Parts/Service for WD-Y73732

Parts/Service for WD-Y73732

Brand: MITSUBISHI ELECTRIC

Category: TV

Document Type: Parts/Service

Language: EN

Uploaded: Nov. 21, 2025, 6 p.m.

Warranty Information

Replacement parts with special safety characteristics must be identical in value and characteristics.

This service manual provides service instructions for the V33Y and V33+ chassis type. It covers assembly and disassembly, servicing of screens and PCBs, electrical and mechanical adjustments, chip parts replacement, and circuit path diagrams. The parts list includes cabinet, screen, and electrical parts. Schematic and block diagrams are also included for better understanding of the circuitry. Service personnel should read this manual thoroughly before servicing these chassis.

Troubleshooting and error codes

Reset Name When to use How to use Resulting Action
Remote Control TV Layer Reset Returns the remote control TV layer to normal operation. (1) Set the slide switch to TV position. (2) Press and hold the POWER button until it flashes twice then release the button. (3) Enter the code 0 0 9 3 5. Once the valid code has been entered and confirmed, the remote control has been reset.
Remote Control TV Volume/Mute functions Returns the volume and mute functions of the remote control to TV volume and mute for TV, Cable/Sat, VCR and DVD layers after the audio lock for AV Receivers feature has been used. (1) Set the slide switch to TV position. (2) Press and hold the POWER button until it flashes twice then release the button. (3) Enter the code 9 9 3 VOL UP. The remote will now operate the TV's volume and mute when the slide switch is in the TV, CABLE/SAT, VCR or DVD positions.
A/V Memory Reset, single input When the audio and or video settings for a single input seems to incorrect MENU --> Audio/Video--> AV Reset All Audio and Video settings for the individual input are reset except for the Listen To and Language, Audio Balance and Closed Caption settings.
A/V Reset, all inputs To reset audio and video adjustments for all inputs to the original factory settings. While viewing the TV, press the front panel buttons GUIDE and FORMAT at the same time. All Audio and Video settings including Listen To and Language, Closed Captions settings and Format settings are returned to the original factory settings.
System Reset To reset the TV when it does not turn on or off, does not respond to the remote control, front panel buttons or has audio but no video. Press the SYSTEM RESET button on the front panel with a pointed object such as the point of pencil or end tip of a paperclip. The changes you made most recently, before using the SYSTEM RESET, may be lost. Changes you made previously, however, are not lost.
TV Reset To reset all customer settings Press MENU-1-2-3-ENTER All customer settings except V-Chip are reset.
Initialize - User Level To reset all consumer adjusted settings and memories to the original factory defaults. Press FORMAT and INPUT buttons on the front control panel at the same time. All memories and settings outlined in the Owner's Guide will need to be set again.
Initialize - Service Level To reset all consumer adjusted settings and memories to the original factory defaults. MENU + 2470. Highlight INITIALIZE and press ENTER All memories and settings outlined in the Owner's Guide will need to be set again. Also erases V-CHIP password
Factory Restore To recover from data/adjustment errors in the ISF menu MENU + 2457 + 0. Highlight RESTORE FACTORY DEFAULTS and press ENTER All service, user, ISF data is set back to factory defaults.
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