IBM 5100 - Page 38

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TAPE READ MAP
PAGE 26 OF 45
246
-Probe tape control card pin U02 (+tape clock).
Is the DOWN light on 7
Y N
247
-Probe F2-S09 (+tape clock).
-Leave the probe on the pin.
Is the UP light on?
Y N
248
Check/replace the tape drive cable (refer to
202).
249
Defective F2 (base I/O) card.
250
-Remove the F2 (base I/O) card from the board.
-Probe tape control card pin U02 (+tape clock).
-Leave the probe on the pin.
Is the DOWN light on?
Y N
251
Is the UP light on?
Y N
252
Defective tape control. card (refer to 202).
Check/replace the tape drive cable (refer
to
202).
253
Defective F2 (base I/O) card.
254
Defective tape control card (refer to 202).
Check/ replace the tape drive cable (refer to 202).
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2
5
MAP 03OQ-26
255
-:-Probetape control card pin U06 (-write enable)~
Is the DOWN light on?
Y N
256
,..Loop on this test (press L on the keyboard).
-Probe tape control card pin U06 (-write
enable).
Are both lights on?
Y N
2 2
9 7
o 0
y Z
257
Is the UP light on?
Y N
258
Defective F2 (base I/O) card.
Defective tape control card (refer to
202).
Check/ replace the tape drive cable
(refer
to 202).
259
-Probe F2-G03 (-write enable) .
. -Leave the probe on the pin.
Is the DOWN light on?
Y N
260
Defective F2 (base I/O) card.
261
Check/replace the tape drive cable (refer to
202).
28SEP76
PN 1608386
EC 829670 PEC 828851
MAP 0300-26
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