Testing Sensors S6-S9 Via Leds - Kodak DryView 8150 Service Manual

7-4-1-3.

Testing SENSORS S6-S9 Via LEDs

The LEDs for S6 through S8 are located on the MCS BOARD (see Figure 7-12). The LED for S9 is
located on the DENSITOMETER LIGHT SOURCE BOARD. Use the LEDs to test these SENSORS as
follows:
1. Check that the IMAGER is in the Preliminary state described in paragraph 7-4-1-1, except:
a. Set the JP1 (LEDs) JUMPER on the MCS BOARD to short pins 1 and 2 (see Figure 7-12). This
will enable the LEDs.
b. Set the JP5 JUMPER (SENSORS) to short pins 1 and 2. This will enable the SENSORS.
2. Test the 4 SENSORS:
a. Check the state of the LED for the SENSOR.
b. Load a CARTRIDGE of transport (waste) film. Set the SERVICE OVERRIDE SWITCH to the
Normal position, then back to the Service position. Allow time for the CARTRIDGE to close.
c. Run a print sequence and check that the LED toggles.
3. After completing the test, reset the JUMPERS and remove the CARTRIDGE of transport film.
Ref Des SENSOR Description
S6 PLATEN FILM
S7 OPTICS HOME
S8 VERTICAL
TRANSPORT
S9 DENSITOMETER/ EXIT DENSITOMETER
VCC1
GND1
J24
SW1
GND2
JP6
SENSOR
ENABLE
SW3
LED8
HAPPY
LED
J13
TRANSPORT
2005 July Rev. B 7F3318
ASSEMBLY
IMAGING
IMAGING
VERT.
TRANSPORT
J17 (RTD)
TP1
VR1
(RTD CAL)
JP1
AGND1
TP2
VR2
J1
LED5
LED6
--12V
LED7
SW4 +12V
FPGA CONFIG
+24V
J16
MGND
J5
J2
TOPH
+12V
J10
J15
J22
HAZ
J14
+12V
HAZ
LASER PLATEN +24V
MCS BOARD
Figure 7-12. SENSORS S6 through S9 and LEDs
Type LED State on MCS BOARD
Flag LED1: Off when film contacts flag.
U-type LED2: On when SCANNER is home.
Flag LED4: Off when film contacts flag.
Flag LED2: Off when film contacts flag.
NOT
USED
S8
J18
J20
J19
NOT
USED
J3
S6
S7
J7
J4
Section 7 - - Troubleshooting
S9
MCS_BoardSensors
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