#1
|
|||
|
|||
Looking for a 1968 Mopar car radio schematic
Hi all.
I am looking for a 1968 Plymouth Bendix Mark 1 (284 890) ser. 9FBBA AM/FM car radio schematic. Basicly the AM is not working, FM works but not 100% & it also has a split plastic tuning gear. Any Help would be much appreciated. Last edited by Stereo2; 12-21-2010 at 11:51 PM. Reason: Solved Problem |
#2
|
||||
|
||||
I bet drh4683 can help with this.
|
#3
|
|||
|
|||
Maybe these photo's may help.
I did unsoldered one pin on one of the resistor/capacitor networks which it brought back the FM to a 100% working condition. You may see the unsoldered pin in PCT0010a. Last edited by Stereo2; 12-18-2010 at 07:04 PM. |
#4
|
|||
|
|||
Some more photo's
|
#5
|
|||
|
|||
Check the Howard W. Sams website. Sams has an auto radio series of schematics. Of course, Sams does charge for these.
|
Audiokarma |
#6
|
|||
|
|||
Thanks Peverett. E-mail sent.
I would appreciate any other Tech tips. I did reversed two transistors (dia. A ) with no change to AM or FM. I was hoping if it was a bad oscilator transistor it would show some kind of change.( I.F. would be poor but AM oscilator would tune in?) There is a diode ( dia. B ) that I pulled & it measures like a diode, but I can not identify. (Zener?) Which lead me to unsoldering Cap/resistor network pin, in turn makes the FM work perfectly. |
#7
|
|||
|
|||
On the Howard W. Sams website, you can enter the radio model number and see if they have the schematic.
|
#8
|
|||
|
|||
Solved problem
I started removing I.F. coils & inspecting the winding in the coils. On the third I.F. coil removed, I found one of the windings corroded, but fixable!
Fixed without any schematics. AM & FM are working! Now I'll try to fix the broken plastic gear. Any suggestions? |
#9
|
||||
|
||||
If the gear is otherwise whole, you could superglue it with the proper one for plastics. I used it on a plastic gear in a tape player successfully. If there's room on the side of the gear, sand lightly and superglue thin aluminum "band aids" across the crack.
__________________
Reece Perfection is hard to reach with a screwdriver. |
|
|