Search found 37 matches
- 25 Jul 2020, 04:20
- Forum: Pedal Debugging & Troubleshooting Support
- Topic: Boss TW-1 problems
- Replies: 0
- Views: 1010
Boss TW-1 problems
Good! I am building a Boss TW-1 that I had bought disassembled, I have put the missing parts, but when activating the effect, it does not make the sound of the car wah. If I move the Peak control it sounds like it goes from a high-pitched sound to a low-pitched sound, like I'm moving the knob on a w...
- 09 Jun 2020, 02:51
- Forum: Pedal Debugging & Troubleshooting Support
- Topic: Boss DD-3 (A) problem
- Replies: 0
- Views: 962
Boss DD-3 (A) problem
Goodnight! I have a Boss DD-3 (A) that has a horrible beep. When you turn on the pedal, you can hear it and the guitar signal will not pass. I have verified voltages and with an audio probe to see where the signal passes, but I cannot find the problem. In case the same thing happened to someone and ...
- 04 Jun 2020, 20:37
- Forum: Pedal Debugging & Troubleshooting Support
- Topic: Xotic BBpreamo bass no Gain
- Replies: 18
- Views: 3082
- 04 Jun 2020, 05:10
- Forum: Pedal Debugging & Troubleshooting Support
- Topic: Xotic BBpreamo bass no Gain
- Replies: 18
- Views: 3082
- 04 Jun 2020, 05:02
- Forum: Pedal Debugging & Troubleshooting Support
- Topic: Xotic BBpreamo bass no Gain
- Replies: 18
- Views: 3082
- 04 Jun 2020, 04:46
- Forum: Pedal Debugging & Troubleshooting Support
- Topic: Xotic BBpreamo bass no Gain
- Replies: 18
- Views: 3082
Re: Xotic BBpreamo bass no Gain
Perhaps the potentiometer itself is bad. Sometimes one or more pins loose the mechanical connection with the internal carbon trace, creating an intermittent contact. This could explain the fluctuating voltage. Edit You should have noticed that also the volume of the pedal fluctuates though... Yes, ...
- 04 Jun 2020, 02:55
- Forum: Pedal Debugging & Troubleshooting Support
- Topic: Xotic BBpreamo bass no Gain
- Replies: 18
- Views: 3082
Re: Xotic BBpreamo bass no Gain
The resistance of C14 (10uF), depending on how you measure, positive-negative, or negative-positive, ranges from 500K to 6M. 500k is kinda low, I'd replace it. Please check the rest I have changed the 10uF capacitor, and checked the other components (the ones by the source, they are all ok) but the...
- 03 Jun 2020, 15:25
- Forum: Pedal Debugging & Troubleshooting Support
- Topic: Xotic BBpreamo bass no Gain
- Replies: 18
- Views: 3082
Re: Xotic BBpreamo bass no Gain
I have noticed that in the Volume potentiometer the voltage fluctuates between 4.5V and drops to 2V, without moving the potentiometer. Volume pot is tied to bias voltage and AC coupled with nearest stages. Fluctuation means that bias is not stable or/and coupling caps are shorted or defunkt. Check ...
- 03 Jun 2020, 14:24
- Forum: Pedal Debugging & Troubleshooting Support
- Topic: Xotic BBpreamo bass no Gain
- Replies: 18
- Views: 3082
- 02 Jun 2020, 22:05
- Forum: Pedal Debugging & Troubleshooting Support
- Topic: Xotic BBpreamo bass no Gain
- Replies: 18
- Views: 3082
Re: Xotic BBpreamo bass no Gain
Thanks for answering, these are the voltages:
Q1
E 3.08
C 9.10
B 3.56
Q2
E 3.09
C 9.10
B 3.67
IC1
1 4.48
2 4.50
3 4.48
4 0
5 4.50
6 4.69
7 4.48
8 9.10
IC2
1 4.51
2 4.55
3 4.51
4 0
5 4.50
6 4.52
7 4.51- 4.52
8 9.09
Q1
E 3.08
C 9.10
B 3.56
Q2
E 3.09
C 9.10
B 3.67
IC1
1 4.48
2 4.50
3 4.48
4 0
5 4.50
6 4.69
7 4.48
8 9.10
IC2
1 4.51
2 4.55
3 4.51
4 0
5 4.50
6 4.52
7 4.51- 4.52
8 9.09
- 02 Jun 2020, 21:44
- Forum: Pedal Debugging & Troubleshooting Support
- Topic: Xotic BBpreamo bass no Gain
- Replies: 18
- Views: 3082
Xotic BBpreamo bass no Gain
Good afternoon. I have a xotic bb preamp bass that when activated does not generate any distortion. At the maximum travel of the potentiometer it is as if it were in the 1/4 of the same I have changed the two ICs for testing, also change the 1N4148 diodes, but still the problem persists. I have noti...
- 09 Oct 2019, 11:01
- Forum: Pedal Debugging & Troubleshooting Support
- Topic: EQD Palisades with problem
- Replies: 3
- Views: 771
Re: EQD Palisades with problem
hello, try and follow the signal with an audio probe, and see where it stops. here you can find a schematic https://www.freestompboxes.org/viewtopic.php?f=7&t=28651&hilit=eqd+palisades#p266720 I have done the audio probe, I was testing in the signal input and output sections. For example: -...
- 08 Oct 2019, 11:56
- Forum: Pedal Debugging & Troubleshooting Support
- Topic: EQD Palisades with problem
- Replies: 3
- Views: 771
EQD Palisades with problem
Good Morning I have a Palisades with problem. The pedal was working without problem and then the overdrive and distortion channel stopped working, the Boost channel works without problem. I changed the IC in case the problem was there, but the same still doesn't work. When activating the effect, wit...
- 01 Nov 2013, 05:00
- Forum: Boutique Stompboxes dissected...
- Topic: HAO - Rust Driver [traced]
- Replies: 134
- Views: 50381
Re: HAO - Rust Driver [traced]
Boys, I have a small query: - I did two rust driver, the first has a switch 3 positions where is C3 (1nF, 680pF and 4, 7nF), with this Setup sounds very good and not put almost sounds... - The second driver rust has I was trying with 1nF, 2.2nF, 3.3nF, 4.7nF, 5.6nF, 6.8nF and 8.2nF, from the 1nF unt...
- 13 Oct 2013, 06:28
- Forum: Boutique Stompboxes dissected...
- Topic: Lovepedal - Purple Plexi 800 [goop-alarm] [traced]
- Replies: 218
- Views: 103747
Re: Lovepedal - Purple Plexi 800 [goop-alarm] [traced]
Yepsoggybag wrote:While reading this thread I noticed that people were saying the gain control only worked for the last 10% of the travel. Has anyone tried a reverse audio taper C1K pot?
- 17 Sep 2013, 03:05
- Forum: Boutique Stompboxes dissected...
- Topic: Suhr - Riot [traced]
- Replies: 407
- Views: 201954
Re: Suhr - Riot [traced]
Boys, i have the v1 of uproar Madbean, but lacks more brightness, as you modify C8, C9 and C10, but the same remains very opaque the effect
- 22 Aug 2013, 06:29
- Forum: DIY Projects
- Topic: "Little Angel" - Super Simple PT2399 Mini Chorus [documentation]
- Replies: 357
- Views: 62655
- 19 Aug 2013, 06:50
- Forum: DIY Projects
- Topic: "Little Angel" - Super Simple PT2399 Mini Chorus [documentation]
- Replies: 357
- Views: 62655
Re: "Little Angel" - Super Simple PT2399 Mini Chorus [documentation]
Boys, i have a small problem with this pedal, i assembled and the effect is very low listening,that is to say, listening is very in the background the effect of the chorus, is not strong, it is not in unity, review the components and are all ok, use the layout version of the birthday, will be that o...
- 03 Aug 2013, 19:09
- Forum: Vintage Stompbox Corner ( ... - 1975)
- Topic: Sola Sound - Tonebender Mark II Professional [schematic]
- Replies: 693
- Views: 351133
Re: Sola Sound - Tonebender Mark II Professional [schematic]
There is a pcb that is PNP with negative ground?
- 02 Jul 2013, 06:15
- Forum: Boutique Stompboxes dissected...
- Topic: Wampler - SLOstortion [traced]
- Replies: 180
- Views: 65760
Re: Wampler SLOstortion [traced]
not sure if it matters, but did you use a C50K pot for the Mids? Thats what I used - as that is what is stated on the schematic, but after looking through the thread again, the Wampler SLO uses a C25K pot for the Mids.. According to this image, the pot is of C50K, there is something weird in its pa...