Service Manual

(/(&75,&$/6(&7,21
 ,PDJHSURFHVV$6,&+*&+)
D*HQHUDO
7KH $6,& LVFRPSRVHGRIWKH WKUHH PDMRUEORFNVWKHLPDJHSURFHVV
VHFWLRQWKHSULQWFRQWUROVHFWLRQDQGWKH,)VHFWLRQ
,PDJHSURFHVVVHFWLRQ
:LWKLPDJHGDWDIURPWKH&&'3:%LQWKHRSHUDWLRQPRGHGHWHU
PLQHG E\WKHUHJLVWHUVHWXSVKDGLQJ$(SURFHVVLQSXWγ FRUUHF
WLRQ DUHD VHSDUDWLRQ ILOWHU SURFHVV UHVROXWLRQ FRQYHUVLRQ ]RRP
SURFHVV RXWSXW γ FRUUHFWLRQ ELQDU\ FRQYHUVLRQ HUURU GLIIXVLRQ
GLWKHUPHWKRGVLPSOHELQDU\FRQYHUVLRQDUHSHUIRUPHG
3ULQWFRQWUROVHFWLRQ
:KHQFRS\LQJWKHLPDJHSURFHVVHGGDWDDUHRXWSXWWHGWRWKH/68
DFFRUGLQJ WR WKH /68 ZULWLQJ WLPLQJ :KHQ VFDQQLQJ WKH LPDJH
GDWD DUH PDGH LQWR ELW ZLGWK DQG RXWSXWWHG WR WKH ,) VHFWLRQ
86%
,)VHFWLRQ
&RQWUROVWKH'5$0ZKLFKLVWKHLPDJHGDWDEXIIHUDQGSURFHVVHV
GDWDVHQGUHFHLYHEHWZHHQWKH86%,)DQGWKH,(((,)
7KH$6,&LVFRQWUROOHGE\ZULWLQJWKHRSHUDWLRQPRGH DQGWKHQHFHV
VDU\VHWXSYDOXHVRIWKHRSHUDWLRQPRGHLQWRWKH$6,&FRQWUROUHJLVWHU
EHIRUHVWDUWLQJHDFKRSHUDWLRQ)RU$6,&3LQFRQILJXUDWLRQUHIHUWRWKH
WDEOHDWWKHHQGRIWKLVGRFXPHQW
E$6,&6LJQDOWDEOH
 86%,1 ,QSXW ,)3:%GHWHFWLRQVLJQDO
 ,QSXW 1&
 ,QSXW 1&
 $YVV '*1'
 *1' '*1'
 6&$163 2XWSXW 6FDQ6723VLJQDO
 6&$167 2XWSXW 6FDQ67$57VLJQDO
 75$1667 2XWSXW $6,&WUDQVIHUVLJQDO
 35,1767 2XWSXW 3ULQW6WDUWVLJQDO
 6307 2XWSXW $')PRWRUVLJQDO
 63070,5&17 2XWSXW
,QSXW
$')PRWRUVLJQDOPLUURU
FRXQWHU
 6307 2XWSXW $')PRWRUVLJQDO
 6307 2XWSXW $')PRWRUVLJQDO
 *1' '*1'
 *1' '*1'
 9FF &389
 36/ 2XWSXW 3RZHUVDYH/('FRQWURO
 1&
 &6 2XWSXW $6,&FKLSVHOHFW
3,1
1R
6LJQDOFRGH
,QSXW
2XWSXW
2SHUDWLQJ
Scan start
CCD
PWB
Shading
CCD drive
AE
Resolution conversion,
Zooming, lmage
process circuit
Print data process circuit
DRAM control
PRINT control
DRAM
8MB
LSU
HSYNC
VSYNC
To CPU bus
ASIC
Image process section
I/F section
Print control section
ASIC control resistor
3,1
1R
6LJQDO1DPH ,1287
&RQQHFWHG
WR
'HVFULSWLRQ
 FSXBDG ,1 &38 &38DGGUHVVEXV
 FSXBDG ,1 &38 &38DGGUHVVEXV
 FSXBDG ,1 &38 &38DGGUHVVEXV
 FSXBDG ,1 &38 &38DGGUHVVEXV
 9&&&25('&
9
3RZHU
 FSXBDG ,1 &38 &38DGGUHVVEXV
 FSXBDG ,1 &38 &38DGGUHVVEXV
 *1'&25('& 3RZHU
 FSXBDG ,1 &38 &38DGGUHVVEXV
 VJV 287 7UDUUD\,& $')JDWHVROHQRLG
FRQWUROVLJQDO+21
 VUUF 287 7UDUUD\,& $')UHVLVWUROOHUFOXWFK
FRQWUROVLJQDO+21
 VSXV 287 7UDUUD\,& $')GRFXPHQWIHHG
VROHQRLGFRQWUROVLJQDO
+21
 VSIV 287 7UDUUD\,& $')GRFXPHQW
WUDQVSRUWVROHQRLG
FRQWUROVLJQDO+21
 PUSV 287 7UDUUD\,& $')PRWRUFXUUHQW
FRQWUROVLJQDO
 PUSV 287 7UDUUD\,& $')PRWRUFXUUHQW
FRQWUROVLJQDO
 RSHBODWFK 287 7UDUUD\,& 2SHUDWLRQFLUFXLWODWFK
VLJQDO'DWDWDNHLQDW
/
3,1
1R
6LJQDO1DPH ,1287
&RQQHFWHG
WR
'HVFULSWLRQ