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Kenwood KRC-609
Kenwood KRC-609
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Old 22nd January 2021, 06:37 AM   #1
caraudioguy2100 is online now caraudioguy2100
diyAudio Member
Join Date: Aug 2010
Default 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
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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Old 22nd January 2021, 12:35 PM   #2
Perry Babin is offline Perry Babin  United States
diyAudio Member
Join Date: Nov 2003
Location: Louisiana
Do you have 5v on the VDD pins of the microcontroller?

Do you see any pulses on any terminals of the microcontroller?
Anyone who purchased the repair tutorial, email me (babin_perry@yahoo.com) if you want to download the latest version.
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