What is the frame output ic

Pl.check audio click at the grid of audio output IC,locate this by checking speaker connection,if click is received than problem lies in the audio IF stage,check the voltage of this stage and locate the fault accordingly,if no audio click received at the output than check speaker for open or voltages of audio output IC to locate the fault.

Depending upon what make, model and age your set is. If the frame scan has stopped there may be either an IC that has failed or transistors. If it is an older Hitachi, then a frame module will be required, if a Sony, a frame IC.
There are four wires from the scan coils. two go the line and two to the frame. The line you say is OK, then the other two go to the frame output stage. Check the IC/Output Transistors/Module as required.
Hope this helps.

The frame output Ic has failed. Change the frame Ic and the capacitor next to it that looks a bit dried up or it will fail again very soon.

It seems you may have a vertical linearity problem. Check all electrolytic capacitors around the frame output stage. The frame output ic may be at fault but this is less likely.
Regards Vintie

You have a frame collapse problem. Line, EHT, power supply, video and sound stages are all functioning. Check frame output ic for dry joints, resolder all pins. HT supply for output ic's derived from line stage check for open circuit safety resistors around line output transformer, if you find any then frame output ic will also be suspect. WARNING Very high voltages exist around the line stage. Make cold tests with Ohm meter with set unpluged from mains supply.

HELLO

Don't panic - your telly has not died!

This is called Field Collapse! More often than anything else it's the Frame Output IC that fails. I don't know your particular JVC model and there are many types of Frame Output IC's but I'll have a guess and say that it is a UPC1488H which seems to be a comon type.

It might be best if you put it in for repair and I can tell you now that these IC's are not cheap anymore, but a service centre should only charge £30-40 to do the job.

ALL THE BEST (:-)

HELLO

If the line is VERTICAL and at the centre of the screen it is called LINE COLLAPSE, but when the line is HORIZONTAL this is called FIELD COLLAPSE.

It may be dry joints on the field/frame output IC or it may have gone open circuit. I know that the field/frame output IC's can be obtained, but if you are no good with a soldering iron then you'll have to put it in for service.

GOOD LUCK WITH IT (:-)

HELLO

The problem here sounds like dry joints on or around the field/frame output IC. I have sorted this kind of problem before with a soldering iron - some (but not all Toshiba's) seem to suffer dry joints on this part.

Try a resolder. If that does not cure it then the field output IC will have to be changed.

ALL THE BEST WITH THAT! (:-)

Hi, This error detail is given below. Symptom/State : Abnormality of IC for steadyshot. Correction: Check or replacement of the IC for steadyshot (IC503 on the SY-194 board). Thanks for using fixya.

There could be a variety of problems:

1- CHECK FOR 12 VOLTS DC (AC-OFF DETECT) AT PIN 3 OF PC9A21 IF MISSING REPLACE PC9A21 PART # 268P058020 ON THE POWER PCB. 2. SHORT DETECT SHUTDOWN (PIN 13 OF IC700) CHECK FOR OPEN L902 PART # 351P155010 OFF Q904 C (15 V SUPPLY) ON THE MAIN PCB. 2- SHORT DETECT SHUTDOWN (PIN 13 OF IC700) CHECK FOR SHORTED D913 PART # 264P722010 AND OPEN Z901 PART # 283P039020 (Z905 AND Z900 M. 3- CHECK FOR BAD CAPACITORS IN DM MODULE. 4- CHECK FOR 10 VDC AT PIN 5 OF IC502 OF LOW, CHECK IC503 PART # 270P704010 ON THE MAIN PCB. 5- SUSPECT SHORTED WINDINGS OF T5A31 PART # 349P216010 ON THE MAIN PCB. 6- SHUTDOWN AT POWER WITH SELF DIAGNOSIS ERROR 2 2. CHECK FOR LEAKY C9A60 470 PF 1000 V PART # 154P400030, PARALLEL TO D9A57 ON THE POWER PCB 2. SHUTDOWN AT POWER WITH SELF DIAGNOSIS ERROR 2 2. CHECK FOR OPEN FUSES F9A04 AND F9A05 ON THE +24 AND -24 VOLT LINES. IF THE FUSES ARE OPEN THE CONVERGENCE OUTPUT CIRCUIT WOULD BE SUSPECT. 7- SHORTED HORIZONTAL OUTPUT TRANSISTOR. 8- COOLENT HAS LEAKED ON THE MAIN BOARD FROM THE CRT'S AND HAS DAMAGED THE MAIN BOARD BEYOND REPAIR. also if the 24 volt B+ and or B- Is missing from the convergence ICs, change both convergence ICs as well as the defective pico fuse in the power supply. This is not a quicky type of repair most likely. These are a few of my notes on this Set from me and a few of my buds in the buisness. Good Luck and let us know how you made out with this set.