Adjustment Procedure—2246 1Y and 2246 Mod A Service
c. Set leveled sine-wave generator output for a
six-division signal amplitude at 50 kHz.
d. CHECK—the displayed signal amplitude is at
least 4.2 divisions as the generator frequency is
increased to 100 MHz.
NOTE
If the displayed signal amplitude drops below
4.2 divisions at any frequency below 100
MHz, readjust Delay-Line HF Compensation
(step 20) with increased front-corner over
shoot.
e. Repeat the frequency setup and CHECK pro
cedure for VOLTS/DIV settings of 50 mV and
0.1 V.
f.
Move the test signal to the CH 2 input.
g. Set:
Vertical MODE
CH 2 (CH 1 off)
CH 2 VOLTS/DIV
10 mV
h. Repeat the complete bandwidth check pro
cedure for Channel 2.
24. CH 3 and CH 4 Bandwidth Check
a. Set:
Vertical MODE
CH 3 (CH 2 off)
CH 3 VOLTS/DIV
0.1 V
b. Move the leveled sine-wave generator signal to
the CH 3 input.
c. Set the generator output for a six-division signal
display at 50 kHz.
d. CHECK—the displayed signal amplitude is at
least 4.2 divisions as the generator frequency is
increased to 100 MHz.
e. Move the test signal to the CH 4 input.
f.
Set:
Vertical MODE
CH 4 (CH 3 off)
CH 4 VOLTS/DIV
0.1 V
g. Repeat the procedure for CH 4.
h. Disconnect leveled sine-wave generator.
5-11
Содержание 2246 1Y
Страница 13: ...2246A Service 7062 01 X The 2246 1Y or 2246 Mod A Portable Oscilloscope ...
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Страница 69: ...Theory of Operation 2246 1Y and 2246 Mod A Service 15 V 6081 07 3 32 Figure 3 4 Simplified Sweep Circuit ...
Страница 91: ...Theory of Operation 2246 1Y and 2246 Mod A Service 6081 12 6557 99 3 54 Figure 3 9 Power Supply block diagram ...
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Страница 278: ...Figure 9 5b Detailed 2246 1Y or 2246 Mod A block diagram part 2 R E ...
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Страница 304: ...A D D J U N 1991 ...
Страница 311: ...2246 1Y and 2246 Mod A Service WAVEFORMS FOR DIAGRAM 1 0 V r l III B f e I l i 6555 39 ...
Страница 314: ...15 14 13 12 11 10 9 8 7 6 5 12 11 10 9 8 7 AT117 A TI 271 1 2 3 4 5 6 6555 70 Figure 9 8 Hybrid pin identifiers ...
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Страница 321: ...2246 1Y and 2246 Mod A Service WAVEFORMS FOR DIAGRAM 2 SET READOUT CONTROL CCW OFF 6555 40 ...
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Страница 344: ...WAVEFORMS FOR DIAGRAM 5 2246 1Y and 2246 Mod A Service HORIZ MODE A A SEC DIV 2M S HOLDOFF MIN CCW ...
Страница 345: ...HORIZ MODE ALT A SEC DIV 2M s B SEC DIV 5 mS HOLDOFF MIN DELAY INTENSIFIED ZONE STARTS MIDSCREEN ...
Страница 347: ...BEV JUNE 1991 7062 18 ...
Страница 349: ...2246 1Y and 2246 Mod A Service WAVEFORMS FOR DIAGRAM 6 6555 43 I ...
Страница 354: ...A L B i C 1 D 1 E i F i G 1 2 3 4 5 6 7 8 2246 1Y AND 2246 MOD A _________A fc A A REV JUNE 1991 7062 19 ...
Страница 355: ...I BOARD LOCATION 8K 8J 8H 7H 8H 8H 7J 8D 7H 8H 8J 8J 7K 8K 10D 6L 6K 6L 6K 6G 5H I ...
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Страница 372: ...2246 1Y and 2246 Mod A Service WAVEFORMS FOR DIAGRAM 9 MORE ...
Страница 373: ... 6555 72 6557 88 ...
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Страница 376: ...SCHEM LOCATION BOARD LOCATION 2E 2B 7F 4B 4J 5D 3J 5C 4L 6D 3L 6C 5L 7D 3L 7D 3M 7D 5M 7D IB 1A 1C 1A 2B 1A 3B 1A ...
Страница 380: ...WAVEFORMS FOR DIAGRAM 10 ...
Страница 387: ...WAVEFORMS FOR DIAGRAM 11 6555 73 6557 48 ...
Страница 394: ...WAVEFORMS FOR DIAGRAM 12 2246 1Y and 2246 Mod A Service i f I S 1 f c i 4 i ...
Страница 395: ...WAVEFORMS FOR DIAGRAM 12 cont 2246 1Y and 2246 Mod A Service ...
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Страница 400: ...REV JUNE 1991 7062 39 ...
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Страница 406: ...B 2246 IV AND 2246 MOD A ...
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