Paragraph Page - Motorola R-20010 Maintenance Manual

TABLE OF CONTENTS (Cont)
Paragraph Page
3.3 EXTENDED ALIGNMENT PROCEDURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
4.1
4.2
4.3
6.1
6.2
7 .1
7 .2
8.1
8.2
3.3.1 DVM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
3.3.2 Distortion/ SIN AD Alignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8
3 .3.3 Receiver. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8
3 .3A
RF Synthesizer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9
3 .3.5 Frequency Standard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1 0
3 .3.6 Duplex Generators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11
3 .3.7 Wideband Amplifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11
3.3.8 Wattmeter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-19
3 .3.9 Scope Compensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-19
3.3.1
0
Cathode Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-19
SECTION 4. SYSTEM CHECKOUT AND TROUBLESHOOTING
INTRODUCTION .... . ..... . . . .. .... .... .. ...... .. . ............... ....... ... .
SAFE HANDLING OF CMOS INTEGRATED-CIRCUITS DEVICES .. . . ................... .
CHECKOUT AND TROUBLESHOOTING PROCEDURES . . ..... .... . ........ ......... .
SECTION 5. SYSTEM WIRELIST AND PARTS LIST- SYSTEM MOTHERBOARD (A19)
. (See LIST OF TABLES)
SECTION 6. HIGH-VOLTAGE POWER SUPPLY (A1)
DESCRIPTION . . .......... ........ . . ............ . .................... . ... . .
THEORY OF OPERATION ... ... ................ .. .... . .. . .... . . ... . ... ....... .
6.2 .1 Voltage Regulation Circuit .. .. .. .. ................... . .... ..... ........ .
6.2 .2 Multipliers ...... .. .... . .... . .. .... ... ... . .. .. .... ........ . ...... . .. .
6.2 .3 Intensity Modulator .............. .. .................... . ............. .
6.2.4
Focus Modulator . . ....... . .... .... . ... .. ........ . .... ..... . ......... .
6.2.5 Transient Protector (A 1 A2) ....... . ........ . ......... . ........ . . ..... .. .
SECTION 7. SCOPE AMPLIFIER BOARD (A2)
DESCRIPTION . . . . . ......... . ........................ . ......... ..... ..... . .
THEORY OF OPERATION .... . . . .................. . ...... .. . . . . ......... . .... .
7 .2 .1 Deflection Amplifiers ................. . . . .... .. ... . . . ................. .
7 .2 .2 Horizontal Timebase Generator ... .. ..... .... .. .. .. . . . . .. . . .. .. ... .... .. .
7.2 .3 Horizontal Switching .. . ... .. .. .... ...... ... . ..... . . .. ........ .... .. . . .
7 .2 .4 Z-Axis Modulator . .. ... ... . ... .. ............... . . . .. .. ... . . ...... . . . .
7 .2 .5 Intensity Control .. ..... .. . .. ... ....... .. ...... . .... . ............ . ... .
7 .2 . 6 Focus Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7 .2 .7 Astigmatism. Geometry, and Trace Rotation . . ....... ... . . . . ............... . .
SECTION 8. LOW-VOLTAGE POWER SUPPLY (A3-A6)
DESCRIPTION ........ .. .... . . . .. ... ... ........... . ......... .... .. .. .... . . .
THEORY OF OPERATION ........................ .. ... .... .. . .... ........ . . .. .
8.2 .1 Battery Charger Board (A3) . ... ... ... .. . ....... . .. .... . ...... ..... .. ... .
8.2 .2 Control Board (A4) ...... .. .. ..... .... .. ............ . ....... .... .. . .. .
8.2 .3 Output Board (AS) . . .. ... . .... ... ..... ...... ... .. ........ . . ...... . . . . .
8.2.4 Switcher Board (A6) .... . . .. . ........................ .. .... . ... ... ... .
8.2.5 Rear Panel ..................................... . .. . ... . ..... . . . .. . .
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4-1
4-1
4-2
6-1
6-1
6-1
6-1
6-1
6-1
6-1
7-1
7-1
7-1
7-1
7-1
7-1
7-2
7-2
7-2
8-1
8-1
8-1
8-1
8-3
8-4
8-4