Hitachi CP-S335 Service Manual page 11

4-9 AIR-FLOW-SENS adjustment
When the PWB assembly MAIN is replaced, perform this adjustment after completing reassembling the pro-
jector.
1. Set the item "WHISPER" to "NORMAL", then warm up for 5 minutes or more.
2. Open HIDDEN SERVICE MENU with the following procedure and choose "AIR-FLOW-SENS" by using
[▼] button.
HIDDEN SERVICE
FILTER TIME ON
MUTE COLOR BLACK
AIR-FLOW-SENS
SOFT RESET
3. Pressing the [►] button displays the adjustment window. Use the [▲] button to select EXECUTE. The
automatic adjustment program runs.
4. After the message of "END" is displayed in the window, read the given offset value and make sure that it is
in the range; 120
5. Next, select <<NORMAL>> using [▼] button. Pressing [◄] / [►] button changes to <<WHISPER>>. Wait
for 30 seconds or more before following operations.
6. Perform the same operations as the steps 2 and 3 above.
7. After the message of "END" is displayed, read the given offset value and make sure that it is in the range;
90 Offset: 150
8. If both or either of offset values are out of the specified ranges, make sure the below conditions. Then
retry the same adjustments.
1) The air filter is not choke up with dust.
2) No lose connection of connector E301 and E302.
9. If the adjustments failed after treatment, replace either of next parts.
1) PWB assembly MAIN
2) DC FAN (panel)
3) Thermal sensor (inside)
CP-S335(C9SM)/CP-X340(C9X)/CP-X345(C9XM)
By the control panel
1. Display the Advance menu by
the "MENU" button. (If EASY
MENU appears, choose "Go to
Advance menu" to display
ADVANCE MENU.)
2. Select the "OPTION" on the
menu.
3. Continue press the button [ ]
fi rst, then press the button [ ]
together with "INPUT", and hold
for 3 seconds.
offset: 170.
AIR-FLOW-SENS
offset:127
EXECUTE
CANCEL
<<NORMAL>>
How to open HIDDEN SERVICE menu
By the remote control transmitter
1. Display the Advance menu by
the "MENU" button. (If EASY
MENU appears, choose "Go to
Advance menu" to display
ADVANCE MENU.)
2. Select the "OPTION" on the menu.
3. Press the "MAGNIFY OFF"
button.
Next hold the "MAGNIFY OFF"
button for 3 seconds.
AIR-FLOW-SENS
offset:139
END
EXECUTE
CANCEL
<<NORMAL>>
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