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1-16 EXTENSA 700/710 Service Guide
DC-AC inverter is used to generate very high AC voltage, then support to
LCD CCFT backlight user, and is also responsible for the control of LCD
brightness. Avoid touching the DC-AC inverter area while the system unit is
turned on.
OVP (Over Voltage
Protection, V)
5.52~5
.55
3.642~
3.693
15~17 7~9 -
OCP (Over Current
Protection, A)
4~6 4~6 0.3~0.
4
--
DC-AC Inverter
Item Specification
Vendor & model
name
Ambit T622.087.C.00
Input voltage (V) 7.3 (min) - 22 (max)
Input current
(mA)
- - 700 (max)
Output voltage
(Vrms, no load)
1300 (min) 155 1600 (max)
Output voltage
frequency (kHz)
40 (min) - 65 (max)
Output current
(mArms)
(T62.087.C.00)
0.7~5.9 (min) 1.0~6.5 (typ) 1.3~7.1 (max)
Output current
(mArms)
(T62.086.C.00)
0.6~5.4 (min) 1.0~6.0 (typ) 1.4~6.6 (max)
LCD
Item Specification
Vendor & model name Hitachi
SX31S002
IBM ITSV50D2 Hitachi
TX34D62
Mechanical Specifications
LCD display area
(diagonal, inch)
12.1 12.1 13.3
Display technology STN TFT TFT
Resolution SVGA
(800x600)
SVGA
(800x600)
XGA
(1024x768)
Support colors - 262,144 colors
DC-DC Converter
Item Specification
700SG-1.fm Page 16 Monday, June 8, 1998 6:38 PM