Uniwill 340S2 Service Manual download (Page 5 of 88)

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Manual type:Service Manual
Pages:88
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Page 5 of 88
Chapter 1
General System Description
340S2
5
Rev : B
1.2.2
LCD Display
14.1” TFT
13.3” TFT
12.1” TFT
13.0” HPA
12.1” HPA
1.2.3
Power Plans
Power Source Descriptions
+5V
: 5V power source
+3V
: 3.3V power source
+12V
: 12V power source
CPU_Core : CPU Core power source.
For Celeron, the voltage is 2.0V.
For Pentium III, it is 1.8V.
+1.5V
: CPU AGTL+ termination power source
VCC_CMOS
: CPU CMOS pull up voltage.
For Celeron, the voltage is 2.5V.
For Pentium III, it is 1.5V.
+2.5V
: 2.5V power source
+1.8V
: 1.8V power source for SIS630
KBVCC
: KBC 3.3V power source
KBVCCA
: KBC AD/DA 3.3V reference voltage
VCCRTC
: Real time clock power source
+5V_AUX : LAN 5V always power source
+3V_AUX : LAN 3.3V always power source
+3V_RX_TR
: LAN 3.3V analog power source
+3V_TX_TR
: LAN 3.3V analog power source
LCDVCC
: LCD display 3.3V power source
VIN
: Inverter 12~20V power source
ADAP+
: 20V Power supply from AC adapter
AMPVDD : 5V analog power for audio
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