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Thread Tools |
22nd January 2021, 06:37 AM
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#1 |
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diyAudio Member
Join Date: Aug 2010
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Kenwood KRC-609
Got an old kenwood cassett deck .
Unit will not power up fuse is good . Wondering if the IC that controls the speaker outputs also controls the unit to power up ? TA8263BH Or am I looking for something else as to why it won’t power up
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Multimeter:Klein Tools MM6000 Hakko FX-888D soldering station Hakko FR-300 desoldering gun dual channel oscilloscope 2 ohm 100 watt resistor Pyramid 40 amp power supply and a kenwood KDC-248U fornsiganl source . M02020 Testoscillator |
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22nd January 2021, 12:35 PM
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#2 |
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diyAudio Member
Join Date: Nov 2003
Location: Louisiana
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Do you have 5v on the VDD pins of the microcontroller?
Do you see any pulses on any terminals of the microcontroller?
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Anyone who purchased the repair tutorial, email me (babin_perry@yahoo.com) if you want to download the latest version. |
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