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-   -   aiwa AIWA NSX-K550 lcd indicator problem (http://www.diyaudio.com/forums/digital-source/229639-aiwa-aiwa-nsx-k550-lcd-indicator-problem.html)

niccm0314 8th February 2013 10:59 PM

aiwa AIWA NSX-K550 lcd indicator problem
 
Hi,

i have an aiwa mini hifi the model is AIWA NSX-K550. Im facing some problem during the repair, the lcd indicator at in front of controller panel is having problem, the display will b intermittent dim after power on the system. I had see the service manual, found out the micro processor ( LC866548 - 8-Bit Single Chip Microcontroller) is controlling the indicator Lcd panel, so i touched it with finger then press it n the indicator lcd panel working fine but when i release it, all the indicator display was gone.. i tried to trace the soldering found out the soldering was ok.. any idea with it? is it the LC866548 - 8-Bit Single Chip Microcontroller death? :confused:
the question is - if i replace the LC866548 - 8-Bit Single Chip Microcontroller to the board, is it the source code in the chip i must clone it to the new chip if not it will not work for the lcd indicator panel?
please advice thank u..

service manual link
AIWA NSX-K550 Service Manual free download,schematics,datasheets,eeprom bins,pcb,repair info for test equipment and electronics


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