OKI 20, 20n Troubleshooting Manual

OKIP AGE 20 LED Page Printer

T roubleshooting Manual with Component Parts List

ODA/OEL/INT

All specifications are subject to change without notice.

40692901TH

An edit task fetches data from the receive buffer, analizes commands, and reconstructs the data in such a way that print data are aligned from up to down and from right to left; then it writes the resultant data into a page buffer with such control data as print position coordinate, font type, etc. added.

(3) Font Processing

When one page editing is finished, a developing task makes an engine start and fetches data from the page buffer synchronizing with a printing operation; then it developes the fetched data to a bit map as referring to data from a character generator, and writes the resultant data into the raster buffer (of band buffer structure).

(4) Raster buffer read.

As controlling the engine operation, an engine task sends data from the raster buffer to the LED head.

- 2 -

FLASH ROM

Module

or

PS ROM

Module

ROM

DRAM

Module

DRAM

MAIN BOARD(BOARD - AAA)

LSI

DUPLET unit

MULTI feeder

2nd tray

Paper end sensor

Paper near end sensor

BOARD PXC

3rd tray

Tray size sensor boad

Parllel

I/F

RS232C

I/F

LAN etc.

(option)

POWER SUPLY UNIT (AC120/230V)

Outlet sensor

7407

75188

OKI HSP Boad (option)

3V 5V +8V -8V 38V

CPU

EEPROM

LSI

TRANSISTOR

DRIVER

CL

M

Operator panel

Inlet sensor 1 paper sensor Inlet sensor 2 Toner sensor

Clutch for Regist Roller

Clutch for Hopping Roller

Hopping Motor

Main Motor

LED HEAD

THERMISTOR

LOW VOLTAGE

GENERATINO

CIRCUIT

FILTER CIRCUIT

AC120V/230V

COVER OPEN SW

DRIVER

POWER SUPLY UNIT (high voltage)

Figure 3-1 Block Diagram

- 3 -

0V

HIGH

VOLTAGE

CIRCUIT

Sub-CH CH TR DB SB CB

SUB CHARGE ROLLER

CHARG ROLLER

TRANSFER ROLLER DEVELOPPING ROLLER TONER SUPLY ROLLER

CLEANING ROLLER

FAN

HEATOR

3.2 CPU and Memory

(1) CPU (MHM2029-003K-41)

CPU core : RISC CPU (MIPS R3000 compatible) CPU clock : 40.5504 MHz Data bus width: Exterior 32 bits, Interior 32 bits

(2) ROM (HP LaserJet V emulation)

ROM capacity : 6 Mbytes (24-Mbit mask ROM two pieces) ROM type : 24 Mbits (1.5M x 16 bits) Access time : 100 ns

(3) Option ROM (SIMM: one slot)

PostScript SIMM or FLASH SIMM

• PostScript SIMM (Adobe PostScript emulation) ROM capacity : 4 Mbytes (16 Mbit mask ROM two pieces) ROM type : 16 Mbits (2M x 16 bits) Access time : 100 ns

• FLASH SIMM ROM capacity : 4 Mbytes (8 Mbit FLASH ROM four pieces)

ROM type : 8 Mbits (1M x 8 bits) or 16 Mbits (2M x 8 bits) Access time : 90 ns

or 8 Mbytes (16 Mbit FLASH ROM four pieces)

(4) Resident RAM

RAM capacity : 4 Mbytes (16 Mbit D-RAM two pieces) RAM type : 16 Mbits (1 M x 16 bits) Access time : 60 ns

(5) Option RAM (SIMM: two slots)

RAM capacity : Max. 32 Mbytes (4 Mbytes, 8 Mbytes, 16 Mbytes, 32 Mbytes) Access time : 60 ns, 70 ns, 80 ns, 100 ns

The block diagram of CPU and memory circuits is shown in Fig. 3-2.

- 4 -

RS232C I/F Centronics

I/F

LED Head

Dram Motor Driver

Power supply (SSIO)

Sensor

Ope-Pane EEPROM

(MHM2029-003K-41)

CPU

HIOCLK SUBINT,SUBRDY

CADR [1-24]

CDATA [0-31]

CRD CWR

CRAS[0-5] CCAS[0-3]

(SSIO)

IOS1

CADR [2-22] CDATA

[0-31] CS0 CRD

RAS0 CAS[0-3]

(LZ9FF22) Sub Chip

Sensor Power supply :THERMCMP,PSOUT 1st tray paper size detection Hopping motor driver Clutch driver Duplex(SSIO) Option(Multi/2nd/3nd)(SSIO) DRAM SIMM :PD FLASH SIMM :BSY0

OKI HSP NIC :CURST,OPDCT[0-3]

ROM(6MB:24Mbit MASK *2)

RAM(4MB:16Mbit DRAM *2)

Connected to theCPU

CUREQ MUPISINT MUPISRDY

RAS[2-5] CAS[0-3]

CS3

CS6

SIMM(For DRAM*2)

PD

SIMM(For PSMASKROM or FLASHROM)

BSY0

OKI HSP NIC

Connected to the LSI

CURST OPDCT[0-3]

Figure 3-2 Block Diagram of CPU & Memory

- 5 -

3.3 Reset Control

When power is turned on, a RESET-N signal is generated by the rising sequence of +8V power supply.

+8V

D1 (4.3V)

R33

4.3K

Ω

R26

2.2K

Ω

R32 430K

D501

R28 240K

Ω

+5V

R89 68K

IC20

3

+

2

–

UPC393

Ω

C35

0.22

µ

F

+5V

Ω

R508

3.3K

Ω

TR504

3

1

2

R509

3.3K

Ω

RESET-N 72

IC1

(MHM2029K)

ETC

+8V

IC20 UPC393

INPUT

IC20 UPC393

1 pin

RESET-N

+5V

Power ON

Power OFF

2 pin

3 pin

- 6 -

3.4 EEPROM Control

The NM93C46LN is an electrical erasable/programmable ROM of 64-bit x 16-bit configuration and the NM93C66N is an electrical erasable/programmable ROM of 256-bit x 16-bit configuration. Data input to and output from the ROM are bidirectionally transferred in units of 16 bits through a serial I/O port (SERIALDATA-P) in serial transmission synchronized with a clock signal from the CPU (IC1).

IC1

(MHM2029K)

SERIALDATA-P

154

EEPRMCS0-P

150

EEPRMCS1-P

165

EEPRMCLK-P

151

NM93C46LN

3

DI DO

1

CS

2

NM93C66N

3

DI DO

1

CS

2

SK

(PS SIMM)

4

IC19 (AAA-PCB)

4

The EEPROM operates in the following instruction modes

Instruction Start Bit

Operation

Code

NM93C46LN

Address

NM93C66N

: Option

Data

Read (READ) Write Enabled (WEN) Write (WRITE) Write All Address (WRAL) Write Disabled (WDS) Erase Chip Erasable (ERAL)

1 1 1 1 1 1 1

10 00 01 00 00 11 00

A5 to A0

11XXXX 11XXXXXX

A5 to A0 A7 to A0

01XXXX 01XXXXXX 00XXXX 00XXXXXX

A5 to A0 A7 to A0

10XXXX 10XXXXXX

A7 to A0

D15 to D0 D15 to D0

- 7 -

CS SK

CS

SK

DI

DO

Write cycle timing (WRITE)

101

HIGH-Z

A5/A7

Read cycle timing (READ)

A4/A6

A1 A0 D15

D14

Min. 450 ns

STATUS

D1 D0

Max. 500 ns

BUSY READY

Max. 10 ms

DI DO

HIGH-Z

11 0

A5/A7 A4/A6

A1 A0

A5/A7

A4/A6

D1 D00

- 8 -

3.5 Centronics Parallel Interface

The CPU (IC1) sets a BUSY-P signal to ON at the same time when it reads the parallel data (CENTDATA1-P to CENTDATA8-P) from the parallel port at the fall of STB-N signal. Furthermore, it makes the store processing of received data into a receive buffer terminate within a certain fixed time and outputs an ACK-N signal, setting the BUSY-P signal to OFF.

87, 88, 91 to 96

IC1

(MHM2029K)

97

85

86

83

81

79

80

82

84

CENTDATA1-P to CENTDATA8-P

STB-N BUSY-P

ACK-N

PE-P

SEL-P

FAULT-N

IPRIME-N

SELIN-N

AUTOFEED-N

IC17

2 to 9

11

10

12

13

32

31

36

+5V 14

CENT

DATA8-P DATA1-P STB-N

1

BUSY-P

ACK-N PE-P

SEL-P

FAULT-N

IPRIME-N SELIN-N AUTOFEED-N

to

CENTDATA 1~8-P

STB-N

BUSY-P

ACK-N

0.5 µs min.

0.5 µs max.

0 min.

10 µs max.

+5V

18

FU1

1A

0.5 µs min.

0 min.

- 9 -

3.6 RS232C Interface

The serial data RXD from the host system, whose line voltage is clamped at the TTL level by D502/ D503, are received by the CPU built-in serial controller. DSR, CTS and CD are not connected. Send signals TXD, RTS and DTR are put out from the CPU and are sent to lines through a line driver IC (75188).

CPU

RXD-N

101

108 102

103

TXD-P RTS-N DTR-N

D502

+5V

RS232C

D503

3.3K

2

75188

4

IC18

9

3 6 8

Idle

Idle Idle

Idle

20

RXD

3

DSR

6

CTS

5

CD

1

TXD

2

RST

4

DTR SSD

9

14 1

+8V -8V

(1) Send signal level (2) Receive signal level

Input 0V

Output 0V

TTL level

Input 0V

+8V

- 8V Output 0V

+8V

- 8V

TTL level

- 10 -

3.7 Operator Panel Control

The operator panel consists of the following circuits.

AAA- PCO-

IC1

(MHM2029K)

SERIALDATA-P 154

PDATAIN-P 158

PSCLK-N 153

PLD-N 152

3 4

6

1

Flexible

Cable

CN1PANEL

4

3

1 6

(1) BU6152S (LSI)

This LSI is connected to a clock synchronous serial port of the CPU (IC1). It controls switch data input, LED data output and LCD data input/output according to the commands given by the CPU. The CPU sends the 2-byte (16-bit) command (SERIALDATA-P) together with the shift clock signal (PCLK-N) to the LSI and then makes a predetermined input/output control if the command decoded by the LSI is found to be a normal command.

BU6152S

LSI

DB4~DB7

RS R/W

E

LED

44780 LCD Control Driver

Zebra Rubber

LCD

On receiving a command sent from the CPU, the LSI, synchronizing with the serial clock of the command, returns a 2-byte command response to the CPU.

SERIALDATA-P

PSCLK-N

PDATAIN-P

PLD-N

bit 0 bit 15

Command

bit 0

Command response

bit 15

- 11 -

3.8 LED Head Control

AAA-

IC1

(MHM2029K)

181

180

144

143

HDCLK-P

142

HDDLD-P

139

HDSTB4-N

135

HDSTB3-N

136

HDSTB2-N

137

HDSTB1-N

138

HDD3-P

HDD2-P

HDD1-P

HDD0-P

HEAD 1

10

11

7

8

13

5

1

2

3

4

LED Head

EEPROM

5

4

8

7

2

10

14

13

12

11

Driver IC Driver IC

38

Data is transferred to the head unit starting with the data at the left end of the paper in the synchronous serial transfer mode using the HDCLK-P signal as the sync signal.

The total number of LEDs in the head unit is 4992. The data for the driver latches causes the corresponding LEDs to light only during the time when the HDSTBn-N signal is output. There are four HDSTBn-N signals (HDSTB1-N, HDSTB2-N, HDSTB3-N, and HDSTB4-N), each of which controls the corresponding driver for 1248 LEDs (4992/4).

The four HDSTBn-N signals must be output within the time when the LEDs for one line continue to emit light. After the data is moved to the latches by the HDSTBn-N signal, the transfer of the data of the next line can be started.

- 12 -

The timing chart for the outline of this operation is shown below.

HDCLK-P HDD0-P

HDD1-P HDD2-P

1

59 2 6 10 4986 4990 3

11 4987 4991

7

4985

4989

✰

The LED lights when the head data is HIGH.

HDD3-P

HDCLK-P HDD0-P

HDD1-P HDD2-P

HDD3-P

HDDLD-P HDSTB1-N

HDSTB2-N HDSTB3-N HDSTB4-N

4 8 12 4988 4992

Each figure denotes the dot position taking the left end bit position as "1".

Print activation timing for the 1st line

LEDs

1-2496

lit

LEDs

2497-4992

lit

Print activation timing for the 2nd line

Print activation timing for the final line

- 13 -

3.9 Motor Control

OKIPAGE20 controls the paper flow by two motors (main motor & hopping motor) and two clutches (clutch for feeding roller and clutch for regist roller).

(1) Main motor

The main motor is driven by the driver IC according to the control signal from the CPU (IC1: MHM2029K).

DMON-N

DMPH1-P

DMPH2-P

Rotation

AAA-PCB

IC1

(MHM2029K)

T0 T1 T2 T3

DMPH1-P

132

DMPH2-P

131

DMON-N

127

13

8

7, 14

Forward rotation

MAIN

(A2918)

1

17

2

4

MOTOR

1

2

3

4

Main

Motor

M

Reverse rotationStop

Operation at normal speed: T0 to T3 = 703

µ

s

- 14 -

(2) Hopping motor

The hopping motor is driven by the driver IC according to the control signal from the LSI (IC2: LZ9FF22).

HMON-N

HMPH1-P

HMPH2-P

Rotation

AAA-PCB

IC2

(LZ9FF11)

T0 T1 T2 T3

HMPH1-P

57

HMPH2-P

58

HMON-N

75

13

8

7, 14

Forward rotation

HOPPING

(A2918)

FRONT

1

2

17

3

2

4

Hopping

Motor

M

JackIn connector (22P)

Reverse rotationStop

Operation at normal speed: T0 to T3 = 918

µ

s

(3) Clutch for feeding roller and clutch for regist roller

Clutch for feeding roller and clutch for regist roller are driven by the driver IC according to the control signal from the LSI (IC2: LZ9FF22).

AAA-

IC2

(LZ9FF22)

PWM1-P

74

PWM2-P

59

+5VD

0V

TR505

TR506

TR1

TR2

+38V

0VP

CLH

1

2

3

CLR

1

2

Clutch for feeding roller

Clutch for regist roller

- 15 -

3.10 Fuser Temperature Control

For the temperature control by heater control, the variation in the resistance of the thermistor is A/ D converted in and the resultant digital value is read and transferred to the CPU. The CPU turns on or off the HEATON-N signal according the value of the signal received from to keep the temperature constant.

Immediately after the power is turned on, the thermistor is checked for shortcircuit and breakdown. If the thermistor is shorted, the A/D converted value shows an extremely high temperature, so that the shortcircuit can be detected. If the breakdown of the thermistor occurs, the A/D converted value shows the normal temperature. In this case, the thermistor breakdown can be detected by the sequence shown at the end of this section. If the heater is overheated, 5V supply is turned off by detecting that the resistance of the thermistor exceeds the predetermined value.

Thermistor

Heater

Thermostat

CN8

1

2

CN2

1 2

Power Supply Board

5V

36

Thermistor breakdown

detector

circuit

5V

PC1

AAA-

IC1 IC1

(MHM2029K)

Power supply

interface

ACIN

HEATON-N

116

TR5

+5VD

+5V

TR4

- 16 -

The temperature control is described below.

Vt

Temperature

˚C

V2

V1

ON OFF ON OFF ONHEATON-N

V2 192˚C V1

169˚C

* The values V1 and V2 vary according to setting mode.

(Standard paper : MEDIA TYPE = MEDIUM)

When Vt rises to V2 or more, the heater is turned off (by setting HEATON-N signal to HIGH). When Vt drops to V1 or less, the heater is turned on (by setting HEATON-N signal to LOW). In this way, the temperature can be kept within the predetermined range.

- 17 -

To detect the breakdown of the heater, the heater is turned on. If the corresponding temperature rise is not detected, it is judged that heater breakdown occurs. To shorten the breakdown detecting time, the following circuit is used. When the thermistor is checked for breakdown immediately after the power is turned on, the THERMCHK-N signal is turned on to turn transistor Q5 off. As a result, the thermistor serial resistance is varied to increase the reading resolution.

5V

Thermistor

A/D

converter

5V

THERMCHK-NFROM IC2 (LZ9FF22)

- 18 -

3.11 Fan Motor Control

The stop/rotation of the fan motor is controlled by a FANON-P signal. When the fan motor rotates normally, a FANALM-N signal generated in the hole element built in the fan motor is input to the CPU.

AAA-

IC1

(MHM2029K)

FANON-P FANALARM-N

IC17

QC

109

FANALARM-N

110

+5VD

FANON-P

Power Supply Board

+38V

FAN Motor

M

1 sec max

0.7 sec max

FAN MOVE

Lock

- 19 -

Fan motor start:Initial request, heater on, print start request Fan motor stop: • The motor immediately stops when an engine error or a fan error occurs.

• The motor stops 30 seconds after the occurrence of a paper jam, size error, or fuse error.

• The motor stops in the power save mode as below.

Main motor

Heater control

Fan motor

ON

Heater

hold time

8 min.

or 0 min.

Rotation state

OFF

OFFON

30 sec.

Stop state

- 20 -

3.12 Sensor Supervision

OKIPAGE20 unit is provided with 11 sensors. The signals of Toner sensor and Inlet sensor 2 among these sensors are read through the Power supply interface. Other sensor signals are read directly from the input ports of CPU (IC1: MHM2029K) and LSI (IC2: LZ9FF22). Also, regarding Inlet sensor 1 signal, Paper sensor signal and Outlet sensor signal, their changed status can be notified as a CPU interruption. In addition, these three signals can be read through the Power supply interface.

to Duplex unit

to

2nd/3rd paper feeder

and Multi feeder

AAA-PCB

81

IC20

164 120

IC2

(LZ9FF22)

IC1

(MHM2029K)

15to18

21

80

73

123

1st tray

PXCPCB

Power supply board

Paper size sensor board

Paper end sensor

Paper low sensor

LSI

Outlet sensor

Paper sensor

Inlet sensorl

Power supply interface

121

160

159

- 21 -

Inlet sensor2

Toner sensor

Front feeder

Paper end sensor

Home position sensor

Stacker cover

Stacker full sensor

3.13 Cover Open

When the cover is opened, a cover open microswitch is opened. This makes a XCOVEROPENN signal low, then off the +5VD, thereby the CPU detects the open state. Furthermore, opening the cover stops applying a +38V power to the high voltage power supply unit, resulting in stopping all high voltage outputs.

AAA-

CPU

+5V

125

+5VD

COVEROPEN-N

+5VD

0V

Power Supply Board

+38V

COVEROPEN-N

Cover Open Microswitch

+38V

Cover close Cover open

Low Voltage

Supply Unit

Power

High

Voltage

Power Supply

Unit

High

voltage

output

- 22 -

3.14 Power Supply Interface

The power supply interface is a 16 bit clock synchronous serial interface between the synchronous serial I/O ports of CPU (IC1: MHM2029K) and the power control LSI in the power supply board (High voltage) under the control of the CPU (IC1: MHM2029K).

When the control section transmits a command on POWTXD-P signal in synchronization with the clock (POWSCLK-N) to the power supply board, this power supply board transmits a response on POWRXD-P signal in synchronization with the same clock to the control section.

The commands include the control data of the high-voltage power supply, etc. The responses include sensor information, fuser unit temperature information, etc.

AAA-PCB Power Supply Board

POWTXD-P

POWSCLK-N

POWRXD-P

POWLD-N

IC1

(MHM2029K)

Power Supply Board (120V or 230V)

POWER CN3 CN6 CN7

POWTXD-P

112

POWSCLK-N

111

POWRXD-P

119

POWLD-N

115

LSB

b0 b1 b2 b3 b4 b5 b6 b7 b8 b9 b10 b11 b12 b13 b14 b15

3

2

4

1

11 12 10 13

Command

Response

(High voltage)

22

11

2

12

25

10

1

13

LSI

MSB

- 23 -

3.15 Option (2nd/3rd paper feeder and Multi feeder) Interface

The option interface is a 8 bit clock synchronous serial interface between the synchronous serial I/O ports of LSI (IC2: LZ9FF22) and 4 bit micro-controllers in the option control boards under the control of the CPU (IC1: MHM2029K). First the control section transmits a command on OPDATA-P signal in synchronization with the clock (OPSCLK-N) to the option. The option which receives the command will analyze it and assert OPSDR-N signal after becoming a ready state for returning a response. When the control section recognizes the OPSDR signal asserted, it will output a clock signal only at this time. The option will output a response on the OPDATA-P signal line in synchronization with this clock signal (OPSCK-N). The commands include the control data, etc. The responses include sensor information, etc.

Jackln connector (14P)

CN1

5

6

4

AOLE-PCB (Multi feeder)

AAA-PCB

IC1

(MHM2029K)

IC2

(LZ9FF22)

82

OPDATA-P

84

OPSCLK-N

83

OPSDR-N

Jackln connector (22P)

ENVELOPE

3

2

4

Control circuit

2NDTRAY

3

2

4

Jackln connector (14P)

BBB-PCB (2nd paper feeder)

MAIN1

3

2

4

MAIN2

3

2

4

BBB-PCB (3rd paper feeder)

MAIN1

3

2

4

Control circuit

OPDATA-P

OPSCLK-N

OPSDR-N

COMMAND RESPONSE

b0 b1 b2 b3 b4 b5 b6 b7 b0 b1 b2 b3 b4 b5 b6 b7

- 24 -

3.16 DUPLEX Interface

The Duplex interface is a 8 bit clock synchronous serial interface between the synchronous serial I/O ports of LSI (IC2: LZ9FF22) and 8 bit micro-controllers in the option control boards under the control of the CPU (IC1: MHM2029K). First the control section transmits a command on DUPDATA-P signal in synchronization with the clock (DUPSCLK-N) to the Duplex unit. The Duplex unit which receives the command will analyze it and assert OPSDR-N signal after becoming a ready state for returning a response. When the control section recognizes the OPSDR signal asserted, it will output a clock signal only at this time. The Duplex unit will output a response on the OPDATA-P signal line in synchronization with this clock signal (OPSCK-N). The commands include the control data, etc. The responses include sensor information, etc.

AAA-PCB

IC1

(MHM2029K)

IC2

(LZ9FF22)

86

DUPDATA-P

88

DUPSCLK-N

87

DUPSDR-N

DUP

9

8

11

Jackln connerctor (14P)

LEX-PCB (Duplex unit)

MAIN

9

8

11

Control circuit

DUPDATA-P DUPSCLK-N DUPSDR-N

COMMAND RESPONSE

b0 b1 b2 b3 b4 b5 b6 b7 b0 b1 b2 b3 b4 b5 b6 b7

- 25 -

3.17 Power Supply Board

The power supply circuit consists of the low-voltage power supply circuit and the high-voltage power supply circuit. The low-voltage power supply circuit adopts a switching power supply system and provides DC voltages required for the control of the equipment. The high-voltage power supply circuit receives +38V power from the low-voltage power supply circuit and provides various high voltages required for the electrophotographic process according to the control signals from the control section.

(1) Low-voltage power supply circuit

SW

F2

Noise

filter

ACIN

circuit

Switching

circuit

Rectifying/

smoothing/

regulating

circuit

+8V –8V

+5V +3.3V

POW ON

+ 5V + 3.3V

+ 38V

+ 8V – 8V

Switching

control

circuit

Overvoltage/

overcurrent

detector

circuit

Rectifying/

smoothing/

regulating

circuit

+38V

- 26 -

(2) High-voltage power supply circuit

This high-voltage power supply circuit receives the high-voltage generation timing control command that is transmitted in serial through the power supply interface from the control section. It decodes this command by LSI (IC1) and outputs high-frequency pulses to the corresponding high-voltage generating circuits through pins 12, 13, 14, 15, 16, 17 and 18 of LSI (IC1). It supplies +38V to each high-voltage generating circuit as the source voltage. When the cover is open, the supply of +38V is interrupted to interrupt all the high-voltage outputs. The relationship between the high-frequency pulse output pins and the high-voltage outputs is shown in the following table.

Power Supply Board (High voltage)

+38V

CPU

Power supply

interface

LSI

14

16

12 17

11 15

DB+

DB–

CB

TR

SB DB

CB

TR

High-voltage

High

-frequency pulse output pins

outputs

11 12 13 14 15 16

-450V 17 18

CC : Constant Current CV : Constant Voltage

13

18

SB DB TR CH CL

CB

CH

CL

CC : 0~20µA CV : 0~5KV

+450V

-1.3KV

0V

+300V

-1.3KV

-220V

-1.35KV CC : -15

Part with slant line: no output

CH

CL

µ

A

- 27 -

4. TROUBLESHOOTING

4.1 Troubleshooting Table

(A) Power/sensor board

Note:

The malfunction of the power supply is not repaired by an agency. The abnormality to be treated here is taht of sensors only.

Failure LCD Message

A paper input jam occurs frequently.

A paper feed jam occurs frequently.

A paper-exit jam occurs frequently.

A paper size error occurs frequently.

The message "COVER OPEN" remains displayed on the LCD.

The message "TONER LOW" remains displayed on the LCD.

PAPER INPUT JAM CHECK ******

PAPER FEED JAM CHECK ******

PAPER EXIT JAM REMOVE THE PAPER

ERROR PAPER SIZE CHECK ******

COVER OPEN

TONER LOW

Flowchart

No.

A - 1

A - 2

A - 3

A - 4

A - 5

A - 6

The message "TONER SENSOR" remains displayed on the LCD.

A toner sensor error occurs frequently.

A thermistor open error occurs frequently.

A thermistor short error occurs frequently.

TONER SENSOR

ERROR 77

ERROR 72

ERROR 73

- 28 -

A - 7

A - 8

A - 9

(B) Main control board (AAA-) (1/3)

Failure LCD Message

Abnormal message display on the LCD (no display, unclear display, display with some dot not lit).

Program ROM error

Resident RAM error

EEPROM error

Option ROM error

ERROR 10

ERROR 30

ERROR 40

ERROR 50

ERROR 51

Flowchart

No.

B - 1

B - 2

B - 3

B - 4

B - 5

B - 6Flash SIMM error

Option RAM error

Cooling fan error

Thermistor open error

SSIO error

Opepanel I/F time out error

Option tray I/F timeout error

Duplex I/F timeout error

ERROR 60

ERROR 70

ERROR 72

ERROR 74

ERROR 80

ERROR 81

ERROR

B - 7

B - 8

B - 9

B - 10

B - 11

B - 12

B - 13

83

- 29 -

(B) Main control board (AAA-) (2/3)

Failure LCD Message

Watchdog timer timeout

Program error

Processor error

Cover open occurs frequently

Paper input JAM occurs

ERROR 90

ERROR F*

ERROR CONTROLLER 0*

COVER OPEN

PAPER INUT JAM CHECK ******

PAPER FEED JAM CHECK ******

Flowchart

No.

B - 14

B - 15

B - 16

B - 17

B -18

B - 19Paper feed JAM occurs

DUPLEX input JAM occurs

DUPLEX feed JAM1 occurs

Paper size error occurs

The message "STACKER FULL REMOVE THE PAPER" remains displayed on the LCD

The message "PAPER OUT ******** TRAY1" remains displayed on the LCD

The message "PAPER NEAREND T1" remains displayed on the LCD

The message "TONER SENSOR" remains displayed on the LCD

DUPLEX INPUT JAM REMOVE THE PAPER

DUPLEX FEED JAM1 REMOVE THE PAPER

ERROR PAPER SIZE CHECK ******

STACKER FULL REMOVE THE PAPER

PAPER OUT ******** TRAY1

PAPER NEAREND T1

TONER SENSOR

B - 20

B - 21

B - 22

B - 23

B - 24

B - 25

B - 26

- 30 -

(B) Main control board (AAA-) (3/3)

Failure LCD Message

Data sent through the centronics I/F cannot be received

Data sent through the RS232C I/F cannot be received

(C) Operator panel board (PCO-)

Failure LCD Message

Abnormal message display on the LCD (no display, display with some dot not lt, etc.)

The key switch operation on the operator panel is disabled.

Flowchart

No.

B - 27

B - 28

Flowchart

No.

C - 1

C - 2

(D) Cassette switch board (PXC-)

Failure LCD Message

Paper size error occurs

ERROR PAPER SIZE CHECK TRAY1

Flowchart

No.

D - 1

- 31 -

4.2 Troubleshooting Flowchart

A-1 A paper input jam occurs frequently.

• Is PC3 (Inlet Sensor 1) operating normally?

• No Replace PC3.

▼

• Yes Is PC5 (Inlet Sensor 2) operating normally?

• No Replace PC5.

▼

• Yes Failure of IC1.

A-2 A paper feed jam occurs frequently.

• Is PC3 (Inlet Sensor 1) operating normally?

• No Replace PC3.

▼

• Yes Is PC5 (Inlet Sensor 2) operating normally?

• No Replace PC5.

▼

• Yes Is PC2 (Paper Sensor) operating normally?

• No Replace PC2.

▼

• Yes Is PC501 (Outlet Sensor) operating normally?

• No Replace PC501.

▼

• Yes Failure of IC1.

A-3 A Paper exit jam occurs frequently.

• Is PC501 (Outlet Sensor) operating normally?

• No Replace PC501.

▼

• Yes Failure of IC1.

A-4 A paper size error occurs frequently.

• Is PC3 (Inlet Sensor 1) operating normally?

• No Replace PC3.

▼

• Yes Is PC5 (Inlet Sensor 2) operating normally?

• No Replace PC5.

▼

• Yes Failure of IC1.

- 32 -

A-5 The message "COVER OPEN" remains displayed on the LCD.

• Replace Cover Open Switch.

A-6 The message "TONER LOW" remains displayed on the LCD.

• Is PC6 (Toner Sensor) operating normally?

• No Replace PC6.

▼

• Yes Failure of IC1.

A-7 The message "TONER SENSOR" remains displayed on the LCD.

A toner sensor error occurs frequently.

• Is PC6 (Toner Sensor) operating normally?

• No Replace PC6.

▼

• Yes Failure of IC1.

A-8 A thermistor OPEN error occurs frequently.

• Is the heater lamp lit?

• No Failure of PC1 (photocoupler)

▼

• Yes Failure of IC1

A-9 A thermistor short error occurs frequently.

• Failure of IC1

- 33 -

B-1 Abnormal message display on the LCD.

• Replace IC5–IC8.

▼

• OK?

▼

• No Is the 10.1376 MHz clock signal being put out to pin 1 of OSC1?

• No Replace OSC1.

▼

• Yes Is the output at pin 3 (RESET-N) of TR504 (DTC114EK) normal? (Refer to [3.3 Reset Control] page 7.)

• No Replace TR504 (DTC114EK).

▼

• OK?

▼

• No Replace IC20 (UPC393G2).

▼

• Yes Failure of IC1 (MHM2029K)

B-2 Program ROM error (ERROR10)

• Replace IC5–IC8.

B-3 Resident RAM error (ERROR 30)

• Are negative pulses being put out to Pin 14 (RAS0-N) of IC3, IC4?

• No Are negative pulses being put out to Pin 33 (CRAS0-N) of IC2

(LZ9FF22)?

• No Failure of IC1 (MHM2029K)

▼

• Yes Failure of IC2 (LZ9FF22)

▼

• Yes Are negative pulses being put out to Pins 30, 31 (CAS0-N, CAS2-N, CAS1-N, CAS3-N) of IC3, IC4?

• No Are negative pulses being put out to Pins 71, 70, 69, 68 (CCAS0-N,

CCAS1-N, CCAS2-N, CCAS3-N) of Q13 (MHM2029K)?

• No Failure of IC1 (MHM2029K)

▼

• YES Replace IC16 (74ALS244).

▼

• Yes Replace IC3, IC4.

B-4 EEPROM error (ERROR 40)

• Replace IC19 (93LC46A).

▼

• OK?

▼

• No Failure of IC1 (MHM2029K)

- 34 -

B-5 Option ROM error (ERROR 50)

• Replace PostScript SIMM.

▼

• OK?

▼

• No Failure of IC1 (MHM2029K)

B-6 Flash SIMM error (ERROR 51)

• Replace Flash SIMM.

▼

• OK?

▼

• No Failure of IC1 (MHM2029K)

B-7 Option RAM error (ERROR 60)

• Are negative pulses being pin out to Pins 33, 34, 44, 45 (RAS2-N, RAS3-N, RAS4-N,

RAS5-N) of SIMM1, SIMM2?

• No Are negative pulses being put out to Pin 34, 35, 36, 37 (CRAS2-N, CRAS3-N, CRAS4-N, CRAS5-N) of IC2 (LZ9FF22)?

▼

• Yes Failure of IC2 (LZ9FF22)

▼

• No Failure of IC1 (MHM2029K)

▼

• Yes Replace SIMM.

B-8 Cooling fan error (ERROR 70)

• Is the fan rotating?

• No Is +38V power being supplied to Pin 1 (FAN POW) of Connector (CN5) in Power supply board (120V or 230V)?

• No Is the output at Pin 22 (FANON) of Connector (Power) being

▼

• Yes Replace Power supply board (120V or 230V).

▼

• Yes Replace the fan.

at high level?

• No Is the output at Pin 109 (FANON-P) of IC1 (MHM2029K) being at high level?

• No Failure of IC1 (MHM2029K)

• Yes Replace IC17 (74LS07).

▼

• Yes Is the output at Pin 21 (FANALARM) of Connector (Power) being at high level?

• No Failure of IC1 (MHM2029K)

▼

• Yes Replace the fan.

- 35 -

B-9 Thermistor OPEN error (ERROR 72)

• Is the heater lamp lit?

• No Is pin 6 of the connector (power) in the OFF state (High level)?

• No Failure of the heater or the Power supply board

▼

• Yes Is pin 3 of TR4 (transistor) in the OFF state (High level)?

• No Replace TR4 (transistor).

▼

• Yes Is pin 3 of TR5 (transistor) in the OFF state (Low level)?

• No Replace TR5 (transistor).

▼

• Yes Failure of IC1 (MHM2029K)

▼

• Yes Failure of the Power supply board (120V or 230V)

B-10 SSIO error (ERROR 74)

• Are POWTXD-P (Power connector-3), POWSCLK-N (Power connector-2) and POWLDN (Power connector-1) operating normally?

• No Replace IC1 (MHM2029K).

▼

• Yes Failure of the Power supply board (High voltage)

B-11 Opepanel I/F Timeout error (ERROR 80)

• Is the connection of connector (PANEL) properly?

• No Replace connector (PANEL).

▼

• Yes Failure of IC1 (MHM2029K)

B-12 Option tray I/F Timeout error (ERROR 81)

• Is the connection of connector (2nd tray) properly?

• No Replace connector (2nd tray).

▼

• Yes Is the connection of connector (envelope) properly?

• No Replace connector (envelope).

▼

• Yes Failure of IC2 (LZ9FF22)

- 36 -

B-13 Duplex I/F timeout error (ERROR 83)

• Is the connection of connector (DUP) properly?

• No Replace connector (DUP).

▼

• Yes Failure of IC2 (LZ9FF22)

B-14 Watchdog timer timeout (ERROR 90)

• Replace IC5–IC8.

▼

• OK?

▼

• No Failure of IC1 (MHM2029K)

B-15 Program error (ERROR F*)

• Replace IC5–IC8.

▼

• OK?

▼

• No Failure of IC1 (MHM2029K)

B-16 Processor error (ERROR 0*)

• Replace IC5–IC8.

▼

• OK?

▼

• No Failure of IC1 (MHM2029K)

B-17 Cover OPEN occurs frequently.

• Is the signal at Pin 125 (+5VD) of IC1 (MHM2029K) being at low level?

• Yes Is the signal at Pin 7 of Connector (Power) being at high level (30V)?

• No Failure of an element other than AAA-PCB

▼

• Yes Is the signal at Pin 3 of TR503 being at low level?

• No Replace TR503.

▼

• Yes Is the signal at Pin 3 of TR501 being at high level?

• No Replace TR501.

▼

• Yes Failure of IC1 (MHM2029K)

▼

• No Failure of IC1 (MHM2029K)

- 37 -

B-18 PAPER INPUT JAM occurs.

• Is the hopping motor rotating normally?

• No Are the normal waveforms of the HMPH1-P, HMPH2-P and HMON-N

signals as shown in section 3.9 (2) output to pins 13, 8 and 7, 14 of HOPPING (A2918) respectively?

• No Failure of IC2 (LZ9FF22)

▼

• Yes Is the voltage at Pin 5 of HOPPING (A2918) +38V?

• No Is there the continuity in Fuse FU4?

▼

• Yes Failure of Power supply board (120V or 230V)

▼

• Yes Is the voltage at pin 1, 2, 4 and 17 of HOPPING (A2918) +38V?

• No Replace HOPPING (A2918).

▼

• Yes Failure of Hopping motor

▼

• Yes Is the feeding roller rotating normally?

• No Replace FU4.

• No Does the 2 pin of TR505 is change to High level during the hopping

roller is rotating?

• No Failure of IC2 (LZ9FF22)

▼

• Yes Does the 3 pin of TR1 change to Low level during the hopping motor

is rotating?

• No Replace TR 505.

▼

• Yes Does the 2 pin of TR1 change to High level (+38V) during the hopping

roller is rotating?

• No Replace TR1.

▼

• Yes Failure of clutch

▼

• Yes Can a paper reach the Inlet sensor?

• No Failure of mechanical parts

▼

• Yes Failure of Power supply board (High voltage)

- 38 -

B-19 Paper feed JAM occurs

• Is the registration roller normally rotating for paper feed?

• No Does the 2 pin of TR 506 change to High level for paper feed?

• No Failure of IC2(LZ9FF22)

▼

• Yes Does the 3 pin of TR2 change to Low level for paper feed?

• No Replace TR506.

▼

• Yes Does the 2 pin of TR2 change to High level (+38V) for paper feed?

• No Replace TR2.

▼

• Yes Does the connector (CLR) have any trouble? (Carry out a connection check towards the connection cord and connector at the same time.)

• No Replace the connector (CLR).

▼

• Yes Failure of clutch

▼

• Yes Can a paper reach the Paper sensor?

• No Failure of mechanical parts

▼

• Yes Is Paper sensor signal normally input to the 123 pin of the IC1(MHM2029K)?

• No Does the connector (POWER) have any trouble? (Carry out a connection check towards the connection cord and connector at the same time.)

• No Replace the connector (POWER).

▼

• Yes Failure of Power supply board (High voltage)

▼

• Yes Failure of IC1 (MHM2029K)

- 39 -

B-20 Duplex input JAM occurs

• Are papers fed to the Duplex unit normally?

• No Are paper sensor signals normally output to the 12 pin of the connector (DUP)?

• No Replace IC20.

▼

• Yes Does the connector (DUP) have any trouble? (Carry out a connection check towards the connection cord and connector at the same time.)

• No Replace the connector (DUP).

▼

• Yes Failure of Duplex unit or Connection Code-Wire

▼

• Yes Failure of Duplex unit

B-21 Duplex feed JAM 1 occurs

• Is the Duplex unit motor rotating after a paper is fed into the Duplex unit.

• No Are Outlet sensor signals normally input to the 7 pin of the connector (DUP)?

• No Are Outlet sensor signals normally input to the 8 pin of the

▼

• No Does the connector (POWER) have any trouble?

▼

• Yes Failure of Power supply board (High voltage) or Connection

▼

• Yes Does the connector (DUP) have any trouble? (Carry out a connection check towards the connection cord and connector at the same time)

• No Replace the connector (DUP)

▼

• Yes Failure of Duplex unit or Connection Code-Wire

▼

• Yes Failure of Duplex unit

connector (POWER)?

• Yes Failure of IC2 (LZ9FF22)

(Carry out a connection check towards the connection cord and connector at the same time)

• No Replace connector(POWER)

Code-Wire.

- 40 -

B-22 PAPER SIZE ERROR occurs.

• Do the output signals (PAPER SIZE 0 to 3 -N) at pins 15, 16, 17 and 18 of IC2 (LZ9FF22) comply with the following table?

Paper size Pin 15

Letter Executive A4 Legal 14 Legal 13 B5 A5

L L L H H H H

Pin 16

H H L H L H H

Pin 17

H L H H H L L

Pin 18

H H H L H H L

• No Check to see if the paper size SW of the paper tray is set properly.

▼

• Yes Failure of IC2 (LZ9FF22)

B-23 The message "STACKER FULL REMOVE THE PAPER" remains displayed on the LCD.

• Is the output signal (STKFULL-P signal) at pin 159 of IC1 (MHM2029K) being at low level?

• No Check the stacker full sensor.

▼

• Yes Failure of IC1 (MHM2029K)

- 41 -

B-24 The message "PAPER OUT ******** TRAY1" remains displayed on the LCD

• Is there any change in signal (PAPEREND-N) at the pin 21 of the IC2 (LZ9FF22) when

moving the Paper end sensor lever?

• No Does the connector (END) have any trouble? (Carry out a connection check towards the connection cord and connector at the same time.)

• No Replace the connector (END)

▼

• Yes Failure of Paper end sensor or Connection Cord-Wire

▼

• Yes Do the output signals (PAPERSIZE0 to 3 -N) at pins 15, 16, 17 and 18 of IC2 (LZ9FF22) comply with the following table?

Paper size Pin 15

Letter Executive A4 Legal 14 Legal 13 B5 A5

L L L H H H H

Pin 16

H H L H L H H

Pin 17

H L H H H L L

• No Does the connector (SIZE) have any trouble?

(Carry out a connection check towards the connection cord and connector at the same time.)

• No Replace the connector (SIZE).

▼

• Yes Failure of Paper size sensor board (PXC-PCB) or paper size SW of the

paper tray

▼

• Yes Failure of IC2 (LZ9FF22)

B-25 The message "PAPER NEAREND T1" remains displayed on the LCD

Pin 18

H H H L H H L

• Is there any change in signal (PAPERLOW-N) at the 80 pin of the IC2 (LZ9FF22)?

• No Does the connector (LOW) have any trouble?

(Carry out a connection check towards the connection cord and connector at the same time.)

• No Replace the connector (LOW)

▼

• Yes Failure of Paper nearend sensor or Connection Cord-Wire

▼

• Yes Failure of IC2 (LZ9FF22)

- 42 -

B-26 The message "TONER SENSOR" remains displayed on the LCD

• Is the main motor rotating normally?

• No Are the normal waveforms of the DMPH1-P, DMPH2-P and DMON-N signals as shown in section 3.9(1) output to pins 7, 8, 13 and 14 of MAIN (A2918) respectively?

• No Failure of IC1 (MHM2029K)

▼

• Yes Is the voltage at pin 5 of MAIN (A2918) +38V?

• No Is there the continuity in Fuse FU3?

• No Replace FU3.

▼

• Yes Failure of Power supply board (120V or 230V)

▼

• Yes Is the voltage at pin 1, 2, 4 and 17 of MAIN (A2918) +38V?

• No Replace MAIN (A2918).

▼

• Yes Does the connector (MOTOR) have any trouble? (Carry out a connection check towards the connection cord and connector at the same time.)

• No Replace the connector (MOTOR).

▼

• Yes Failure of Main motor

▼

• Yes Does the connector (POWER) have any trouble? (Carry out a connection check towards the connection cord and connector at the

same time.)

• No Replace the connector (POWER).

▼

• Yes Failure of IC1 (MHM2029K)

- 43 -

B-27 Data sent through the centronics I/F cannot be received.

• Is the signal at Pin 11 (BUSY-P) of connector (CENT) being at low level?

• No Is the signal at Pin 1 (BUSY-P) of IC17 (74LS07) changed as shown

below, at data reception?

ON-LINE

BUSY-P Low

OFF-LINE

High

• No Failure of IC1 (MHM2029K)

▼

• Yes Replace IC17 (74LS07).

▼

• Yes Is the level of the signal at Pin 1 (STB-N) of connector (CENT) changed at data

reception?

• No Make sure of the connection of I/F cable or the operation of the host

computer.

▼

• Yes Is the signal at Pin 3 (ACK-N), IC17 (74LS07) being respectively at low level at

data reception?

• Yes Replace IC17 (74LS07).

• OK?

▼

• No Failure of IC1 (MHM2029K)

• No

- 44 -

B-28 Data sent through the RS232C I/F cannot be received

• Is the voltage -8V at the 1 pin of the IC18 (75188)?

• No Does the connector (POWER) have any trouble?

(Carry out a connection check towards the connection cord and connector at the same time.)

• No Replace the connector (POWER).

▼

• Yes Failure of Power supply board (120V or 230V) or Connection Code-

Wire

▼

• Yes Is there any change in signal (DEBUGRXD-N) at the 101 pin of the IC1

(MHM2029K) when receiving data from the host computer?

• No Does the connector (RS232C) have any trouble?

(Carry out a connection check towards the connection cord and connector at the same time.)

• No Replace the connector (RS232C).

▼

• Yes Make sure of setting of a host computer.

▼

• Yes Is there any change in signal (DEBUGTXD-P) at the 2 pin of the IC18 (75188)

when receiving data from the host computer?

• No Failure of IC1 (MHM2029K)

▼

• Yes Is there any change in signal (TXD) at the 2 pin of the connector (RS232C) when

receiving data from the computer?

• No Replace IC 18(75188)

▼

• Yes Does the connector (RS232C) have any trouble? (Carry out a connection check towards the connection cord and connector at the

same time.)

• No Replace the connector (RS232C)

▼

• Yes Make sure of setting of a host computer.

- 45 -

C-1 Abnormal message display on the LCD (no display, display some dot lit, etc.).

• Replace IC2 (HD44780).

▼

• OK?

▼

• No Replace IC3 (MSM5259).

▼

• OK?

▼

• Replace IC1 (BU6152S).

C-2 The key switch operation on the operator panel is disabled.

• Are the level of the signal at Pins, 3, 7, 10, 18, 23, 31 of IC1 (BU6152S) changed from

the high level to the low one by the key switch pushing?

• No Replace SW1 to SW8.

▼

• Yes Is the connection of CN1 correct?

• No Connect it correctly.

▼

• Yes Replace IC1 (BU6152S).

- 46 -

D-1 PAPER SIZE ERROR occurs.

• Does the PAPER SIZE 0 signal at pin 4 of CN11 go LOW when SW1 is depressed and

does the same signal go HIGH when SW1 is not depressed?

• No Replace SW1.

▼

• Yes Does the PAPER SIZE 1 signal at pin 3 of CN11 go LOW when SW2 is depressed

and does the same signal go HIGH when SW2 is not depressed?

• No Replace SW2.

▼

• Yes Does the PAPER SIZE 2 signal at pin 2 of CN11 go LOW when SW3 is depressed

and does the same signal go HIGH when SW3 is not depressed?

• No Replace SW3.

▼

• Yes Does the PAPER SIZE 3 signal at pin 1 of CN11 go LOW when SW4 is depressed

and does the same signal go HIGH when SW4 is not depressed?

• No Replace SW4.

▼

• Yes Replace Core Assy. -FFC.

- 47 -

5. CIRCUIT DIAGRAM

Figure 5-1(1/17~17/17) Main Controller PCB (AAA-PCB, Rev.4) Figure 5-2(1/3~3/3) Operation Panel PCB (PCO-PCB, Rev.2) Figure 5-3(1/1) Cassette Switch PCB (PXC-PCB, Rev.3)

- 48 -

123 45678 9XY

A

B

C

D

E

F

G

H

A

B

C

D

E

F

G

H

0.1u 25

1000p 50

0.01u 50

1u 16

10u 16

300

330910

0.1u 25

5.1K 1/10W

NOMOUNT NOMOUNT

NOMOUNT

220

100

(AAA-1/17) Rev. 4

Figure 5-1 Main Control PCB

- 49 -

123 45678 9XY

A

B

C

D

E

F

G

H

A

B

C

D

E

F

G

H

5.1K

51

2.7K 1/10W

5.1K 1/10W

2.7K 1/10W

5.1K 1/10W

5.1K

51 1/10W

2.7K 1/10W

2K 1/10W

2K

51

5.1K 1/10W

0 1/10W

51 1/10W

5.1K

51 1/10W

51

51 1/10W

51 1/10W5151

5.1K 1/10W

5.1K

5.1K 1/10W

5.1K

5.1K 1/10W

0 1/10W

NOMOUNT

(AAA-2/17) Rev. 4

Figure 5-1 Main Control PCB

- 50 -

123 45678 9XY

A

B

C

D

E

F

G

H

A

B

C

D

E

F

G

H

5.1K

51

5151515151

51

0.1u 50

5.1K

51

5.1K

(AAA-3/17) Rev. 4

Figure 5-1 Main Control PCB

- 51 -

123 45678 9XY

A

B

C

D

E

F

G

H

A

B

C

D

E

F

G

H

Ω

1.5K

2.7K

0.1u 50

3.9K 3.9K

D504

1K

0.51 0.5W

1.5K

200

10K

330

0.51 0.5W

912mA (5VD=5.0V)

894mA (5VD=4.9V)

Im=0.9A

Im=0.6A

610mA (5VD=5.0V)

598mA (5VD=4.9V)

(AAA-4/17) Rev. 4

Figure 5-1 Main Control PCB

- 52 -

123 45678 9XY

A

B

C

D

E

F

G

H

A

B

C

D

E

F

G

H

3.3V

5.1K 5.1K

5.1K 1/10W

0.1u 25

100

0.1u 25

1K 1/10W

0.1u 25

560p 50

0.1u 25

1K 0.1

15K 1/10W

1K 1/10W

33p 50

5.1K

100

0.1u 25

(AAA-5/17) Rev. 4

Figure 5-1 Main Control PCB

- 53 -

123 45678 9XY

A

B

C

D

E

F

G

H

A

B

C

D

E

F

G

H

4.3K 1/10W2.2K 1/10W

3.3K 1/10W

430 1/10W

0.22u 50

0.1u 25

0.1u 50

0.1u 25

1u 16

2.7K

0.1u 50

1.8K

15K

(AAA-6/17) Rev. 4

Figure 5-1 Main Control PCB

- 54 -

123 45678 9XY

A

B

C

D

E

F

G

H

A

B

C

D

E

F

G

H

3.3V

1.5u 25

56

(AAA-7/17) Rev. 4

Figure 5-1 Main Control PCB

- 55 -

123 45678 9XY

A

B

C

D

E

F

G

H

A

B

C

D

E

F

G

H

0.1u 25

1.2K

1.2K 200

240 1/10W

2.7K 1/10W

10K 1/10W

1K 1/10W 1K 1/10W

470 1/10W

0.1u 25

10u 50

2.7K

0.1u 25

10u 50

(AAA-8/17) Rev. 4

Figure 5-1 Main Control PCB

- 56 -

123 45678 9XY

A

B

C

D

E

F

G

H

A

B

C

D

E

F

G

H

3.3K 0.063W

1/10W 3.3K

3.3K 0.063W

22 0.063W

10K 1/10W

1K 1/10W

100 1/10W 1K

0

3.3K

1A

0.1u 25

(AAA-9/17) Rev. 4

Figure 5-1 Main Control PCB

- 57 -

123 45678 9XY

A

B

C

D

E

F

G

H

A

B

C

D

E

F

G

H

0.1u 25

5.1K 1/10W

0.1u 25

5.1K 1/10W

0.1u 25

19323128181716151413123334454442414340

47112946486671

103059

13972

103059

13972

646260585654525038

19323128181716151413123334454442414340

47112946486671

646260585654525038

10 100u

(AAA-10/17) Rev. 4

Figure 5-1 Main Control PCB

- 58 -

123 45678 9XY

A

B

C

D

E

F

G

H

A

B

C

D

E

F

G

H

5.1K

NOMOUNT

5.1K

0.1u 25

5.1K

1K

0.1u 25

10u 16

SOCKET

NOMOUNT

FSIMM1

HDD

100

(AAA-11/17) Rev. 4

Figure 5-1 Main Control PCB

- 59 -

123 45678 9XY

A

B

C

D

E

F

G

H

A

B

C

D

E

F

G

H

0.1u 50

0.1u 25

220u 16

5.1K 1/10W

5.1K

NOMOUNT

100p 50

MUPIS

(AAA-12/17) Rev. 4

Figure 5-1 Main Control PCB

- 60 -

123 45678 9XY

A

B

C

D

E

F

G

H

A

B

C

D

E

F

G

H

0.1u 25

0.1u 250.1u 250.1u 25

100u 10

200

100

(AAA-13/17) Rev. 4

Figure 5-1 Main Control PCB

- 61 -

123 45678 9XY

A

B

C

D

E

F

G

H

A

B

C

D

E

F

G

H

0.1u 25

123

4

876

5

123

4

876

5

123

4

876

5

123

4

876

5

123

4

876

5

123

4

876

5

123

4

876

5

123

4

876

5

(AAA-14/17) Rev. 4

Figure 5-1 Main Control PCB

- 62 -

123 45678 9XY

A

B

C

D

E

F

G

H

A

B

C

D

E

F

G

H

0.1u 25

100 1/10W

NOMOUNT

IC6 SOCKET

NOMOUNT

IC8 SOCKET

NOMOUNT

IC5 SOCKET

NOMOUNT

IC7 SOCKET

(AAA-15/17) Rev. 4

Figure 5-1 Main Control PCB

- 63 -

123 45678 9XY

A

B

C

D

E

F

G

H

A

B

C

D

E

F

G

H

0.1u 25

(AAA-16/17) Rev. 4

Figure 5-1 Main Control PCB

- 64 -

123 45678 9XY

A

B

C

D

E

F

G

H

A

B

C

D

E

F

G

H

3.3K

0.1u 50

(AAA-17/17) Rev. 4

Figure 5-1 Main Control PCB

- 65 -

123 45678 9XY

A

B

C

D

E

F

G

H

A

B

C

D

E

F

G

H

0.1u 25

200 1/10W

(PCO-1/3) Rev. 2

Figure 5-2 Operation Panel PCB

- 66 -

123 45678 9XY

A

B

C

D

E

F

G

H

A

B

C

D

E

F

G

H

0.1u 25

7.5K 7.5K 7.5K 7.5K 7.5K 7.5K

91K

10K

LCD

(PCO-2/3) Rev. 2

Figure 5-2 Operation Panel PCB

- 67 -

123 45678 9XY

A

B

C

D

E

F

G

H

A

B

C

D

E

F

G

H

0.1u 25

LCD

1234567891011121314151617181920222324252627282930313233343536373839404142

44

(PCO-3/3) Rev.2

Figure 5-2 Operation Panel PCB

- 68 -

123 45678 9XY

A

B

C

D

E

F

G

H

A

B

C

D

E

F

G

H

(PXC-1/1) Rev. 3

Figure 5-3 Cassette Switch PCB

- 69 -

6. COMPONENT PARTS LIST

Main Controller PCB (AAA-PCB, Rev.4) 40285702 Operation Panel PCB (PCO-PCB, Rev.2) Cassette Switch PCB (PXC-PCB, Rev.3) 40368602

- 70 -

FRONT

HOPPING

MAIN

917171413111213 4

1 2

5 6

ENVELOPE

MOTOR

ENDLOW2NDTRAY

CLRCLH

PANEL

IC19

MUPIS

A1 C1

A32 C32

1 2

71 72

1 2

71 72

1 2

71 72

CENT

RS232C

1 14

13 25

18 36

1 19

HDD

FSIMM1 SIMM1 SIMM2

STKFULL

NW

HEAD2

HEAD1

IC17

DUP

POWER

SIZE

1

2

1

2

25

26

5

6

112

12

11

2

1

13

14

1

157

104

53

208

156

1

105

52

2

1

13

12

3

1

44

43

81

80 51

130

100

50

31

2

1

BF1

BF6

BF9D1BF10

BF11

FU2

BF12

BF7

C3

C39

PS4

C12

C33 R61

R17 R13 R62 R63 C34

C22 R27 R24

R32 R28

R33

R26

R59

R60

R89

C44 C43

C27 C26 C25 C24

R5 R15

R55

C19 C18 C17 C20

C21 R37

R6 R7 R54

R70 R23

C32 R9

R12 R11 R10 R16 R14 R58

R20 R19 R18 R21

RM4RM3RM7

C1

RM8

RM6RM5

C13

TR2TR1

FU4

FU3

R2R1

R4R3

C14

C15

C6

C11

C7

C9

IC20

R94

C5

C41

IC2

BF5

BF4

BF3

OSC1 C28

RM20RM19

RM22RM21

RM18RM17

IC5IC6

FU1

FU5

BF2

IC7IC8

IC16

EM6

R87

R86

TR3

IC21

R84 R85

R29 R88 R51 R46 R49

R50 R77 R53 R45 R47

R52 R73 R68 R48

R22 R25

R91

R56

IC3

IC4

IC15

IC16

R95

IC14

IC13

IC12

IC11

RM1RM2

RM9RM10 RM11 RM12

IC10

IC9

IC22

RM13 RM14 RM15 RM16

BF8

C40

TR4 TR5

R72

R30

R69

C16

R42

R71

R40

R41

R64

R75

R74

R67

R43

R38

R39

R44

C42

C8

IC1

C4

TA1

R90

R93

125

3

Reflow surface

2

1

124 123

121

122

120

124

122

119

126

Main Controller PCB (AAA-PCB) Rev. 4

(40285702 - 1/10)

- 71 -

R593

R564

C533

C524

C517

C502

C513

C512

C519

TR504

TR503 TR501

TR502

R506

D501

D504

D505

TR505

TR506

R608

R532

C530

C592

C515

C593

C538

C520

C527

C532

C537

C539

C552

R525

C528

R700

C590

C591

C525

R517

R514

R513

R512

R526

R681

C554

R553

C562

C558

C555

C561

C557

R576

D503D502

C553

C568 C567 C566 C565

R628

R592 R591 R590 R589 R588 R587

R542 R541 R540 R539 R538

R716 R708 R715 R707 R714 R706 R713 R705

C560 R563 R562 R561 R560 R559 R558

C578

C577

C536 C535 C534

C523

C522

C521

C516

C595 C594

R701 R709 R702 R710 R703 R711 R704 R712

R509

R505 R504 C508

R503 C507

R502 C506 C505 R501

R516 C518 R515

R523 C526 R522

C564 R570

R615 C585

R613

R627 C588

R625

R612 C584

R610

R624 C587

R622

R621 R620 C586

R609

C583

C563 R569

R568 R567 R566 R565

R533

R531

R507 R506 C509

R536

R535 R534

C549 C548 C547 C546 R545

R577 C572 C571 C570 C569

C576 C575 R580

C574 C573 R578

R692 R699 R691 R698 R690 R697 R689

R685 R693 R686 R694 R687 R695 R688 R696

C514

C504 C503

C531

C545

C544 C543 C542 C541

R586 R585 R584 R583 R582

C582 R602 R601

C581

R607 R606 R605 R604 R603

R639 R638 R637 R636 R635

R633 R632 R631 R630

R597 R596 R595 R594

R575 R574

R573 R572

R571

C551

C550

R619 R618 R617 R616

C559

R555

R557

R556

R600 C580 C579

C589R629

R554

R550 R548 R546

R549R547

R552

R551

R544

R543

C540 C537

- 72 -

Main Controller PCB (AAA-PCB) Rev. 4

(40285702 - 2/10)

Main Controller PCB (AAA-PCB) Rev. 4

(40285702 - 3/10)

REF.

NO.

1

2

3

4

5

6

7

8

SYMBOL TYPE/NAME PART NO. Q'TY REMARKS

D502

D501,D503

D504,D505

D1

DICF-42CS-E IC Socket

2-176438-7 IC Socket

DICF-8CS-E IC Socket

SS100MA80VACP Signal DI (CP)

SS100MA80VKCP Signal DI (CP)

MA151WK/N202K/2838 Signal DI (CP)

RD4.3M-B3 Zener DI

245A1221P0420

245A1372P0720

245A1221P0080

611A0000N0001

611A0000N0002

611A0003N0003

613A0233M0092C

4

3

1

2

1

9

10

R557

11

R612,R615

12

R556

13

R627

14

R616~R619

15

R601,R624

16

R602

17

R5~R7,R9~R15,R95, R554,R593,R685~R716

RM73B2A105F RN Resistor (CP)

RM73B2A201F RN Resistor (CP)

RM73B2A221F RN Resistor (CP)

RM73B2A272F RN Resistor (CP)

RM73B2A301F RN Resistor (CP)

RM73B2A331F RN Resistor (CP)

RM73B2A911F RN Resistor (CP)

RM73B2A101J RN Resistor (CP)

323A5003F0105

323A5003F0201

323A5003F0221

323A5003F0272

323A5003F0301

323A5003F0331

323A5003F0911

323A5003J0101

1

2

1

4

2

1

45

- 73 -

Main Controller PCB (AAA-PCB) Rev. 4

(40285702 - 4/10)

REF.

NO.

18

19

20

21

22

23

24

SYMBOL TYPE/NAME PART NO. Q'TY REMARKS

R16~R22,R506,R516, R523,R533,R536,R555, R568~R570,R576,R609, R621,R622,R625,R628

R23,R24,R543,R552, R608,R620

R542,R566,R567

R25,R505,R629

R504

R94,R502

R74,R603,R604,R606

RM73B2A102J RN Resistor (CP)

RM73B2A103J RN Resistor (CP)

RM73B2A122J RN Resistor (CP)

RM73B2A153J RN Resistor (CP)

RM73B2A182J RN Resistor (CP)

RM73B2A201J RN Resistor (CP)

RM73B2A202J RN Resistor (CP)

323A5003J0102

323A5003J0103

323A5003J0122

323A5003J0153

323A5003J0182

323A5003J0201

323A5003J0202

22

6

3

1

2

4

R26

25

R27

26

R28

27

R537

28

R29,R30,R503,R507,

29

R577,R582,R584 R515,R522

30

R93,R508,R509,R525,

31

R526,R544,R551 R578,R580,R610,R613

32

R531,R532,R534,R535

33

RM73B2A222J RN Resistor (CP)

RM73B2A241J RN Resistor (CP)

RM73B2A244J RN Resistor (CP)

RM73B2A270J RN Resistor (CP)

RM73B2A272J RN Resistor (CP)

RM73B2A303J RN Resistor (CP)

RM73B2A332J RN Resistor (CP)

RM73B2A333J RN Resistor (CP)

RM73B2A392J RN Resistor (CP)

323A5003J0222

323A5003J0241

323A5003J0244

323A5003J0270

323A5003J0272

323A5003J0303

323A5003J0332

323A5003J0333

323A5003J0392

1

7

2

7

4

- 74 -

Main Controller PCB (AAA-PCB) Rev. 4

(40285702 - 5/10)

REF.

NO.

34

35

36

37

38

39

SYMBOL TYPE/NAME PART NO. Q'TY REMARKS

R32

R33

R565

R37,R39,R41,R45~R53, R501,R545,R560~R563, R586,R594,R600,R631 ~R633,R635~R639,R681

R54~R56,R58~R64,R67~ R73,R75,R77,R91,R512~ R514,R517,R553,R558, R559,R564,R571~R575, R583,R585,R595~R597, R605,R607,R630

R84~R87,R587~R592

RM73B2A431J RN Resistor (CP)

RM73B2A432J RN Resistor (CP)

RM73B2A471J RN Resistor (CP)

RM73B2A510J RN Resistor (CP)

RM73B2A512J RN Resistor (CP)

RM73B2A560J RN Resistor (CP)

323A5003J0431

323A5003J0432

323A5003J0471

323A5003J0510

323A5003J0512

323A5003J0560

1

30

41

10

R88

40

R89

41

R38,R40,R42~R44,R90,

42

R538~R541,R546~R550 R1~R4

43

44

RM21,RM22

45

RM1~RM7

46

RM8~RM16

47

RM17~RM20

48

RM73B2A561J RN Resistor (CP)

RM73B2A683J RN Resistor (CP)

2125JPW Tip Jumper (CP)

MSF1/2B0.51ΩJ RS Resistor

MNR14E0ABJ220 Resistor-Block -C

MNR14E0ABJ330 Resistor-Block -C

MNR14ABJ101 Block Resistor (CP)

MNR14ABJ332 Block Resistor (CP)

323A5003J0561

323A5003J0683

323A5003P0001

324A1001J0518

3345000J0220

3345000J0330

334A5012J0101

334A5012J0332

1

15

4

2

7

9

4

- 75 -

Main Controller PCB (AAA-PCB) Rev. 4

(40285702 - 6/10)

REF.

NO.

49

50

51

52

53

54

55

56

SYMBOL TYPE/NAME PART NO. Q'TY REMARKS

C16,C517,C560

C17~C22,C505,C506, C546~C548

C509,C518,C526,C549, C569~C572

C559,C563,C564,C573, C575,C583~C588

C24~C28

C528

C29

CC2012CH1H101J 50V CC Capacitor (CP)

CC2012CH1H330J 50V CC Capacitor (CP)

CC2012CH1H680J 50V CC Capacitor (CP)

CC2012SL1H102J 50V CC Capacitor (CP)

CC2012SL1H561J 50V CC Capacitor (CP)

CC2012SL1H681J 50V CC Capacitor (CP)

CK92F1E155ZS 25V CK Capacitor 1.5µF

303A3007C0101

303A3007C0330

303A3007C0680

303A3007K0102

303A3007K0561

303A3007K0681

303A4117Z2155

3

11

8

11

5

1

57

C541,C555,C565,C568

58

C507,C540,C543,C581

59

C32~C34,C39,C40,C502 ~C504,C512~C515,C519~ C525,C527,C530~C533, C537~C539,C542,C544, C545,C550~C554,C557, C558,C561,C562,C566, C567,C589~C595

60

C35

61

C582

62

C508,C534~C536,C574, C576~C580

63

C43,C44,C516

CK2012B1H102K 50V CK Capacitor (CP)

CK2012F1C105Z 16V CK Capacitor (CP) 1µF

CK2012F1E104Z 25V CK Capacitor (CP)

CK2012F1E224Z 25V CK Capacitor (CP)

CK2012F1H103Z 50V CK Capacitor (CP)

CK2012F1H104Z 50V CK Capacitor (CP)

CK3216B1H104K 50V CK Capacitor (CP)

303A6008K3102

303A6008Z1105

303A6008Z2104

303A6008Z2224

303A6008Z3103

303A6008Z3104

303A6009K3104

4

48

1

10

3

- 76 -

Main Controller PCB (AAA-PCB) Rev. 4

(40285702 - 7/10)

REF.

NO.

64

65

66

67

68

69

70

71

SYMBOL TYPE/NAME PART NO. Q'TY REMARKS

C1,C42

C3

C4~C6

C8

C11

C7,C41

C9,C12,C13

URS1C221MNA1FA 16V CE Capacitor 220µF

10MS5-68M 10V CE Capacitor 68µF

16MS5-10M 16V CE Capacitor 10µF

UVS1A332MHA 10V CE Capacitor 3300µF

SME50VB-220-CC 50V CE Capacitor 220µF

KMG10VB-100M-FC 10V CE Capacitor 100µF

KMG50VB-10M-FC 50V CE Capacitor 10µF

304A1007C1221

304A1046A1680

304A1046C1100

304A1137A1332

304A1165H1221

304A1180H1101

304A1180H1100

2

1

3

1

2

3

72

73

74

75

76

77

78

79

80

C14,C15

IC1

IC2

IC17

IC22

IC13~IC16

IC9~IC12

IC18

KMG50VB-47M-FC 50V CE Capacitor 47µF

MHM2029-003K-41 Micro Computer-MOS -F

LZ9FF22 Digital IC-MOS -F

74LS07FP BIP Digital IC (S0)

SN74LS00NS BIP Digital IC (S0)

SN74ALS244CNS BIP Digital IC (S0)

74ALS245AFP BIP Digital IC (S0)

SN75188NS BIP-INF-IC (S0)

304A1180H1470

8510440N0004

7024631N2001

700A0503N0007

700A0550N0000

700A2550N0244B

700A2503N0245

710A0050N0188

2

1

4

1

- 77 -

Main Controller PCB (AAA-PCB) Rev. 4

(40285702 - 8/10)

REF.

NO.

81

82

83

84

85

86

87

88

SYMBOL TYPE/NAME PART NO. Q'TY REMARKS

IC21

IC20

HOPPING,MAIN

IC3,IC4

IC19

EM8

TL431CLP/NJM431L-T3 Analog IC-BIP Linear -P

UPC393G2 BIP Linear IC (S0)

A2918SWV BIP Linear IC

5118160JP-60 Memory IC-MOSDRAM -S

NM93C46LN-NW Memory IC-MOSEEPR -

ZJSC-R47-181 EMI Filter

7200903M9001

720A0523N0011

720A1826M0004

8020003N4613

8160339M0000

342A1012P1181

1

2

1

TR5,TR501,TR502

89

TR1,TR2

90

TR4,TR503,TR504

91

TR505,TR506

92

TR3

93

94

CENT

95

RS232C

96

HDD

97

A1344/UN2111/DTA114K PNP-HF-TR (CP)

2SA1417S/T PNP-HF-TR (CP)

DTC114EKA NPN-HF-TR (CP)

DTC123YK NPN-HF-TR (CP)

2SD1623S NPN-LF-TR (CP)

57RE-40360-830B-D29 Rectangular Connector

17LE-13250-27(D4CC) Rectangular Connector

A3E-44PA-2DSA PC Connector

600A1003N0003

600A1032N0011

602A1035N0005

602A1035N0019

603A1132N0001S

2201001P0360

220A1448P0250

2241001P0440

3

2

3

2

1

- 78 -

Main Controller PCB (AAA-PCB) Rev. 4

(40285702 - 9/10)

REF.

NO.

98

99

100

101

102

103

104

105

SYMBOL TYPE/NAME PART NO. Q'TY REMARKS

POWER

END

LOW

PANEL,SIZE

NW,HEAD2

HEAD1

MOTOR

CLR

B26B-PHDSS PC Connector

175487-3 PC Connector

175487-4 PC Connector

06FE-BT-VK-N PC Connector

12FE-BT-VK-N PC Connector

14FE-BT-VK-N PC Connector

00-8263-0412-00-000 PC Connector

B2B-PH-K-S PC Connector

2243004P0260

2244005P0030

2244005P0040

2244102P0060

2244102P0120

2244102P0140

224A3357P0040

224A3529P0020

1

2

1

CLH,STKFULL

106

MUPIS

107

TA1

108

2NDTRAY,ENVELOPE

109

FRONT

110

DUP

111

112

OSC1

113

BF1~BF12,PS14

114

B3B-PH-K-S PC Connector

00-8345-396-949-014 PC Connector

IMSA9202B-1-03Z013GF PC Connector

175487-7 PC Connector

175487-9 PC Connector

1-175487-2 PC Connector

CST10.1MTW042-TF01 Ceramic Oscillator -P

ZBF253D-01 Beads Filter

224A3529P0030

224A3618P0640

224A4082P0030

224A4322P0070

224A4322P0090

224A4322P0120

3811000B0002

377A1115P1309

2

1

2

1

13

- 79 -

Main Controller PCB (AAA-PCB) Rev. 4

(40285702 - 10/10)

REF.

NO.

115

116

117

118

119

120

121

122

SYMBOL TYPE/NAME PART NO. Q'TY REMARKS

FU1~FU4

FU5

251-001 Fuse

Z01/4W Resistor-0Ω-Q

Plate Panel

Earth Plate (A)

Earth Plate (B)

Screw

540A2208S1102

3251503P0001

40323601

PP4128-1131P001

PP4128-1132P001

P3-6G

4

1

2

123

124

125

126

Plate-Blind

Screw

MPS-04-0 Card Spacer

IMSA-9206H-GF PC Connector

40442801

PSW2W3-6C

143A1047P0001

224A4080P0020

1

2

1

- 80 -

SW4

C7C6C5

SW3

IC1

SW2

SW1C2SW5

C8

LCD

C1

SW8

SW7

R13

R15

SW6

IC2

R1

C3

C4

R14

R2R3R4R5R6R7R8

R19

R20

R21

R22

R23

R18

CN1

125

6

IC3

D6

D5

R11

R16

R10

D3D2D1

R17

R9

R12

D4

Operation Panel PCB(PCO-PCB) Rev.2

( - 1/3)

- 81 -

Operation Panel PCB(PCO-PCB) Rev.3

( - 2/3)

REF.

NO.

1

2

3

4

5

6

7

8

SYMBOL TYPE/NAME PART NO. Q'TY REMARKS

SW1~SW8

C5~C8

C2~C4

C1

R1

SOR113-HS Push Button Switch

CC2012CH1H101J 50V CC Capacitor (CP)

CK2012F1E104Z 25V CK Capacitor (CP)

KME10VB-100 10V CE Capacitor 100µF

RM73B2A913F RN Resistor (CP)

205A1165P1000

303A3007C0101

303A6008Z2104

304A1115A1101

323A5003F0913

8

4

3

1

10

11

12

13

14

15

16

17

9

R2~R8

R9~R17

R18

R19~R23

D6

D5

IC1

RM73B2A103J RN Resistor (CP)

RM73B2A201J RN Resistor (CP)

RM73B2A512J RN Resistor (CP)

RM73B2A752J RN Resistor (CP)

SEL3210R-YZ LED

SEL3610D-YZ LED

BU6152S MOS Digital IC

323A5003J0103

323A5003J0201

323A5003J0512

323A5003J0752

650A0129M0016

650A0229M0018

702A4733M0002

7

9

1

5

1

- 82 -

Operation Panel PCB(PCO-PCB) Rev.3

( - 3/3)

REF.

NO.

18

19

20

21

SYMBOL TYPE/NAME PART NO. Q'TY REMARKS

IC2

IC3

CN1

HD44780UB01FS CPU-INF-IC (FP)

MSM5259GS-2K CPU-INF-IC (FP)

06FE-ST-VK-N Connector-PCB

855A0421N0002

855A0024N0001

2244101P0060

1

- 83 -

SW4

R2

R4

R3

2

1

R1

6

5

CN11

SW3

SW2

SW1

7

Cassette Switch PCB(PXC-PCB) Rev.3

(40368602 - 1/2)

- 84 -

Cassette Switch PCB(PXC-PCB) Rev.6

(40368602 - 2/2)

REF.

NO.

1

2

3

4

5

6

7

8

SYMBOL TYPE/NAME PART NO. Q'TY REMARKS

SW1~SW4

CN11

R1~R4

SOR-113HS Push Button Switch

00-5062-301-006-000 PC Connector

RD1/4Y10KΩJ RD Resistor (CP)

SMCD6X370ESX10(BL) Connector

205A1165P1000

224A5114P0060

321A1421J0103

2381007P0002

4

1

4

1

9

10

11

12

13

14

15

16

17

- 85 -

APPENDIX A DUPLEX UNIT (OPTION)

1. CIRCUIT DESCRIPTION

1.1 Interface

IC3 (MSM65X512) uses a single line for transferring data to and from the CPU on the main unit side by performing the switchover between sending and receiving. To receive data from the CPU on the main unit side, IC3 (MSM65X512) causes the send/receive select signal at pin 4 of IC3 to be HIGH in order to drive the open collector output (pin 3 of IC5) to the high impedance state. As a result, the line in the send direction is open and the receive data ready state is established. To send data to the CPU on the main unit side, IC3 causes the send/receive select signal (pin 4 of IC3) to be LOW, so that the send data ready state can be established. Under this condition, IC3 can send out data through pin 6. When finishing data transmission, IC3 causes the send/receive select signal (pin 4 of IC3) to be HIGH to open the send direction of the line.

LEX-PCB AAA-PCB

5V

IC3

5V

MSM65X512

Send/receive select signal

Receive data

Send data

4 6

7

8

IC3-4

IC3-7

IC3-6

9

IC5

OC

10

8

Send data

Receive data

DATA

MAIN DUP

2

IC5

OC

1

3

9

8

4

IC5

11

OC

5

6

8

Clock

11

DATA

86

88

87

IC2

(LZ9FF22)

Clock

IC3-8

Ready for receiving Ready for sending Open

- A - 1 -

1.2 Motor Control

Duplex unit controls the paper flow by one motor, one clutch and one solenoid. (1) Motor

The motor is driven by the driver IC according to the control signal from the IC3 (MSM65X512).

DUPMON-N

DUPMPH1-P

DUPMPH2-P

Rotation

LEX-PCB

IC3

(MSM65X512)

T0 T1 T2 T3

DUPMPH1-P

14

DUPMPH2-P

15

DUPMON-N

17

13

8

7, 14

Forward rotation

IC2

(A2918)

1

17

2

4

MOTOR

1

2

3

4

Motor

M

Reverse rotationStop

Operation at normal speed: T0 to T3 = 918

µ

s

(2) Clutch and solenoid

Clutch and solenoid are driven by the driver IC according to the control signal from the IC 3 (MSM65X512).

LEX-PCB

(MSM65X512)

IC3

CLON-P

3

SLON-P

1

TR3

0VP

TR4

0VP

+38V

CLUTCH

1

TR1

2

0VP

+38V

SL2

1

TR2

2

0VP

Clutch

Solenoid

- A - 2 -

2. TROUBLESHOOTING

2.1 Troubleshooting Table

(A) Control board (LEX-PCB)

Failure LCD Message

DUPLEX INPUT JAM occurs.

DUPLEX FEED JAM1 occurs.

DUPLEX FEED JAM2 occurs.

DUPLEX FEED JAM3 occurs.

DUPLEX I/F timeout error occurs.

DUPLEX INPUT JAM REMOVE THE PAPER

DUPLEX FEED JAM1 REMOVE THE PAPER

DUPLEX FEED JAM2 REMOVE THE PAPER

DUPLEX FEED JAM3 REMOVE THE PAPER

ERROR 83

Flowchart

No. A - 1

A - 2

A - 3

A - 4

A - 5

- A - 3 -

2.2 Troubleshooting Flowchart

A-1 Duplex input JAM occurs

• Are papers normally fed to the Duplex unit?

• No Are the Paper sensor signals normally input to the 2 pin of the IC3(MSM65X512)?

• No Does the connector (MAIN) have any trouble?

▼

• Yes Does the signal (SLON-P) at the 1 pin of the IC3 (MSM65X512) change to High level.

• No Replace IC3 (MSM65X512)

▼

• Yes Does the 3 pin of the TR2 change to Low level?

• No Replace TR4.

▼

• Yes Does the 2 pin of the TR2 change to High level (+38V)?

(Carry out a connection check towards the connection cord and connector at the same time)

• No Replace the connector (MAIN).

• No Replace TR2.

▼

• Yes Does the connector (SL2) have any trouble? (Carry out a connection check towards the connection cord and connector at the same time)

• No Replace the connector (SL2).

▼

• Yes Failure of solenoid

▼

• Yes Is the Duplex In sensor signal normally input to the 12 pin of the IC3 (MSM65X512).

• Yes Replace IC3 (MSM65X512)

▼

• No Does the connector (INSENS) have any trouble? (Carry out a connection check towards the connection cord and connector at the same time)

• No Replace the connector (INSENS).

▼

• Yes Failure of Duplex In sensor or Connection Code-Wire

- A - 4 -

A-2 Duplex feed JAM1 occurs

• Is the Duplex motor rotating after a paper is fed to the Duplex unit?

• No Is the Outlet sensor signal normally input to the 10 pin of the IC3 (MSM65X512)?

• Yes Does the connector (MAIN) have any trouble?

▼

• Yes Are the normal waveforms as shown in section 1.2 output to pins 14, 15 and 17 of IC (MSM65X512)?

• No Replace IC3 (MSM65X512).

▼

• Yes Does the connector (MOTOR) have any trouble? (Carry out a connection check towards the connection cord and connector at the same time. )

• No Replace the connector (MOTOR).

▼

• Yes Replace IC2 (A2918).

(Carry out a connection check towards the connection cord and connector at the same time. )

• No Replace the connector (MAIN).

▼

• OK? Yes end

▼

• No Failure of motor or mechanical parts

▼

• Yes Is the Duplex In sensor signal normally input to the 12 pin of the IC3 (MSM65X512)?

• Yes Replace IC3 (MSM65X512)

▼

• No Does the connector (INSENS) have any trouble? (Carry out a connection check towards the connection cord and connector at the

same time. )

• No Replace the connector (INSENS)

▼

• Yes Failure of Duplex In sensor or Connection Code-Wire

- A - 5 -

A-3 Duplex feed JAM2 occurs

• Can a paper reach the Duplex Rear sensor?

• No Does the signal (CLON-P) at the 3 pin of IC3 (MSM65X512) change to High level?

• No Replace IC3 (MSM65X512)

▼

• Yes Does the 3 pin of the TR1 change to Low level?

• No Replace TR3.

▼

• Yes Does the 2 pin of the TR1 change to High level (+38V)?

• No Replace TR1.

▼

• Yes Does the connector (CLUTCH) have any trouble? (Carry out a connection check towards the connection cord and connector at the same time. )

• No Replace the connector (CLUTCH).

▼

• Yes Failure of mechanical parts

▼

• Yes Is the Duplex Rear sensor signal normally input to the 11 pin of the IC3 (MSM65X512)?

• Yes Replace IC3 (MSM65X512).

▼

• No Replace SENSOR.

- A - 6 -

A-4 Duplex feed JAM3 occurs

• Can a paper reach the Duplex Front sensor?

• No Does the signal (CLON-P) at the 3 pin of the IC3 (MSM65X512) change to High level?

• No Replace IC3(MSM65X512).

▼

• Yes Does the 3 pin of the TRI change to Low level

• No Replace TR3.

▼

• Yes Does the 2 pin of the TRI change to High level (+38V)?

• No Replace TR1.

▼

• Yes Does the connector (CLUTCH) have any trouble? (Carry out a connection check towards the connection cord and connector at the same time. )

• No Replace the connector (CLUTCH).

▼

• Yes Failure of mechanical parts

▼

• Yes Is the Duplex Front sensor signal input to the 13 pin of the IC3 (MSM65X512)?

• Yes Replace IC3 (MSM65X512).

▼

• Yes Does the connector (FSENS) have any trouble? (Carry out a connection check towards the connection cord and connector at the

same time. )

• No Replace the connector (FSENS)

▼

• Yes Failure of Duplex Front sensor or Connection Code-Wire

A-5 Duplex I/F timeout error occurs (ERROR 83)

• Does the connector (MAIN) have any trouble?

(Carry out a connection check towards the connection cord and connector at the same time. )

• No Replace the connector (MAIN).

▼

• Yes Replace IC3 (MSM65X512)

▼

• OK? Yes end

▼

• No Replace IC5 (LS38).

- A - 7 -

3. CIRCUIT DIAGRAM

Figure 3-1(1/3~3/3) Duplex control-PCB (LEX-PCB, Rev. 2)

- A - 8 -

123 45678 9XY

A

B

C

D

E

F

G

H

A

B

C

D

E

F

G

H

5.1K

51K

15K

0.1u 50

5.1K

0.1u 50

68p 50

0.1u 50

5.1K

NOMOUNT

(LEX-1/3) Rev. 2

Figure 3-1 Duplex Control PCB

- A - 9 -

123 45678 9XY

A

B

C

D

E

F

G

H

A

B

C

D

E

F

G

H

0.51 0.5W

1K

0.51 0.5W

1K

3.9K

1.6K

0.1u 50

1.5K

3.9K

820 820 820 820

(LEX-2/3) Rev. 2

Figure 3-1 Duplex Control PCB

- A - 10 -

123 45678 9XY

A

B

C

D

E

F

G

H

A

B

C

D

E

F

G

H

120 0.25

0.1u 50

(LEX-3/3) Rev. 2

Figure 3-1 Duplex Control PCB

- A - 11 -

4. COMPONENT PARTS LIST

Duplex control-PCB (LEX-PCB, Rev.2) 40495802

- A - 12 -

OKI 20, 20n Troubleshooting Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

CONTENTS