IBM 5100 - Page 49

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TAPE READ MAP
PAGE 37 OF 45
407
-Calibrate the CE meter (refer to 270).
-Measure greater than
+8 vdc between tape
control card pin
B11 (+ LED conducting) and
N2-POB (gnd).
Is the voltage greater than +8 vdc 7
Y N
408
-Measure +12 vdc between tape control card
pin
D11 (+12 vdc) and N2-POB (gnd).
Is
the voltage in tolerance (+11.0 vdc to
+13.2 vdc)7
Y N
409
(Entry Point C)
-Measure +12 vdc between
tape control
card pin 511
(+12 vdc) and N2-POB (gnd).
Is the voltage in tolerance (+11.0 vdc to
+13.2 vdc)?
Y N
410
'-If there is a cartridge in the tape drive.
remove it.
-Remove tape control card (refer
to
202).
-Measure + 12 vdc between tape cOntrol
card pin 511 (+12 vdc) and N2-P08
(gnd).
Is the voltage in tolerance (+11.0 vdc
to +13.2 vdc)?
Y N
3 3 333
8 7 7 7 7,
F F F F F
E F G H
J
F F F F
F G H
J
3 3 3 3
7 7 7 7
MAP 0300-37
411
-Install the tape control card (refer to
202).
-Measure
+12 vdc between F6-D02 (+ 12
vdc) and
N2-POB (gnd).
Is the voltage in tolerance (+11.0 vdc
to +13.2 vdc17
Y N
412
-Measure +12 vdc between C1-D13
(+ 12 vdc) and N2-POB (gnd).
Is the voltage in tolerance (+11.0
vdc to +13.2 vdc)7
Y N
413
+ 12 vdc is not in tolerance.
Go to MAP 0700, Entry Point A.
414
Repair the open connection between
C1-D13 and F6-D02 .
415
Check/replace the tape drive cable
(refer
to 202).
416
Defective tape control card (refer to 202).
417
Defective tape control card (refer to 202).
418
Defective tape LED-PTX assembly (refer to 202).
Check/replace the tape internal cable (refer
to
202).
28SEP76
PN 160B386
EC 829670 PEC 828851
MAP 0300-37