newcoppiceman
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Here's another funny to add to the list of observations about this unit:
I recently bought a spare unit and we've had it in service for a couple of months - it's been used daily for DAB radio and Freeview TV (via AUX 1) and from time-to-time for CDs, DVDs, cassettes and the VCR (via AUX 1) and the Wii (via AUX 2). It's behaved fine, except for the fact that it wasn't possible to set the normal listening level very easily as the volume increments - at least at low-to-medium levels - were very coarse compared with our original unit (now back in service and offering a very smooth change in volume level). The same remote was used throughout, incidentally.
Followers of various threads such as:
http://www.avforums.com/forums/all-one-systems/1054589-teac-dr-h300dab-design-faults-problems.html
on the DR-H300DAB and its design flaws, replacing the OPU, etc may know that I have a service manual. This reveals that the unit uses a PT2314 4-channel input audio processor chip from Princeton Technology Corp for source selection, volume/loudness, frequency shaping and muting. The chip spec says that the volume control is in 1.25dB steps which should be fine - 1dB is usually taken as an audio JND (just noticeable difference). So either I've a dodgy chip, or there's something amiss with the Teac host software which controls the chip via the ubiquitous I2C (that's actually I-squared C) bus.
Page 55 of the owner's manual states that in DAB or FM mode pressing the INFO/REPEAT button for more than 2s will display "System Reset" and pressing it again will display the software version, so I'll see if they're different between the two units.
Anyone else suffer from coarse volume control?
I will report back.
I recently bought a spare unit and we've had it in service for a couple of months - it's been used daily for DAB radio and Freeview TV (via AUX 1) and from time-to-time for CDs, DVDs, cassettes and the VCR (via AUX 1) and the Wii (via AUX 2). It's behaved fine, except for the fact that it wasn't possible to set the normal listening level very easily as the volume increments - at least at low-to-medium levels - were very coarse compared with our original unit (now back in service and offering a very smooth change in volume level). The same remote was used throughout, incidentally.
Followers of various threads such as:
http://www.avforums.com/forums/all-one-systems/1054589-teac-dr-h300dab-design-faults-problems.html
on the DR-H300DAB and its design flaws, replacing the OPU, etc may know that I have a service manual. This reveals that the unit uses a PT2314 4-channel input audio processor chip from Princeton Technology Corp for source selection, volume/loudness, frequency shaping and muting. The chip spec says that the volume control is in 1.25dB steps which should be fine - 1dB is usually taken as an audio JND (just noticeable difference). So either I've a dodgy chip, or there's something amiss with the Teac host software which controls the chip via the ubiquitous I2C (that's actually I-squared C) bus.
Page 55 of the owner's manual states that in DAB or FM mode pressing the INFO/REPEAT button for more than 2s will display "System Reset" and pressing it again will display the software version, so I'll see if they're different between the two units.
Anyone else suffer from coarse volume control?
I will report back.