3-6
ONE POINT REPAIR GUIDE
5. AUDIO OUTPUT IS SMALL OR NO AUDIO OUTPUT
Audio signal output is small or not. when you power on the Middle Power Mini System.
5-1. AMP IC (IC700~IC705)
5-1-1. Solution
Replace IC700~IC705 on MAIN board.
5-1-2. How to troubleshoot (Countermeasure)
1) Please check if this system is on bass blast mode.
C, RL and RR make sound only on bass blast mode.
2) Check the IC700~IC705 on your eyes.
3) Check the audio signal output check (pin13 of IC700~IC705).
First, Check the PWM Data input (pin3 of IC700~IC705)
4) If the audio signal output has no output, try to change IC which has no output.
5) Lastly, check Speaker Terminal (TM700).
5-1-3. Service hint (Any picture / Remark)
< MAIN board top view >
IC700~IC705
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