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Electronic appliance repair tips database - TV (LCD,TFT,Plasma,Digital), Monitor, VCR, DVD recorder and player, Digital camera, Audio equipment, Microwave ovens, Phone systems, Computer repair
Make
Model
Problem
Solution
Date
Found: 6
Hitachi
C24
W4
10
Int crackle on sound
R4005 & 4009 47R in audio o/p cct
14-09-04
Hitachi
C24
W4
10
Int cuts out - esp when tapped
Dry joints VR950 under plastic frame
14-09-04
Hitachi
C24
W4
10SN
EHT crackling with HT too high
ZD950 O/C 10 volt special zener T536207 also replace C601 and C611 220mfd
14-09-04
Hitachi
C24
W4
10SN
EHT surge at sw on then reverts to st/by
Dry joints on IC951 and IC952 (Voltage regulators)
14-09-04
Hitachi
C32
W4
0TN
Dead - mains smoother stays charged
Dry joints HT pot RV950 - must remove pcb to get at conns under runner
14-09-04
Hitachi
C32
W4
0TN
Loss of some FTA chans & "Encrypted" shows
EEPROM corrupt - erase by entering analogue auto tune - when it starts, sw to st/by. Set can now be auto tuned restoring all chans
14-09-04
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