FSG/MTM/001 060511
31
Adjustment Procedure:
Note: The voltage on TP7 is clamped to approximately 3.9 V. It may be necessary to turn
P2 several turns CCW to bring the voltage below the clamp voltage.
1.
Make sure that the lamp is new. If not it must be replaced
2.
Remove the front cover of the scanner
3.
Switch on the scanner
4.
Wait for the lamp to switch on for the
second
time (after approx. 30 seconds)
5.
Turn P2 CW until LED3 switches ON and then slowly CCW until LED3 switches OFF *
6.
Leave the scanner on for 1 minute
7.
Turn P2 CW until LED3 switches ON and then slowly CCW until LED3 switches OFF *
8.
Replace the front cover
9.
Reset the lamp counter:
•
Start SCANtest 6
•
Select Test 1 (Scanner Information)
•
Press the button “Reset Lamp Counter”
•
Type the password “xetnoc” and press “Reset Lamp Counter”
10.
Run Scanner Maintenance to ensure correct Basic- and Color Calibration
* On early LME boards the LED’s are missing. In this case connect a voltmeter between
TP7 and GND and adjust to –300mV. Note that the voltage will change slightly after
adjustment, but this is normal and does not call for continued re-adjustments.
3.4.3
Signal LEDs on the LME-Board
The two indicators, LED3 and LED4, which are found on newer versions of the LME-Board,
indicate the status of the stabilization circuit of the Lamp Driver. The two LEDs are
controlled by the feedback voltage on TP7 and both LEDs will be ON as long as the feedback
voltage is within the active range of the stabilization circuit. LED3 can however be OFF in a
period of time right after a new lamp has been installed (and the lamp driver adjusted).
If LED4 is OFF it indicates that the stabilization circuit is close to or outside the active range
and the lamp should be replaced.
3.4.4
Stepper Motor Reference Voltages
The stepper motor must be stopped for adjustment of the reference voltages.
Adjust P3 until the voltage on TP12 reads:
10 mV ± 10 mV
Adjust P4 until the voltage on TP13 reads:
10 mV ± 10 mV
3.4.5
Functional Test
SCANtest 6: Test 5, Lamp Test
Test 6, Motor Test
Summary of Contents for CHAMELEON 25
Page 69: ...FSG MTM 001 060511 65 Fig 3 21 OIBA Component Layout Fig 3 20 OSB Component Layout ...
Page 102: ...FSG MTM 001 060511 98 Fig 4 19 COUGAR Tx 36 CHAMELEON Tx 36 PREMIER Tx 36 Focus Signals ...
Page 106: ...FSG MTM 001 060511 102 Fig 4 20 COUGAR 25 CHAMELEON 25 Scan Width ...
Page 109: ...FSG MTM 001 060511 105 Fig 4 25 CHROMA Tx 40 CRYSTAL Tx 40 Scan Width Camera C ...
Page 118: ...FSG MTM 001 060511 114 Fig 4 32 COUGAR 25 CHAMELEON 25 CCD Centering and Vertical Positioning ...
Page 183: ...FSG MTM 001 060511 179 Fig 11 1 COUGAR 25 Primary Wiring WHITE LME WHITE SMPS L N WHITE ...
Page 185: ...FSG MTM 001 060511 181 Fig 11 3 CHAMELEON 25 Primary Wiring WHITE LME WHITE SMPS L N WHITE ...
Page 187: ...FSG MTM 001 060511 183 Fig 11 5 COUGAR 36 Primary Wiring WHITE SMPS WHITE LME L N WHITE ...
Page 193: ...FSG MTM 001 060511 189 Fig 11 11 MAGNUM XL 54 Primary Wiring ...
Page 194: ...FSG MTM 001 060511 190 Fig 11 12 MAGNUM XL 54 Secondary Wiring ...
Page 205: ...FSG MTM 002 060511 7 Fig 2 1 COUGAR Sx 25 and CHAMELEON Sx 25 Block Diagram ...
Page 207: ...FSG MTM 002 060511 9 Fig 2 2 CHROMA XL 42 and CRYSTAL XL 42 Block Diagram ...
Page 241: ...FSG MTM 002 060511 43 Fig 6 1 Sx 25 Primary Wiring ...
Page 242: ...FSG MTM 002 060511 44 Fig 6 2 Sx 25 Secondary Wiring ...
Page 243: ...FSG MTM 002 060511 45 Fig 6 3 XL 42 Primary Wiring ...
Page 244: ...FSG MTM 002 060511 46 Fig 6 4 XL 42 Secondary Wiring ...
