Sharp OZ-9600II - Servicing, Current Consumption, and Notes

OZ-9600 II
IQ~9200
8. Servicing circuit
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oa SPSS
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RB400D
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SERVICE SW
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1028
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1D26 ON238 nia : NID20
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* .When VCC voltage is restured from the fatal level by connecting 9. Current consumption check
the adaptor, the detector (RTC): keeps detecting LOW output of the
: operation battery. ‘ON/OFF reset key input is inhibited by the (RTC)
"memory protection circuit, and the system is kept at OFF state.
* The combination of the
@ OFF current measurement (main body)
Current consumption under OFF state must be max. 161A
@® Current measurement during display (main body)
_ [ON] + (S].+. wal (SERVICE, SW)+RESET bre: The current consumption duririg display must be max. 9mA.
bt Next. _... :
oe @ Backup current measurement
‘[onl- + (sI. + (Sa (SERVICE sw) [RESET SWI. The backup current consumption must be max. 4.2nA’
——— ; :
eep
Note:,External.power supply
*:
The
CPW
jndge.the
combination
of
key
(:
(ON)
+.
Sl
)-
and:
rising
e
is performed without batter voltage detection. »
* This allows a serviceman to perform special rising of the set whose
operation voltage is below the fatal level by inserting a AC adaptor
power to confirm the memory display and then replace the battery
(Secret function)
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