Hi all,
I ordered this sets power supply since it was blown, installed the new second hand PSU, set started up with a no signal message but now no keypad button does anything and the remote also has no effect.
I have checked the following,
1. Remote transmits using a remote tester but cant prove that its transmitting correct data. Scoped on IR on main and have got pulses.
2. When pressing the keypad you see a voltage change on the relevant K0 or K1 input (check photos) going from 5V to 3.8V to 2,3V etc
3. I warmed up the board to help any electrolytics but no change.
4. 5Vs on the keypad connector on the main has got 5.2V
5. I felt the temperature on the TSUMV59XES-Z1 and within 5 minutes was a roasty 58 degrees celsius or 136.6 Fahrenheit (Dont know if its normal). Is it not that IC that is generating the "No signal" banner? So then it's partly working.
All that i am left in doing is measuring the IR, K0, K1 inputs to ground to see if there is any low resistance and replace all caps on the main
Any help any suggestions would be sooooo appreciated.
I ordered this sets power supply since it was blown, installed the new second hand PSU, set started up with a no signal message but now no keypad button does anything and the remote also has no effect.
I have checked the following,
1. Remote transmits using a remote tester but cant prove that its transmitting correct data. Scoped on IR on main and have got pulses.
2. When pressing the keypad you see a voltage change on the relevant K0 or K1 input (check photos) going from 5V to 3.8V to 2,3V etc
3. I warmed up the board to help any electrolytics but no change.
4. 5Vs on the keypad connector on the main has got 5.2V
5. I felt the temperature on the TSUMV59XES-Z1 and within 5 minutes was a roasty 58 degrees celsius or 136.6 Fahrenheit (Dont know if its normal). Is it not that IC that is generating the "No signal" banner? So then it's partly working.
All that i am left in doing is measuring the IR, K0, K1 inputs to ground to see if there is any low resistance and replace all caps on the main
Any help any suggestions would be sooooo appreciated.
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