If the source to the PIP input is a color signal then the PIP display will be color. PIP sets have two video sources one goes to the main screen while the other goes to the PIP. it all depends on what the format of the signal is being sent to each input. This is quite normal.
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PIP means the set uses either two tuners or a dual tuner--could be a issue with the tuner. If it has a swap feature in the PIP use it to see if color when tuner is switched from main to PIP tuner.
A possible way around the issue is to look to see if rear audio/video inputs have color---you could route signal from a box etc to one of those and BYPASS the problem if rear inputs do not have this problem(not likely they will).
Whatever input video signal you're using, PIP should be in color. What are you using out of your dvd for the second video input source, composite or component? Composite you should always have color, Component, if you have a bad red or blue, and just the green is working, you will get black and white. The green is the luminence signal.
ok her is a good test for u, bring up the pip on screen and see if the picture is the same as the main picture ok.now if at is it sounds like to me that u have a bad pip board that is causeing your problem u can bypass the pip u just need to jump the video in to the video out and sync out and in and remove the pip most of time i have found that the small caps go back on the board and u lose snyc and that is y your picture goes black and white with blinking color in the background. now the stk392-150 is a better chip then what u had in it but convergence problem has nothing to do with color snyc. i hope this will hp u marty
1. NO VIDEO, BUT HAS VIDEO WITH PIP ON. CHECK C763 (1UF 50V) ON THE BASE OF Q715, LOCATED ON THE UCOM-PCB. 2. NO MAIN VIDEO, THERE IS VIDEO IN PIP ON EXT1 AND EXT2:-CHECK FOR 1VPP OF LUMINANCE ON PIN 1 OF IC7000, IF MISSING OR LOW CHECK THE VALUE OF C7001 (4.7UF 35V), LOCATED ON THE PIP-PCB. THIS CAP MAY LEAK ELECTROLYTE ONTO THE BOARD AND OPENED A FEED THROUGH IN THE PATH BETWEEN C7001 POSITIVE LEAD AND THE EMITTER OF Q7003 OR CAUSE INTERMITTENT COLOR. PART # 181P504090. (CHECK ALL 'SMD' ELECTROLYTICS AND TRACES ON PIP) 3. NO MAIN OR PIP VIDEO, CHECK C7014, 47 UFD 16V ON THE PIP PCB. PART # 181P502060 4. CHECK FOR 7.2V DC ON THE BASE OF Q7003, IF LOW OR MISSING. CHECK THE VALUE OF R7002 (150 OHM 1/10W).LOCATED ON THE PIP-PWB. PART # 103P401050 5. SUSPECT R2045/R2048 (6.8 OHM 3W) FOR OPEN/RAISED VALUE. LOCATED ON PCB-SIGNAL AT 5V REGULATOR IC2003 PIN 5.
rule number one about all vs chassis with vertical can pip boards
take them out and throw them away
i could fix one but you couldnt beleive me
and it wouldnt be worth your while
do a search on your modle number until you come up with instructions on how to add two caps to the pip board connector to bypass it
until you do this you are wasting your time
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