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

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