Marantz 2230 Service Manual

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model 2230

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1:13 .083 I z

TABLE OF CONTENTS

SECTION , ' PAGE
Introduction . . . . . . . . .......... . ....... ................................... 1
Service Notes ........................... . ................................. 1
AMTuner....'.:.' ..... .......... ..... _ ....... ......__.., ...... . .............. 1
FM Tuner ....... - ............ . ....................................... ~2
Phono and Pre-amplifier . . ....... 4
Main Amplifier ................ i . 4
Power Supply ...... , ........... 5
'Audio Trouble Analysis ......... 7. . 5 I
Voltage Conversion . ., .............. '. . ................................ , ..... ' 5
Test Equipment Required for Servicing .................................. 7. . . . . . 7
AM Alignment Procedure ............................................... >. . . . 8'
HFMAIignmentProcedure ........................... ._ 8
_. ', Stereo separation Alignment ............ ' .................................... 8
Audio Adjustment .............................................. ' . . . . .1. . . 9
l-PartsList.................. ..... ' ................................... ' .'v.'..19
_'$pecifications................................................... ......... 28
' LIST.OF ILLUSTRATIONS
FIGURE - PAGE
1. Remove the Terminal Cover ...................................... .. . . . . 5 ,
'2.Vo|tageConversionChart..../..................................... ..... 6
3. Dial Stringing ........................ '. .v . . . . . ....... . ............. .'
4. Front Panel Adjustment and Component Locations .................... ~ ....... 10
5. Main Chassis Component Locations (Top View) ..... ~ ..................... v. .'. 10
6. Rear Panel Adjustment and Component Locations ..................... .. . . . . . 11
7. Main Chassis Component LocationslBottom View) ........................... 11
8. FM Front End Assembly P100 Component Locations . . . --,:= ........ L . . . . . . . . 12
9. FM IF Amplifier Assembly P200 Component Locations >. . .. ................... 12
10. FM Detector Assembly P500 Component Locations .' .................. > ........ 13
11. MPX Stereo Decoding Amplifier Assembly P300 Component Locations . . . . ; ..... . 13
12. Muting Control Amplifier Assembly P550 Component Locations ................. 14
13. AM Tuner Unit Assembly P150 Component Locations ......................... 14
14. Phono Amplifier Assembly P700 Component Locations ....................... 15
15. Tone Amplifier Assembly P400 Component Locations .................... y. . . . . 15
16. Tone Control Unit Assembly P450 Component Locations ........................ 16
' 17. Power Amplifier Assembly P750 Component Locations ........................ 17
_18. Regulated Power Supply Assembly P800 component Locations ............ . . . . 17

20. Schematic Diagram .............................................. . . . 18

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19. Loudness, High and Low Filter Switch Unit Assembly P600 Component Locations... 17