BOSS HF-2 Power/LED problem. Any help appreciated!
- fuzzbuzzfuzz
- Posts: 493
- Joined: Thu Aug 23, 2018 11:25 am
BOSS HF-2 Power/LED problem. Any help appreciated!
I was just about to ship my spare HF-2 to its new owner, when upon checking I noticed it refuses to fire up and work with a power supply.
- NO LED lit with ACA supply (2 tried) - bypass sound only, NO EFFECT sound.
- NO LED lit with PSA or "Normal" 9v power supply, NO EFFECT sound.
- LED lit with battery, BYPASS + EFFECT sound out.
- LED lit daisy chain to BOSS TU-2,, BYPASS + EFFECT sound out.
As a precaution I replaced the power-in Jack with a new one, but the same as above.
Quite a perplexing case!
Any help and wisdom appreciated, thanks!
- NO LED lit with ACA supply (2 tried) - bypass sound only, NO EFFECT sound.
- NO LED lit with PSA or "Normal" 9v power supply, NO EFFECT sound.
- LED lit with battery, BYPASS + EFFECT sound out.
- LED lit daisy chain to BOSS TU-2,, BYPASS + EFFECT sound out.
As a precaution I replaced the power-in Jack with a new one, but the same as above.
Quite a perplexing case!
Any help and wisdom appreciated, thanks!
- fuzzbuzzfuzz
- Posts: 493
- Joined: Thu Aug 23, 2018 11:25 am
Re: BOSS HF-2 Power/LED problem. Any help appreciated!
(Note: I see no obvious differences in wiring or modifications compared to my current HF-2 (which works with the adaptors mentioned above)fuzzbuzzfuzz wrote: ↑Tue Apr 12, 2022 11:09 pmI was just about to ship my spare HF-2 to its new owner, when upon checking I noticed it refuses to fire up and work with a power supply.
- NO LED lit with ACA supply (2 tried) - bypass sound only, NO EFFECT sound.
- NO LED lit with PSA or "Normal" 9v power supply, NO EFFECT sound.
- LED lit with battery, BYPASS + EFFECT sound out.
- LED lit daisy chain to BOSS TU-2,, BYPASS + EFFECT sound out.
As a precaution I replaced the power-in Jack with a new one, but the same as above.
Quite a perplexing case!
Any help and wisdom appreciated, thanks!
Last edited by fuzzbuzzfuzz on Tue Apr 12, 2022 11:11 pm, edited 1 time in total.
- fuzzbuzzfuzz
- Posts: 493
- Joined: Thu Aug 23, 2018 11:25 am
Re: BOSS HF-2 Power/LED problem. Any help appreciated!
fuzzbuzzfuzz wrote: ↑Tue Apr 12, 2022 11:10 pm(Note: I see no obvious differences in wiring or modifications compared to my current HF-2 (which works with the adaptors mentioned above)fuzzbuzzfuzz wrote: ↑Tue Apr 12, 2022 11:09 pmI was just about to ship my spare HF-2 to its new owner, when upon checking I noticed it refuses to fire up and work with a power supply.
- NO LED lit with ACA supply (2 tried) - bypass sound only, NO EFFECT sound, bypass sound always when toggled on/off.
- NO LED lit with PSA or "Normal" 9v power supply, NO EFFECT sound. Bypass sound always when toggled on/off.
- LED lit with battery, BYPASS + EFFECT sound out.
- LED lit daisy chain to BOSS TU-2,, BYPASS + EFFECT sound out.
As a precaution I replaced the power-in Jack with a new one, but the same as above.
Quite a perplexing case!
Any help and wisdom appreciated, thanks!
- laurie
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Re: BOSS HF-2 Power/LED problem. Any help appreciated!
Wierd. Seems like the flip-flop that switches the FETs has malfunctioned.
- fuzzbuzzfuzz
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- Pepe
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Re: BOSS HF-2 Power/LED problem. Any help appreciated!
Since power with a battery and the PSA-daisy-chain method works, might there be a problem with the few components of the ACA input?
- fuzzbuzzfuzz
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- laurie
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Re: BOSS HF-2 Power/LED problem. Any help appreciated!
I want to make sure I understand the description of the problem:
- NO LED lit with ACA supply (2 tried) - bypass sound only, NO EFFECT sound.
Bypass works fine, but pedal does not switch to effected mode when treadle pressed?
- NO LED lit with PSA or "Normal" 9v power supply, NO EFFECT sound.
Bypass works fine, but pedal does not switch to effected mode when treadle pressed?
- LED lit with battery, BYPASS + EFFECT sound out.
Bypass works fine and effect work fine. Pedal switches to effected mode and back normally when treadle pressed?
- LED lit daisy chain to BOSS TU-2,, BYPASS + EFFECT sound out.
Bypass works fine and effect work fine. Pedal switches to effected mode and back normally when treadle pressed?
- NO LED lit with ACA supply (2 tried) - bypass sound only, NO EFFECT sound.
Bypass works fine, but pedal does not switch to effected mode when treadle pressed?
- NO LED lit with PSA or "Normal" 9v power supply, NO EFFECT sound.
Bypass works fine, but pedal does not switch to effected mode when treadle pressed?
- LED lit with battery, BYPASS + EFFECT sound out.
Bypass works fine and effect work fine. Pedal switches to effected mode and back normally when treadle pressed?
- LED lit daisy chain to BOSS TU-2,, BYPASS + EFFECT sound out.
Bypass works fine and effect work fine. Pedal switches to effected mode and back normally when treadle pressed?
- laurie
- Posts: 1643
- Joined: Fri Aug 17, 2018 2:07 am
- Location: Canada
- SBZ: Multi Platinum
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Re: BOSS HF-2 Power/LED problem. Any help appreciated!
Did this get sorted?