4
Table of Contents
Product Specifications 5
Model 3200 5
Model 3350 6
Model 3500 7
Model 3800 8
Series Three Parts Lists 9
3200 PCB ASSEMBLY 9
3350 PCB ASSEMBLY 11
3500 PCB ASSEMBLY 13
3800 MAIN NPN PCB ASSEMBLY 15
3800 MAIN PNP PCB ASSEMBLY 16
3800 GAIN PCB ASSEMBLY 17
Series Three Power Amplifiers 18
Circuit Description 18
Block Diagram 18
Detailed Explanations 18
Troubleshooting Chart 23
Introduction 23
1. Current Draw Section 23
2. Protection Circuit Problems 24
3. Faults With Signal Present 25
Series Three Test Procedures: 29
Model 3200 29
Model 3350 31
Model 3500 33
Model 3800 35
Series Three Schematics 37
Model3200 37
Model 3350 38
Model 3500 Early Version 39
Model 3500 Late Version 40
Model 3800 41
Series Three PCB Drawings 43
Model 3200 PCB 43
Model 3350 PCB 44
Model 3800 46A PCB 45
Model 3800 47A PCB 46
Model 3800 48B PCB 47
Model 3800 Gain PCB 48
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