Sharp AR-286 User Manual download pdf (Page 7)

Trouble code

Description

Main

code

Sub

code

L3 00 Content Scanner return trouble

Detail Scanner return is not finished within the

specified time. (timer is change by

magnification)

Cause Mirror unit defective

Scanner wire disconnected

Check

and

remedy

Check scanning operation with SIM1-1.

L4 01 Content Main motor lock detection

Detail Motor lock signal is detected for 1.5

seconds during main motor rotation

Cause Main motor defective

Improper connection of harness between

PCU PWB and main motor

Control circuit defective

Check

and

remedy

Check main motor operation with

SIM25-1.

Check harness and connector between

PCU PWB and main motor.

L6 10 Content Polygon motor lock detection

Detail It was judged that there is no output of

polygon motor lock signal of LSU.

The lock signal was checked at about

10-second intervals after the polygon

motor started rotating. As result, it was

judged that the polygon motor failed to

operate normally.

Cause Disconnected connecter to LSU or

detached harness inside LSU or broken

wire.

Polygon motor defective

Check

and

remedy

Check polygon motor operation with

SIM61-1.

Check harness and connector for

connection. Replace LSU if needed.

L8 01 Content No full-wave signal

Detail Full-wave signal is not detected.

Cause PCU PWB trouble

Power unit trouble

Check

and

remedy

Check connection of the harness and the

connector.

Replace the PCU PWB.

Replace the power unit.

02 Content Full-wave signal with abnormality

Detai Full-wave signal frequency abnormality

detected.

(The detected frequency: 69Hz or above

or 42.5Hz or below)

Cause Check for disconnection or improper

connection of the connector of the PCU

PWB and the power PWB harness.

PCU PWB trouble

Power unit trouble

Check

and

remedy

Check connection of the harness and

connector.

Replace the power unit.

Trouble code

Description

Main

code

Sub

code

U2 00 Content EEPROM read/write error

Detail EEPROM version error. Error in writing

into EEPROM.

Cause EEPROM defective

Uninitialized EEPROM is installed

Defective EEPROM access circuit on

PCU PWB

Check

and

remedy

Check EEPROM for proper set-up

To prevent the erasure of counter data

and adjustment values, write down the

counter data and adjustment values by

simulation. (If there is a printer option,

execute SIM23-1 and note counter

data/adjustment values.)

Clear U2 trouble with SIM16.

Replace PCU PWB.

11 Content Counter check sum error (EEPROM)

Detail Checksum error in counter data area

Cause EEPROM defective

Control circuit hung up due to noise

Defective EEPROM access circuit on

PCU PWB

Check

and

remedy

Check EEPROM for proper set-up

To prevent the erasure of counter data

and adjustment values, write down the

counter data and adjustment values by

simulation. (If there is a printer option,

execute SIM23-1 and note counter

data/adjustment values.)

Clear U2 trouble with SIM16.

Replace PCU PWB.

U2 12 Content Adjustment value check sum error

(EEPROM)

Detail Checksum error in adjustment value data

area

Cause EEPROM defective

Control circuit hung up due to noise.

Defective EEPROM access circuit on

PCU PWB

Check

and

remedy

Check EEPROM for proper set-up

To prevent the erasure of counter data

and adjustment values, write down the

counter data and adjustment values by

simulation. (If there is a printer option,

execute SIM23-1 and note counter

data/adjustment values.)

Clear U2 trouble with SIM16.

Replace PCU PWB.

AR-505

8/6/1999 9 – 7

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