DOD - FX65B gut picture and voltages
How would I check those using an oscilloscope? Would those measurements look like two lines on the display? Or would I use a multimeter with Hz? My repair skills are pretty simple. I try to stick to analog circuits. Mostly OD's, distortion, and fuzz. I've been attempting to learn how BBD circuits work, but I have a lot to learn as far as how and why things work.
All I had to do was replace the switch and one pot to get this working again.
All I had to do was replace the switch and one pot to get this working again.
Will do! Thanks for getting back to me. I'm dipping my foot into this more complicated type of effect. Lots to learn!
Do I put the leads on pin 6 and pin 2? Doing that with speed down and width up, it bounces between 62.5 kHz and 71 kHz. Does this seem right? With the speed maxed out I get more of a stable reading of 67 kHz. Any advice would be appreciated.
Fender3D wrote:DMM with Hz is fine,
just set speed at minimum and depth at max for a better reading.
Is there something I can read to help me understand this better?
I just got the FX65 fixed. Would anyone be interested in the same picture and voltage information as I did on the FX65B?
Can't connect to the link provided
Fender3D wrote:Mark Hammer @ https://archive.ampage.org/
read about chorus, flanger and analog echo here or @ DIYstompboxes
- Fender3D
- Cap Cooler
It works for me....
it's an old site try https://hammer.ampage.org/ https://hammer.ampage.org/
BTW if you google Mark Hammer you'll find lots of interesting articles
it's an old site try https://hammer.ampage.org/ https://hammer.ampage.org/
BTW if you google Mark Hammer you'll find lots of interesting articles
I got it to work with google chrome. Edge didn't like it for some reason. Thanks!
- andregarcia57
- Cap Cooler
Information
- Posts: 1
- Joined: 15 Sep 2021, 00:21
I'm repairing one, my first chorus repair, it makes a throbbing sound and the chorus effect is very VERY subtle, was using your voltages to compare, all seems fine except for the 14 leg chip, leg 5 reads 4.5 and couldn't read leg 3 because it keep switching the effect on/off.
Also noted something weird with pots, all are W100k pots, but have peculiar readings
Reading form 1 and 3 legs
P 1: ccw 89.6k to 0 cw
P2: ccw 0 to 84 cw
P3: stays at 31.8 ccw through cw
Reading form 1 and 2 legs
P 1: stays at 0 ccw through cw
P2: ccw 0 to 84 cw
P3: ccw 0 to 36 to 31.8 cw
Reading form 2 and 3 legs
P 1: ccw 89.6k to 0 cw
P2: stays at 0 ccw through cw
P3: ccw 31.8 to 36 to 0 cw
don't know how a W taper must read, but I'm thinking in buying ones from tayda
Can someone help me out?
thanks!
Also noted something weird with pots, all are W100k pots, but have peculiar readings
Reading form 1 and 3 legs
P 1: ccw 89.6k to 0 cw
P2: ccw 0 to 84 cw
P3: stays at 31.8 ccw through cw
Reading form 1 and 2 legs
P 1: stays at 0 ccw through cw
P2: ccw 0 to 84 cw
P3: ccw 0 to 36 to 31.8 cw
Reading form 2 and 3 legs
P 1: ccw 89.6k to 0 cw
P2: stays at 0 ccw through cw
P3: ccw 31.8 to 36 to 0 cw
don't know how a W taper must read, but I'm thinking in buying ones from tayda
Can someone help me out?
thanks!