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5-1

UP-55MD

Section 5

Circuit Description

5-1. Outline of Operation

The electric circuit configuration of UP-55MD (hereinafter
referred to as this unit) can be mainly classified as follows:

1. Main block (MA-142 board)

Video signal processing

Video capture

Image rendering for monitor output

Image rendering for printing

System control

Print image processing

Motor/sensor control

2. Mechanical control block (MEC-24 board, EX-

970 board, motor boards, and sensor boards)

Motor driver

Sensor driver

3. Video interface block (IF-989 board)

BNC connector

S terminal connector

EE/THROUGH switching relay

4. Remote control block (IF-990 board)

REMOTE1 connector

REMOTE2 connector

RS-232C connector

5. MS and USB interface block (IF-988 board)

Memory stick slot

USB slot

6. RFID block for print media recognition

(CCM-53 board)

RFID antenna

RFID driver

7. LCD block (DP-407 board)

LCD

Buzzer

8. Keyboard block (KY-582 board)

Key switch

RS-232C connector

5-2. Outline of MA-142 Board

The MA-142 board is mainly classified into two circuit blocks.

1. Video signal processing block

In the video signal processing block, the following are

performed, that is, the decoding, adjustment, and capturing
of a video signal, the transfer of image data to a print

processing block, the rendering for monitor output, OSD
processing, and video encoding.

The video signal processing block mainly consists of the
following circuits.

Sync selector

DDR SDRAM

Video decoder

Video encoder

SOC (CPU)

Video driver

Flash memory

2. System control, mechanism, and print control

block

This block performs the image processing such as the

rendering, gamma, masking, and sharpness of the image data
transferred from a system control block and video signal

processing block, USB recording, and mechanical control.
This block mainly consists of the following circuits.

SOC (CPU)

SDRAM

Flash memory

ASIC

PLD

5-2-1. Video Signal Processing Block

1. Input signal processing block

(1) Sync selector (IC1001)

IC1001 switches the sync signal of the input

component signal, color-converts the signal, and
outputs it to IC1002.

For an RGB signal, a sync signal exists in a green
channel (SYNC ON GREEN) or sync signal-dedicated

channel. Whether the green channel or sync signal-
dedicated channel is selected depends on the setting of

a menu. The sync signal-dedicated channel
corresponds to an input of 0.3 to 4.0 V p-p.

An RGB signal is converted into a YCbCr signal in
IC1001 and output when it is input.

The operation described above is controlled from
IC1101 via a I

C bus.

Содержание UP55MD

Страница 1: ...COLOR VIDEO PRINTER UP 55MD SERVICE MANUAL Volume 1 1st Edition Revised 2 ...

Страница 2: ...den Um die Gefahr eines elektrischen Schlages Feuergefahr und Verletzungen zu vermeiden sind bei Wartungsarbeiten strikt die Angaben in der Anleitung zu befolgen Andere als die angegeben Wartungsarbeiten dürfen nur von Personen ausgeführt werden die eine spezielle Befähigung dazu besitzen AVERTISSEMENT Ce manual est destiné uniquement aux personnes compétentes en charge de l entretien Afin de rédu...

Страница 3: ... müssen Sie die Gesetze der jeweiligen Region und des jeweiligen Landes befolgen FÖRSIKTIGHET Fara för explosion vid felaktigt placerat batteri Byt endast mot samma eller likvärdig typ av batteri enligt tillverkarens rekommendationer När du kasserar batteriet ska du följa rådande lagar för regionen eller landet PAS PÅ Fare for eksplosion hvis batteriet ikke udskiftes korrekt Udskift kun med et bat...

Страница 4: ......

Страница 5: ...ler Platen Roller 1 15 1 5 11 Cam Gear L Cam Gear R 1 16 1 5 12 Interlock Switch 1 19 1 6 Unleaded Solder 1 19 1 7 Notes for Replacing Parts 1 19 1 8 Recommended Power Cord 1 20 1 9 Lithium Battery 1 21 2 Electrical Alignment 2 1 Service Mode 2 1 2 1 1 Startup Procedure 2 1 2 2 Adjustment menu 2 1 2 2 1 Button Operation in Menu 2 1 2 2 2 Description of Each Menu 2 1 2 3 Thermal Head Replacement Pr...

Страница 6: ...nter Dedicated Circuit IC301 5 5 5 2 5 Mechanical Control Block 5 8 5 2 6 Head Control Block 5 8 5 2 7 IC TAG Control Block 5 8 5 2 8 Key Input and Liquid Crystal Display Control Block 5 9 5 2 9 Fan Control 5 9 5 2 10 Power Circuit Block 5 9 5 3 Outline of KY 582 Board 5 9 5 4 Outline of DP 407 Board 5 9 5 5 Mechanical Control Block 5 10 5 5 1 Outline of Motor Driving Function Blocks 5 10 5 5 2 Se...

Страница 7: ...block diagrams schematic diagrams and board layouts of this unit Operating Instruction Supplied for products Part No 2 638 113 1X These manuals describes the information required for the actual management and operation of this unit Semiconductor Pin Assignments CD ROM Available on request This Semiconductor Pin Assignments CD ROM allows you to search for semiconductors used in Broadcast and Profes...

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Страница 9: ... drive assembly SW 1200 board IF 990 board IF 989 board MA 142 board SE 746 board SE 756 board EX 970 board SE 762 board SE 752 board SE 751 board SE 747 board MEC 24 board KY 582 board DP 407 board SE 755 board CCM 53 board SU 86 board SU 84 board SU 85 board SU 87 board SE 748 board SE 754 board SE 750 board SE 753 board SE 749 board IF 988 board 1 1 Board Location 1 2 Main Parts Location ...

Страница 10: ... the top cover Refer to Section 1 3 1 2 Remove the three screws BVTT2 6 x 5 and the screw B M2 5 EG GRIP 3 Disconnect the harness and two flexible flat cables from the connectors CN805 CN601 and CN602 on the MA 142 board 4 Remove the four hooks then remove the front panel assembly 5 Attach the front panel assembly in the reverse order of steps 1 to 4 1 3 3 Rear Panel Assembly 1 Remove the top cove...

Страница 11: ...nd 1901 on the MA 142 board 3 Disconnect the nine flexible flat cables from the connectors CN301 CN601 CN602 CN801 CN802 CN803 CN904 1001 and 1458 on the MA 142 board 4 Remove the six screws BVTT2 6 x 5 then remove the MA 142 board 5 Install the MA 142 board in the reverse order of steps 1 to 4 1 4 2 MEC 24 Board 1 Remove the top cover Refer to Section 1 3 1 2 Remove the front panel assembly Refer...

Страница 12: ...ew BVTT2 x 10 then remove the SE 756 board and switch plate 5 Disconnect the harness from the connector on the SE 756 board 6 Remove the two screws PSW2 6 x 8 protection plate and spring B then remove the ribbon door assembly 7 Remove the three screws M2 x 5 and six hooks of the ribbon door assembly then remove the door cover assembly 8 Remove the six screws BVTP2 6 x 6 then remove the reinforcing...

Страница 13: ...er stay assembly Refer to Section 1 5 5 9 Remove the screw BVTT2 6 x 5 and disconnect the harness from the connector on the SE 752 board then remove the SE 752 board 10 Remove the two hooks A then remove the ribbon sensor R cover 11 Remove the two screws BTP2 6 x 6 and two hooks D while pushing the projection of paper center guide then remove the center stay in the direction shown by the arrow E 1...

Страница 14: ... connector CN301 on the IF 988 board 7 Remove the four screws then remove the IF 988 board 8 Install the IF 988 board in the reverse order of steps 1 to 7 1 4 5 IF 990 Board IF 989 Board 1 Remove the top cover Refer to Section 1 3 1 2 Remove the front panel assembly Refer to Section 1 3 2 3 Remove the rear panel assembly Refer to Section 1 3 3 4 Remove the two screws BVTT2 6 x 5 then remove the re...

Страница 15: ...3 3 4 Remove the MA 142 board Refer to Section 1 4 1 5 Remove the two screws then remove the shield plate A and protector sheet A 6 Disconnect the three harnesses from the connectors on the switching regulator 7 Remove the four screws then remove the switching regulator 8 Attach the switching regulator in the reverse order of steps 1 to 7 1 5 2 Mechanical Main Unit Assembly 1 Remove the top cover ...

Страница 16: ...assembly 9 Remove the four screws then remove the bottom stay L and bottom stay R 10 Attach the mechanical main unit assembly in the reverse order of steps 1 to 9 1 5 3 Stepping Motor Removal 1 Remove the top cover Refer to Section 1 3 1 2 Remove the front panel assembly Refer to Section 1 3 2 3 Remove the MA 142 board Refer to Section 1 4 1 4 Remove the mechanical main unit assembly Refer to Sect...

Страница 17: ...then remove the capstan pulley and parallel pin 11 Remove the four screws BVTT2 6 x 5 then remove the stepping motor bracket 12 Remove the two screws PS3 x 4 then remove the stepping motor stepping motor belt and capstan belt Installation 13 Attach the stepping motor in the reverse order of steps 7 to 12 14 Insert the shaft ø2 length 50 mm or more from the oblong hole of the sensor gear or visuall...

Страница 18: ...efer to Section 1 4 1 4 Remove the mechanical main unit assembly Refer to Section 1 5 2 5 Remove the four screws then remove the ribbon drive assembly 6 Disconnect the two harnesses from the connectors on the SU 86 board and SU 87 board 7 Remove the two retaining rings W2 3 and the retaining ring W3 0 then remove the idler gear R worm wheel R and limiter S assembly 8 Remove the four screws then re...

Страница 19: ...24 board Refer to Section 1 4 2 6 Remove the stepping motor Refer to Section 1 5 3 7 Remove the four screws then remove the front corner stay 8 Remove the seven hooks A to G while pushing the portion A of the ribbon rail L from outside of the main chassis then remove the ribbon rail L in the direction shown by the arrow 9 Remove the two screws then remove the CCM 53 board 10 Remove the seven hooks...

Страница 20: ...Section 1 4 2 6 Remove the stepping motor Refer to Section 1 5 3 7 Remove the ribbon drive assembly Refer to Section 1 5 4 8 Remove the center stay assembly Refer to Section 1 5 5 9 Remove the retaining ring then remove the pick up gear and bearing 850 10 Remove the retaining ring then remove the bearing 850 11 Remove the two helical extension springs from the pick up arm L subassembly and pick up...

Страница 21: ...the adjustment is required Be sure to print a sample as a reference before replacing the thermal head For details refer to Section 2 3 1 Remove the top cover Refer to Section 1 3 1 2 Remove the front panel assembly Refer to Section 1 3 2 3 Remove the MA 142 board Refer to Section 1 4 1 4 Remove the top chassis stay top stay R and MA shield plate Refer to steps 4 to 6 in Section 1 5 2 5 Remove the ...

Страница 22: ... retaining rings E3 0 and two helical extension springs then remove the pinch roller assembly 11 Remove the two retaining rings E2 3 two bearing flanges and two bearings then remove the pinch roller 12 Attach the pinch roller in the reverse order of steps 10 and 11 13 Clean the pinch roller with alcohol 14 Assemble this unit in the reverse order of steps 1 to 9 10 Attach the thermal head in the re...

Страница 23: ... assembly Refer to Section 1 5 5 9 Remove the paper feed guide assembly Refer to Section 1 5 6 10 Remove the pinch roller Refer to Section 1 5 9 11 Remove the two screws then remove the two platen earth plates 12 Remove the capstan spacer 13 Remove the two helical extension springs from the paper lift lever subassembly 14 Remove the capstan roller in the directions shown by the arrows A and B 15 R...

Страница 24: ...3 7 Remove the ribbon drive assembly Refer to Section 1 5 4 8 Remove the center stay assembly Refer to Section 1 5 5 9 Remove the paper feed guide assembly Refer to Section 1 5 6 10 Remove the head unit assembly Refer to Section 1 5 8 11 Remove the two retaining rings then move the head arm L subassembly and head arm R subassembly in the inward direction n Check that the bearings are attached to t...

Страница 25: ...g Hole of chassis Shaft of mode lever L subassembly Groove of cam gear L Installation 15 Apply the grease on the cam gear L and cam gear R n When attaching the cam gear L and cam gear R be careful of their orientation 16 Align the bearing of the mode lever L subassembly with the groove of the cam gear L then attach it with the retaining ring 17 Align the hole of the chassis with the hole of the ca...

Страница 26: ...embly with the groove of the cam gear R then attach it with the retaining ring 19 Align the hole of the chassis with the hole of the cam gear R by rotating the cam gear R 20 Insert the shaft ø2 length 240 mm or more from the hole of the chassis to secure the cam gear L and cam gear R Or visually align the oblong hole of the chassis with the hole of the cam gear R 21 Attach the cam gear L and cam g...

Страница 27: ...eaded solder for the printed circuit board printed with the lead free mark The unleaded solder melts at a temperature about 40 dC higher than the ordinary solder therefore it is recom mended to use the soldering iron having a temperature regulator The ordinary soldering iron can be used but the iron tip has to be applied to the solder joint for a slightly longer time The printed pattern copper foi...

Страница 28: ...ot used for the power cord 1 8 Recommended Power Cord This unit does not come with a power cord To get a power cord please contact your local Sony Sales Office Service Center w Use the approved Power Cord 3 core mains lead Appliance Connector Plug with earthing contacts that conforms to the safety regulations of each country if applicable Use the Power Cord 3 core mains lead Appliance Connector Pl...

Страница 29: ...y 1 Open the front door 2 Remove the battery cover using a fine tipped driver etc 3 Remove the lithium battery in the direction of the arrow from battery holder on the KY 582 board 4 To install reverse the removal procedure n When attaching the lithium battery attach with the side facing upward Lithium battery Front door Battery cover Lithium battery KY 582 board Place the side facing upward KY 58...

Страница 30: ......

Страница 31: ...e of thermal head is adjusted Increase the value The voltage supply to the thermal head is increased and the print density becomes higher Decrease the value The voltage supply to the thermal head is decreased and the print density becomes lower 2 1 Service Mode 2 1 1 Startup Procedure 1 Turn on the power switch while pressing the and buttons simultaneously The service mode starts up n When SERVICE...

Страница 32: ...n the memory Select the item and press the EXEC button n When carrying out this item the temperature control of thermal head is not performed To make the print press the PRINT button of this unit STEP V STEP H COLOR BAR H BLACK GRAY C0h GRAY 80h GRAY 40h ...

Страница 33: ...s changed perform the master reset initialization For details of the master reset refer to Section 2 4 LCD CHECK The state of LCD on the front panel of this unit can be checked If the LCD is normal it lights up fully HEAD PRN The number of printed sheets after the previous replacement of the thermal head is displayed n After replacing the thermal head the head total count is reset refer to Section...

Страница 34: ...te temperature When the head temperature is low Perform the preheating and start the printing after the head temperature becomes appropriate When the head temperature is high Perform the cooling by the fan and start the printing after the head temperature becomes appropriate n If the top cover is attached to this unit the temperature in this unit tends to increase the temperature of thermal head i...

Страница 35: ...e printing position adjustment value P H SHIFT value and LANGUAGE setting are not reset 2 3 2 Density Check and Adjustment 1 Print the test pattern Refer to Section 2 3 1 2 Replace the thermal head Refer to Section 1 5 8 3 Check that the ink ribbon and paper are loaded in this unit 4 Start the service mode Refer to Section 2 1 1 5 Print the test pattern Refer to Section 2 3 1 6 Check if the test p...

Страница 36: ...be sure to perform the version upgrade When replacing the MA 142 board Perform the version upgrade using both DM179AP VUP SY and PNX179AP VUP VA version upgrade files When replacing IC910 on the MA 142 board Perform the version upgrade using the DM179AP VUP SY version upgrade file Never turn off the power during version upgrade Otherwise this unit may not start up In such a case restore this unit ...

Страница 37: ...he MA 142 board flash flashing interval becomes shorter gradually and finally stay lit n If the indicator continues to flash for more than 1 minute the version upgrade is not successful Check that the correct version upgrade file is copied to the root of Memory Stick and the harness is orrectly connected Then perform the version upgrade again 6 Connect the harness connected in step 3 to the origin...

Страница 38: ......

Страница 39: ...itten in the Memory Stick inserted in this unit at the same time For details refer to Section 3 2 You can clear the error history by pressing the CLEAR and EXEC buttons simultaneously while TROUBLE menu is displayed After clearing the error information also clear the RECORD file in the Memory Stick n Be sure to clear the error history after replacing the mechanical main unit assembly DATA The past...

Страница 40: ... 3 2 Saving Function to Memory Stick When an error occurs in this unit the error information is automatically written in the Memory Stick inserted in this unit Also the error information is written in the Memory Stick by manually carrying out STORE IMAGE STORE in the menu of the main unit This error information is the same as the contents that can be checked in MECHA JIGU MODE It is suitable to be...

Страница 41: ...T_ The head cannot move from the print position HOME_TIMEOUT to the home position and time out occurs 0x0e HEAD_FEED1_ The head cannot move from the paper pick HOME_TIMEOUT position to the home position and time out occurs REC CODE DEC This is CODE displayed in decimal notation REC CODE HEX This is CODE displayed in hexadecimal notation The error codes are determined by this numeric value Items af...

Страница 42: ...ot be ejected from the feed sensor to the TIMEOUT outside during paper eject and time out occurs 0x5a PP_PRINT_TIMEOUT The print time is long and time out occurs 0x5b RESET_PRINT_ Paper cannot be moved from the jamming TIMEOUT sensor to this side during jamming processing and time out occurs 0x61 PP_LD_MISSING_ No paper is detected with the timing of ERR Paper exist in a feed sensor during paper f...

Страница 43: ... initialization state If the hundred s digit is 1 it indicates that the error did not occur during printing but it occurred during mechanical reset Example 107 Paper feed operation was performed during mechanical reset 3 5 Troubleshooting Head Thermal head FFC Flexible flat cable Trouble Cause Remedy A bottom plate jamming processing port switch is damaged Replace S141 on the SE 755 board The conn...

Страница 44: ...firm CN11 on the SU 84 board CN304 on the EX 970 harnesses are disconnected board CN21 on the SU 85 board CN204 on the MEC 24 board and the harnesses A driving gear and cam are damaged Replace the gear or cam A stepping motor is defective does not rotate Replace the stepping motor The connector of a stepping motor is out of position Confirm the connector of a stepping motor and CN204 on the MEC 24...

Страница 45: ...r is defective A switching regulator is defective Replace the switching regulator The tension of a timing belt is not proper Apply the tension of a timing belt again Dedicated paper is not used Use dedicated paper A stepping motor is out of order Apply the tension of a belt again The tension of a belt is not proper A head block is out of position Install the head block properly A platen roller is ...

Страница 46: ... A head block is out of position Install the head block properly Dedicated paper is not used Replace the paper used by dedicated paper A ribbon cartridge is defective Replace the ribbon cartridge A gear is damaged Replace the gear A stepping motor is out of order Apply the tension of a belt again The tension of a belt is not proper The tension of a belt is not proper Confirm the limiter T and S as...

Страница 47: ...tor A pickup roller is defective Replace the pickup roller A gear is damaged Replace the gear A feed guide assembly is damaged Replace the feed guide assembly An eject flap spring is out of position Install the eject flap spring again An eject flap is out of position and damaged Replace the eject flap The SE 752 board is defective Confirm CN111 on the SE 752 board CN105 on the MEC 24 board and the...

Страница 48: ......

Страница 49: ...of Sensors Motors and Mechanical Parts This section describes the location and functions of sensors motors and mechanical parts Refer to Section 1 for how to remove replace parts Index Item Page 4 1 Sensors and Motors 4 2 4 2 Mechanical Parts 4 2 ...

Страница 50: ... 6 Jamming detection sensor SE 753 board Detects the paper edge Transmission sensor SE 754 board 7 Bottom cover sensor Switch SE 755 board Detects that the bottom cover chassis cover is opened and closed 8 Front panel sensor Switch SE 756 board Detects that the ribbon door is opened and closed 9 Head thermistor Temperature detection _ of thermal head In unit thermistor SE 754 board Detects the tem...

Страница 51: ...rotates In the separation block paper is separated so that it is not fed one upon another and then sent between the grip roller and pinch roller After that the paper feed roller and paper is separated in certain timing The supply ribbon is locked and not pulled out 3 Carry position The pinch roller lowers and grips paper so as to perform paper sensing and return the paper at high speed The thermal...

Страница 52: ......

Страница 53: ...stment and capturing of a video signal the transfer of image data to a print processing block the rendering for monitor output OSD processing and video encoding The video signal processing block mainly consists of the following circuits Sync selector DDR SDRAM Video decoder Video encoder SOC CPU Video driver Flash memory 2 System control mechanism and print control block This block performs the im...

Страница 54: ...fier The video driver outputs RGB YCbCr Y C and composite signals The video driver has an internal band limitation filter Filtering of 8 MHz is performed 3 Sync driver IC1103 IC1103 is a sync driver IC1103 always outputs a composite sync signal 4 Peripheral circuits of SOC IC1101 1 Flash memory IC1201 IC1201 is 64 MB flash memory IC1201 stores a boot program and main program for IC1101 2 Memory St...

Страница 55: ...flash memory IC701 is executed when the power of this unit is turned on After the boot loader initializes a CPU clock internal PLL SDRAM and an IO port it copies the firmware stored in flash memory to SDRAM IC101 and IC102 and transfers control to the firmware in SDRAM After waiting that IC1101 which operates asynchronously starts a control command is sent through PLD IC1704 for communication betw...

Страница 56: ...lash memory device is used for only the write operation of image data It does not have a function that prints the read image The USB flash memory device is connected from the USB port of SOC IC103 to the USB terminal on the IF 988 board When the USB flash memory device is connected to a printer CPU detects the potential of VBUS and generates an interrupt A dedicated file folder SONY PRINTER IMAGES...

Страница 57: ...VBUS current limitation 174 GIO24 GIO24 O IC1101 reset output 173 GIO25 USB_PW_SW0 O Host VBUS power management 172 GIO26 MS_POWER O Memory Stick I O Power management 171 GIO27 _ O Empty 170 GIO28 _ O Empty 169 GIO29 LED_ALARM O Alarm LED 168 GIO30 IIC_SDA O I2 C data bus 167 GIO31 IIC_SCL O I2 C clock 133 RXD0 RXD0 I Used for debugging 134 TXD0 TXD0 O Used for debugging 135 RXD1 RXD1 I RS 232C RX...

Страница 58: ...M_FAN O Cooling fan in unit 114 PORT16 USB_ACC_LED O Host port access LED of USB 75 PORT17 ACCESS_LED O Debugging LED 29 PORT18 LED D251 O Debugging LED 146 PORT19 LED D252 O Debugging LED 76 PORT20 TAG_TXD O ICTAG I O 115 PORT21 TAG_RXD I ICTAG I O 30 PORT22 TAG_SCK O ICTAG I O 31 PORT23 TAG_nREQ O ICTAG I O 1 A driver circuit is controlled to drive a micro step motor by micro step mode 0 micro s...

Страница 59: ...ad strobe 79 nHED_LATCH nHED_LATCH O Head latch 33 HED_CLK HED_CLK O Head clock 32 HED_D0 HED_D0 O Head data 0 78 HED_D1 HED_D1 O Head data 1 117 HED_D2 HED_D2 O Head data 2 148 HED_D3 HED_D3 O Head data 3 149 HED_D4 HED_D4 O Head data 4 80 HED_D5 HED_D5 O Head data 5 119 HED_D6 HED_D6 O Head data 6 35 HED_D7 HED_D7 O Head data 7 36 HED_D8 HED_D8 O Head data 8 81 HED_D9 HED_D9 O Head data 9 82 HED...

Страница 60: ...To correctly reproduce print density a temperature is detected from two types of thermisters for the calculation of print data correction Thermal head temperature detection The voltage that was voltage divided by the thermister and fixed resistors R705 R706 and R707 installed in a thermal head is input to the A D pin of a printer dedicated circuit so as to detect a temperature In printer temperatu...

Страница 61: ... a connector CN602 For a liquid crystal display similarly LCD DP 407 board is connected to the I O port constituted by the 8 bit latch IC603 and IC605 and buffer IC604 assigned to the external memory address space of SOC IC103 via a connector CN601 A chip select signal is generated and controlled for these I O ports from IC103 using a printer dedicated circuit IC301 and PLD IC501 The contrast of L...

Страница 62: ...ve circuit Q204 on the MEC 24 board is turned on using the control signal from pin 134 of IC301 on the MA 142 board so as to drive a fan motor The fan motor rotates when a temperature reaches more than the fixed temperature during print and in the standby state In printer cooling fan motor drive circuit Q803 on the MEC 24 board is turned on using the control signal from pin 57 of IC301 on the MA 1...

Страница 63: ...rrent control and as the control input of motor drive output OFF During motor stop a motor drive current is turned off by inputting a voltage Vref of Vref 2 0 V from pin 45 of IC301 In this unit a grip roller and load roller are driven from a stepping motor through a belt For except during print and preheat the motor power is designed to be not applied by controlling the control line at pin 3 of C...

Страница 64: ...trolled to drive two motors using the control signal at pins 1 and 2 of IC301 on the MA 142 board DC motor drive circuit for ribbon winding The two motor drive circuits IC202 and IC203 on the MEC 24 board are controlled to drive two motors using the control signal at pins 94 and 51 of IC301 on the MA 142 board _ GND 12V 1 94 4 51 GND 5V 5 OUT2 2 IN2 1 IN1 4 GND 7 VCC 3 OUT1 M 6 VS _ GND 12V GND 5 ...

Страница 65: ...ction of paper Ribbon cue up detection sensor Head position sensor Type Photointerrupter sensor Function Discriminates the position of a thermal head Level Discriminated as shown below POSITION0 of POSITION1 of IC301 pin 53 IC301 pin 53 Head home Standby L L Head down Paper feed L H Head down Ribbon Y cue up and paper cue up L H Head down Y print L H Head up Ribbon M cue up and paper return L H He...

Страница 66: ...aper stack at the eject port Level IC301 pin 132 on the MA 142 board H Paper stack provided ALARM LED lights L Paper stack not provided Q102 R113 R116 GND R115 R114 Q101 132 R106 5V 5V NM C106 R111 PH111 4 3 2 1 C111 VDR111 IC301 C107 C112 TO CN803 MA 142 16 pin MA 142 MEC 24 SE 751 ...

Страница 67: ... Paper not provided Q102 R113 R116 GND R115 R114 Q101 PP_F_EDGE IC301 174pin IC301 87pin IC301 43pin IC301 175pin PP_B_EDGE RBN_MARK PP_IN R714 GND C91 C81 Q91 D81 R81 2 5V 5V C131 C121 Q131 D121 R121 C61 C71 Q61 D71 R71 C101 C161 Q101 D161 R161 TO CN803 MA 142 16 pin MEC 24 MA 142 SE 750 749 GND R715 GND 2 5V GND R716 GND 2 5V GND R717 GND 2 5V _ _ _ _ GND SE 754 753 SE 747 748 SE 751 762 ...

Страница 68: ...evel IC301 pin 18 on the MA 142 board H Analog level Paper provided L Analog level Paper not provided Q102 R113 R116 GND R115 R114 Q101 PP_F_EDGE IC301 174pin IC301 87pin IC301 43pin IC301 175pin PP_B_EDGE RBN_MARK PP_IN R714 GND C91 C81 Q91 D81 R81 2 5V 5V C131 C121 Q131 D121 R121 C61 C71 Q61 D71 R71 C101 C161 Q101 D161 R161 TO CN803 MA 142 16 pin MEC 24 MA 142 SE 750 749 GND R715 GND 2 5V GND R7...

Страница 69: ...n the MA 142 board H Analog level Paper provided L Analog level Paper not provided Q102 R113 R116 GND R115 R114 Q101 PP_F_EDGE IC301 174pin IC301 87pin IC301 43pin IC301 175pin PP_B_EDGE RBN_MARK PP_IN R714 GND C91 C81 Q91 D81 R81 2 5V 5V C131 C121 Q131 D121 R121 C61 C71 Q61 D71 R71 C101 C161 Q101 D161 R161 TO CN803 MA 142 16 pin MEC 24 MA 142 SE 750 749 GND R715 GND 2 5V GND R716 GND 2 5V GND R71...

Страница 70: ...color L Analog level Others Q102 R113 R116 GND R115 R114 Q101 PP_F_EDGE IC301 174pin IC301 87pin IC301 43pin IC301 175pin PP_B_EDGE RBN_MARK PP_IN R714 GND C91 C81 Q91 D81 R81 2 5V 5V C131 C121 Q131 D121 R121 C61 C71 Q61 D71 R71 C101 C161 Q101 D161 R161 TO CN803 MA 142 16 pin MEC 24 MA 142 SE 750 749 GND R715 GND 2 5V GND R716 GND 2 5V GND R717 GND 2 5V _ _ _ _ GND SE 754 753 SE 747 748 SE 751 762...

Страница 71: ...is opened Bottom plate sensor Type Mechanical sensor Function Detects the installation of the bottom plate in this unit The power of this unit is turned off when a bottom plate is not installed Level CN207 pin 7 on the MA 142 board H Power OFF L Power ON NM VDR151 S151 C151 C840 R858 IC803 3 3V SE 756 MA 142 3 2 1 GND TO IC301 MA 142 54 pin NM VDR141 S141 3 2 1 GND C203 R203 REMOTE ON OFF CN201 7p...

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Страница 73: ...commercial leakage tester such as the Simpson 229 or RCA WT 540A Follow the manufacturers instructions to use these instruments 2 A battery operated AC milliammeter The Data Precision 245 digital multimeter is suitable for this job 3 Measuring the voltage drop across a resistor by means of a VOM or battery operated AC voltmeter The limit indication is 5 25 V so analog meters must have an accurate ...

Страница 74: ...Sony Corporation 2010 7 08 2005 UP 55MD SY E 9 879 778 03 ...

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