New HT5-R - No Sound!

Discussion - HT-5 amplifiers.
proff
Posts: 2
Joined: Mon Sep 29, 2014 8:09 am

Tue Sep 30, 2014 9:01 am

You must open the amp and compare pcb's... If they are same then is very possible to have the same problem and the solution could be same :)

doug.welch
Posts: 2
Joined: Sun Oct 26, 2014 3:28 pm
Location: Canada

Sun Nov 23, 2014 4:48 pm

Does anyone know of an authorized repair shop in southern Ontario? I took mine to an independent amp guy who replaced r39 with a 2 watt resistor and it burned up almost immediately. I really like this amp and would like to get our working again. I have contacted korg USA twice asking for this and so far no response.

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thephantum
Posts: 1160
Joined: Wed Jan 29, 2014 7:42 pm
Location: Virginia, United States

Sun Nov 23, 2014 6:48 pm


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Sonofarich
Posts: 583
Joined: Thu Feb 24, 2011 1:00 am

Mon Nov 24, 2014 12:32 am

Kaos Music Centre (16.8)
3052 Bloor Street, Etobicoke, ON M8X 1C7
416-233-2232

Mojo Music (41.3)
430 Speers Rd, Oakville, ON L6K 2G2
905-842-2665

The Arts Music Store (42.4)
274 Eagle Street, Newmarket, ON L3Y 1K1
905 898 7164

Get Loud Music (48.1)
921 Main Street East, Milton, ON L9T 3Z
905 203 3612

Mikes Music (62.6)
9 Pine Street North, Thorold, ON L2V 3Z9
905-227-7941

Sherwood Music Inc. (97.7)
124 Ottawa St South, Kitchener, ON N2G 3S9
519-745-0021

Bud's Music Center (104.7)
296 Alymer St. North, Peterborough, ON K9S 3K
705 742-5332

Digs Music (114.0)
55 Snyders Road West, Baden, ON N3A 2M2
519-214-2600

Kerry's Music and Computers (145.2)
150 Skyes Street, North Meadford, Ontario N4L 1P3
519-538-5168

Harmony Music Plus Ltd (162.8)
76 Harriet Street, Belleville, ON K8P 1V7
613-968-9975

doug.welch
Posts: 2
Joined: Sun Oct 26, 2014 3:28 pm
Location: Canada

Sun Dec 07, 2014 12:31 am

I finally tracked down an authorized service center after calling one of the sellers posted by @sonofarich and had it repaired for a pretty reasonable price. I am still baffled by why blackstar makes the information on how to contact their service centers so hard to obtain. Are they trying to force us through their retail outlets, so they get a cut off every repair?

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Sonofarich
Posts: 583
Joined: Thu Feb 24, 2011 1:00 am

Mon Dec 08, 2014 4:15 am

Not sure what you found hard about finding an authorized repair center...the link is on this/their official website. A lot (if not most) manufacturers utilize the same method for repairs and/or warranty issues. They certify local repair shops so that they have a network of local facilities to offer to their customers. They don't get a cut of the action, if anything, Blackstar has to pay the local repair shop for fixing your amp. They don't work for Blackstar, they are independent. Blackstar has negotiated beforehand with the shop so that they certify that they can make the repair and don't charge unreasonable amounts for unnecessary repairs. Pretty standard. They are officially based in the UK, so that would make it expensive and unreasonable to expect them to have everything shipped worldwide back to the UK...wouldn't you agree? Would take a long time too.

Also...if everyone is expecting them to troll every thread on this forum to find every issue they need to fix, that would be asking alot too. I'd like it to be that way, but I don't think it's gonna happen. However, what is not asking alot is for Blackstar to respond in a timely manner to inquiries made via official pathways, like those to a toll free number or emails to enquiries@blackstar.com. Those are unforgivable in my estimation.

Otherwise, we all might need to be a little more patient in this 'immediate satisfaction' world we live in.

/rant off.

Note: I'm not affiliated with Blackstar...just trying to bring some levity to this situation.

Tridyed
Posts: 1
Joined: Sat Jul 04, 2015 2:08 pm

Sat Jul 04, 2015 2:14 pm

I have found three HT5R combos that had R30 blown. I installed a 15W resistor in place of the 7 Watt it came with, crank them to full on and no issues. I think this dropping resistor may be a tad to weak for these amps.

Just a thought and it has fixed three of them now.

BowerR64
Posts: 22
Joined: Sun Jul 19, 2015 5:08 am

Sun Jul 19, 2015 5:59 am

I have an HT-5 and mine does not look like everyone else this one appears to be a newer designed board.

It has no sound but it fires up.

When its on i see a glow from the 12AX7 but nothing from the 12BH7 output tube.

The output tube gets hot but i dont see it glowing like a normal working tube usually does.

Ive ordered a new 12BH7 tube with the hopes this is all that is wrong.

Even my T2 and T3 transistors appear to be fine.

I got mine used off the local craigslist with the hopes it had the common issues that would be an easy fix.

BowerR64
Posts: 22
Joined: Sun Jul 19, 2015 5:08 am

Sun Jul 19, 2015 12:26 pm

How many versions are there of this amp?

I dont see any shorts does anyone have any images?

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thephantum
Posts: 1160
Joined: Wed Jan 29, 2014 7:42 pm
Location: Virginia, United States

Sun Jul 19, 2015 4:33 pm

If this was your problem, there would be visible burnt marks on the PCB in the area of specific resistors. So it sounds like this is not your issue. You can confirm this by reading the serial number on the back of the amp which will give you the manufacture date. If the date is not very late 2011 or early 2012, this is not your issue.

The serial number should look something like (xx) xxxx xxxxxxxx. The middle number is the date code in yymm. For example, mine is (21)1303 xxxxxxxxx, where 1303 is March 2013.

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