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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: 11
Alien
3711
PT92
Sound system changing - enter service mode
Press Text sub page key on r/c whilst holding Vol down button on TV. Using Prg + & - key to navigate thru settings to Option Byte 1. Sound systems appear - at right of each is 0 or 1, press Vol- & + keys to alter settings for PAL I to 1. Press TV on R/C to exit & store. Press & HOLD menu on r/c till the OVERVIEW menu appears, press menu once more until INSTALLATION menu appears. Navigate to sound setting & use Vol - & + keys to alter to PAL-I for UK sound STORE by using Vol +
14-09-04
Bush
WS6674
PT92
Dead - no o/p from psu or LED
RP06 3M9 1/4w pin 11 chopper IC o/c
14-09-04
Decca
D28WT92SN
PT92
Narrow uncorrected pic after s/c LOPTr replaced
Dry joint CD21 which blew BU508AF & CD21 680nF o/c causing RV38 2R2 fusible to go o/c
14-09-04
Decca
D28WT92SN
PT92
Rush of EHT at start up then set goes off to S/by
Bad joint on CD21, DD07 (BY228) was s/c, and RV38 (2.2 Ohm Fusible) o/c
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
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
Naiko
N2818W
PT92
Dead
LOPTr s/c & dry joints LOP stage esp LD03 - invisible dry joint under glue
14-09-04
Naiko
N3211
PT92
Dead - blows LOPTr
DJ on coil LD01 - joint covered in glue so not easy to see
14-09-04
Okishi
N2818W
PT92
Tripping PSU
LOPTr BU508AF s/c, RV38 2R2 burnt. Check dry joints LOP & CD08 470 or 680nF 250v o/c
14-09-04
Wharfedale
M8 Daewoo
PT92
Dead
LOPTr s/c, RV38 2R2 fusible o/c or hi res (behind heatsink at back of LOPTx)caused by dry joint on LD01 (often hidden under glue by LOPTx)
14-09-04
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Last SM download : Ricoh / Savin 2035, 2045 / 4035, 4045
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