"The Punch" EP 1. Rockford Fosgate old school amp repair and restoration.

[@Jay_The_Ukrainian]

I just got a 45HD yesterday haven’t tried it out yet hopefully she works 🤞🤞🤞

[@electronicengineer]

Your upcoming Rockford Fosgate Punch repair & restore series certainly look to be both an exciting and most definitely an educational trip down memory lane. Thanks!

[@Crazylogix007]

That's the plan!

[@eshskis1]

Love this, I have a large collection of punch amps, this will be helpful thank you !

[@paulsthormes251]

Great video Subscribed👍

[@432b86ed]

Two thumbs up!! Subscribed. You know your stuff, Sir.

[@Crazylogix007]

Awesome, thank you!

[@cerglabs3646]

Keep 'em coming brother!

[@phillipbainbridge9107]

In the middle of watching this my mail carrier delivered my 75HD. I definitely understand the heartache with the galvanic corrosion between the screws and the sink and the leaky 10uF 16V SMD caps. I've got hundreds of them on hand.

[@Crazylogix007]

Great amps, hopefully this series helps you decide if you can fix them or if you should send them out for service. My hope is that everyone can rock thier old amps again.

[@phillipbainbridge9107]

@@Crazylogix007 I was going to ask where you get your boards printed or however you source them. I have a 150HD and it's got a jacked up one that I may or may not be able to repair.

[@Crazylogix007]

@@phillipbainbridge9107 The boards will be available soon, my spare time has taken a massive hit, but I am trying to squeeze in as much as I can.

[@phillipbainbridge9107]

@@Crazylogix007 Oh right on. I've never had any pcb printed before, but I would have populated them somehow. This will be something the community needs.

[@ZombiemodzFPV]

Watching for about the 4th time in the last couple years. Was wondering if you could tell me where to get the stickers now. I cant find any of them for sale now like they were 2 years ago. Just bought a 150HD last week and possibly have a 45 or 45HD being gifted to me.

[@drozcompany4132]

All of the Gen 2 Punch 45s that use the TL494 have serial numbers starting with AF, also known as the all-FET design. Also for some reason, probably cost, the LED is actually part of the voltage divider for the op-amps, so it's imperative to make sure that LED is present before powering on the amp.

[@iwilliex]

Great video, what caps should I buy for the little board in the 45HD.

[@steve20042]

Do you repair Rockford amps? I have a punch 75hd. It worked the last time it was hooked up and is currently sitting in my closet. I was thinking about hooking it up, but I’d prefer it to be looked at to make sure there isn’t any unforeseen issues.

[@stuartroberts128]

I have a punch 45hd with the exact same issue with the sound. Are you still producing the boards to fix the scratchy sound. Many thanks

[@nostranger2u]

I have a Punch 45 that only powers the right channel when over 2/3rd's of full volume. What might this be and where to fix in WA?

[@Crazylogix007]

Not sure if Todd at Ellensburg amp repair is doing RF, try him first. If not G&S amp repair or Desert Audio Specialist in AZ.

[@rnewton383]

I have 2 75's and 2 45's amps, that we're stored in a bucket in my shop. the shop had a leak in the roof. The bucket got full of water and they sat in it for a while. Can you fix it? Some will power on scratchy output. Some the power light blinks on and off

[@Crazylogix007]

Desert Audio, G.S. Amp repair, Freemans Stereo, Old school car audio restorations, are just a few of the repair shops you can contact.

[@Formerlywarmer]

Just went and dug two out of my pile. 1979-80 - 82. One has the serial number scripted into the back with an engraver I think that’s the oldest one I still have the other one has a sticker The oldest one I had but no longer do was bare aluminum and had all the info written in masking tape by hand. It was given to me by a guy that I helped because he’d broke down on I-95 headed home from a big car show in Miami. I lived in Camden county GA woodbine last county in GA on the coast before Florida He said he was a rep for several audio companies and the RF was pretty much unknown and drew lil interest at the show but said it was amazing. He was right. . Wonder if sending them to RF for testing and or repair is wise? Anyone delt with them?

[@domenicrutigliano2511]

Can you confirm which wires are used for bridgeing this amp (45 not the HD)? Can it be bridged doing a mixed mono/stereo set up?

[@Crazylogix007]

The 45, 75, 150, 45HD, 75HD and 150HD can all be ran muxed mono/stereo. All of them are bridged using the orange(left pos) and brown(right neg) wires. Stereo is yellow and brown, right side. And orange and black left side.

[@bassboyful]

@@Crazylogix007 Thanks for the info as I have the same amp as you and will like to no, when you have it in mono mood which ( ch ) do you use in mono, ch-1 or ch-2.

[@juanmanuelcardenas5458]

Tengo 2 punch 45 pero no funcionan y quiero al menos que funcione uno, que tengo el punch 75 y el 150 y estos 2 si funcionan ,son excelentes amplificadores

[@mtbasshead]

What's a pair if 75ds worth that power up but no sound. If I dont want to repair them.

[@rogersingh3918]

I purchased a 1999-2003 RF punch 801s amp, I followed your recommendations on testing the mosfets, caps, etc. The guts is in preety good shape but the transformer no so much, smells burnt and looks as if it has been overworked beyond it's capabilities, seems that the transformer emits a lot of heat judging from the burn marks on the base plate. Powered up the amp and surprisingly it powers up so I hooked up one 8ohm speaker on each channel, a two channel amp BTW and the amp works but when you place your nose close to the air ports on the battery and ground side of the amp the burnt smell is more obvious. Need some advice, due to the condition of the transformer, will this affect the amp's output and the amp won't play at it's rated rms also will this contribute to additional heat on the amp. I have not placed a 4ohm or 2ohm load on the amp because I don't want to burn any components also any tips on what can be done to resolve any excessive heat generated by the amp, I have learnt so much from your videos and will really like one day to be able to repair my own amps, excellent videos, thank you Sir

[@Crazylogix007]

I have an 801s exactly like this and i too thought the transformer was toast. However it seems very common in these amps and Rockford put a coating over them that likes to discolor and stink a little. It is common for them to have made a make on the bottom plate too. Look for a upcoming short video on the 801s I have.

[@thomasmessinger5157]

I happen to have a couple Punch 30's, a punch 45HD, Punch 75HD & a Punch 150HD.

[@Crazylogix007]

Hope you are going to do a incredible old school build with them!

[@thomasmessinger5157]

@@Crazylogix007 yes!!! As soon as I get them fixed.

[@thomasmessinger5157]

In need of a PIM board for my Punch 75HD

[@petergunzzz1]

I have this same amp and looking for replacement labels as I am restoring it. Can you direct me to where I can buy them? Great vids and always looking forward to see what you post next. 👍🏽

[@Crazylogix007]

I have excellent reproductions for restoring these old amps, email me, my youtube user name at gmail.com

[@brendaleetv]

I have a punch 45HD, where did you get the front sticker, and would you recommend painting it? Uf so what kind of paint?

[@Crazylogix007]

Rust-Oleum makes a good textured black and VHT makes a good crinkle finish one too. I have reproduction labels for the Punch amps. Just e-mail me at my youtube name at gmail.

[@brendaleetv]

@@Crazylogix007 Awesome, Ill email you.

[@seanhower5130]

I powder coated mine white,looked great

[@juanmanuelcardenas5458]

Tu tienes la manera de conseguir refacciones para estos amplificadores

[@chadcurrent1645]

I have a punch 75HD and a Punch 150HD. Some reason my 75HD plays quite on one side and normal on the other. Works great bridged? Looking forward to seeing your videos.

[@Crazylogix007]

Carefully remove the cover and check the PIM card for leaked caps, probably corroded a little and has affected the one side.

[@phillipbainbridge9107]

Believe it or not: something as simple as a dirty gain pot can cause that. I've had about 2 of my last 10 repairs with the same problem and diagnosis.

[@chadcurrent1645]

@@Crazylogix007 i don't remember it looking like any caps leaked but I'll check it out again. I always open up and inspect amplifiers before I apply power to them if they are 20 years old or more. As you know, Ya never know lol

[@Jessenavarro313]

Hi I have A Rockford punch 100x2 that overheated to like 100 degrees in 5 seconds I was wondering how much would it cost for me to send it out to you and get repaired

[@Crazylogix007]

Not currently taking anything in, I am overwhelmed at the moment. Where about are you located and I should be able to point you to someone close that currently has less backlog.

[@Jessenavarro313]

Crazylogix007 Detroit Michigan and thank you

[@432b86ed]

Would you happen to have an old Fosgate The Punch PR250 or 2100 preamp unit? Thanks

[@Crazylogix007]

Not yet, I keep looking for old Rockford stuff that is not working that is in my price range.

[@432b86ed]

@@Crazylogix007 PR250 and PR2100 are pre-Rockford. They use the 5 pin din plugs for the in/out and slave power (17.5+/-) from the amp. But you probably knew that. :)

[@timothygray7650]

Brand new now.

[@kwguy2000]

I actually typed crazy and it autocorrected to Craig lol. Need the PIM board for an HD. Any insights welcome :)

[@Crazylogix007]

I have them for the 45hd, 75hd, and 150hd. Email me at my youtube user name at gmail.

[@gabriellara2100]

Hi, what size are the 4 fuses in the 2nd gen board?

[@Crazylogix007]

The recommended fuse size for the 4 internal fuses were 3 amp for the 45, 4 amp for the 75, and 5 amp for the 150.

[@lazie82]

Do use electrical spray to clean the amps?

[@Crazylogix007]

Deoxit on the switches and pots, 90 percent (or higher) isopropyl alcohol on the board. Sometime acetone for stubborn cleaning.

[@aowens7035]

I just subscribed to your channel great videos!!!! I just bought a punch 45HD off ebay and I just took it apart after watching your video and those caps on the board behind the rca plugs are bad the one closest to the top of the board is actually missing and has a small burn mark in the spot where it belongs, I would like to get it repaired any suggestions on where I can send it off to get repaired I'm in Houston Texas

[@Crazylogix007]

Desert Audio Specialist or G.S. Amp repair both stock my replacement boards and can fix your amp.

[@aowens7035]

@@Crazylogix007 thanks for the information I will definitely look those guys up

[@jeremytauer3868]

I did notice that your R14 R24 R11 and R12 Are different colors then mine on my 45HD.

[@cablecable5810]

Where do I get an amp repaired and a sub

[@Crazylogix007]

Do you mean the overall color or the value indicating stripes? The overall color does not matter, I have them in blue, green and tan. The value does matter.

[@cablecable5810]

I need an amp repaired and a15 in sub

[@Crazylogix007]

Where about are you located, I might be able to point you to a close repair shop.

[@juanm2659]

Is also the 2nd generation board a cheater amp ? Punch 45?

[@cablecable5810]

I’m in I’m in Cincinnati but I’m on my way back to Colorado or to Washington state soon but I could I could mail it I mean it’s kind of expensive but I really I don’t want to have to keep buying this shit

[@Crazylogix007]

There are lots of great Rockford repair guys close out there, several in Arizona.

[@kwguy2000]

Craig, any chance you have HB-PIM boards available? Or the same made w a non ceramic board

[@Crazylogix007]

I have the PIM boards, find me in the Rockford facebook groups.