Marantz DA-12 Manuals

Manuals and User Guides for Marantz DA-12. We have 1 Marantz DA-12 manual available for free PDF download: Service Manual

Marantz DA-12 Service Manual

Marantz DA-12 Service Manual (67 pages)

Compact CD player System

Brand: Marantz | Category: CD Player | Size: 6.49 MB

Table of Contents

Schematic Diagram
3
Exploded View
5
Table of Contents
9
How to Use the Manual
9
PW Boards
11
Laser Radiation Safety
11
Notes on Electrostatic Damage
12
Transportation Screws
12
Electrical Measurements and Adjustments
13
Initiation of the Servicing Program of the Μp
13
Adjusting the Laser Supply
13
Adjusting the Focus Bandwidth
13
Faultfinding Method
14
Measurements on Op-Amps
14
Stimulating with "0" and "1"
14
Conditions for Injecting
14
General Checkpoints
15
Detailed Troubleshooting Method
15
Irregular Working of the Display
15
Indication of Checkpoint
15
Test Method
16
Testing of Circuit, between Test Point and Focusing Coil
17
Testing the Subchassis
17
Check the MC Signal
19
Check the HF Signal on Test Point
19
Check the CEFM Signal
19
Check the Timing Signals Meant for Filter-B
19
Check the EFAB Signal at Test Point
20
Check the Q-Channel Signals
20
Check the SSM Signal
20
Check the Subcode Clock Signals
20
Check the Signals between Decoder-A IC and Filter-B IC
21
Check the DOBM Signal (Digital Output)
21
Check the MUSB Signal Test Point
21
Selftest of the FTS Μp
21
Check of Laser Supply Control
22
Fine Adjustment of Laser Current
22
Checking D-Factor
22
Checking K-Factor
22
Checking RF Pre-Amplifier
23
Dynamic
23
Servo
24
Block Diagrams Wards Information
26
Loading Tray Mechanism
27
Twin PLL with Memory Method
29
Circuits Motion
29
Parts Locations
30
Digital Signal Error Muting
31
Input Selector Switching Muting
31
Analogue Muting
33
Input/Tape Monitor Changeover
34
Jitter Killer Circuit
34
Exploded View and Parts List
39
Electrical Parts List
47
Specifications
53

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