Repair Tips
Search:
Results 37055
Results 37055
| Make | Model Ch. | Symptom | Problem Solution | Solution | By: |
|---|---|---|---|---|---|
| Philips | 20PT3742 | Dead with LED blinking 4 times | The vertical output IC. is short circuit | ||
| Panasonic | TX21V1 Alpha 2 | Bright red raster with flyback lines,shutting down after about 30 seconds with squealing from power supply | The fault was due to the supply choke to the red output stage on the tube base panel being O/C, I can only assume the shut down was due to excessive beam current, a long soak test proved all was now ok | ||
| Panasonic | TX-2470 | Cogging on vertical elements of picture, p.s.u squealing | Replaced C808 10uF, 50V It had gone low in value | ||
| Sony | KVG25M1 | Dead | Found Q802 C4927 short, replace with same type as no other types last | ||
| Goodmans | 2029T | Blank raster with no sound eht & tube heaters present | ZD401 s/c. Also take a look at R419. This set had been left on and R419 had cooked, it's value went to 20K | ||
| Nordmende | F20-9 ICC7 | No colour | Check IV01 TA8659 or IE50 TEA2114 | ||
| Hitachi | C2146TN | Dead / int, led lit | Check the 5v regulator IC952, 8v regulator IC951, standby regulator IC950 and the field output chip TA8427K or for dry joints on the regulators | ||
| Ferguson | 626R TX807 | HVTU Tension de sintonia 99v pero en el zener DH01 ZTK33A hay 22v. | Sustituir zener 33v ZTK33A | ||
| Thomson | TX807 | Plain raster, retrace lines, no sound | Problem in vif board, Resistor 68 ohms to +b supply line 12V | ||
| Bush | WS6690D 11AK19 | At switch on front l.e.d turns green, blinks twice then set returns to standby. All h.t voltages rise, then fall away as set goes into standby | 33 ohm resistor feeding standby 5V reg was high 8 ohms - not shown cct diagram, in my case D605 on the 45 volt supply from the LOPT was faulty, although it measured o.k | ||
| Blaupunkt | MS70-79VT FM500-70 | Horizontale gekartelde stoorpatronen in 't beeld 't eerste uur. | Cond. C542 slecht | ||
| Telefunken | Palcolor S540C ICC9 | Geen blauwe kleur | SMD transistor TV81 Bc858 defect. | ||
| Orion | TV2501B | Dead set | Found the IRD shorted | ||
| Panasonic | NVJ45 G DECK | Appeared to be dead like C1110 1uF, 400 | Found C1125 and C1130 680uF, 20v leaking onto pcb. Remove sm.tx and clean board | ||
| Sylvania | SRT2127ST | TV will not start up, fuses ok | Change IC601 | ||
| Samsung | 20A5 | Partial field collapse | Check IC301 TDA8350Q and the 2 associated unmarked capacitors 10uF and 100uF, 63v and the 10ohms,5w ceramic resistor across pins 3/5 of the above chip | ||
| Decca | D20RDE6 D Series | No luminancelooks negative picture | We spent over 2 hours on this set and in the end we swapped the with a scrap and the fault remained ! It turned out the fault was with the CRT | ||
| Philips | 29FL1770 or 25FL1760 FL1.0 | Lights flashing at the front, if carefully interpreted they point to the primary of the power supply | Replaced 2SB 3795B chopper transistor, heated the heatsink with a hair dryer and it started right up, weird as the transistor was reading fine | ||
| Philips | 29FL1770 or 25FL1760 FL1 | When selecting a channel it locks in initially but will then go off tune as if the voltage tuning had varied | Replaced the TDA i.c. in the tuner i.f. section. tried the capacitors first of course. | ||
| Philips | 29FL1770 or 25FL1760 FL1 | No pictures or sound | Disconnect the P1 and P2 plugs on the right hand side board. L.o.p.t. side. If the set now starts up then change all sound output IC's |