Toshiba 46RV530U User Manual

SERVICE MANUAL
LCD Color Television
46RV530U Rev.1
This model is classified as a green product (*1), as indicated by the underlined serial number.
This Service Manual describes replacement parts for the green product. When repairing this
green product, use the part(s) described in this manual and lead-free solder (*2).
For (*1) and (*2), refer to GREEN PRODUCT PROCUREMENT and LEAD-FREE
SOLDER.
© TOSHIBA CORPORATION 2008
For Technical Bulletins, Technical Tips, or other information regarding the
service of this model, visit the Toshiba America Consumer Products National
Service Division website at:
www7.toshiba.com

Toshiba 46RV530U Specifications

General

Screen Size	46 inches
Resolution	1920 x 1080
Display Type	LCD
Backlight Type	CCFL
Contrast Ratio	3000:1
Brightness	500 cd/m²
Response Time	8 ms
HDMI Ports	3
Component Video Inputs	1
Composite Video Inputs	1
Digital Audio Output	1
Weight	55.1 lbs
Dimensions (W x H x D)	42.6 x 28.4 x 3.5 inches
Native Resolution	1080p
Aspect Ratio	16:9
PC Input	Yes
Speakers	2 x 10W
Viewing Angle	178°

Summary

Important Information and Safety Guidelines

Green Product Procurement

Policy on using environmentally friendly parts and materials for repairs.

Lead-Free Solder Requirements

Mandates the use of lead-free solder for servicing this product.

General Servicing Safety Precautions

Essential safety measures before and during product servicing, including handling, wiring, and checks.

Product Safety Notice

Highlights safety-related characteristics of electrical/mechanical parts and the importance of using specified replacements.

LCD Module Handling Precautions

Guidelines for safely handling the LCD module to prevent damage from static, environment, or physical impact.

Service Mode Operations

Entering Service Mode

Step-by-step instructions on how to activate the service mode on the TV.

Selecting and Adjusting Items

How to navigate and modify settings within the service mode.

Exiting Service Mode

Procedure to turn off the TV and exit the service mode.

Panel and Firmware Configuration

Setting Panel Option and SET-ID Data

Procedure for configuring panel option and SET-ID data, especially for new main boards.

Firmware Update Process

Instructions for updating the TV's firmware using an SD card.

LED Blink Codes

Explanation of status indicators shown by the TV's green and yellow LEDs.

Power Distribution and Plug Layout

24V Inverter Supplies Pinout

Details the pinout for 24V inverter supplies on connector P861.

Main Board Connector Layout

Outlines connections from the main board to the inverter, NU Chassis, and LED/IR PCBs.

Power Board Connector Details

Details pinouts and voltage supplies for S-Power (P811A) and P-Power (P810A, P812A/B) boards.

AC Input and Standby Voltages

Shows AC input connection and standby voltage details for the P-Power board.

Troubleshooting: Dead Set

Power Board Voltage Checks

Diagnostic steps involving checking voltages on the power board (P860, P810).

PCB Suspect Diagnosis Flowchart

Flowchart for suspecting main, S-power, or P-power PCBs based on voltage readings.

Troubleshooting: Picture Problems

Backlight Functionality Check

Checks if the backlight functions normally when the unit is turned on.

Screen Discoloration and Streaks Diagnosis

Diagnosing issues related to screen discoloration, streaks, or dark areas without signal.

On-Screen Display Clarity Check

Verifying if the on-screen display is clear and normal when the input button is pressed.

LVDS Signal Detection

Using an oscilloscope to detect LVDS signals at CN60 on the Main PCB.

Troubleshooting: Backlight Problems

Backlight Function and Turn-Off Check

Checks if the backlight functions and then turns off.

Power Supply Voltage Checks for Backlight

Verifying 24VDC and 12VDC presence on power supply boards for backlight operation.

LVDS and Power Board Voltage Checks

Checks LVDS connection and 3.2VDC on P810A for backlight issues.

Troubleshooting: Sound Problems

Distorted or No Sound Diagnosis

Diagnosing issues related to distorted audio or complete absence of sound.

Input Selection and Audio Output Check

Checks if audio appears after changing input selection.

S-Power Supply Voltage Check

Verifying 18VDC on P811A of the S-power supply for sound issues.

Parts List and Precautions

Servicing Precautions

Warnings and cautions regarding servicing, including radiation, safety, and component replacement.

Parts Ordering Information

Note on using part numbers, model number, and description for ordering parts.