Chapter 3. System Block Diagram; Chapter 7. Power Supply Unit - Sharp PC-6220 Service Manual

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c~I?k~220=c~_
5) Remove :the
fron~
_and: rear'eabinets of the LCD section_ ,The 'pawl
which is-fixing the cabinetsis'sh6wn: with (_.)In.Fig __ ,Z--11.
,6)
~~_movf3.the fj)£~lJre
which fixes the LCD section
an~
the body.
7)
Remov~ _~h8 .r~fl~9tiofl plat~
of the
~acklig~t:
8) ,
RemoVe the -ffxing sCreWs and the; conn'e'ctors o-f the iIlumiilation
control PWB and'the backlight convertor PWB',' and remove the
PW8's.
Assemllly,
1) Assemble the LCD unit by reversing the· disassembly procedure.
Carefully checK
that
ffiere
IS ,lid
finaenJtinf. on, the-LCD
s.edLoo..Jf
-i-there is; 'clean with a cloth 'and,alcohbl. The cloth must be fine and
smooth, such as glass wiper cloth.
2) Attach the upper cabinet to the set.
3) Attach the lower cabinet to the set.
4) Attach the keyboard 10 the set.
CHAPTER 3. System block diagram
1J'~JS_ f'_~8!,\_"!I_Q?~?
;
-
~
----
_.
-- ----
~
:
L
_il
20MB
Fixed Disk
82C455
VGA Controller
Connector
- Portable FDD
U"t
• Expansion Unit
Card Connector
:-~Extend
SID Card
: • Modem Card
i ~~~lil~~~~~~:~==~=~~ ~_:CRT
I/F Card
Video/LCD
Signal
: Ten kay
: Unit
Des's
Note) Dot line
i n d i c a t t : e : s ~ o : p : t i : o n : a : I - . ---t~t~~~fTIlliii~-rr;;;~~l-~~~~
Control
-12-
lCO
Power
Power
Supply
Unit
External ConnedorPower
.""i------ -------.----.
~j __ ~~~~~ _~~t~~~
___ :;
ACAda~
Jack
AC
Addaptor