First I want to thank the community for all your help and input on this restoration.
Just to recap this unit was purchased by may dad in the late 70's. According to the serial number it was built in Feb 1977. My dad passed away 22 years ago the receiver then sat in their home until my mom's...
I was able to get the unit up and running. I removed the "new" F2624 replaced with the old F2624. Biased right on the numbers. Unit has been playing MP3s via aux for 48 hours straight - no issues.
Found this statement: Since bad filter caps don't do so well on filtering, DC spikes can drive the protection circuit crazy and make it act up arbitrarily
First a little background on the work that has been done on the unit:
All EC's recapped using the list post on here
Dolby board removed
all rivets were vacuum de-soldered, wired and re-soldered
a few traces were repaired
Rotary switch was removed and cleaned
Ribbon cable was replaces with new...
It has taken a long time to get this far. I want to thank all those who have helped along the way. Not done yet but progress. Here what was done so far:
System was completely hand cleaned and wiped inside and out. This unit has been in the family since the late 70's
All electrolytic capacitors...
I am trying to determine the placement of a black wire that runs from the 2617 broad to the 2544 broad. I believe it attaches to ground on the back side of 2544?
Thanks
I switched to my new 2624 broad.The system is out of protection mode and on the DBT. I took the following readings:
The +50V can be checked at either of the F04 and F05 fuseholders. 43vdc
The -50V can be checked at terminal 17 or 21/22. -43vdc
The +53V can be checked at the junction of R04 and...
The system is in protection mode and on the DBT. I took the following readings:
The +50V can be checked at either of the F04 and F05 fuseholders. 32.5vdc
The -50V can be checked at terminal 17 or 21/22. -32.5vdc
The +53V can be checked at the junction of R04 and C07. 31.5 vdc
The -55v can be...