Sharp LC-37XL8E bad lamp?

[grabavozas]

Hi,

few days ago, my beloved Sharp shut off and started to blink red or green led one blink per second. Service mode cant be entered - screen turns off after few seconds. As I understand, one of lamps failed.
Can someone pinpoint capacitor that needs to be jumped in order to bypass lamp diagnostics or smt? Attached pics of inverter board.

Here's service manual for this TV

[grabavozas]

Re: Sharp LC-37XL8E bad lamp?

Anyone?

[tom66]

Re: Sharp LC-37XL8E bad lamp?

Pin 18 of OZ964GN, trace it to a capacitor. Short that capacitor. However do be aware doing this can cause damage to the inverter, bulbs or transformers and possibly create a fire hazard. Only do this as a temporary test before repairing the root cause.

[grabavozas]

Re: Sharp LC-37XL8E bad lamp?

Thanks, but I have a hard time tracing... First there's a resistor (?) JR7513, then path splits.. Attached one more pic

[tom66]

Re: Sharp LC-37XL8E bad lamp?

Try C7524, they may also use that control line for other stuff.

[grabavozas]

Re: Sharp LC-37XL8E bad lamp?

Just tried, screen does not turn at all. Thoughts?

[tom66]

Re: Sharp LC-37XL8E bad lamp?

I think it means you're getting no error any more but there is a fault with the inverter preventing it lighting up.

[grabavozas]

Re: Sharp LC-37XL8E bad lamp?

Desoldered jumper - I do get a pair seconds of image, with dimmed region in center of a screen. So sad..