Audio Operation Check; Stereo/Sa Broadcast Receiving Check - Hitachi 36SDX88B Service Manual

2.5 Audio Operation Check
2.51 MTS Operation Check
2.51 .l StereolSA Broadcast Receiving Check
Preparation for adjustment Adjustment procedure
Notes
1) Receive Stereo Broadcast.
1) Stereo Broadcast receiving check.
1) Select STEREO mode.
2) Check L channel sound from left
speaker when only L channel is
broadcasting.
3) Check R channel sound from right
speaker when only R channel is
broadcasting.
:2) Receive Second Audio
Program, then select it.
4) Check both left and right channel
sound from both speakers when
monaural is broadcasting.
(2) Second Audio Program broadcast
receiving check.
I) Select Second Audio Program
mode.
2) Check if you can hear the Second
Audio Program from both left and
right speakers.
3) Check if you can hear the main
sound when receiving no Second
Audio Program.
l
Select "Stereo/SAP"
alternately
l
Check if "ST" OSD
appears below the
Channel OSD, for approx
8 set when you select
Channel or Recall Button
is pressed.
(3) Set Balance to the center.
2.5.1.2 STEREO Separation Check.
Preparation for adjustment Adjustment procedure Notes
(I ) Receive Stereo or Second 1) Check if there is more than 15dB When receiving broadcast
Audio Program Broadcast.
out difference between L channel and with only L channel audio.
R channel when receiving stereo
(30% modulation f=400Hz)
signal.
(2) Set Surround off.
1) SRS
2) BBE
(3) Select Stereo mode.
(4) Connect probe with Audio
out terminal L and R.
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