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A B C D E
Compal confidential Block Diagram
Model Name : CY23 LA-1281 Rev:2.0
1 1
INTEL FC-PGA370
APICCLK
CRT
om
HCLK_CPU
Connector Page 2,3
page 14
HA#(3..31) HD#(0..63) Y1
14.318MHZ
TV_OUT 14MOSC
Connector Twister PN-133T
HCLK_NB
Clock Generator 14MCRT/14.3M_TV
.c
page 13 PCLK_NB
PCLK_1394
(VT8606)PCIGNT#/PCIREQ#
DCLKWR
ICS 9248-195
page 11 PCLK_PCM
page 4,5,6 PIRQA# DCLKO
op
PCLK_MINI
CLK_SDRAM0
MA(0..13)
TFT Panel
MD(0..63)
CLK_SDRAM2,3
Interface
2 2
page 14
pt
On Board
AD(0..31)
Memory Damping 64/128MB SO-DIMM 0
Resistor (Bank 2,3)
page 6 (Bank 0) page 8
La
PCLK_SB
page 7
PCI BUS
ia
USB Port 0,1
Mini PCI CardBus FIR DIRECT
IEEE 1394 VT686B 48MHZ
CD-PLAY
Socket OZ6933
as
PIRQB#/PIRQD#
PIRQC#
GNT#2/REQ#2 AC97 page 25
page 9,10
14MOSC
FUNCTION
GNT#0/REQ#0
GNT#1/REQ#1
PIRQA#/PIRQB#
GNT#3/REQ#3
AD24
Interface IDE CHANNEL 1 page 18
page 23 AD27/AD28 page 15 AD15 page 29
page 27
3
ah S A ( 0..15)
Pull Up/Down 3
Slot 0& 1 Slot 0 S D ( 0..15) Resistor
page 29
page 16 ISA BUS IDE Damping page 12
Power On/Off Resistor
Reset Circuit
.R
page 17
page 28
KeyBoard
87570 IDE Connector PIO
w
page 20 page 24
(FDD/HDD/CR-ROM)
DC/DC Interface
RTC Battery page 19
w
page 22
I/O Buffer KBD
w
page 21 page 21
4 4
Power Circuit BIOS Touch Pad
DC/DC page 21 page 26
page
30,31,32,33 Compal Electronics , Inc.
Title
T H I S S H E E T OF ENGINEERING DRAWING IS THE PROPRIETARY PROPERTY OF COMPAL ELECTRONICS, INC. AND CONTAINS CONFIDENTIAL AND SCHEMATIC,M/BLA-1281
PROPRIETARY NOTE T R A D E S E C RET INFORMATION. THIS SHEET MAY NOT BE TRANSFERRED FROM THE CUSTODY OF THE COMPETENT DIVISION OF R&D Size Document Number Rev
D E P A R T M E N T EXCEPT AS AUTHORIZED BY COMPAL ELECTRONICS, INC. NEITHER THIS SHEET NOR THE INFORMATION IT CONTAINS MAY BE B 2A
401202
U S E D B Y OR DISCLOSED TO ANY THIRD PARTY WITHOUT PRIOR WRITTEN CONSENT OF COMPAL ELECTRONICS, INC.
Date: