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Equipment Repairs => LCD TV forum => Topic started by: Doctor Hue on August 17, 2014,05:52:27

Title: Bush 42" LCD LT42M1CFA NVM
Post by: Doctor Hue on August 17, 2014,05:52:27

Hello,

This is my first post to this forum. I was recently given a Bush 42" LCD LT42M1CFA as it didn't power on.
After some investigation I found that the 2200uF cap on the 5V standby circuit had failed. Replaced and all is well.

I am using HDMI 1 input and the set is working but I would like to change the color temp settings.

The circuit is the same as a Haier and the same as a Sharp LC-42SB55E. I can get into the service menu using
"062596" + display key.

The color temps are set at:

CLR_TMP_R 122
CLR_TMP_G 116
CLR_TMP_B 122

I would like to set the Green to 122 and although it appears to change it reverts back to the old value
after a power cycle. I can't seem to get it to write permanently to NVM.

Can this setting ( when using HDMI 1 ) be changed ?

Is there a special code to write to NVRAM ?

Note that for "TV" input ( Freview Tuner ) the color temp settings are all at 122.

Thanks.

Title: Re: Bush 42" LCD LT42M1CFA NVM
Post by: t1412 on August 20, 2014,00:07:48

HI DOC TRY 8893 DISPLAY/INFO.OR  P MODE, S MODE SLEEP

REGARDS
SHAUN