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TTP-248M/2410M Bar Code Printer
Service Manua

l

3.3 Reset Circuit

/RST

1

GND

2

VCC3

3

VCC5

4

VCCA

5

U10

LTC1728

VCC

VDD

VCCL

R2
3.4K

R3
3.0K

GND

R130
10K

C77

0.1uF

C78
0.1uF

GND

GND

VCC

RESET

GND

Fig. 3.3 Reset Circuit

This is the reset circuit. The LTC1728IC detects three kinds of DC Voltage (5V, 3V and
1.9V).
VCC3 (VCC, DC3V) input threshold is 3.086
VCC5 (VDD, DC5V) threshold is 4.675.
R2
VCCA ( R1+R3 ×VCCL, DC1V ) is 1.000

RST is reasserted whenever any one of the Vcc inputs drops below its predetermined
threshold and remains asserted until 200ms after all of the Vcc inputs are above their
thresholds.

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Содержание TDP 248M

Страница 1: ...TTP TDP 248M 2410M SERVICE MANUAL THERMAL TRANSFER DIRECT THERMAL BAR CODE PRINTER...

Страница 2: ...2 1 Types of Paper 8 2 2 Specification 8 2 3 Ribbon Specification 9 3 Circuit Description 10 3 1 MCU 10 3 2 MCU PIN Description 12 3 3 Reset Circuit 21 3 4 Memory System 22 3 5 Decoder Circuits 23 3...

Страница 3: ...pply Spindle 53 4 7 Replacing Label Rewind Spindle 54 4 8 Replacing Platen 55 4 9 Replacing Motor 57 4 10 Replacing Print Head 58 4 11 Replacing Print Head Pressure Adjustment Knob 59 4 12 Replacing G...

Страница 4: ...1 TTP 248M 2410M Bar Code Printer Service Manual 1 FOUNDAMENTALS ABOUT THE SYSTEM 1 1Printer Overview 1 1 1 Front View Fig 1 1 Printer Front View Aux LED LCD Display Printer Cover...

Страница 5: ...Thermal transfer and direct thermal Resolution 203 DPI Max Print Length 999 mm Max Print Width 104 mm Print Speed Selectable speed of 4 6 8 inch per second Environment Temperature 5 40 O C Humidity 3...

Страница 6: ...ps at max Inrush Current 40 Amps max cold start at 115 VAC input line voltage 80 Amps max cold start at 230 VAC input line voltage Electrical CPU HITACH SH 7709A TPH ROHM KF2004 GL41D 550 Stepping Mot...

Страница 7: ...Printer Function 1 5V RxD 2 3 2 TxD TxD 3 2 3 RxD DTR 4 20 4 DSR GND 5 7 5 GND DSR 6 6 6 RDY RTS 7 4 7 N C CTS 8 5 8 RDY 9 5V 1 3 Available Bar Codes Code 39 Code 39C Code 93 Code128UCC Code128 subse...

Страница 8: ...nt 3 16x24 Font 4 24x32 Font 5 32x48 Font 6 14x19 OCRB Font 7 21x27 OCRB Font 8 14x25 OCRA Font Width x Length EAN 1 7x10 EAN 2 14x22 EAN 3 21x33 EAN 4 28x43 EAN 5 35x52 EAN 6 42x64 EAN 7 49x74 EAN 8...

Страница 9: ...d of Font Fixed 32bytes Offset 0 B Bitmap font Offset 1 0 Fixed pixel 1 Variable Pixel Offset 2 0 Singed Byte Decode 1 Double Byte Decode Offset 3 Decode by table Offset 4 0 None 1 Italic Offset 5 6 F...

Страница 10: ...ont Data Font of variable printing spacing is two bite width of word in front of the data of every word BF3 4 VF3 4 Decode Table char low byte char high byte offset 4 bytes file start to font data The...

Страница 11: ...irect thermal type or thermal transfer type 2 2 Specification Item Specification Type Label Continuous die cut fan fold ticket Tag etc Label Width 19 118 mm 0 7 4 65 Label Length 10 999 mm 0 4 39 33 L...

Страница 12: ...ameter Less than 3 5 89 mm Roll Up Method Print surface wound outside as standard Note The maximum length of ribbon depends on its thickness and core outside diameter The formula below defines the cor...

Страница 13: ...0K R36 10K VDD 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 JP10 PANL R37 1K VDD R68 100 GND LCD_BL KEY1 KEY2 KEY3 LED1 LED2 LED3 YELLOW RED Q1 HSC945 12 13 U6F 74H...

Страница 14: ...figure below shows the PCB system area MCU Communication Port Decoder System Print Head Connector External Memory Connector Memory System Option A D Convert Option I O Sensor Connector Cutter System...

Страница 15: ...12 TTP 248M 2410M Bar Code Printer Service Manual 3 2 MCU PIN Description...

Страница 16: ...13 TTP 248M 2410M Bar Code Printer Service Manual...

Страница 17: ...14 TTP 248M 2410M Bar Code Printer Service Manual...

Страница 18: ...15 TTP 248M 2410M Bar Code Printer Service Manual...

Страница 19: ...16 TTP 248M 2410M Bar Code Printer Service Manual...

Страница 20: ...17 TTP 248M 2410M Bar Code Printer Service Manual...

Страница 21: ...18 TTP 248M 2410M Bar Code Printer Service Manual...

Страница 22: ...19 TTP 248M 2410M Bar Code Printer Service Manual...

Страница 23: ...20 TTP 248M 2410M Bar Code Printer Service Manual...

Страница 24: ...Fig 3 3 Reset Circuit This is the reset circuit The LTC1728IC detects three kinds of DC Voltage 5V 3V and 1 9V VCC3 VCC DC3V input threshold is 3 086 VCC5 VDD DC5V threshold is 4 675 R2 VCCA R1 R3 VCC...

Страница 25: ...1 A12 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 D0 D1 D2 D3 D4 D5 D6 D7 D8 D9 D10 D11 D12 D13 D14 D15 D0 D1 D2 D3 D4 D5 D6 D7 D8 D9 D10 D11 D12 D13 D14 D15 A13 A14 A15 A16 A17 A18 A13 A14 A15 A16 A17 A18...

Страница 26: ...ite through Area P3 0xE0000000 0 5 Gbytes control space non cacheable Area P4 Table 1 Cacheable address use Area P1 0x80000000 0x9FFFFFFF Non cacheable address use Area P2 0xA0000000 0xBFFFFFFF Progra...

Страница 27: ...Size 1M bytes 0xA0C00000 0xA3FFFFFF N C 0xA0C00000 0xA3FFFFFF Use by CPU Area 1 Internal I O 0xA8000000 N C Area 2 External I O 0xA8100000 Ribbon Near End Data Register 1 byte 0xA8200000 Centronics Da...

Страница 28: ...4 CS4 0xB4000000 0xB7FFFFF N C Area 5 CS5 0xB8000000 0xBBFFFFF N C Area 6 CS6 0xBC000000 0xBFFFFFF N C Reserved Area Table 2 3 7 Firmware Address Map Cacheable Address Flash 1 0x80000000 0x80001FFF Bo...

Страница 29: ...LCD Font Area 0x800D0000 0x800EFFFF Fixed Pitch Bitmap Font 0x800F0000 0x800FFFFF Variable Pitch Bitmap Font Table 3 SDRAM Address Map Cacheable Address SDRAM 0x8C000000 0x8C0F7FFF Main Program Area...

Страница 30: ...C69 100u 35V L21 0 VCCL R118 1 C16 0 1u C72 1500pF 5V 3 3V 1 9V 12 13 14 U5D LM324 VCC R4 30 9k R5 4 42k R6 10M AGND Analog Ground P_INT R7 4 42K R8 3 6K GND 1 5V C74 100uF C75 100uF C C21 10uF C22 2...

Страница 31: ...6 HSC945 Q7 IRF4905 Q8 IRF4905 VMM R48 10K R109 8 2 R49 10K R16 1K ANALOG GND C62 2200uF AGND BC33 0 1uF GND VDD 1 2 U7A 74HCT14 3 4 U7B 74HCT14 5 6 U7C 74HCT14 8 9 U7D 74HCT14 74LS14 CONNECT BY VDD A...

Страница 32: ...2200uF MGND MOTER_C GND 1 NC 2 NC 3 OUT2 4 Vs 5 OUT1 6 BOOT1 7 IN1 8 NC 9 GND 10 GND 11 NC 12 IN2 13 BOOT2 14 Vref 15 SENSE 16 ENABLE 17 NC 18 NC 19 GND 20 U12 L6201PS GND 1 NC 2 NC 3 OUT2 4 Vs 5 OUT...

Страница 33: ...der PIN 5 will decrease when the tension decreases it will increase If adjust the voltage of PIN 5 between tension 000 255 it will alter between 4 4V 3 7V 2 Selecting AUTO GAP to detect label will get...

Страница 34: ...GND VDD GND 8 9 U3D 74HC14 10 11 U3E 74HC14 5 6 7 U5B LM324 R65 100 GAP_E BM_E R26 10K R27 4 7K R66 100 10 9 8 U5C LM324 R126 100 MOTER_C VDD GND GND Q14 HSC945 Q15 HSC945 1 2 3 4 5 6 7 JP12 GAP_ U1 2...

Страница 35: ...12 Case sensor Print Head Lift Lever Open Sensor GND HEAD_OPEN VCC 1 2 3 4 JP15 4PIN R73 100 R50 10K 3 4 U4B 74HC14 R74 100 HEAD_SENS Fig 3 13 Print Head Lift Lever Open Sensor Circuit Ribbon End Sens...

Страница 36: ...it 3 12 Serial Port Circuit C1 1 V 2 C1 3 C2 4 C2 5 V 6 T2OUT 7 R2IN 8 R2OUT 9 T2IN 10 T1IN 11 R1OUT 12 R1IN 13 T1OUT 14 VCC 16 GND 15 U31 SP3232E C9 0 1u C10 0 1u VCC C11 0 1u C17 0 1u GND GND L7 BEA...

Страница 37: ...74HCT14 12 13 U6F 74HCT14 PC4 220p PC1 220p PC2 220p PC3 220p PR1 10K PR2 10K PR3 10K PR4 10K PR5 10K PR6 10K PR7 10K PR8 10K PR22 100 PR23 100 PR24 100 PR25 100 R17 10K GNDDIGITAL GND SELECT PE ERROR...

Страница 38: ...BB 16 U11 UDN3952DIP PHASE C58 820p C13 0 1u C59 1000uF MGND DIGITAL GND PHASE BK EN_CUTTER CUTTER CTSENS VCC R42 10K GND R106 0 25 1W MGND 1 2 3 4 JP33 4PIN Fig 3 17 Cutter Drive Circuit Pin 2 and 4...

Страница 39: ...witch Circuits 1 2 2PIN JP3 9 JP3 1 Fig 3 18 LTC490 and RS232 pin switch VCC GND 1 2 JP27 2PIN R95 10K U1 7 Fig 3 19 Download boot program to on board Flash memory pin switch 3 16 Connector Circuits 1...

Страница 40: ...D7 D8 D9 D10 D11 D12 D13 D14 D15 VCC GND WE RESET OE 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 J1 50P...

Страница 41: ...38 TTP 248M 2410M Bar Code Printer Service Manual U13 4 U12 4 U13 6 U12 6 C52 0 01uF C53 0 01uF R99 8 2 R100 8 2 1 2 3 4 JP14 4PIN STEPPING_MOTOR OUT1 OUT2 OUT1 OUT2 Fig 3 23 Stepping Motor Connector...

Страница 42: ...put control R134 1K R136 100 D14 1N4148 D13 1N4148 C81 0 1uF AVCC AVSS R133 1K R132 1K R135 100 D12 1N4148 D11 1N4148 C80 0 1uF AVCC AVSS R131 1K 1 2 JP26 2PIN 1 2 JP25 2PIN AD1 AD2 B_IN1 B_IN2 1 2 3...

Страница 43: ...UT2 1 2 3 4 Q9 Y210SB R78 330 1 2 JP23 2PIN 10 11 U7E 74HCT14 GND 1 2 3 4 Q10 Y210SB R79 330 1 2 JP24 2PIN 12 13 U7F 74HCT14 GND R123 10K R124 10K VDD VDD BUZZER_O Q1 HSC945 GND 1 2 JP11 BUZZ R40 10K...

Страница 44: ...41 TTP 248M 2410M Bar Code Printer Service Manual 4 MACHANISM 4 1 Remove the Covers and LCD Panel 1 Open Top Right Side Cover...

Страница 45: ...248M 2410M Bar Code Printer Service Manual 2 Loosen the screws used to fix Main Frame and Top Right Side Cover 3 Loosen the screws on Top Left Side Cover 4 Remove Top Right Side Cover and Top Left Sid...

Страница 46: ...43 TTP 248M 2410M Bar Code Printer Service Manual 5 Remove the LCD Panel and the Lower Front Cover Screws Screws...

Страница 47: ...44 TTP 248M 2410M Bar Code Printer Service Manual...

Страница 48: ...45 TTP 248M 2410M Bar Code Printer Service Manual 4 2 Replacing the Mainboard 1 Disconnect all harnesses 2 Remove the screws on Mainboard serial port Serial Port Mainboard...

Страница 49: ...46 TTP 248M 2410M Bar Code Printer Service Manual 3 Replace the Mainboard 4 Reassemble in the reverse procedures...

Страница 50: ...Service Manual 4 3 Replacing the Power Supply Unit 1 Disconnect all harnesses 2 Loosen the screws on the Power Supply Unit on the base of printer 3 Replace the Power Supply Unit 4 Reassemble in the re...

Страница 51: ...to the following figure 2 Take out the Compression Spring 3 Remove the Spindle Inner Washer 4 Remove the 1 Ribbon Spindle 5 Remove the Spindle Leaf Spring 6 Remove the Stainless Washer 7 Remove the Sh...

Страница 52: ...49 TTP 248M 2410M Bar Code Printer Service Manual 11 Loosen the fixing screws on the Motor 12 Remove the Belt and the Gear 13 Loosen the screws on the Cam Spindle Support Plate Screws Screws...

Страница 53: ...50 TTP 248M 2410M Bar Code Printer Service Manual 14 Remove Ribbon Rewind Spindle Support Plate the Cam Spindle Support Plate 15 Reassemble in the reverse procedures after replacing Screws...

Страница 54: ...out the Compression Spring 3 Remove the Spindle Inner Washer 4 Remove the Ribbon Spindle 5 Remove the Nylon Washer 6 Loosen the Hexagon Socket Headless Set Screws and Nylon Washer Support Plate 7 Remo...

Страница 55: ...Service Manual 9 Loosen the screws and remove the Ribbon Spindle Core and Spindle Support Plate 10 Reassemble in the reverse procedures after replacing Spring Support Plate Screws Spring Screws Spring...

Страница 56: ...sher 3 Remove the Label Spindle 4 Remove the Spindle Leaf Spring and Shaft Bearing 5 Remove the Nylon Washers 2 pieces 6 Remove the Label Guide 7 Loosen the Hexagon Socket Headless Set Screws 8 Remove...

Страница 57: ...r 5 Remove the 1 Label Spindle 6 Remove the Stainless Washer 7 Remove the Spindle Leaf Spring 8 Remove the Shaft Bearing 9 Remove the Felt Fabric 10 Remove the Label Guide 11 Remove the Felt Fabric Su...

Страница 58: ...55 TTP 248M 2410M Bar Code Printer Service Manual 4 8 Replacing Platen 1 Remove the Stripper Rewind Plate Stripper Rewind Plate...

Страница 59: ...Service Manual 2 Remove the Tab Core and Right Support Plate 3 Remove the Belt and the Gear 4 Remove the Platen and Left Shaft Bearing 5 Reassemble in the reverse procedures after replacing Support P...

Страница 60: ...248M 2410M Bar Code Printer Service Manual 4 9 Replacing Motor 1 Loosen the fixing screws on the Motor 2 Remove the Belt and the Motor 3 Remove the Gear 4 Reassemble in the reverse procedures after re...

Страница 61: ...Bar Code Printer Service Manual 4 10 Replacing Print Head 1 Remove the screws on the Print Head 2 Disconnect the Printer Harnesses 3 Remove the Print Head 4 Reassemble in the reverse procedures after...

Страница 62: ...Bar Code Printer Service Manual 4 11 Replacing Print Head Pressure Adjustment Knob 1 Remove A B C D in order 2 Loosen M4 screw knob and E 3 Reassemble in the reverse procedures after replacing E D C...

Страница 63: ...lacing Gap Black Mark Sensor 1 Disconnect the wires of Gap Black Mark Sensor 2 Loosen screws of the Tab Core on Print Mechanism Lower Frame 3 Move the Gap Black Mark Sensor to the right side and press...

Страница 64: ...61 TTP 248M 2410M Bar Code Printer Service Manual 4 Reassemble in the reverse procedures after replacing...

Страница 65: ...ar Code Printer Service Manual 4 13 Replacing Ribbon End Sensor 1 Disconnect the connectors of Ribbon End Sensor 2 Remove the screws on the Ribbon End Sensor 3 Reassemble in the reverse procedures aft...

Страница 66: ...e Printer Service Manual 4 14 Replacing Print Head Lift Lever Sensor 1 Disconnect the Harnesses of Print Head Lift Lever Sensor 2 Remove the Print Head Lift Lever Sensor 3 Reassemble in the reverse pr...

Страница 67: ...nt Head 11 98 0160013 00 Gap Black Mark Sensor 12 98 0160014 00 Ribbon End Sensor 13 30 0160029 00 Pressure Adjustment Shaft 14 32 0160049 00 Pressure Adjustment Attachment 2 15 36 0160008 00 Felt Fab...

Страница 68: ...65 TTP 248M 2410M Bar Code Printer Service Manual 1 8 10...

Страница 69: ...66 TTP 248M 2410M Bar Code Printer Service Manual 5 4 3 2 6 7 9...

Страница 70: ...67 TTP 248M 2410M Bar Code Printer Service Manual 13 14 15...

Страница 71: ...68 TTP 248M 2410M Bar Code Printer Service Manual 11 12 16...

Страница 72: ...the ribbon sensor No paper 1 Running out of label 2 The label is installed incorrectly 3 The moveable gap black mark sensor is not placed in the proper location 1 Supply a new label roll 2 Please refe...

Страница 73: ...setting is not consistent between host and printer 2 The serial port cable pin configuration is not pin to pin assignment 1 Please reset the serial port setting 2 Please replace the cable with pin to...

Страница 74: ...ting Message is shown on the LCD display The printer will calibrate the gap black mark sensor automatically 6 3 Self test To initiate the self test mode depress the MENU button Press MENU button to sc...

Страница 75: ...atically to test the available memory If any error occurs during this period the ERR light will flash Do the self test and inspect the test pattern to check if the Print head is available 6 6 Cleaning...

Страница 76: ...TAIWAN SEMICONDUCTOR CO LTD 11F No 205 Sec 3 Beishin Rd Shindian City Taipei Taiwan R O C TEL 886 2 8913 1588 E mail printer mail ts com tw FAX 886 2 8913 1808 Web Site http www tscprinters com...

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