Akai LTA-26C904, Service Manual

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● High integration
● Standby and mute mode
● No switch switching noise
● 12V Power filtering
● Low working current
● Output current short-circuit grounding protection
● Overheat protection
● Linear output to drive external earphone, PC and portable audio equipment
Pin introduction:
Pin Designation
Function description
1 OUT1  Loudspeaker negative pole output terminal 1
2 GND1 Ground
3 VCC1 +12V Power
4 OUT1  Loudspeaker positive output terminal 1
5 N.C. No connection
6 IN1  Positive pole input terminal 1
7 N.C. No connection
8 IN1  Negative pole input 1
9 IN2  Negative pole input 2
10 MODE Operation mode selection (standby, mute, work)
11 SVR Voltage decoupling filtering (grounding)
12 IN2  Positive pole input terminal 2
13 N.C. No connection
14 OUT2  Loudspeaker negative output terminal 2
15 GND2 Ground
16 VCC2 +12V Power
17 OUT2+ Loudspeaker positive output terminal 2
TDA8944J internal block diagram: