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Dla tego produktu nie napisano jeszcze recenzji!
 ;
Schematy są ale można wysilić się i zrobić kolorowy skan i o większej rozdzielczości. Wtedy schematy płytek będą czytelniejsze. Całość super jako wartość merytoryczna. Wszystkie dane potrzebne do podłączenia różnego rodzajów urządzeń takich gramofon, CD itd.
 ;
Szybko, sprawnie i tanio. Serwis godny polecenia. Będę polecał innym
;
Ogólnie jest OK, z wyjątkiem obrazu płyty głównej, który jest miejscami mało czytelny, ale można sobie poradzić.
;
Dokładna dokumentacja, pomogła w szybkiej naprawie telewizora. Dziękuję!
;
jedyne do czego mogę mieć zastrzeżenie to jakość zdjęć zawartych w przesłanej instrukcji serwisowej ponieważ są fatalnej jakości, praktycznie nieczytelne. tak poza tym jestem zadowolony to jest to czego szukałem.
NOTE 1. Forced
When across
ON
BEFORE
STARTING of electrolytic
REPAIR capacitor
uses though
discharge
is going
of power
relay circuit
supply
block
supply block, If repair electric potential is kept charged the
repair
to be attempted capacitors
in the set that 102) even
in the power cord
the electrolytic defect to prevent
(C101,
AC power
is removed.
is attempted
in this
condition,
secondary In order
can occur. the secondary trouble, perform the following measures before starting repair work.
Discharae -.
Remove Connect has clips wire
wocedure
the AC power a discharging at both ends. cord. resistor Connect at an end of lead the other wire that
I
II
II MAIN C.B
end of the lead
to metal
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
resistor
(-) side
in the same
seconds) across C101 and C102 has decreased @ L
1
voltage using
1 V or less
a multimeter
or an oscilloscope.
@
Select
a discharging voltage
resistor (V)
referring
to the following
table.
Fig-1
Charging
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
(Clol,
25-48
102)
100
220 numbers (C101,
49-140
Note:
The
reference
reference
numbers
of the charging
capacitors
starting
the discharging
2.
Check
Be sure confirming
items
to check that
before
exchanging
items before
the
MICROCOMPUTER
the MICROCOMPUTER. Exchange the MICROCOMPUTER after
the following
exchanging is surely
the MICROCOMPUTER
defective.
2-1.
Regarding When
the
HOLD terminal
terminal (INPUT) is �L�,
of the
MICROCOMPUTER is �H�, 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
the terminal
exchange. is not defective, the abnormality the HOLD circuit terminal can also go �L� when the POWER AMPLIFIER to �L�. has any
the MICROCOMPUTER that triggers
abnormalities
detection
on the MAIN
C. B. that
sets the HOLD
terminal
q
Good
or no good
judgement
power. power
of the MICROCOMPUTER
@
@
Turn
on the AC main that the main
Confirm not.
is turned
on and the HOLD
terminal
of the MICROCOMPUTER
keeps
the �H�
level
or
@
When
the HOLD
terminal
is �L� level,
the abnormality
detection
circuit
is judged
to be working
correctly
and the
MICROCOMPUTER
is judged
to be good.
�.�
.�.
FRONT C.B
I
i
r
I CON601
.�. �.�.
MAIN C.B
�.�
(@J
-�
MICROCOMPUTER
I PIN101 A $) �
In some
models,
it is PIN
OVER
LOAD
DET
POWER
AMP
POWER
AMP
POWER PIN �.� number is different upon microprocessor. .�. � . .�. � .�. � .�.
SUPPLY
depending
�
..
Fig-2-1
�5�
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