Skip to main content

Repairing a Crate TX15 Taxi amplifier battery

A friend gave me a Crate battery guitar amp that he used for busking. It is a nice 15 watt amp with an internal battery. Sadly it died, and its custom power adapter was misplaced. After several years the battery will fail, and it requires a functioning battery to work at all. Happily, new batteries are inexpensive, readily available, and easy to install.

Photo of Crate TX15

Obtaining a replacement battery for the TX15

The original battery was a 4+ pound, sealed lead battery. Any replacement battery should closely follow the specs of the original. I bought this MightyMax Battery on Amazon, which is a perfect replacement.

There are many batteries that conform to the needs of the TX15, and they can be found at local hardware stores as they are commonly used in lots of equipment. It pays to look locally if you need something faster than Amazon. 

The battery specs are as follows:

12 Volt, 7.2 Ah lead battery (mine was marked 1272).

    • Length: 5.94" (151 mm) 
    • Width: 2.56" (65 mm)
    • Height: 3.94" (100 mm)
    • 4 Lbs, 14.6 Oz
    • F1 terminals (which are a little smaller than F2 terminals)

Photo of the 1272 battery
My TX15's original (dead) battery.

Replacing the TX15's battery

My TX15 is made out of a vinyl-covered wood. To get at the battery:

  1. Unplug the unit
  2. Remove the six screws holding on the front grill (Note: this is a great time to clean up any crud that accumulated under the grill) 
  3. Remove the four screws holding the 8 inch woofer
  4. Remove the woofer. Note it has wires attached.
  5. Remove the speaker wires. Note orientation of wires (on mine, Blue+, White-)
  6. Remove the two screws that hold down the steel battery bracket.
  7. Remove the battery wires and withdraw the battery. Dispose of properly, It cannot go in the trash. Some places will give you a credit it you bring it to them.
  8. Install new battery, reversing the above procedure.
  9. Charge for 24 hours

Replacing the TX15 Power Adapter

Maybe you lost your power adapter or need a new one. The original one for my Crate is a 15 volts DC, 1.25 Amp unit. The center pin is positive.  Since the original adapter was misplaced, I bought this replacement power supply, which supports 15 volts DC and has the correct polarity.

Crate TX15 Power Adapter Label
Label of an original TX15 Power Adapter

 Testing

After charging up the battery for 24.. 28... 48 hours, I got... nothing. This unit will not work if the battery has completely failed, even if plugged in. Therefore I replaced the battery, as noted above, and I'm back in business.
Labels:

Popular posts from this blog

Fixing a SodaStream Jet, part 1: Disassembly Guide

I've had my SodaStream Jet for years, and once in a while something has gone wrong. Disassembly is the first step to repair.  Start with this article to see how to disassemble the SodaStream, and then once you have that down, scroll through my other articles to see how I repaired specfic SodaStream problems. SodaStream Jet Disassembly Guide Tools Required Flat head screwdriver Phillips head screwdriver 1. Remove the Carbonator.  Duh. 2. Remove the black panel lever The front big black tilt lever needs to be removed first. Removing this panel is tricky, but it isn't impossible. Looking up at the bottom of the black panel, there are two tabs, one on the left and one on the right. These tabs fully secure the panel in place. The trick is to use a flat-head screwdriver under the plastic to gently lever the tabs out of the way.  Note in the pictures how I approach these tabs with my screwdriver.  I usually release the left side first, and then I release ...
Read more

Macintosh: Upgrading an eMac

It's been a long time since I wrote this article, but the fact remains: The good old eMac can still be useful if you take the simple steps to keep it as good as it can be.  All can run Tiger, and most can run Leopard - great operating systems for their day with a bit of useful life.  This article describes the procedure I used to upgrade my old eMac, including: Replacing the internal hard disk with a large capacity drive. Increasing the memory for performance Upgrading the operating system Here I'm upgrading a 700 MHz eMac, but the procedure and tasks for upgrading other eMac models should be almost identical. Upgrading versus Replacing My sister's eMac is of the 700 mhz variety, with 256 MB of memory. The machine seemed to be getting "slower", and the original 40 GB disk was becoming jammed packed with photos and iTunes, and within a few months she'd be out of disk space. There were two options to address the problems: upgrade the eMac, or go o...
Read more

Sodastream Carbonator Leakage, Usage, and Weight

SodaStream 60L "Carbonator" CO2 cylinders have a specific weight when empty, plus about 410 or so grams for the CO2 they should have when they're "full".  A little while ago I went to buy a replacement Carbonator from my local hardware store. The dealer pulled a new Carbonator out of the box and sensed it was lighter than usual.  He put the "light" Carbonator in the "empty" pile and sold me a different one.  At that moment I concluded that it would be smart of me to weigh both new and empty SodaStream carbonators.  Here are the results. Weighing a SodaStream Carbonator - for both Science and Consumer Protection.       The dealer told me that sometimes the carbonators leak after they leave the SodaStream filling facility.  That means there could be an opportunity for customers like me to get ripped off! The SodaStream cylinders I buy claim to have a net product weight of 410 grams - and that means that a full Soda Stream Carbonator shou...
Read more

Excellent DD-WRT Router for Me: Netgear WNDR3400 / N600

My WiFi performance was suffering, and so I decided to do something about it and upgrade my router. When I say my WiFi performance was suffering, I really mean it:  I live in a large high-rise apartment building and there are 100+ WiFi access points visible from my home office.  All of the contentious traffic was severely curtailing my WiFi reliability.  I was lucky to get 1 Mbit/second throughput.  Sometimes I was lucky to stay connected even with my WiFi router in the same room. I decided it was time to go for 5 GHz, which is a WiFi band which is used less frequently and which has a tougher time traversing walls.  And of course I wanted DD-WRT support.  The set of features I was looking for included: Trouble-free DD-WRT support 5 GHz 802.11n Support Simultaneous dual band capability Inexpensive.  Maybe even cheap.  For me this means under $50.  Under $35 is even better! It sounds like an easy task to bring all this together: A...
Read more

Robust Installation of an HDHomeRun Networked TV Tuner. 64 OTA channels!

I added an HDHomerun (HDHR) over-the-air (OTA) streaming box to my home network, bringing over-the-air broadcast TV to my computers, phones and tablets.  The HDHR is a big upgrade from my previous setup: using a simple "window mount" antenna directly connected to my TV. A TV-attached antenna is good for watching some TV for free, but the HDHR offers so much more flexibility. Figure 0: HDHomeRun on my basement wall   My original OTA TV setup was haphazard at best. It was finicky, ugly, and hard for other people at home to use. I would actually tape my antenna to a window whenever I wanted to watch OTA TV. Plus, it only worked on my TV and not with my other devices. I wanted a cleaner and more modern OTA setup. After looking at possibilities, I developed two goals: (1) bring my OTA TV into the modern Internet-connected era, and (2) set it up in a reliable and pretty way so that other family members wouldn't have to fool around with the antenna or anything else.  With that,...
Read more

Repairing an HP Pavillion DV6 Motherboard

Here's my procedure on how to remove and replace the logic board of an HP Pavilion DV6. My model is a DV6-3122US, and many DV6s of the 3000 series are similar. These machines often fail to start due to a motherboard failure.  With a motherboard failure, upon pressing power the fan will first spin and the power light comes on.  The capslock key will flash white once every 4 seconds, and the f12 key will stay a solid orange, and the screen - although powered up - displays black only. Although the caps lock "single blink" indicator at boot implies a CPU failure, in my experience it is not due to the CPU itself but the supporting components on the motherboard. The only solid solution is to repair or replace the motherboard.  Replacement boards are readily available.  I bought one and replaced it myself. Disassembly Procedure NOTE: The screws are different sizes, and its important to reinstall them correctly.  I color-coded the different screws in the photos...
Read more

Other Posts

Show more