IBM 5100 - Page 48

F
A
3
5
TAPE READ MAP
PAGE 36 OF 45
394
~Calibrate the CE meter (refer to 270).
~Measure greater than 1 vdc between tape
control card pin
010 (+ BOTPTX collector) and
tape control card pin
uoa (gnd) (refer to 227),
Is the voltage greater than 1 vdc7
Y N
395
Defective tape control card (refer to 202).
Defective tape LED-PTX assembly (refer
to
~02).
Check/replace the tape internal cable (refer to
202).
396
-If there is a cartridge in the tape drive, remove it.
-Remove tape control card (refer
to 20Z).
-Probe F2-UlO (-beginning
C)f tape).
-Leave the probe on the pin.
Is the DOWN light on 7
Y N
397
Is the UP light on7
Y N
398
Defective F2 (base I/O) card,
399
Defective tape control card (refer to 202).
400
-Disconnect the tape qrive cable from the board
(refer
to 228).
Is the DOWN light on?
Y N
3 3
6 6
F F
B C
A F F
~ ~ ~
6 6
MAP 0300-36
401
Check/ replace the tape driv\'l cable (refer to
202).
402
Defective
F2 (base I/O) card.
403
ERROR 918--STATUS ERROR.
Status indicates the the
LED used for detecting
BOT-EDT is
not on (status bit 5 was 0, should
have been
1).
NOTE: ALL PROBES OR METI:R TESTS FOR
THIS ERROR REQUIRE THAT THE GROUND
WIRE
OF THE PROBE OR METER BE
ATTACHED TO N2-p08 (GND).
(refer
to the appendix, the general logic probe),
-Probe F2-J13 (-
LED and eraSe ok).
Is the UP light on7
Y N
404
Defective F2 (base I/O) card,
405
-Probe tape control card pin 507 (- LI:O and
erase ok) (refer
to 227).
Is the UP light on7
Y N
3
7
F
D
406
Check/replace the tape drive cable (refer to
202).
~8SEP76
PN 1(i08386
EC8Z9670 PEC 828851
MAP 0300-36
o
o
o
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