How do I bench test a digital clock?
#1
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Join Date: Feb 2005
Location: San Diego
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Bought a like new digital clock on ebay and want to bench test it before selling it on ebay. Have I read the electrical diagram correctly?
pin:
30 - battery 12v+ always on to power clock (Red in harness)
31 - ground (Brown in harness)
15 - Ignition-on 12V+ to activate lcd backlight (Green in harness)
58 - to headlight switch for night illumination (Grey in harness)
Thanks. Howard
pin:
30 - battery 12v+ always on to power clock (Red in harness)
31 - ground (Brown in harness)
15 - Ignition-on 12V+ to activate lcd backlight (Green in harness)
58 - to headlight switch for night illumination (Grey in harness)
Thanks. Howard
Last edited by SDGuy; 06-04-2005 at 06:16 PM.
#3
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Terminal # 30 is 12v positive and termimal # 31 is ground.
The other two are for the light one for bright during the day and one for dim at night.
Simply use the battery on the car with two pieces of wire or a battery charger and a pair of volt meter leads connected to 30 and 31 to test the clock, its that easy.
The other two are for the light one for bright during the day and one for dim at night.
Simply use the battery on the car with two pieces of wire or a battery charger and a pair of volt meter leads connected to 30 and 31 to test the clock, its that easy.
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