Marantz 2270 - Table of Contents

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TABLE OF CONTENTS
INtrOdUCTION isi ee es ck ee eee ee eae ee ee eohises Puan aren eayb dnd Seales's GleiA averacaeoad ‘
Service Notes ........... Peg ase ety Sisre we Gleb dhacwry.e Cee Gand wteere S elkcee dale, eee waits
AME TUN GP: 25 oe cee eee ies OS Gk Sw ee eee eek wee aparece dt Bes Meee ease bod Mk eed ee
EM TUN GR e526 econ b ices etnies eke auere ee Lib ayawanats edible atave srt velvatte fete 8 ret whe
Phono and Tone Amplifiers ............ 00: c cece eee ene eens nr ee :
Power Amplifier ........... Sse SU woetedbta ae Sete ead raveee dara Sie Sisiy anes ath eae oo eee hs
Power Protection Circuit.......... SUMS Baie ee Ra BAe ere et ee OM ES a aoe ad a RE Sih ies
Speaker Protection Relay Circuit .................... Se eC ee Se rae
Suggestion for Trouble Shooting of Power Amplifier ........ aes varhan'e ratte. Sieh ee ie we ate oe
Voltage Conversion... 1.2.2... 0.0. c cece ete ee eee Pe gests fe and 4 ori Saas Sew alata orate
Test Equipment Required for Servicing ................. Hide e Gee wae Sao Shain hon ine Bye
AM Alignment Procedure ........... wate Roe ates eheg SS Genet aa be Sa eaten Be nual Shenae a
FM Alignment Procedure ........ 0.0. cece eee ect eee ee eee ee teeta tree nea
Stereo Separation Alignment ....... Sad Sedan We Ciey areata Solar aia at ous gs hasta eG sitar Scatiotane Wh
Muting: Circuit: AL GnMent es isi: bcc 62 c8 eie eS ew eles e per ele 8 ia ea a oie ee wD ee we wees
Audio Adjustment ............. Seles Grae ee we ee Gee eer ean bared Kays Aaa ads Oe
Parts List............. Awe gaara hoe Raa etsaN he: Bedale Soedavarte tes ee Evahe ark evades, Grararenetey
Specifications i iciw iia eis Bau seers bea hs ea ae Geen Bee Gee OA ee
OOH WKOKDOGO PAN aA aa
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LIST OF ILLUSTRATIONS ”
FIGURE NO PAGE (
1. Remove the Terminal Cover ......... 0. cece cece eee etter e eee ecceee §
2. Voltage Conversion Chart ........ 0. ee cee ee eee eet e eee teen cceee 7
3. Lissajou Figure on Oscilloscope ....... 0... cee eee eee tee teeta eee TM
4. Dial Stringing. ...... 2... cee eee apanar stnjaete aL grayerannperesetee susdcacaeatine niet TE
5. Front Panel Adjustment and Component Locations ........ bay dvetetridand feet ices Per (74
6. Main Chassis Component Locations (Top View) ............002ececeeeeeeees .. 12
7. Rear Panel Adjustment and Component Locations ..... sib aa 8 WictECages wiikede es Cate cas me NS
8. Main Chassis Component Locations (Bottom View) ........ bagel teed er aren .. 13
9. FM Front End Assembly P100 Component Locations..............02. 000 eee eee 14
10. FM 1F Amplifier Assembly P200 Component Locations ............... 00200000) 14
11. FM Detector Assembly P500 Component Locations . gpethotabteale, ek Siwadl (o0e Seer aatnaateleud 15
12. MPX Stereo Decoding Amplifier Assembly P300 Companeht Leearions ee ee eee ia 1D
13. Muting Control Amplifier Assembly P550 Component Locations ................ . 16
14. AM Tuner Unit Assembly P150 Component Locations .......... Maan Meee Pees 16
15. Phono Amplifier Assembly P700 Component Locations ............... 2200000 e 17 A
16. Tone Amplifier Assembly P400 Component Locations ............ 0.0.0 eee eee 17
17. Tone Control Unit Assembly P450 Component Locations ............. Bie ene Sans 18
18. Power Amplifier Assembly P750 Component Locations ............ ......+5. eae 19 ‘
-19. Regulated Power Supply and Protection Relay Circuit Assembly P800
Component Locations ..................-- aed Duaia ats. eared Hae RS ee a eee 20
20. Mono, High and Low Filter Switch Unit Assembly’ P600 Component Locations...... 21
21. Loudness, Muting and Speakers Switch Assembly P650 Component Locations....... 21
22. Schematic Diagram ................-- jostee MERE Ale tare tl A Bare MN eh eats 22