Starting The Service Mode - Aiwa TV-CN143 Service Manual

SETTING OF IIC BUS DATA
This model is designed to adjust most parts of the image projection
and deflection system by using the jig remote controller.
Preparations:
• Modify the hidden keys on the RC-6VT06 jig remote controller
(TV-C142/86-LB4-951-010) so that they can easily be pressed.
2 keys to be modified. (Refer to the following drawing)
Aging Mode Operation Method:
Make sure that confirmation when replacing EEP ROM.
1. Enter to the aging mode by pressing the "TEST" key on the
remote controller. (Fig. 1)
2. Press the "SYSTEM" key to check the status of distinction
switch.
• When replacing EEP ROM, change initial setting of
"3ST" to "1 MONO". (Fig. 2)
• If the contents are different, move 1 to F by using a channel
key and change to "0" or "1" indications by using a volume
key. (Fig. 2)
Contents of Aging Mode:
1. Release "Auto Power Off" function when no input is supplied.
Release "Auto Power Off" function.
Use this mode for warming up (aging) during CRT adjustment.
2. AFT S-curve status indication
The condition of AFT S-curves are indicated by "OK" for
suitable tuning, "UP" for too high or "DN" for too low.

Starting the Service Mode:

Hidden key "TEST":
• Press the "TEST" key on the jig remote controller once to enter to the
"Aging Mode" (Refer Fig. 1).
• Press the "TEST" key on the jig remote controller once more time to
enter to the "Adjustment Mode".
Hidden key FINISH:
• The accumulated hours in the "Aging Mode" will be reset by pressing
the "FINISH" key on the jig remote controller.
• Do not press this key during general repairs.
18