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Results 37055
Results 37055
Make | Model Ch. | Symptom | Problem Solution | Solution | By: |
---|---|---|---|---|---|
Hypson | HY1493 3915 TH | Popping or motorboating noise from speaker in standby | Check Q951 JC501-Q, mitsubishi Pt no. 260P543050, and Q952 2SA950-Y, mitsubishi Pt no. 260P255040 and for dry joints around R954, R974 and R985 | ||
Salora | 1HCA | No Power - dead T700 and T701 BUW41B and R713 22ohms, 5W. New parts work short time and dead again | Dry capacitors C712 and C726 4.7uF, 35V | ||
Proline | 28N1 | Procedure to invoke service mode | Press and hold both the s/by button on r/c and vol-button on front of set whilst switching set on. Channel + and - select param and vol + and - adjust. S/by to store | Variant: | |
Panasonic | EURO 7 | Procedure to enter the service mode | Set bass to maximum, treble to minimum, then hold down the index button on the remote and press the v button on the set | ||
Samsung | CW28C33N | Dead. in safety mode | Looks like l.o.p.t but was traced to small decoupling cap on 200v line on tube base, dead short | ||
Philips | 21PT166B/00 AA5 AB | No drive to LOP transistor | Middle sections checked OK. Carefully scoping the TDA8361's Hor. output showed gnd level to be at +0.8v not enough to drive next stage. Change the TDA8361 | ||
Sharp | 4BSC | Low width with lines across screen and feathered edges | Replace C623 and C602 | ||
Sharp | 66FW53H DA100 | Failure of Q601 BUH515 and possibly Q506 | Found dry joints on C613. Also R613 had burnt top of C613. Fitted new parts, found Circuit no longer available. Sharp by name sharp by nature came to mind. Set only just over two years old | ||
Hitachi | C32FW523NA A8 | No or very dull picture with osd and text just visible, A1 control makes little difference, looks like poor crt | 18v zener diode Z703 s/c located near lopt, it is part of the acl beam current limiter | ||
Hitachi | C32FW523NA A8 | Procedure to enter service mode | Switch tv on then press menu then press vol up and vol down on the front of the set simultaneously and hold until menu appears | ||
Mitsubishi | CT25M2TX | Frame collapse, destruction of AN5521 frame chip at switch on | Replace the AN5521 then replace the 47uF, 35v electrolytic in the power supply. Also check the 330uF, 35v capacitor next to the frame chip for leakage | ||
Sanyo | 21BN1 | Dead, l.e.d. lit | R620 o/c. R621 and R620 replaced both 120K | ||
Samsung | CK-5320ZR SCT11D | Field collapse | Check R410 1ohm in feed to D403 for o/c | ||
Nei | C25F4FR CE25 Series | Int failure of the TDA8380 and SGSIF344 | Connect wire link between jungle i.c ground lugs to | ||
Mitsubishi | CT29B2STX | Blank raster with sound / field collapse | The field output chip IC451 TDA8178S was faulty, as this original Mitubishi part was no longer available a kit had to be fitted no.H27PO14010 for this model, this uses a different chip - type STV9379 | ||
Salora | L | Dead | DN15 s/c 8v line | ||
Philips | GR2.2AA | Protection circuit operating intermittently | Diode 6592 was found to have leakage causing voltage to protection circuit to be too high, Should be 23 - 28mV | ||
Toshiba | 3798DG C8SS | E/W Pincushion distortion | Replace D461 damper diode ERC20-06 | ||
Seleco | 26SA37NL | White line in middle screen, several spikes | Check power switch for arcing, also check 1 ohm resistors on switch board for possible dry joints | ||
Jvc | HRD750 | Dead | This was due to C14 1uF, 63v in p.s.u being faulty, replaced with a 2.2uF, 63V |