ekipa007
18-06-2021, 07:51 AM
Good morning,
I have the identical problem as @Lumpy2 here: http://www.refrigeration-engineer.com/forums/showthread.php?19150-Daikin-Control-Unit-PCB-Repairs . I have a Daikin RZP100 from which I made a heat pump to heat my house - medium water.
Unfortunately, I recently got a U4 error (no communication) on my display.
The outdoor unit board (PC0104H-1D) near X100A has a burnt 51R/5W resistor - luckily the resistor value is readable.
I've already bought the resistor and now I'm waiting for MA3810, which I suspect is also damaged. I will also replace transistor C1093(IC102B) and optocoupler P521(PHC101B).
However, I have a question for my colleagues:
SMPS produces five voltages on the secondary side. All these voltages must be lower than 25VDC because the capacitors are at 25VDC.
The first one supplies the HIC block (21).
The second is block regulators 7812(IC508B) and 7805(IC509B)
Third block 330uF/25V capacitor(CPS22)
Fourth block capacitor 330uF/25V(CPS28)
Fifth, dual power supplies 7809(IC506B) and 7805(IC505B)
Could someone in spare time measure voltages on components:
1. 47uF/25V(CPS24)
3. 330uF/25V(CPS22)
4. 330uF/25V(CPS28)
5. 470uF/25V(CPS5) and 1500uF/25V(CPS13)
Does any of you perhaps have an accurate wiring diagram for the PC0104H-1D board.
I would be extremely grateful for your help.
I have the identical problem as @Lumpy2 here: http://www.refrigeration-engineer.com/forums/showthread.php?19150-Daikin-Control-Unit-PCB-Repairs . I have a Daikin RZP100 from which I made a heat pump to heat my house - medium water.
Unfortunately, I recently got a U4 error (no communication) on my display.
The outdoor unit board (PC0104H-1D) near X100A has a burnt 51R/5W resistor - luckily the resistor value is readable.
I've already bought the resistor and now I'm waiting for MA3810, which I suspect is also damaged. I will also replace transistor C1093(IC102B) and optocoupler P521(PHC101B).
However, I have a question for my colleagues:
SMPS produces five voltages on the secondary side. All these voltages must be lower than 25VDC because the capacitors are at 25VDC.
The first one supplies the HIC block (21).
The second is block regulators 7812(IC508B) and 7805(IC509B)
Third block 330uF/25V capacitor(CPS22)
Fourth block capacitor 330uF/25V(CPS28)
Fifth, dual power supplies 7809(IC506B) and 7805(IC505B)
Could someone in spare time measure voltages on components:
1. 47uF/25V(CPS24)
3. 330uF/25V(CPS22)
4. 330uF/25V(CPS28)
5. 470uF/25V(CPS5) and 1500uF/25V(CPS13)
Does any of you perhaps have an accurate wiring diagram for the PC0104H-1D board.
I would be extremely grateful for your help.