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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: 9
JMB
134TX Orion
AGC type overload
Main micro under can not seated properly
14-09-04
JMB
20NTX 11AK30
Sound absent apart from the odd crackle
18.432Mhz Xtal in Nicam circuit
14-09-04
JMB
JMB66W 11AK19Pro
Dead - LED lit green but no line drive
pin 40 TDA8844 s/c. There is an internal diode between pin 40 & ground that goes leaky, replace the IC or burn diode o/c by applying 5V between pin 40 & ground from ext psu
14-09-04
JMB
JMBM020FTS PT92-90deg
No col, ragged verts & causing interference on hearby tvs
LOPTx - (pt-10677080) (FBT40784) from Wiltsgrove @ 14.75UKP's.arcing at bottom where EHT lead is pushed in
14-09-04
JMB
JMBN028WSS
E/W dist with burning smell
RV38 8R2 in LOP o/c, CD21 680nF 250v o/c
14-09-04
JMB
NO28WSS PT92
Dead with green LED flashing
Volts at psu sec very low - OK on dummy load - DD07 BY228 faulty
14-09-04
JMB
PT92
Reverts to st/by aft brief EHT rustle
Check Tr BC337 cct Ref TD04 in 8v supply, it's probably o/c.
14-09-04
JMB
C
1499BA (Orion)
St/by only
New EEPROM ordered from CPC cured problem
14-09-04
JMB
C
2099TX Matsui TVR180
St/by only
syscon/timer/servo IC1006 OEC0078C using the sub-panel to get it out of S/by and then corrected incorrect Hex values. (Or get preprog 24C08 from Grandata)
14-09-04
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