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.
1-1
TOSHIBA
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(10K
)
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 k
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)