Casio PA-2400U Service Manual And Parts List page 3

POWER SUPPLY CIRCUIT ------------------------------------------------------------------- 37
Primary Circuit---------------------------------------------------------------------------- 37
5 V Circuit ---------------------------------------------------------------------------------- 38
3 V Circuit ---------------------------------------------------------------------------------- 39
PCMCIA Circuit --------------------------------------------------------------------------- 40
LCD power Circuit ----------------------------------------------------------------------- 41
Voltage Line ------------------------------------------------------------------------------- 42
DETECTOR CIRCUIT --------------------------------------------------------------------------- 43
DIAGNOSTIC PROGRAM --------------------------------------------------------------------- 44
Introduction-------------------------------------------------------------------------------- 44
OPERATION CHECK --------------------------------------------------------------------------- 45
Voltage Detectors Check -------------------------------------------------------------- 61
DISASSEMBLY • ASSEMBLY --------------------------------------------------------------- 63
1.Remove dummy card, CF card and stylus. ----------------------------------- 63
2.Slide the lever to release position and remove the battery cover
then the main batteries out. ------------------------------------------------------- 63
3.Removal of backup battery. ------------------------------------------------------- 63
4.Removal of MROM ass'y. ----------------------------------------------------------- 64
5.Removal of lower case. ------------------------------------------------------------- 65
6.Removal of main PCB.--------------------------------------------------------------- 66
7.Removal of touch panel. ------------------------------------------------------------ 67
EXPLOED VIEW --------------------------------------------------------------------------------- 68
PARTS LIST --------------------------------------------------------------------------------------- 69
SCHEMATIC DIAGRAMS --------------------------------------------------------------------- 71
P686-MAIN (MAIN) ----------------------------------------------------------------------- 71
P686-MAIN (POWER SUPPLY) ------------------------------------------------------ 72
P686-MAIN (LCDM I/F)------------------------------------------------------------------ 73
P668-MROM (MASK ROM) ------------------------------------------------------------ 74
P686-LED (LED) -------------------------------------------------------------------------- 75
P686-PWKEY (POWER KEY) --------------------------------------------------------- 76
P686-2KEY (EL. CALB KEY)---------------------------------------------------------- 76
P686-ADP (AC ADAPTOR) ------------------------------------------------------------ 77
P686-3PIN (3PIN I/F)--------------------------------------------------------------------- 77
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