Read Sony KV-G21MW3 Service Manual online
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KV-G21MW3/G21QW3
RM-869
If no acknowledgement is returned from a device which is turned "ON", the device has a problem.
In this case, one of the LED's responding to the problem device will flicker a defined number of times.
Flickering is operated by lighting the LED's for 60ss each time.
The flickering frequency responding to each failed device is shown below.
SELF DIAGNOSIS FUNCTION
Board name
Ref. No.
Device
Flickering Frequency
A Board
IC003
NONVOLATILE
MEMORY
(ST24C08FB6)
1
A Board
IC300
Y/C JUNGLE
(TDA8374A)
3
All the devices are checked one after another from the left of the table.
If an error is found, the responding LED will start flickering.
So, if more than 1 device have failed, only the one on the left side will flicker.
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