Service manual

Belinea 101910
28 P3.1/TXD/HSDA SDA-VGA/Txd (Debug)
19 P3.2/INT0 INT
18 P1.1 SDA(Debug)
20 P1.2 SCL(Debug)
26 P6.1/AD1 RESET
42 P5.3 LED-Orange
37 P4.1 Audio-Mute
40 P5.5 Audio-Stby-Power
36 P4.0 Inverter On/Off
3 P5.0 Panel power On/Off
4.1.3 Audio controller TDA7496L (AU1)
The TDA7496L is a stereo 2W+2W class AB power amplifier. Features of the TDA7496L include
linear volume(pin6), Stand-by(pin11) and mute(pin12) functions.
Audio output characteristics
Audio amplifier ST TDA7496
Maximum Audio Output Power 1W 2 @<3% Distortion , Speaker 1W2
Line Input Impedance 10K ohm
4.2 Power Module
The power module includes an Inverter and Power regulator. The electrical specification described as
following;
4.2.1 Power characteristics
.
Input Rated Input Voltage 90~240 Vac,50/60Hz
Operation Input Voltage Range 90~264 Vac,47~63Hz
Max Input AC Current < 1.2A
Efficiency 12Vdc load 3.5A
Brightness Voltage from 0.3~3Vdc
ON/OFF Voltage: High(3.3Vdc)/Low(0Vdc)
Brightness Voltage (Vadj) 0.3Vdc(Max) ~ 3Vdc(Min)
On/Off Voltage High(3.3Vdc)/Low(0Vdc)
Output Static Output Characteristics 12V/3.5A Output: 11.4Vdc ~ 12.6Vdc
MAXDATA Servicemanual 111908 Page 22
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