R
Russell Griffiths
Guest
Sharp ctv, model CX51K4.
The owner said one of their children was playing with
the remote before the ctv lost the tuned in
tv stations and other faults showed.
Picture in AV mode appears too big for the screen (vertically).
Pressing "Picture" on tv for more than 2 seconds should enter
auto tuning mode, but does not.
When I change volume, the word "volume" shows at the very bottom
of the screen, but the bargraph below it is off the screen.
CTV randomly goes to standby for around one second.
CTV may switch off with power light flashing red, remote will
not turn it back on untill main switch is turned off/on.
Picture is very dark every time ctv is turned on, if I go to
"contrast" mode, press "up vol." once, the picture returns to normal.
I have also seen the power light green, but the screen is black,
not even the on screen display, and remote will not turn the set
on or off.
I have tested the caps with the ESR meter, they all seem o.k.
The jungle chip is a TDA9381PS.
Are there service codes to use with the remote?
I hope to have a schematic soon.
Any suggestions?
Thanks,
Russell Griffiths.
The owner said one of their children was playing with
the remote before the ctv lost the tuned in
tv stations and other faults showed.
Picture in AV mode appears too big for the screen (vertically).
Pressing "Picture" on tv for more than 2 seconds should enter
auto tuning mode, but does not.
When I change volume, the word "volume" shows at the very bottom
of the screen, but the bargraph below it is off the screen.
CTV randomly goes to standby for around one second.
CTV may switch off with power light flashing red, remote will
not turn it back on untill main switch is turned off/on.
Picture is very dark every time ctv is turned on, if I go to
"contrast" mode, press "up vol." once, the picture returns to normal.
I have also seen the power light green, but the screen is black,
not even the on screen display, and remote will not turn the set
on or off.
I have tested the caps with the ESR meter, they all seem o.k.
The jungle chip is a TDA9381PS.
Are there service codes to use with the remote?
I hope to have a schematic soon.
Any suggestions?
Thanks,
Russell Griffiths.