Hi.
I have this HK AVR 1710 receiver in stand by amber light not powering up. Very dirty and some corrosion. Washed it with soap, toothbrush, and rinsed with Isopropyl. Dried in reflow oven at 105 C for 30 minutes.
At this point, power button didnt work, but reset could be done with surr mode button, and it powered up nicely on its own. Checked all voltages (good) and connected phone by bluetooth, played on output channels just fine. however, wouldnt power down.
Front push buttons connected to pin ´key2´on MCU had no signal, so i repaired a couple gaps in the traces below the overlay. Redid some corroded solder on mcu and some other chips and components. Now all buttons have signals but still no power up, and now it wont reset with surr mode button.
Im stuck here.
If anyone could please point me in the right direction, Id really appreciate it.
Thanks.
Service manual download: hxxps://elektrotanya.com/harman_kardon_avr171_avr230_avr1710_avr1610_avr161_sm.pdf/download.html
I have this HK AVR 1710 receiver in stand by amber light not powering up. Very dirty and some corrosion. Washed it with soap, toothbrush, and rinsed with Isopropyl. Dried in reflow oven at 105 C for 30 minutes.
At this point, power button didnt work, but reset could be done with surr mode button, and it powered up nicely on its own. Checked all voltages (good) and connected phone by bluetooth, played on output channels just fine. however, wouldnt power down.
Front push buttons connected to pin ´key2´on MCU had no signal, so i repaired a couple gaps in the traces below the overlay. Redid some corroded solder on mcu and some other chips and components. Now all buttons have signals but still no power up, and now it wont reset with surr mode button.
Im stuck here.
If anyone could please point me in the right direction, Id really appreciate it.
Thanks.
Service manual download: hxxps://elektrotanya.com/harman_kardon_avr171_avr230_avr1710_avr1610_avr161_sm.pdf/download.html