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Tandy 1400LT Service Manual page 114

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User manual (86 pages)

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@ DC/DC Converter Check

Check output voltage

t12, -12, -15V

Check input voltage

Battery

:12V-l5V

AC adapter:15V-20V

YES

I

Check the battery

or AC adapter

Check F500 (Fuse)l

Check TR508

orrnal

N O

b

1

Change F500

I

Check output voltage

3

I

Check TR511

I

I

Check the DC/DC converter]

5-5

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Troubleshooting

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