Troubleshooting - Toshiba 20HLV86 Service Manual
Lcd tv/dvd combination
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Also See for 20HLV86:
- Owner's manual (72 pages) ,
- Mode d'emploi (72 pages) ,
- Service manual (7 pages)
Table of Contents
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POWER DOES NOT TURN ON
IS F3801 BROKEN ?
NO
IS THERE VOLTAGE
AT PIN 4 OF IC3801
20.5V ?
YES
IS THERE VOLTAGE
AT PIN 2 OF IC3807
AT5V ?
YES
IS THERE VOLTAGE
AT EMITTER OF Q3809
AT3.3V ?
YES
CHANGE SCALER PCB.
TROUBLESHOOTING GUIDE
YES
NO
NO
NO
E-1
CHANGE F3801.
CHECK IC3801 AND
PERIPHERAL CIRCUIT.
CHECK IC3807 AND
PERIPHERAL CIRCUIT.
OR CHANGE POWER PCB.
CHECK Q3809 AND
PERIPHERAL CIRCUIT.
OR CHANGE POWER PCB.
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Table of Contents
Troubleshooting
