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Chapter 6
6-13
The RTC of the main controller is not found.
The battery capacity is low.
<Probable fault location>
Lithium battery or main controller
<Countermeasure>
1) Start up the printer in the service mode, and then turn off the power.
2) Replace the lithium battery.
3) Replace the main controller
6.2 Location of Connectors and Pin Arrangement
6.2.1 Main controller PCB
0014-9207
F-6-1
T-6-1
T-6-2
J1001
Pin Number Signal name IN/OUT Function
1 VBUS IN USB VBUS(+5V)
2 D- IN/OUT USB data(-)
3 D+ IN/OUT USB data(+)
4 AGND - USB GND
5 FGND - GND (Connector shell)
6 FGND - GND (Connector shell)
J1101
Pin Number Signal name IN/OUT Function
1 GND - GND
2 GND - GND
3 GND - GND
4 +3.3V OUT power supply(+3.3V)
5 +3.3V OUT power supply(+3.3V)
6 +3.3V OUT power supply(+3.3V)
7 +3.3V OUT power supply(+3.3V)
8 +3.3V OUT power supply(+3.3V)
9 +3.3V OUT power supply(+3.3V)
10 N.C. - N.C.
11 GND - GND
12 /PME IN Power management enable signal
13 /INTA IN Interrupt signal
14 GND - GND
15 /RST OUT PCI Reset signal
16 CLK OUT PCI Clock signal
17 /GNT OUT Ground signal
18 GND - GND
19 /REQ IN Request signal
20 AD31 IN/OUT Address and data signal
21 AD30 IN/OUT Address and data signal
22 AD29 IN/OUT Address and data signal
23 AD28 IN/OUT Address and data signal
24 GND - GND
25 AD27 IN/OUT Address and data signal
26 AD26 IN/OUT Address and data signal
27 AD25 IN/OUT Address and data signal
28 AD24 IN/OUT Address and data signal
29 /CBE3 IN/OUT Bus command and byte enable signal
J1801
J2801
J2501
J2601
J2402
J3301
J3002
J2502
J2702
J2701
J3003J3201
J3202
J3601
J3602
J3501
J3502
J1001 J1101
J3001
J3401
J3150