Hey Guys,
I decided to stop working on the expensive STEG K2.02 and start working on a cheaper one, because these are my first Car Amp repairs.
Ok so now to my patient.
First i recognized prior repair attempts. As you can see on the picture.
What will help me a lot, would be a service manual or a schematic of this board.
I thermal imaged the PCB when power on the amp.
IC50 (HIP4080AIPZ) is getting hot and ZD10 and the 2 330 Ohms Resistors.
Also theres a prior attempt with the white jumper wire.
Where to start?
I decided to stop working on the expensive STEG K2.02 and start working on a cheaper one, because these are my first Car Amp repairs.
Ok so now to my patient.
First i recognized prior repair attempts. As you can see on the picture.
What will help me a lot, would be a service manual or a schematic of this board.
I thermal imaged the PCB when power on the amp.
IC50 (HIP4080AIPZ) is getting hot and ZD10 and the 2 330 Ohms Resistors.
Also theres a prior attempt with the white jumper wire.
Where to start?
This diagram will get you close.
What's wrong with the amp?
Those components often run hot but the 4080 may be running hotter than normal.
Did you read the class D troubleshooting page (CDTS in the quick links)?
What's wrong with the amp?
Those components often run hot but the 4080 may be running hotter than normal.
Did you read the class D troubleshooting page (CDTS in the quick links)?
Thanks for the Diagram.
I miss the Zener in this Diagram.
Did you know what value of ZD1C?
I also pulled the 4080, but nothing changes.
Diode goes up to 90°, then i stopped applying power to the amp.
What i also discovered with my Handheld Oscilloscope:
HIP4080A
Pin 6 Triangle wave as it should be
Pin 7 100mv 50Hz Signal no matter what frequency i play through RCA (is that simply noise?)
I miss the Zener in this Diagram.
Did you know what value of ZD1C?
I also pulled the 4080, but nothing changes.
Diode goes up to 90°, then i stopped applying power to the amp.
What i also discovered with my Handheld Oscilloscope:
HIP4080A
Pin 6 Triangle wave as it should be
Pin 7 100mv 50Hz Signal no matter what frequency i play through RCA (is that simply noise?)
Perform a ctrl-f search on the CDTS page for:
ZD1C
Is your scope grounded to the ground terminal of the 12v power supply?
ZD1C
Is your scope grounded to the ground terminal of the 12v power supply?