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1-40 Service Guide
1.6.26 DC-AC Inverter
DC-AC inverter is used to generate very high AC voltage, then supply to LCD CCFT backlight use.
The DC-AC inverter area should be void to touch while the system unit is turned on.
Table 1-37 DC-AC Inverter Specifications
Item Specification
Vendor & Model Name Ambit T62-055.C.00 Ambit T62-088.C.00
Used LCD type
IBM ITSV50D (12.1” TFT) LG LP133X1 (13.3” TFT)
Input voltage (V) 7 ~ 19 7 ~ 19
Output voltage (Vrms, with load) 650 (typ.) 650 (typ.)
Output current (mArms, with load) 2 ~ 5 2.5 ~ 5
1.6.27 AC Adapter
Table 1-38 AC Adapter Specifications
Item Specification
Vendor & Model Name ADP-45GB-C1
Input Requirements
Nominal voltages (V) 90 - 264 Vac, single phase
Nominal frequency (Hz) 47 -63
Inrush current (A) (cold start) 50 (@115Vac), 100 (@230Vac)
Efficiency 84% (min., 115Vac) full load
Output Ratings
Output voltage (V) +18
Noise + Ripple (mV) 300 mVp-p
Load (A) 0 (min.), 2.5 (max.)
Dynamic Output Characteristics
Turn-on delay time 2 sec (max., @ 115 Vac)
Hold up time 5 ms (min., @ 115 Vac input) full load
Short circuit protection Output can be shorted without damage (auto recovery)
Dielectric Withstand Voltage
Primary to secondary 3000 Vac (10mA for 1 second or 4242Vdc 10mA for 1 second)
Leakage current .25mA (max. @254Vac 60Hz)
Regulatory Requirements
1. CISPR 55022 and CISPR55014, class B (@230Vac and 115Vac) requirements. [Scandinavia]
2. FCC 47 CFR Part15, class B (115Vac) with 6db of margin. [USA]