Board LEDS
This section describes the functions of the LEDs on the most important PCBs.
PSU, MCU, IPU
PSU LEDs
The PSU supplies dc current to electrical components and also controls the flow of ac current to the fusing
lamp, dehumidifiers (x4), and anti-condensation heaters (x2).
No.
Color
Meaning
Vaa +24 V
GREEN
ON
Normal
OFF
• PSU defective, or the +24 V system has shorted or is
defective.
Vca2 –12 V
GREEN
ON
Normal
OFF
• PSU defective, or the –12 V system has shorted or is
defective.
Vca2 +12 V
GREEN
ON
Normal
OFF
• PSU defective, or the +12 V system (HDD) has shorted
or is defective.
Vcc +5.1 V
GREEN
ON
Normal
4. Troubleshooting
222
4
Содержание Neptune-P1
Страница 1: ...Neptune P1 Machine Code G180 SERVICE MANUAL June 2007 Subject to change...
Страница 13: ...Folder D889 452 Manual Feeder D333 453 Paper Cassette B853 454 Main Machine Configuration 455 12...
Страница 103: ...1 Installation 102 1...
Страница 111: ...Fusing Gears 1 Fusing Gears Barrieta S552R Apply to the surface of the rim 2 Preventive Maintenance 110 2...
Страница 114: ...Rear Cover 1 Rear cover x 2 A 2 Controller cover B x 1 Paper Exit Unit Common Procedures 113 3...
Страница 142: ...RF Exit Sensor 1 Open the drawer of the roll feeder 2 Plate A x 2 3 RF exit sensor B x 1 x 1 Paper Feed 141 3...
Страница 170: ...5 Remove the PSU A x1 x10 x all Controller Board 1 Remove A Rear cover x2 B Controller cover x1 Boards 169 3...
Страница 177: ...3 Remove the SFDB A x 2 x 2 standoffs x 2 3 Replacement and Adjustment 176 3...
Страница 180: ...4 Remove the cooling fan D x3 x1 Others 179 3...
Страница 402: ...Toner End Recovery Flow Chart Development 401 6...
Страница 449: ...6 Details 448 6...
Страница 457: ...MEMO 456...