Phase Linear 4000 Series Manuals

Manuals and User Guides for Phase Linear 4000 Series. We have 1 Phase Linear 4000 Series manual available for free PDF download: Service Manual

Phase Linear 4000 Series Service Manual

Phase Linear 4000 Series Service Manual (52 pages)

Two preamplifier

Brand: Phase Linear | Category: Amplifier | Size: 6 MB

Table of Contents

Schematics
4
Layout Diagram
5
Pcb
5
Contents
6
Technical Specifications
7
Schematics and Diagrams
9
Block Diagram
10
Schematic Diagrams
11
Circuit Descriptions
28
Active EQ
28
Headphone Amplifier
28
Log Amplifier
28
Filter Board
29
Gate Board
29
Expander
29
Disassembly Procedure
31
Test Procedure
33
Energizing
34
Tape Functions
34
Main Outputs and Volume Tracking Test
34
Stereo/Mono, Separation
35
-20Db Switch
35
Peak Unlimit
35
Correlator
35
Infrasonic Filter
36
Balance
36
Tone Controls
36
Active Equalizer
36
High Level Noise
37
Headphone Output
37
Troubleshooting Guide
38
Power Supply Malfunction
38
Power LED will Not Light up
38
Incorrect DC Supply Voltage
39
Tape Circuit Malfunction
40
Malfunction of Main Outputs
40
Excessive Turn-On Time
40
No Signal at Main Outputs
40
Stereo/Mono Malfunction; Poor Separation
41
Volume Control Mistracking
41
-20Db Circuit Malfunction
42
Peak Unlimit Malfunction
42
Loss of One Channel
43
Excessive Noise in One Channel
43
Peak Unlimit LED out
43
Correlator Malfunction
44
Loss of Expansion
44
Loss of High or Low Frequencies
44
All High Frequency Gates down
45
One of Two High Frequency Gates down
45
Low Frequency Gate down
45
All Gates down
46
No Noise Reduction
46
Log Amplifier Adjustment and Correlator Sensitivity
46
Loss of One Channel/Excessive Noise in One Channel
46
Infrasonic Filter Malfunction
47
Channel Imbalance
47
Tone Circuit Malfunction
47
Loss of One of both Channels When Filter Is Switched in
47
Active Equalizer Malfunction
48
Excessive Noise in Phono Circuit
48
Loss of Channel When Tone Circuit Switched in
48
Tone Turnover Circuit Malfunction
48
Headphone Output Malfunction
49
Excessive Noise Not Affectd by the -20Db Circuit
49
Insufficient Output into an 8 Ohm Load
49
Parts List
50

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