VI
- 12
Does the upper cover hook press the actuator
of the interlock switch on the main PCB
correctly when upper cover is closed?
Possible cause
Step
Check
Result
Remedy
Upper cover
1
No
Replace the upper cover assy.
"12 COVER OPEN" is displayed even if the upper cover is closed
M-6
Yes
Replace the main PCB assy.
Main PCB
Possible cause
Step
Check
Result
Remedy
1
Control panel
PCB
Switch flat cable
Main PCB
Yes
No
Replace the Main PCB assy.
Mis-operation
Are the switchs operated according to the
operation manual?
Operate the switches
correctly following the
operation manual.
Switch
2
When a switch is pressed,does the voltage of
the following signals change from 5V to 0V?
Signal
SW8(SEL)
SW7(MODE/EMULATION)
SW6(FONT/ECONOMY)
SW5(FORM FEED/FEEDER)
SW4(SET/COPY)
SW3(CONTINUE/SHIFT)
SW2(DOWN/RESET)
SW1(UP/TEST)
Main PCB
P1-8
P1-10
P1-12
P1-14
P1-16
P1-18
P1-20
P1-21
---
---
---
---
Panel PCB
P1-14
P1-12
P1-10
P1-8
P1-6
P1-4
P1-2
P1-1
---
---
---
---
No
Replace the control panel
unit or the switch flat cable.
Malfunction of control panel switches.
M-4
Is the "Buzzer on mode "selected according
to the operation manual?
(To alternate the buzzer on/off mode selection,
press the MODE switch and select the
"Advanced mode ".)
Check the buzzer signal with a oscilloscope.
Is the pulse of 4KHz output?
Possible cause
Step
Check
Result
Remedy
Operational
error
1
No
Set the buzzer on mode.
2
No
Replace the main PCB assy.
Malfunction of buzzer
M-5
Yes
Replace the main PCB assy.
Main PCB
Buzzer
Summary of Contents for HL-1660 Series
Page 1: ......
Page 109: ...Appendix 3 Main PCB Circuitry Diagram 1 7 CODE UK3787000 B48K294 295CIR 1 7 NAME A 3 ...
Page 110: ...Appendix 4 Main PCB Circuitry Diagram 2 7 CODE UK3787000 B48K294 295CIR 2 7 NAME A 4 ...
Page 111: ...Appendix 5 Main PCB Circuitry Diagram 3 7 CODE UK3787000 B48K294 295CIR 3 7 NAME A 5 ...
Page 112: ...Appendix 6 Main PCB Circuitry Diagram 4 7 CODE UK3787000 B48K294 295CIR 4 7 NAME A 6 ...
Page 113: ...Appendix 7 Main PCB Circuitry Diagram 5 7 CODE UK3787000 B48K294 295CIR 5 7 NAME A 7 ...
Page 114: ...Appendix 8 Main PCB Circuitry Diagram 6 7 CODE UK3787000 B48K294 295 CIR 6 7 NAME A 8 ...
Page 115: ...Appendix 9 Main PCB Circuitry Diagram 7 7 CODE UK3787000 B48K294 295CIR 7 7 NAME A 9 ...
Page 116: ...Appendix 10 Control Panel PCB Circuitry Diagram 1 1 A 10 CODE NAME UK2527000 B48K143CIR ...
Page 117: ...Appendix 11 Scanner LD PCB Circuitry Diagram 1 1 A 11 CODE NAME UK2674000 B48K165CIR ...
Page 118: ...I Brother Laser Printer HL 1260e HL 1660 series USER S GUIDE ...
Page 328: ...APPENDICES Appendix 17 PC 8 10U PC 8 D N 11U PC 850 12U PC 852 17U ...
Page 330: ...APPENDICES Appendix 19 Legal 1U Ventura Math 6M Ventura Intl 13J Ventura US 14J ...
Page 331: ...USER S GUIDE Appendix 20 PS Math 5M PS Text 10J Math 8 8M Pi Font 15U ...
Page 332: ...APPENDICES Appendix 21 MS Publishing 6J Windows 3 0 9U Desktop 7J MC Text 12J ...
Page 334: ...APPENDICES Appendix 23 ...
Page 336: ...APPENDICES Appendix 25 PC 8 PC 8 D N PC 850 PC 852 ...
Page 337: ...USER S GUIDE Appendix 26 PC 860 PC 863 PC 865 PC 8 Turkish ...
Page 338: ...APPENDICES Appendix 27 IBM Mode PC 8 PC 8 D N PC 850 PC 852 ...
Page 339: ...USER S GUIDE Appendix 28 PC 860 PC 863 PC 865 PC 8 Turkish ...
Page 340: ...APPENDICES Appendix 29 HP GL Mode ANSI ASCII 9825 CHR SET ...
Page 341: ...USER S GUIDE Appendix 30 FRENCH GERMAN SCANDINAVIAN SPANISH LATIN JIS ASCII ...
Page 342: ...APPENDICES Appendix 31 ROMAN8 EXT ISO IRV ISO SWEDISH ISO SWEDISH N ...
Page 343: ...USER S GUIDE Appendix 32 ISO NORWAY 1 ISO GERMAN ISO FRENCH ISO U K ...
Page 344: ...APPENDICES Appendix 33 ISO ITALIAN ISO SPANISH ISO PORTUGUESE ISO NORWAY 2 ...
Page 407: ...LASER PRINTER PARTS REFERENCE LIST HL 1660e ...
Page 414: ...5 MAIN PCB MODEL HL 1660e 54T U03 103 4 4 4 1 2 2 6 4 5 3 4 1 ...