Fender Rhodes

[gbono]

I'm trying to help out a stuggling musican (aren't they all ) Doin this via cell phone images and text messages

It's a suitcase Rhodes with an amp for the stand - amp has a model # FR7710 and the keyboard is 017250-tbj

Need to know the pin out/color codes for the cable that connects the amp/keyboard. He claims there are 5 wires. Any help is appreciated. I found this on youtube but he claims there are 5 wires not 4 (I hate cell phone photos).

YouTube - Fender Rhodes Suitcase Piano Pre Amp Repair Pt.1

[Jazz P Bass]

Sorry, I do not know a Rhodes from a Scholar.
Here is a site dedicated to the Fender Rhodes.
Link:Service Manual

[Rhodesplyr]

The Suitcase Rhodes with the five-pin connector between the base and the keyboard is the 100W model, but you often find it discussed as the "5-pin" version. It uses ICs in the preamp and silicon output transistors; the earlier 80W version has a 4-pin connector, a discrete transistor preamp, and germanium outputs.

The 5-pin/100W model has multi-pin connectors on the amp module circuit boards inside the base, and these are notorious for developing cracked solder joints. If the problem is the signal cutting in and out, resolder those first. While you've got the base open, pop off the front speaker baffle board and make sure the nuts holding the speakers to the baffle haven't worked loose.

Why 5 pins? The ICs use a +/- 15V supply. The discrete transistor version uses a +25V supply.

[gbono]

Thanks Rhodesplyr,

I have the 100w schematic - is there a BOM for the board? I'm assuming that the IC's are standard issue dual Op amps (4558, TL072 etc)?

The connector has been reassembled but there is no signal going to the power amp from the preamp - the PA works fine just no signal out of the preamp. he mentioned that the +15V pin is measuring low - +2V??

Thanks