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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: 10
Grundig
CUC
184
2
Focus poor
Replaced tripler & 2 x 1n5 6kv caps on dynamic focus board
14-09-04
Philips
14PV
184
Menus not displayed
L1802 on bottom panel across pins 42 & 43 of micro IC7801
14-09-04
Philips
14PV
184
Reverts to st/by at sw on aft LOPTx replacement (LED goes from brief green to red)
Eventually comes on with dull grey raster. PROT line on micro IC7801 pin 53 vcr pcb only 1v (5v) - check at D6568 LH plug 1923 - prot Tr 7550 BC547 leaky (front left edge of tv pcb)
14-09-04
Philips
14VP
184
DEAD, BLOWING FUSE
REPLACE POSISTOR
14-09-04
Sony
KV2
184
Chans won't lock when tuning & garbled OSD
LA78LR05 5 legged 5v reg with µ reset built in faulty
14-09-04
Sony
KV2
184
Dead - STR50115 overheating
Replaced chip (s/c pins 2 & 3) but still dead; D608 R2M diode s/c & PS801 800mA cct prot o/c
14-09-04
Sony
KV2
184
Switches off on bright scenes
R621 1R in psu slightly hi (1R4)
14-09-04
Sony
KV2
184
-34
Won't start, pin 41 (stby) of microcontroller is high.
Replace Q003. No leak or any other defect was detected with a VOM.
14-09-04
Sony
KV2
184
-34
Won't start. Nothing heard upon switch-on.
Diode D604 short circuited
14-09-04
Sony
KV2
184
-34
Won't start/ loud audible buzz.Sometimes starts and switches off after a while.If stby pin(41) of Mp desoldered,all ok
Replace Str50115.
14-09-04
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