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CR-IR341
Service Manual
009-051-04
05.31.99 FM2460
MD - 53
MD - 53
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LED functions
The SCN08A board has eight LEDs mounted on its surface to permit visual inspection of
signals. Their locations on the board and signals detected are shown below.
S1
D16
D15
D14
D13
D12
D11
D10
D9
D8
SCN08A board
FR1H4031.EPS
HVON (HV ON LED)
This LED is OFF when reading operation is performed under
the HV ON condition. To check the LED, HV should be turned
OFF.
SOH (leading-edge sensor check LED)
Normal if this LED is ON, or if the leading edge of the IP is
located at SZ1 (IP leading-edge sensor) with this LED OFF.
If this LED is OFF or blinking (slow blinking), with the IP not
located at SZ1, and the laser is normal, then it is necessary to
check SZ1.
SOS (staring-point sensor LED)
Normal if this LED is ON. If this LED is blinking (slow blinking)
or OFF and the laser is normal, then it is necessary to check
the start-point sensor board.
POLLOCK (polygon lock LED)
When this LED is ON, the polygonal mirror is rotating at a
constant speed. If it is OFF or blinking, it is necessary to check
the polygonal mirror.
PCLK (pixel clock check LED)
When this LED is ON, a pixel clock is generated during
reading. If this LED is OFF and the laser is normal, it is
necessary to check the SCN08A board.
LCLK (line clock check LED)
When this LED is ON, a line clock is generated during reading.
If this LED is OFF and the laser is normal, it is necessary to
check the SCN08A board.
FCLK (frame clock check LED)
When this LED is ON, reading is in progress. If LED is OFF
even though the leading edge of the IP is detected
(leading-edge sensor check LED is OFF) and the laser is
normal, then it is necessary to check the SCN08A board.
LD2OK (second laser check LED)
When this LED is ON, the laser is normal. If it is OFF, it is
necessary to check the first or second laser.
LD1OK (first laser check LED)
When this LED is ON, the laser is normal. If it is OFF, it is
necessary to check the first or second laser.
009-051-05
04.20.2001 FM3006
Summary of Contents for CR-IR341
Page 8: ...CR IR341 Service Manual 0 3_4 009 051 07 08 30 2001 FM3115 0 3_4 Safety Precaution BLANK PAGE...
Page 9: ...CR IR341 Service Manual 0 4 009 051 07 08 30 2001 FM3115 0 4 BLANK PAGE...
Page 10: ...CR IR341 Service Manual 0 5 009 051 07 08 30 2001 FM3115 0 5 BLANK PAGE...
Page 48: ...CR IR341 Service Manual 009 051 04 05 31 99 FM2460 BLANK PAGE...
Page 63: ...CR IR341 CR IR341P Service Manual Machine Description MD...
Page 256: ...CR IR341 Service Manual 009 051 04 05 31 99 FM2460 MD 191 MD 191 11 CONTENTS BLANK PAGE...
Page 258: ...CR IR341 Service Manual 009 051 04 05 31 99 FM2460 MD 193 MD 193 12 11 CONTENTS BLANK PAGE...
Page 259: ...CR IR341 CR IR341P Service Manual Troubleshooting MT...
Page 342: ...CR IR341 Service Manual MT 73 009 051 04 05 31 99 FM2460 MT 73 2 3 4 5 6 1 CONTENTS BLANK PAGE...
Page 488: ...CR IR341 Service Manual MT_A1 2 009 051 06 04 20 2001 FM3006 MT_A1 2 BLANK PAGE...
Page 489: ...CR IR341 Service Manual MT_A1 3 009 051 06 04 20 2001 FM3006 MT_A1 3 BLANK PAGE...
Page 490: ...CR IR341 Service Manual MT_A1 4 009 051 06 04 20 2001 FM3006 MT_A1 4 BLANK PAGE...
Page 491: ...CR IR341 CR IR341P Service Manual Checks Replacement and Adjustment of Parts MC...
Page 783: ...CR IR341 CR IR341P Service Manual Maintenance Utility MU...
Page 963: ...CR IR341 CR IR341P Service Manual Service Parts List SP...
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Page 1087: ...CR IR341 CR IR341P Service Manual Preventive Maintenance PM...
Page 1092: ...CR IR341 Service Manual PM 3 009 051 04 05 31 99 FM2460 PM 3 2 3 4 1 CONTENTS BLANK PAGE...
Page 1176: ...CR IR341 Service Manual PM 87 009 051 04 05 31 99 FM2460 PM 87 2 3 4 1 CONTENTS BLANK PAGE...
Page 1178: ...CR IR341 Service Manual PM 89 009 051 04 05 31 99 FM2460 PM 89 2 3 4 1 CONTENTS BLANK PAGE...
Page 1179: ...CR IR341 CR IR341P Service Manual Installation IN...
Page 1412: ...CR IR341 Service Manual IN_A8 4 009 051 06 04 20 2001 FM3006 IN_A8 4 CONTENTS A8 BLANK PAGE...
Page 1414: ...CR IR341 Service Manual IN_A9 2 009 051 07 08 30 2001 FM3115 IN_A9 2 BLANK PAGE...
Page 1462: ...CR IR341P 342P 343P 344P 345P 347P 348RU Service Manual 47 009 064 01 08 30 2001 FM3145 47...