Wife's kitchen oven has a .5" high 4 character plus colon, 7 segment 
clock/timer display. The timer only beeps when time expires, there is no 
control of the oven. Several of the LED segments are dim, and it they 
are not consistent in brightness with time.  My thinking is the resistor 
in series with the common anode/cathode may have changed in value, and 
swapping it for a same or different value may solve the problem. Or I 
might end up changing the display. Last resort would be just buy a new 
controller/display board for $130. I have not been able to find either 
schematics or source the parts. Any help in that area appreciated. The 
info follows:

Display:
BACKSIDE:  P/N SL-2042-27TBH, 9Z22
FRONT SIDE:  P/N TCL-1008P

CONTROLLER BOARD:
FRONT SIDE: 20-21672  PC1
WORLDTRONICS WT-2167L

CONTROL CHIP
	WT 2223
	9928CEG

There is a 0.1" spacing set of short jumper wires between the display 
and controller board. 21 wires, then a space of approx. 0.6", and 5 more 
wires, all in one line.

If I could identify which wire was the common, that would be good. Are 
these displays a common pinout setup, if so could someone point me 
toward info.

Thanking in advance.
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