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Hi. I have Kenwood A94. Amp stay in standby. I open amplifier, all fusess are good, transformer is good. In power supply there are two relays, i open it and measere, all normal. All power transistors is good, all solders is perfect. +12v are good. Any suggestions, please.
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Hi. I have Kenwood A94. Amp stay in standby. I open amplifier, all fusess are good, transformer is good. In power supply there are two relays, i open it and measere, all normal. All power transistors is good, all solders is perfect. +12v are good. Any suggestions, please.
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Please check 1 to 3 items or voltages in the schematic
1. the fuse for standby supply voltage
2. the IC3 supply 6V voltage for all MCU and DSP
3. the speaker protection output voltage, if a high voltage output means the amp output DC
Good luck!
1. the fuse for standby supply voltage
2. the IC3 supply 6V voltage for all MCU and DSP
3. the speaker protection output voltage, if a high voltage output means the amp output DC
Good luck!
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Hi. Thanks for reply.
1. On Fuse 7 (F7) for stnby i have 5.3v
2. On output on IC3 i have 6v.
3. I have 0 v
1. On Fuse 7 (F7) for stnby i have 5.3v
2. On output on IC3 i have 6v.
3. I have 0 v
The voltages values seems to be normal for the amp.
You mention that your amp current stay in standby and please explain more details about the amp's situation.
-In the previous time is this amp working normal?
-Will there be anything happened to the amp to make it stay in standby mode when you using the amp before.
-How's the amp react when you try to operate it by push panel buttons(power on) or remote control keys(power on, sleep, etc.)
-Can you try the amp function "memory clear" or "Test mode" working or not
You mention that your amp current stay in standby and please explain more details about the amp's situation.
-In the previous time is this amp working normal?
-Will there be anything happened to the amp to make it stay in standby mode when you using the amp before.
-How's the amp react when you try to operate it by push panel buttons(power on) or remote control keys(power on, sleep, etc.)
-Can you try the amp function "memory clear" or "Test mode" working or not
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Last edited:
Now, amplifier is working, 17 capacitor has ESR> 14kom??
Patrick thank you very much for your reply.
Patrick thank you very much for your reply.
