Here we'll describe a little damage Panasonic Alfa Gold we have ever experienced.
> Over the regulator output voltage.
If this is not addressed will cause more damage fatal. This damage can we know the beginning of the following symptoms;
- When first turned on is not immediately menagkap tv broadcasts, a new normal after some time. This is due to less stable supply voltage for VT due overnya tuner output voltage regulator when first turned on.
- Shortnya ZD on tuners TEG Supply for VT, if this happens then when we onkan tv tv does not want to live and there was a "ngiiik".
To overcome these problems over regulator we have to replace all elco whose value is 47 micro-regulator circuits. If we replace elco has fixed voltage over then, check resistor826 whose value is 22ohm, usually drop out.
> Relay sound "ceklek-ceklek", do not want on tv. Damage usually occurs on the R803 is worth 470k.
> Disearching passed, difine can-tuning. Check out the TEG at AFT AN5192K IC pin 30, if no voltage, usually ZDnya short.
> When exposed to light images (too much contrast) tv dead, red LED life. R525 end, it was worth 22k.
> Picture no sound normal, normal audio IC. This often happens. diode damage adjacent to the audio IC, PCB edge is located, replace it with D 4007.
> menu To enter service mode: press the V-Disply on tv and on radio and remote, to exit press the "N" (normal) on the remote.
download schematic tv here
Showing posts with label Panasonic. Show all posts
Showing posts with label Panasonic. Show all posts
Saervice panasonic 21 Top done Rusak
Panasonic this type typically are often damaged.
This damage is caused by damage to the resistor 525 with a value of 137k ohms, the resistor at the B + abl.
The symptoms that we can see the result of damage to the resistors 525 are:
- Picture looked dim.
- If exposed images directly image the light horizontal lines (such as damage to the vertical circuit.
- Secreen opened a line drawing, secreen diminished dim picture but normal.
If you see problems like the above then the only solution to quickly replace the R525, guaranteed to be OK ....
Download schematic tv here
This damage is caused by damage to the resistor 525 with a value of 137k ohms, the resistor at the B + abl.
The symptoms that we can see the result of damage to the resistors 525 are:
- Picture looked dim.
- If exposed images directly image the light horizontal lines (such as damage to the vertical circuit.
- Secreen opened a line drawing, secreen diminished dim picture but normal.
If you see problems like the above then the only solution to quickly replace the R525, guaranteed to be OK ....
Download schematic tv here
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