VI
- 16
2.4
Troubleshooting Procedures
[ 1 ] Control panel related
Trouble
Check:
(1) LCD shows nothing.
• Panel-main harness between the main PCB and the control PCB
• Interfaces between the main PCB, NCU PCB and power supply
PCB
• LCD
• Control panel PCB
• Power supply PCB
• NCU PCB
• Main PCB
(2) Control panel inoperative.
• Panel-main harness between the main PCB and the control PCB
• Interfaces between the main PCB, NCU PCB and power supply
PCB
• Control panel PCB
• FPC key
• Main PCB
[ 2 ] Telephone related
Trouble
Check:
(1) No phone call can be made.
• FPC key
• Control panel PCB by using the maintenance-mode function
code 13. If any defective keys are found, replace them. (Refer
to Chapter V, Section 3.7, "Operational Check of Control Panel
PCB.")
• NCU PCB
• Main PCB
(2) Speed dialing or one-touch
dialing will not work.
• Ordinary dialing function (other than the speed and one-touch
dialing)
If it works normally, check the main PCB; if not, refer to item (1)
above.
(3) Speaker silent during on-hook
dialing.
• Ordinary dialing function (Pick up the handset and press the
numerical keys.)
If it works normally, proceed to the following checks; if not, refer
to item (1) above.
(4) Dial does not switch between
tone and pulse.
• Main PCB
(Not supported by the U.S.A. versions.)
(5) Telephone does not ring.
• Speaker
• NCU PCB
• Main PCB
Summary of Contents for FAX 560
Page 4: ...CHAPTER I GENERAL DESCRIPTION ...
Page 15: ...CHAPTER II INSTALLATION ...
Page 16: ...CHAPTER III THEORY OF OPERATION ...
Page 18: ...III 1 1 OVERVIEW Not provided on models w o handset Provided on MC models ...
Page 22: ...III 5 Not provided on models w o handset Location of Sensors and Actuators ...
Page 24: ...CHAPTER IV DISASSEMBLY REASSEMBLY AND LUBRICATION ...
Page 29: ...IV 4 ...
Page 44: ...IV 19 ...
Page 67: ...IV 42 Setting up the main PCB after replacement ...
Page 69: ...IV 44 2 Platen gear Gear 24 and joint between gears 32 and chute cover ASSY ...
Page 70: ...IV 45 3 Paper ejection roller document LF roller and document ejection roller ...
Page 71: ...CHAPTER V MAINTENANCE MODE ...
Page 76: ...V 4 FAX T78 Mode key Menu Set key 0 key Stop key ...
Page 79: ...V 7 Scanning Compensation Data List a b c d e f g h i j k ...
Page 122: ...V 50 WSW37 Function setting 15 Selector No Function Setting and Specifications 1 8 Not used ...
Page 126: ...V 54 Models except FAX T78 equipped with a built in TAD FAX T78 Key Button Entry Order 2 ...
Page 132: ...CHAPTER VI ERROR INDICATION AND TROUBLESHOOTING ...
Page 159: ...A Main PCB 2 5 FAX560 FAX645 FAX816 FAX1280 FAX T72 FAX T74 FAX T82 FAX T84 ...
Page 160: ...A Main PCB 3 5 FAX560 FAX645 FAX816 FAX1280 FAX T72 FAX T74 FAX T82 FAX T84 Ceramic capacitor ...
Page 161: ...A Main PCB 4 5 FAX560 FAX645 FAX816 FAX1280 FAX T72 FAX T74 FAX T82 FAX T84 Ceramic capacitor ...
Page 168: ...A Main PCB 1 4 FAX T78 Ceramic capacitor ...
Page 169: ...A Main PCB 2 4 FAX T78 Ceramic capacitor ...
Page 170: ...A Main PCB 3 4 FAX T78 Ceramic capacitor ...
Page 171: ...A Main PCB 4 4 FAX T78 Ceramic capacitor ...
Page 172: ...A Main PCB 1 4 FAX560 for U S A Ceramic capacitor ...
Page 173: ...A Main PCB 2 4 FAX560 for U S A Ceramic capacitor ...
Page 174: ...A Main PCB 3 4 FAX560 for U S A Ceramic capacitor ...
Page 175: ...A Main PCB 4 4 FAX560 for U S A Ceramic capacitor ...
Page 176: ...B NCU 1 1 U S A CANADA ARGENTINA CHILI MEXICO GULF ...
Page 179: ...B NCU 1 1 GERMANY AUSTRIA ...
Page 180: ...B NCU 1 1 AUSTRALIA ...
Page 181: ...B NCU 1 1 CHINA TAIWAN HONG KONG SINGAPORE RUSSIA ...
Page 182: ...B NCU 1 1 NEW ZEALAND ...
Page 183: ...B NCU PCB FAX560 for U S A ...
Page 184: ...C Contorol Panel 1 2 FAX560 FAX645 FAX816 FAX1280 FAX T72 FAX T74 FAX T82 FAX T84 ...
Page 185: ...C Contorol Panel 2 2 FAX560 FAX645 FAX816 FAX1280 FAX T72 FAX T74 FAX T82 FAX T84 ...
Page 186: ...C Contorol Panel 1 2 FAX580MC FAX685MC FAX1980MC FAX T76 FAX T86 MFC660MC MFC960MC ...
Page 187: ...C Contorol Panel 2 2 FAX580MC FAX685MC FAX1980MC FAX T76 FAX T86 MFC660MC MFC960MC ...
Page 188: ...C Control Panel 1 2 FAX T78 Ceramic capacitor Not mounted ...
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