Dead Fender Stage 185 Amp

[zenesh]

schematic

Hi i would like a copy of the schematic as well.

Please email me at zenesh@yahoo.com

[vintagekiki]

Fender 185 Series revF schematics

[bgcostello]

Thanks for the schematic.

[apelizzo]

Need to replace power transformer

Hi

Do you still need the schematics for the 185 Series? I have scanned copies if you would like me to send them to you.

Could you please send me the schematic. My amp has the primary of the transformer open circuit and I need to find a replacement. Probably I need to wind one but I need the voltages of the secondaries. Thanks

[apelizzo]

Need Stage 185 schematic

Hi

Do you still need the schematics for the 185 Series? I have scanned copies if you would like me to send them to you.

Sorry I forgot my email address

apelizzo@hotmail.com

Thanks

[Enzo]

Why not look two or three posts above in post #17, where the schematic is there to see?

Where are you? A Fender dealer can probably order the transformer.

[Lee_S]

New to this forum that identified the thermistor problem which I beleive is what's going on with my Stage 185.
Just ordered the thermistor and have the schematic/ckt brd layout
Before I start the repair, I would appreciate any help/tips here in accessing the chasis/ckt board to replace the thermistor.
My questions are:

Other than removing the control knobs and bolts on the front, there are 4 screws on the top and 1 each on the left and right.
Do I need to remove all of these for access to the chasis/ckt board?
On the rear side there's a cover/plate which has 5 small bolts on the bottom Do these need to be removed?
On the rear side, can the bolts for the jacks and gain offset control in the back be left in intact once the chasis/ckt board is accessible?

Thanks, Lee

[52 Bill]

Lee:
Welcome to the forum.
It would probably be better for you to start a new thread for your amp rather than picking up an old one.

To remove the chassis from your amp, start by unhooking the wires that attach the amp to the speaker. Then remove the two screws on the sides of the case and the four top screws. The chassis will drop down and out the back of the case. The chassis will probably get stuck on the self-adhesive foil shielding that has been applied to the inside of the wooden case, so just try and wiggle it out. Do not remove any of the control knobs or other screws until you have removed the chassis from the case.

[jasonguitar]

Could you please send me the schematic. My amp has the primary of the transformer open circuit and I need to find a replacement. Probably I need to wind one but I need the voltages of the secondaries. Thanks

APELIZZO, Were you ever able to get the transformer secondary voltages? I need to know them too. I am very confused as in the amp I am trying to repair, someone had labeled the secondaries and the their terminals on the pc board as 1, 2 & 3 but had the red/white wire which the schematic indicates as cp11 at cp12. Thinking this may have been my problem with too much voltage on the front end of the 2 270 ohm dropping resistors I put the red/white wire back where the schematic indicated and right away the mains fuse and thermistor blew. I replaced them and now when I fire up the amp there is a super loud hum and the thermistor is heating up so fast its sure to blow a fuse again. When I check the secondary voltages I get 48vac(white) 17 vac(red/white) 14.5vac(white) Could it be that the red/white wire was wrong from the factory? Help!