Audio I/O's Check - Epson EMP-822 Service Manual

3.3.7 Audio I/O's Check

Start
1. Input audio signal to audio I/F.
2. Press [Source Search] button
and switch to the corresponding
souce.
3. Output sound from the Speaker.
1. Does the sound output from
Speaker?
2. Is the volume control effective?
3. With [A/V Mute] button,
is the function of stopping
/resuming the sound effective?
For more information, refer to
4.4.2.2. "Removing the Speaker. (EMP-X5/EMP-S5 only)" (p. 34)/4.4.2 "Removing the Optical Engine and MAB
set(1) (MA Board Assy.) /IF Case" (p. 26)
(p. 39)
SEIKO EPSON
EMP-822/EMP-83/EMP-X5/EMP-S5
NG
4.5.3 "Removing the Lamp Fan/Speaker Unit (EMP-822/EMP83 only)" (p. 50)
/ 4.4.5 "Removing the Optical Engine and MAB set (2) (Optical Engine)"
Flowchart 3-9 Audio I/O's Check
3-19
1. Re-connect MA board CN3003
(EMP-822/83)/CN501 (EMP-X5/S5)
correctly.
NG
2. Replace Speaker
NG
3. Replace Optical Engine and
MAB set.
If the audio I/O does not work well,
apply the remedy from the top (1).
If it doesnot work, go on to the next remedy.
END
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Revision:A