What to do if system has frozen and dispaying tuner and tuner cl

Does it have an external speaker plugged in the back? If so try unplugging it see if the internal speaker works, if it doesnt have an external speaker plugged in try one, maybe the internal speaker went bad from moisture.

It's VERY possible that the Tuner has a "backlit" display ( Like many of the 1980-90's Yamahas)...You'll need to replace a couple of small bulbs inside

Try pressing clear (CL) then type some numbers and see if they appear on the screen. If not, you probably have keyboard failure. If they work, press clear again and try pressing 1 then CLK# button.

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If anyone has trouble programming a Sharp XE-A402 cash register, the manual is here:

http://the-checkout-tech.com/manuals/cashregisters/Sharp_XE-A402_operation_manual.html

Sounds like the timmer in the control module has frozen and will not advance. It's one module for the whole display. I sometimes tap the module with a plastic screwdriver witch may releace it but it will do it again. I sorry to say but it's time for a repair man. I do't have the writing space to tell the procedure (if it is the problem) - Sorry, not good news

It could be your tuner.change ur tuner

CL = Child Lock
Press and hold the WASH and RINSE buttons at the same time for several seconds to lock/unlock

hit the right side of the radio neer the tuner button and it will work for a lil while longer

sound cards are card fitted in pc to get sound when soundc slot of motherboard is malfunctioning or driver is not available,multimedia cards are cards for storage connected through USB and display cards are used when video slot of pc is malfunctioning or there is no driver.higher memory display cards are known as graphic cards.

Just fixed mine - replaced 35v 47uf electrolytic capacitor in awu7837 module (inside shield case) - this module connects to display unit. see www.circuitsonline.net/forum/view/14478 for more info and diagram Cost - 16 pence from Maplin p/n se47m35 kq68y
Regards, Dave

cl is over loaded push stop clear to clear then try again with a lighter load