Sanyo CE14A2-C, Руководство по обслуживанию

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Service manual CHASSIS 2112-Series EC7-A
30
7.7.3 Error 4.
ERROR_4
Set the TV in forced
switch-on mode (PL103 pressed)
Are there the +8V?
Are there the +5V?
Check the continuity signal to pin 9
of IC100 ( -SUP_FAIL signal)
Sí
Sí
Does the TV set has a right
start and it is shown the picture?
No
The +8V are delaying in
raise more than normal
Yes
Check Q850 and periphery
- Check a possible short-circuit at +5V
- Check R861 and the continuity of 8V path to R861
No
- Check a possible short-circuit at +8V.
- Check Q853, Q854, Q859, Q860 and
its periphery
Are the voltage B1_L in R869?
No
Check Q851, Q852 and periphery
No
Yes
7.7.4 Error 11.
ERROR_11
Check short-circuits to ground
in lines SDA or SCL
Check IC400
Switch on the TV set with Mkey
pressed (inhibited protections)
Check IC400
IC400: Check if the voltage at pin 8
is lower than before R401
IC125: Check if the voltage at pin 6
is lower than before R154
Check IC125
Check IC125
Yes
Yes
Yes
Yes
IC125: Check if the voltage at pin 5
is lower than before R155
IC400: Check if the voltage at pin 7
is lower than before R400
Check IC100