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Technical Data, Mechanical data, Detailed Circuit diagram with components value, PCB layout. Actual PCBs Print. Component List, Spare parts code list and Input output detail. It cover LBB1211, LBB1212, LBB1213, LBB1216, LBB1217.
It is the actual Service Manual for SQ10
NOTE 1. Forced
STARTING of electrolytic
supply block, If repair electric potential is kept charged the
to be attempted capacitors
in the set that 102) even
in the power cord
the electrolytic defect to prevent
secondary In order
can occur. the secondary trouble, perform the following measures before starting repair work.
Remove Connect has clips wire
the AC power a discharging at both ends. cord. resistor Connect at an end of lead the other wire that
II MAIN C.B
end of the lead
chassis. end (+VH) end of the discharging of C101. (For resistor two to the
Contact positive Contact @to way. Check
the other (+) side the same the negative (For that two
seconds) as step
of the discharging (-VH) of C102
in the same
seconds) across C101 and C102 has decreased @ L
1 V or less
or an oscilloscope.
a discharging voltage
to the following
Discharging Rated power (W) Parts number resistor (Q) 3 5 C102) of the electrolytic on schematic capacitors diagram 87-AOO-247-090 87-AOO-232-090 can change before depending on the models. work. Be sure to check the
220 numbers (C101,
of the charging
Be sure confirming
to check that
the MICROCOMPUTER. Exchange the MICROCOMPUTER after
exchanging is surely
terminal (INPUT) is âLâ,
MICROCOMPUTER is âHâ, be turned the MICROCOMPUTER on. Therefore, be sure is judged to check to be operating voltage of
the HOLD When terminal
of the MICROCOMPUTER the main power cannot
correctly. the HOLD When
this terminal before
exchange. is not defective, the abnormality the HOLD circuit terminal can also go âLâ when the POWER AMPLIFIER to âLâ. has any
the MICROCOMPUTER that triggers
on the MAIN
C. B. that
sets the HOLD
or no good
of the MICROCOMPUTER
on the AC main that the main
on and the HOLD
of the MICROCOMPUTER
is âLâ level,
to be working
to be good.
I PIN101 A $) â
it is PIN
POWER PIN â.â number is different upon microprocessor. .â. â . .â. â .â. â .â.
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