KT50-S-TU Service Manual
SERVICE MANUAL
DVD HOME
FILE NO. 810-200331
October. 2003
SD-KT50-S-TU
V I D E O
COMPACT
DIGITAL AUDIO
COMPACT
DIGITAL VIDEO
THEATER SYSTEM
DOCUMENT CREATED IN JAPAN, Oct., 2003
CONTENTS
1. Alignment and Adjustments
2. Exploded Views and Parts List
3. Diassembly and Reassembly
4. Electrical Parts List
5. Block Diagrams
6. PCB Diagrams
7. Wiring Diagram
8. Schematic Diagrams
9. IC block Diagrams
10. Troubleshooting
Note:
SD-KT50-S-TU includes the same components as SD-43HT.
1-1TOSHIBA
1. Alignment and Adjustments
1-1.Tuner
FM THD Adjustment
Output
Output
28 dB(±2dB)
60 dB
Minumum Distortion (0.4% below)
(Figure 1-1)
SSG FREQ.
Adjustment
point
(FM DET)
98 MHz
FM DETECTOR COIL
FM Search Level Adjustment
Adjust SVR1 (Figure 1-2)
Figure1-2 FM Auto Search Level Adjustment
*Adjust FM S.S.G level to 28dB
Figure1-1 IF CENTER and THD Adjustment
SSG FREQ.
Adjustment
point
(SVR1)
98 MHz
BEACON
SENSITIVITY
SEMI-VR(10KΩ)
FM S.S. G
GND
28 dB
FM S.S. G
Output
GND
Speaker
Terminal
FM
Antenna
Terminal
Distortion Meter
Input
SET
Input
output
Oscilloscope
FM IN
FM Antenna
SET
20 kΩ
OUTPUT
AM SSG
450KHZ
INPUT
AM ANT
IN
Speaker Terminal
60cm
AM IF
VTVM Oscilloscope
AM(MW) I.F Adjustment
Maximum output (Figure 1-3)
SSG FREQ.
Frequency
Adjustment
point
450 kHz
522 kHz
AM IF
Figure1-3 AM I.F Adjustment
OUTPUT
* Adjustment Location of Tuner PCB
Fig 1-4 OSC Voltage
AM(MW) OSC
Adjustment
Output
1~7.0±0.5V
Received FREQ.
Adjustment
point
522~1611 KHz
MO
AM(MW) RF
Adjustment
ITEAM
594 KHz
MA
Maximum
Output(Fig1-4)
TOSHIBA 2-1
2.Exploded Views and Parts List
2-1 Total Exploded View
TOSHIBA
2-2
* Parts List of Total Exploded vie w
No. TOSHIBA P/N Description & Specification Q’ty REMARK
E01 AG000426 AH64-02409A WINDOW-CD DOOR, ACRYL 3.0T 1
E02 AG000422 AH64-02405B DOOR-CD, ABS GRAY 1
E03 AG000397 AH61-01323B
HOLDER-DOOR CD, ABS GRAY+GLASS 20%
1
E04 AG000398 AH61-01325A SPRING-DOOR CD, SUS304 2
E05 AG000425 AH64-02408B KNOB-VOLUME, ABS NATURAL 1
E06 AG000608 AH64-02410C WINDOW-VFD, ACRYL 3.0T 1
E07 AG000454 AH73-00005A CUSHON-FOOT, EVA 2.0T 4
E08 AG000421 AH64-02404D CABINET-FRONT, MIPS GRAY 1
E09 AG000537 AH63-00388N BRKT-GND, PBS 0.2T 1
E10 AG000438 AH67-00218A LENS-POWER, PMMA MILKY 1
E11 AG000424 AH64-02407B KNOB-POWER, ABS GRAY 1
E12 AG000423 AH64-02406B KNOB-MAIN, ABS CLEAR 1
E13 AG000439 AH67-00219A LENS-VOLUME, PMMA MILKY 1
E14 AG000399 AH61-01374B BRKT-GND, SECC 0.6T 1
E15 AG000418 AH64-01999A CABINET-BOTTOM, SECC 1.0T 1
E16 AG000395 AH61-01131A HOLDER-VFD, ABS BLK 1
E17 AG000568 AH63-00388R SHIELD-PCB, PBS 0.3T 1
E18 AG000411 AH63-00388C SHIELD-TOP, PBS 0.3T 2
E19 AG000419 AH64-02001D CABINET-TOP, SECC 0.8T 1
E20 AG000396 AH61-01140A BRKT-PCB, SPTE 0.5T 1
E21 AG000405 AH62-30062A HEAT-SINK.TR, AL EXTR 1
E22 AG000403 AH62-00083A HEAT-SINK.DVDP, AL EXTR 1
E23 AG000401 AH62-00062A HEAT-SINK.TR. AL EXTR 2
E24 AG000404 AH62-30061C HEAT-SINK.TR, AL EXTR 1
E25 AG000535 AH62-00052D HEAT-SINK.DIO, AL EXTR 1
E26 AG000402 AH62-00082A HEAT-SINK.F, AL EXTR 3
E27 AG000420 AH64-02403B CABINET-REAR, SECC 0.8T 1
E28 AG000414 AH63-00569A SHEET-SPK R, PVC 0.3T 1
E29 AG000415 AH63-00569B SHEET-SPK FCW, PVC 0.3T 1
E30 AG000539 AH63-00614A COVER-FAN, MIPS GRAY 1
ESA AG000490 AJ60-01001A SCREW-TAPTITE, BWH, 2*5, YEL 2
ESB AG000339 6002-000398 SCREW-TAPTITE, BH, 3*6, YEL 16
ESC AG000338 6002-000126 SCREW-TAPTITE, FH, 3*10, BLK 2
ESD AG000391 6003-000109 SCREW-TAPTITE, RH, 2.6*8, YEL 5
ESE AG000344 6003-001499 SCREW-TAPTITE, BWH, 3*8, SIL 8
ESF AG000389 AH60-00014A SCREW-TAPTITE, TH, 4*6, YEL 4
ESG AG000390 AH60-00025A SCREW-TAPTITE, BH, 3*10, SIL 16
ESH AG000417 AH64-01984D SCREW-TAPTITE, BH, 3*12, SIVER 2
ESJ AG000520 6003-001277 SCREW-TAPTITE, BWH, 3*6, YEL 5
Samsung
Code No.
No. TOSHIBA P/N Description & Specification Q’ty REMARK
Samsung
Code No.
TOSHIBA 2-3
2-2 MECHA Exploded View and Parts list
AG000487 AH97-01117A DVD MECHA CMS-D100
M01 AG000392 AH61-00746A BASE-MAIN ABS BLK 1
M02 AG000409 AH63-00294A TRAY-DISC ABS D/GRAY 1
M03 AG000429 AH66-00159C LEVER-LIFT ABS BLK 1
M04 AG000430 AH66-00160A PULLEY-MOTOR POM WHT 1
M05 AG000431 AH66-00161A GEAR-PULLEY TPE WHT 1
M06 AG000432 AH66-00162A GEAR-MIDDLE TPE WHT 1
M07 AG000433 AH66-00163A GEAR-TRAY POM WHT 1
M08 AG000434 AH66-00164A
CLAMPER-UPPER
POM WHT 1
M09 AG000435 AH66-00165A
CLAMPER-LOWER
POM WHT 1
M10 AG000393 AH61-00747A
BRACKET-CHUCK
SECC t1.0 1
M11 AG000436 AH66-00166A SLIDE-CAM POM WHT 1
M12 AG000362 AH31-00030A MOTOR-DC RF-300CA-11440 1
M13 AG000376 AH41-00352A PCB-SWITCH 26.5*21.6 1
M14 AG000437 AH66-00167A BELT-PULLEY CR 1.5 1
M15 AG000288 3409-001119
SWITCH-DETECTOR
JDS2200 1
M16 AG000385 AH59-00130A DVD DECK CMS-S21MG6 1
M17 AG000337 6001-001257
SCREW-MACHINE
1.7*3(W4.5) 2
M18 AG000490 AJ60-10001A SCREW-TAP 2*5(W7) 6
M19 AG000343 6003-001210 SCREW-TAP 2.6*6(W12) 5
M20 AG000455 AH73-00025B RUBBER-CD BUTYL 15 4
M21 AG000394 AH61-00958A
BRACKET-GUID
SECC 1.0t 1
M22 AG000342 6003-000283 SCREW-TAP 3*8 2
No. TOSHIBA P/N Description Specification Q’ty
Samsung
Code No.
TOSHIBA
2-4
2-3 SPEAKER Exploded View and Parts list
* CENTER SPEAKER
* FRONT/REAR SPEAKER
TOSHIBA 2-5
* SUBWOOFER
TOSHIBA
3-1
Diassembly and Reassembly
3. Disassembly and Reassembly
3-1-2. ASS’Y DOOR
1.Turn on the power and open the disc tray.
2. Slightly twist the assembly door in the direction of A and lift it in the direction of B to remove it.
3. Close the assembly door.
CABINET TOP
TRA Y
ASS’Y DOOR
E
E
E
3-1-1. CABINET TOP
1. Remove the top cover by taking out the 9 screws (E) on the periphery that hold it on.
3-1. CABINET REPLACEMENT
A
B
TOSHIBA
3-2
Diassembly and Reassembly
3-1-3. CABINET FRONT
1.Take out the 5 screws (B) and the 2 screws (C).
2. Disconnect the flexible cable and then remove the cabinet front.
3-1-4. CABINET REAR
1.Take out the 15 screws (G), unplug the connector, and then remove the cabinet rear.
FLEXIBLE CABLE
CABINET FRONT
CABINET REAR
CONNECTOR
B
C
C
B
G
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