APPENDIX 4 SYSTEM MODE

EO1-33032

A4.8 Additional Information

A4.8.1 Self-Diagnostic Test Result Sample and Descriptions (Cont.)

Print Head Resistance Rank Table

Rank

Average resistance (ohm)

Rank

Average resistance (ohm)

0

1409 to 1454

4

1219 to 1265

1

1361 to 1408

5

1171 to 1218

2

1314 to 1360

6

1124 to 1170

3

1266 to 1313

7

1076 to 1123

(8)

DIP Switch Status

 

 

DIP SW

1: ON 2: OFF 3: OFF

(9)

Expansion I/O Interface Check

 

 

EXP.I/O

OK

Loopback test

OK: The circuit has no problem.

NG: The circuit has a problem or loopback jig is not attached.

Expansion I/O PC board

300Ω×5

1

2

3

4

5

 

12

 

 

15

 

 

 

∙ ∙

Connector: FCN-781P024-G/P

7 8

9

10 11

 

 

 

21

 

 

GND

300Ω Vcc

(10) DIN Connector for the Keyboard (KB-80) Check

KEY BRD OK

OK: The connector has no problem.

NG: The connector has a problem or loopback jig is not attached.

DIN Connector for the KB-80 keyboard

3

1

4 2

5

6

7

8

DIN Connector: TCS7588-01-201 Pin 3 and Pin 4 are short-circuited. Pin 5 and Pin 6 are short-circuited.

A4-23

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Image 73
Toshiba B-492L, R-TH10 owner manual Print Head Resistance Rank Table, Exp.I/O