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7-2. Keyboard

KO1

KO2

KO3

KO4

KO5

KO6

KO7

KO8

FEED

X

6

5

4

CA

M

/

9

8

7

M

G*

.

0

C

MU/MD

M+

 / #

+

3

2

1

%

M–

IT

TIME

00

000

KI1

KI2

KI3

KI4

KI5

KI6

Summary of Contents for DL-220BAGY

Page 1: ...R without price DR 120XA LX 224C D DL 220BAGY LX 224I DR 320A LX 224B SEP 1995 DR 120XA INDEX ...

Page 2: ...CONTENTS 1 SPECIFICATIONS 1 2 BLOCK DIAGRAM 1 3 CPU MN15418YCY PIN FUNCTION 2 4 DIAGNOSTIC 3 5 TROUBLESHOOTING 4 6 DISASSEMBLY VIEW 5 7 SCHEMATIC DIAGRAM 6 8 PARTS LIST 10 ...

Page 3: ...nal Timing pulse Digital signal D1 D13 Motor control signal VDD VSS Sent signal S1 S7 SAP SDP SO1 SO7 SI1 SI3 SI5 KO1 KO8 KI1 KI6 VIM VDD 1 SPECIFICATIONS Roll paper size Width 57 58 mm Ink ribbon Red Black RB 02 Green Black GB 02 Power source AC 100 120 220 or 240 10 V 50 60 Hz Refer to the operation manual for other specifications 2 BLOCK DIAGRAM ...

Page 4: ...ctive signal for printer P70 P73 P80 P82 31 32 P83 P90 Out Segment signal for display Character selective signal for printer 33 39 P91 P93 Out Common signal for slide switch PA0 PA3 Segment signal for display 40 P60 In Input port VDD 41 43 P61 P63 In Signal from slide switch 44 56 PB0 PB3 Out Digit signal for display PC0 PC3 PD0 PD3 PE0 57 VPP In GND terminal 58 VDD In VDD terminal 33V 59 60 OSC1 ...

Page 5: ...13 14 15 16 17 18 19 20 21 22 23 24 4 DIAGNOSTICS MODE SWITCHES ON F 6 ON F 6 ON F 6 ON F 6 ON CUT 6 ON CUT 6 ON CUT 6 ON CUT 4 ON UP 3 ON 5 4 2 ON 5 4 1 ON 5 4 0 ON 5 4 ADDX ON 5 4 ADDX PRINT 5 4 ADDX PRINT 5 4 ADD PRINT 5 4 ADD ITEM 5 4 ADD ITEM 5 4 ADD ITEM 5 4 ADD ITEM 5 4 ADD ITEM 5 4 ADD ITEM 5 4 ADD ITEM 5 4 ADD DISPLAY 100 0 88 8888888888 88 888888888 0 0 1234567 M 0 123456 M 0 1234 M 0 12...

Page 6: ...Check detector of printer block and timing signal Secondary voltage of transformer Waveforms of each pin VF1 VF2 Signal D1 S1 Between LSI and display tube Trouble Cause Checkpoint Note 5 TROUBLESHOOTING Defective power transformer Defective LSI No voltage at VF1 VF2 No digit signal or no segment signal Defective display tube Poor voltage VM Defective motor Defective LSI Short or open circuits betw...

Page 7: ... 8 7 9 10 11 12 13 15 16 17 18 19 20 21 23 22 24 25 26 19 Power Cord Projection side Black Projection side Marking side Brown Blue Brown Blue Transformer Yellow Black Blue Black Black White Black Red Connection Voltage 100V 120V 220V 240V ...

Page 8: ... 6 7 SCHEMATIC DIAGRAM 7 1 Main board ...

Page 9: ... 7 7 2 Keyboard KO1 KO2 KO3 KO4 KO5 KO6 KO7 KO8 FEED X 6 5 4 CA M 9 8 7 M G 0 C MU MD M 3 2 1 M IT TIME 00 000 KI1 KI2 KI3 KI4 KI5 KI6 ...

Page 10: ... 8 7 3 Slide Switch Board OFF ON PON IT IT F CUT UP 5 4 6 4 3 2 1 0 ADDX ADD SO1 SO2 SO3 SO4 SO5 SO6 SO7 VSS SI5 SI3 SI2 SI1 MODE SWITCH ...

Page 11: ...T3 T4 T5 T6 T7 T8 T9 T10 T11 T12 8 0 7ms max 0 7ms max 80 0ms min 0 7ms max 0 7ms max 8 0ms min 2 0ms min TS T 0 0 2ms max Typ 285 7ms 2 1 7 4 Printer Pin Arrangement Diagram Notes 1 Column numbers match the physical arrange ment of the columns on the print wheels 2 Column numbers are as signed from 1 to 18 from the frame motor side 3 Pin numbers are as signed from 1 to 27 from the frame motor sid...

Page 12: ...0V 20 80 2 2 2 R1 Carbon film resistor 6 8Kohm 1 2W 5 1 1 1 R2 Carbon film resistor 3 9Kohm 1 2W 5 1 1 1 R5 Carbon film resistor 3 3Kohm 1 4W 5 1 1 1 R6 Carbon film resistor 15Kohm 1 4W 5 1 1 1 R7 Carbon film resistor 1Kohm 1 4W 5 1 1 1 R8 Carbon film resistor 3 6Kohm 1 4W 5 1 1 1 R9 Carbon film resistor 470ohm 1 4W 5 1 1 1 R10 Carbon film resistor 270ohm 1 4W 5 1 1 1 R11 Carbon film resistor 390o...

Page 13: ... 3307 Printer cushion M4K3791 4 4 4 10 X 20 6053 7390 Paper cutter V298 P310311 1 1 1 1 10 B N 21 6055 1951 Display panel L224B P210317A 10 0 1 0 5 C N 21 6055 1961 Display panel L224C P210317A 11 1 0 0 5 C N 21 6055 2151 Display panel L224I P210317A 14 0 0 1 5 C 22 6053 7400 Lower case V298 P110128 1 0 0 1 1 X 22 6053 7410 Lower case V298B Gray P110128 2 1 1 0 1 X 22 6053 8930 Lower case V298C Wh...

Page 14: ...8 11 10 Nishi Shinjuku Shinjuku ku Tokyo 160 Japan Telephone 03 3347 4926 ...

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