Marantz 150 Service Manual
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Extracted text from Marantz 150 Service Manual (Ocr-read)
Page 1
marantl
model 150
Page 2
TABLE OF CONTENTS
SECTION PAGE
Introduction ---------------- 1
AM Tuner 1
FM Tuner ~ - 1
Scope Display Circuit 7
Scope Circuit Description ' 8
Power Supply Circuit """""" 9
Trouble Shooting of Oscilloscope Circuit 9
Scope Display Alignment """""""" 9
AM Tuning Display Alignment 10
FM Tuning Display Alignment 10
AM Alignment .............................. 10
FM Alignment ......................... _. 10
Stereo Separation Alignment 11
FM Dolby Level Adjustment 11
Test Equipment Required for Servicing 12
Parts List ............................ 23
Technical Specifications 33
Service Information for European Model ............................................................................. 35
LIST OF ILLUSTRATIONS
FIGURE PAGE
1_ Block Diagram of the H A1156 ................................................................................................ 3
2. Block Diagram of the Muting System 4
3. Discriminator DC Output 5
4. Muting Window 5
5. Dial Stringing 12
6. Front Panel Facilities Locations 13
7. Main Chassis Component Locations (Top View) 13
8. Rear Panel Adjustments and Facilities Locations 14
9. Main Chassis Component Locations (Bottom View) 14
10. AM Tuner Assembly P150 Component Locations 15
11. FM IF Amp. Assembly P200 Component Locations - 15
12. FM Multiplex Assembly P300 Component Locations 15
13. Power Supply Assembly P800 Component Locations 16
14. Scope Amp. Assembly P900 Component Locations 15
15. Ratio Detector Assembly PA01 Component Locations 17
16. Pre Amp. Assembly PD01 Component Locations 17
17. Selector Switch Assembly P301 Component Locations 18
18. Display Switch Assembly PT01 Component Locations 13
19. Antenna Att. Assembly PU01 Component Locations 18
20. Function Lamp Assembly PY01 Component Locations 18
21. Exploded Mechanical Diagram 9~20
22. Schematic Diagram ------------------- ~ 21~22
23. Beat Panel Adjustments and Facilities Locations for European Model 35
24. Main Chassis Component Locations (Top View) for European Model 35
25. Schematic Diagram for European Model - - 37~38
26. Voltage Conversion Chart 39
TABLE V PAG E
1. Test Equipment Required for Servicing ................................................................................. 12