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General| Brand | Denon |
|---|---|
| Model | UD-M31 |
| Category | Car Receiver |
| Language | English |
Check for leakage current or line to chassis resistance before returning the unit.
Steps to remove the top cover of the unit.
Steps to detach the front panel.
Procedure for removing the CD mechanism unit.
Steps to remove the rear panel.
Procedure to detach the main PWB.
Steps to remove the display PWB.
Guide to setting the CD test mode and button functions.
Procedure for disc discrimination and adjustment in test mode.
Steps to check servo states like laser, focus, and tracking.
Pinout and detailed functions for IC201 (μPD784216AGC-8EU).
Continuation of pinout and functions for IC201.
Final part of pinout and functions for IC201.
Functional block diagram for the LC78625E IC.
Pin numbers and assignments for the LC78625E IC.
Detailed pinout and functions for LC78625E.
Final part of pinout and functions for LC78625E.
Pin assignment for the LC75725E IC.
Pinout and functions for the LC75725E IC.
Pin assignment for the LA9241M IC.
Pinout and functions for the LA9241M IC.
Continuation of pinout and functions for LA9241M.
Pin assignment for the LA6559 IC.
Pinout and functions for the LA6559 IC.
Pin assignment for the LC75342M IC.
Block diagram and pin functions for LC72720NM IC.
Component view of the STK402-050 IC.
Block diagram for the BA6287F IC.
Block diagram for the 93LC66 IC.
Component view of the M51957BFP IC.
Grid assignment for the FL display.
Pinout and connection details for the FL display.
Component layout of the 1U-3498 Main Unit.
Foil layout of the 1U-3498 Main Unit.
Continued foil layout of the 1U-3498 Main Unit.
Component layout of the 1U-3507 CD Unit.
Foil layout of the 1U-3507 CD Unit.
Explanation of resistor and capacitor type codes and notations.
List of semiconductor components on the PWB.
List of resistor components on the PWB.
List of resistor components on the PWB.
List of resistor components on the PWB.
List of capacitor components on the PWB.
List of capacitor components on the PWB.
List of miscellaneous components on the PWB.
List of screw types and quantities.
List of semiconductor components on the CD PWB.
List of resistor components on the CD PWB.
List of resistor components on the CD PWB.
List of capacitor components on the CD PWB.
List of capacitor components on the CD PWB.
List of miscellaneous components on the CD PWB.
Illustrated exploded view of the unit's parts.
Key for remark symbols used in the parts list.
List of parts for the main PWB unit.
List of parts for the CD PWB unit.
List of screw types and quantities.
List of parts for the CD mechanism unit.
List of packing materials and accessories.
