Repair Tips

Search:
Results: 87709

Make	Model	Symptom	Problem
SONY	KV1746R	Intermittent shut down , replaced q901	This set very intermittently shuts down. it could run a weekjust fine.
SONY	KP7220	Picture distortion, replaced d5319	Overscan.
SONY	KP5040	Incorrect mechanical function	When closing mirror assy, motor stops intmtly during first 3or 4 inches of travel. this is more severe if even the slightest pressureis applied in a downward motion on the reflector when motor is running.the plastic pipes tend to jam severely when press
SONY	KP5040	Shut down, replaced high voltage block	Door would not open. unit would shut down.
SONY	KP5000	Out of convergence	Green would go in and out of convergence as the green tube wasarcing. also brightness level change would affect size of green pictureproducing misconvergence effect.
SONY	KX2501	Intermittent black blobs in pix, replaced t1501	Black blobs intermittently come and go and move around thescreen. the intensity and size can be varied by adjusting the videoinput level or ac input. by observing the waveforms in the horiz.circuit we found varying amounts of distortion at the secondar
SONY	KX2501	Volume level changes with pix control, replace ic101	Sound would increase when increasing picture level, decreasewhen lowering picture. adjusting sound control would have similar effecton picture level. mute control would not fully mute sound. pwm signalsfrom up, ic101 pins 2 and 3 were of the same ampl
SONY	KV9400	Intermittent color	This set was intermittently losing color. found horiz. pulsemissing at pin 20 of ic301. traced problem to c311 which was opening up.
SONY	KV9200	Retrace lines	Customer objected to three-four vertical retrace lines onlyvisible while watching two channels 9 and 32. lines appeared to sparkleas if they were being modulated with information. scoping verticalblanking pulse, noticed excessive pulse width. working
SONY	KV2647R	Black lines on the screen, replace ic501	Solid black line across the screen about 1/2 inch thick,2 inches from the top. very intermittent.
SONY	KV2647R	No color, replace ic501	No color. very low burst.
SONY	KV2645RS	No uhf, replaced prescaler bt-981	No uhf, vhf ok. all voltages and pulses present excepttp-59.
SONY	KV1943R	Intermittent sound, replaced c226	Highly intermittent audio. slight popping noise beforegoing out.
SONY	KV1923	Tuning up/down would not lock	In the program mode tuning up/down set will not lock onchannel.
SONY	KV1914	No sound	No sound. voltage at pin 21 of ic201 was low, should havebeen 5.8 vdc, was only 4.0 vdc.
SONY	KV1543R	Intermittent color fade, replaced c308	Intermittent color fading. this problem was highly inter-mittent, sometimes taking weeks to manifest itself. the color would fadeout completely. chroma input to ic301 pin 13 would not change at allduring fade outs. dc level was varying slightly, betw
SONY	KV1515	No vhf channel	Low vhf channels cannot be received. found d501, d502shorted.
SONY	KV1221R	No remote control function, replaced c007	There were no remote control functions. the volume up/downfunctions would shut set on and off. manual input of ic (remote control)pin 1 always had a noise pulse and frequency at this point was incorrect.this noise pulse inhibited any input data from re
SONY	KP7220	No picture, connector da-5 intermittent	Connector da-5 gets loose and causes picture tubes to blankout, can also cause a line on green tube which burns to mark in tube.
SONY	KP5040	Poor focus, replaced hv block	Unable to get a good focus. problem traced to high voltageblock.