Fast Track C400 Left Side not playing audio on Outputs 1/2
 

I noticed some other people having a similar issue, but not exactly. When I try to play back audio from my DAW (Cakewalk), Channel 1 just stopped working. However, I could hear both outputs through the headphone port in front. I saw another user had just the opposite problem. In my troubleshooting I was able to eliminate the headphones, the cables, the studio monitors and the DAW as the source of the problem (the same thing happens when I try it in other apps such as Groove or Windows Media Player). I also tried reinstalling the latest driver, which didn't help.

So I disabled outputs 1/2 in Cakewalk and switched my cables over to outputs 3/4. Works perfectly on both left and right, except now the headphones are getting no signal PERIOD on either side. Does the headphone port only monitor the signals coming out of 1/2? If so, is there any way to change that? I only ever use 2 outputs at a time, but I also need the headphones to work when recording vocals or a mic'd acoustic instrument. So, I need to either figure out what's going on with outputs 1/2, or figure out how to get the headphone port working with 3/4.

I know that the Fast Track C400 is no longer supported by Avid, nor has it been for quite a while, so they haven't issued a new driver for a long time. I was wondering if (and where) a firmware update might be available that might fix this problem. Or what else I might try.

Thanks in advance for any help or advice.

My Sandra report:

SiSoftware Sandra

ID
Host Name : Alan-PC
Workgroup : WORKGROUP

Computer
Model : Lenovo 20DF0030US ThinkPad E550
Serial Number : PF0C****
Chassis : Lenovo Notebook
Mainboard : Lenovo 20DF0030US
Serial Number : L1HF5******
BIOS : Lenovo J5ET60WW (1.31 ) 02/25/2018
TPM - Trusted Platform Module : STM 1.2 (PCR 24)
Intel vPro : 10.0.30.1072
Total Memory : 15.75GB DDR3 SO-DIMM

Processors
Processor : Intel(R) Core(TM) i5-5200U CPU @ 2.20GHz (2C 4T 2.7GHz, 2.4GHz IMC, 2x 256kB L2, 3MB L3)
Socket/Slot : FC BGA1168

Chipset
Memory Controller : Lenovo Core (Broadwell-ULV) Host Bridge 100MHz, 2x 8GB DDR3 SO-DIMM 1.6GHz 128-bit, Integrated Graphics

Memory Module(s)
Memory Module : 9905428-427.A00LF 8GB DDR3 SO-DIMM PC3-12800U DDR3-1600
Memory Module : 9905428-427.A00LF 8GB DDR3 SO-DIMM PC3-12800U DDR3-1600

Video System
Monitor/Panel : Lenovo LCD 1366x768 (1366x768, N156BGE-EA1
, 15.3")
Monitor/Panel : Dell Computer DELL SE2216H
(1920x1080, 21.7")
Video Adapter : Intel(R) HD Graphics 5500 (24CU 192SP SM5.4 900MHz, 768kB L2, 128MB DDR3 1.6GHz 128-bit, Integrated Graphics)
Video Adapter : Intel(R) HD Graphics 5500 (24CU 192SP SM5.4 900MHz, 768kB L2, 128MB DDR3 1.6GHz 128-bit, Integrated Graphics)

Graphics Processor
OpenCL : Intel(R) HD Graphics 5500 (192SP 24C 900MHz, 576kB L2, 6.3GB DDR3 1.6GHz 128-bit, Integrated Graphics)
D3D 11 : Intel(R) HD Graphics 5500 (192SP 24C 900MHz, 768kB L2, 128MB DDR3 1.6GHz 128-bit, Integrated Graphics)
OpenGL : Intel(R) HD Graphics 5500 (192SP 24C 900MHz, 768kB L2, 128MB DDR3 1.6GHz 128-bit, Integrated Graphics)
OpenGL : Intel(R) HD Graphics 5500 (192SP 24C 900MHz, 768kB L2, 128MB DDR3 1.6GHz 128-bit, Integrated Graphics)

Storage Devices
Samsung SSD 860 EVO 1TB (1TB, SATA600, 2.5", SSD, OPAL) : 932GB (C:)

Logical Storage Devices
SYSTEM_DRV : 1GB (NTFS, 4kB) @ Samsung SSD 860 EVO 1TB (1TB, SATA600, 2.5", SSD, OPAL)
Windows7_OS (C:) : 930GB (NTFS, 4kB) @ Samsung SSD 860 EVO 1TB (1TB, SATA600, 2.5", SSD, OPAL)

Peripherals
LPC Hub Controller #1 : Lenovo Wildcat Point-LP LPC Controller
Audio Device : Lenovo Core (Broadwell) Audio Controller
Audio Codec : Intel 2808
Audio Device : Lenovo Wildcat Point-LP High Definition Audio Controller
Audio Codec : Conexant 510F
Disk Controller : Lenovo Wildcat Point-LP SATA Controller [AHCI Mode]
USB Controller #1 : Lenovo Wildcat Point-LP USB xHCI Controller
USB Controller #2 : Lenovo Wildcat Point-LP USB EHCI Controller

Printers and Faxes
Printer : Send to Microsoft OneNote 16 Driver (1200x1200, Colour)
Printer : Microsoft Software Printer Driver (300x300, Colour)
Printer : Nitro PDF Driver 9 (600x600, Colour)
Printer : Microsoft XPS Document Writer v4 (600x600, Colour)
Printer : Microsoft Print To PDF (600x600, Colour)
Fax : Microsoft Shared Fax Driver (200x200)
Printer : Dell 2350d Laser Printer XL (1200x1200)
Printer : Dell 2350d Laser Printer PS3 (1200x1200)
Printer : Dell 2350d Laser Printer (1200x1200)
Printer : Dell 2330dn Laser Printer XL (1200x1200)
Printer : Dell 2330dn Laser Printer PS3 (1200x1200)
Printer : Dell 2330dn Laser Printer (1200x1200)

Network Services
Network Adapter : Bluetooth Device (Personal Area Network) #2 (Ethernet)
Network Adapter : Intel(R) Ethernet Connection (3) I218-V (Ethernet)
Wireless Adapter : Intel(R) Dual Band Wireless-AC 3160 (802.11n (HT), AES-CCMP, 150Mbps)

Power Management
Battery #1 : SMP LNV-45N1 47.52Wh/3.84Ah

Operating System
Windows System : Microsoft Windows 10 Professional 10.0.18362
Platform Compliance : x64

Re: Fast Track C400 Left Side not playing audio on Outputs 1/2
 

You could buy a simple monitor controller, and use only the 3-4 outputs, eliminating the HP output on the Fasttrack. I suspect it's locked to the 1-2 main outs. And to me, this sounds like hardware failure on channel one.

Re: Fast Track C400 Left Side not playing audio on Outputs 1/2
 

So, would I go from Fast Track 3/4 to the monitor controller, then from there to my studio monitors?

Re: Fast Track C400 Left Side not playing audio on Outputs 1/2
 

Yes. And use the headphone output on the controller. If the 1/2 output is broken, this is one way to solve the problem. And it shouldn't cost you too much.

Re: Fast Track C400 Left Side not playing audio on Outputs 1/2
 

Or get a new interface. :o

Re: Fast Track C400 Left Side not playing audio on Outputs 1/2
 

I started shopping around for an inexpensive monitor controller and they aren't as inexpensive as you might think (at least not by my budgetary standards). Then it occurred to me: why not use my 4-channel headphone amp? I never use more than two sets of headphones at a time anyway. So I ran outputs 3/4 into the stereo input of my headphone amp (luckily I had a spare 2 mono to 1 stereo cable kicking around). Then I plugged my studio monitors into outputs 1 and 2, still leaving outputs 3 and 4 for headphones. Works perfectly. I don't know why I didn't think of this before. I feel kind of foolish, but at the same time I am happy to have everything working again the way I want it to.

Thank you for your suggestions, Ben. While I didn't follow your advice exactly, it did lead me to this solution.

Re: Fast Track C400 Left Side not playing audio on Outputs 1/2
 

That sounds just great. No reason this isn't a good, working, free, solution to your problem, and no reason it should mean any loss of sound quality.