No audio output
THE FIX - to audio problems that persist
with the VSX-29TX and others using the AWX7272 DSP board is to replace the ROM on the DSP. My unit
started failing on and off after 10 years of use! The intermittent DSP
board is an Extremely Common and irritating Problem for this model! The replacement IC,(2) resistors + shipping and handling totaled $49.65 and
my unit is finally fixed correctly! Don't believe other posts that you
can get away with re-soldering; it will continue to fail again and
again! Details of fix are:
Replacement for the old Pioneer ROM located at location IC 9374, should
be done with the part PD6381A from Pioneer Electronics. You will also
need to move (relocate) the 2 resistors (0 Ohm resistors) located at
R9372 and R9371 to locations R9374 and R9373.
This component update applies to DSP boards marked as AWX7433, AWX7272.
This fix is validated (from Pioneer) on the VSX-26TX,VSX-27TX,&
VSX-29TX it might also work in the VSX-908, VSX-908RDS and others as
long as the same DSP board was used.
Let me caution and stress that surface mount soldering skills ARE
REQUIRED to do this update! It also doesn't hurt to have excellent
vision and/or an eye loop or microscope to check your work. Original
ROM's were subject to timing changes internal to the part as a result of
HEAT. This model does get HOT! The program was also modified as a further safeguard to
Jan 30, 2010 |
Pioneer VSX-29TX Receiver