Question about Televison & Video

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Please help. i had got his request from a premium customer. i am confused with his problem. i want to request you to help him out in this issue. ORIGINAL PREMIUM PROBLEM: Generic problem for all Projection Televisions I have a phillips 60pp9100d that has no picture or sound. I keepsflashing I2c bus error. I have resoldered the flyback connections andanything else that looked suspect. After turning the tv back on I getthe same result,I can hear the flyback powering up as before but thatsit. Do I need to proceded with replacing the Ic chips or go in anotherdirection? REQUEST PROBLEM: The guy I got this tv from said he pluged in the s-video on the backand the screen rolled twice and then it lost picture and sound. The "onbutton" when activated would flash in the beginning 2 times,which thisis the error code for "no horizontal flyback protection. It has notshown that code anymore. It now flashes 6 times when the power buttonis activated which is A"general I2c error main I2c bus". I do not havepicture or sound. The main board has power and has had all solderjoints resoldered.I have a service manual for this model and I waswondering if ic chip Mc44603a would be the next step in diagnosing thisproblem. The pin connections diagram leads me to believe that thiscontrols current to the power transformer. This is labeled as (ic7302)on the schematic if you have access to one. I have ordered various icchips for this model in hopes of someone pointing me in the rightdirrection.Thanks http://www.fixya.com/support/t826120-phillips_60pp9100_problems THANK YOU

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  • dewan nafees ahmed Jul 24, 2008

    thanks for the reply brother.

    i have posted your solution for that customer.

    i will get back to you with his comments.

    thank you once again


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IC7302 should be checked for in and out voltages to see is its the IC istself that is at fault or possibly a leaky diode after or before the IC. Checking pin voltages will be the only way to track the problem down and isolate exactly whats happening. If you need more assistance please let me know

Posted on Jul 24, 2008

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Posted on Jan 02, 2017

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