© 2007 Toshiba America Consumer Products, LLC. SMART2007003_Version 20Q DLP_1.0.4

Technical Service Information S.M.A.R.T.

Service Material and Reference Tips

Product: 2007 DLP Television Date: 07/05/2007 Models: All 2007 DLP Televisions Doc Ref/File: SMART200703_Version 20Q DLP_1.0.4 Purpose: The purpose of this document is to give the service provider troubleshooting information designed to expedite the diagnosis and service process to modular level for Toshiba DLP televisions (2007 Model Year). [The information contained within the document will evolve over time so a version number has been indicated in the document name. The servicer should always use the latest version available.] Feedback: Please provide any comments or suggestions about this document to technical_support@tacp.com. When commenting please provide the document and version number on all correspondence.

1 of 12 © 2007 Toshiba America Consumer Products, LLC. SMART2007003_Version 20Q DLP_1.0.4

Using the Links for Rapid Access (ADOBE FORMAT ONLY)

Linking from Table of Contents to Specific Page When a specific page is desired for immediate viewing, merely double-click on the page title. See Table below (shown high-lighted for example only).

Table of Contents Part I 2007 DLP Page Using this PDF document………………………………1 Board Layout & Interconnect Diagram ……………….2 Connector Location Layout…………………………….3 Printed Circuit Boards (Photo) ………………………...4 Part II Diagnostic Aids Isolating the Light Engine………………………………4 LED Status Indications………………………………….6 Part III Standby Voltages – 2 Charts…………………………..7 Plan “B” Troubleshooting ………….………….. ……...8 Dead Set Flowchart…….……………………………….9 Video Verification..……………………………………..10 Video Test Points………………………………………11 Audio Verification………………………………..……..12 Part IV Parts Listing Replacement Lamp Listing……………………………15 Model to Module Cross References………………….15

To return to the Table of Contents, “Click” on the “Return to” box.

To link from one point to another, “Click” on the available box. To return to the original (Last) view, “Click” on the appropriately labeled box.

Return to Table of Contents

Return to Last View

Click here to continue

EXAMPLE ONLY

2 of 12 © 2007 Toshiba America Consumer Products, LLC. SMART2007003_Version 20Q DLP_1.0.4

Table of Contents

Part I 2007 DLP Page Using this PDF document………………………………1 Table of Contents and Board Layout………………….2 Interconnect Diagram ………………….……………….3 Connector Location Layout.……………………………4 Part II Diagnostic Aids Isolating the Light Engine……………………………….5 LED Status Indications………………………………….7 Dead Set Flowchart……………………………………..8 Video Verification..………………………………………9 Video Test Points……………………………………….10 Audio Verification………………………………..…….. 11 Part III Parts Listing Replacement Lamp Listing…………………………….12 Model to Module Cross References…………………..12

Board Layout

3 of 12 © 2007 Toshiba America Consumer Products, LLC. SMART2007003_Version 20Q DLP_1.0.4

4 of 12 © 2007 Toshiba America Consumer Products, LLC. SMART2007003_Version 20Q DLP_1.0.4

5 of 12 © 2007 Toshiba America Consumer Products, LLC. SMART2007003_Version 20Q DLP_1.0.4

HM67

Short test pins

HM167

Short pins

Part II

Isolating Main Chassis from Light Engine There is a convenient way to determine if the light engine is functioning. A set of “Test” pins have been installed on the Formatter board. The photo below shows the pin locations on the HM67 models.

The photo below shows the pin locations on the HM167 models.

6 of 12 © 2007 Toshiba America Consumer Products, LLC. SMART2007003_Version 20Q DLP_1.0.4

Isolation Procedures

Follow Precise Order

1. Turn the set “on”. 2. Once the set is running, remove AC power. 3. Short and hold test pins shown above. 4. Press and hold “volume down” and “input” buttons simultaneously on

set. 5. Apply AC power.

a. The chassis will supply power to the light engine. . b. There will be a blinking yellow LED (~10-15 seconds).

c. The blue LED will light (solid). d. Following a short delay, the color bar pattern will appear.

6. Once the color bar pattern appears, remove short and release “Input” and “Volume Down” buttons.

7. To exit the “Test mode”, remove AC power.

7 of 12 © 2007 Toshiba America Consumer Products, LLC. SMART2007003_Version 20Q DLP_1.0.4

8 of 12 © 2007 Toshiba America Consumer Products, LLC. SMART2007003_Version 20Q DLP_1.0.4

Dead Set Troubleshooting

It has been determined that the set is “Dead”. All preliminary questions

have been answered. It is time to take some voltage checks.

Remove the set from the wall outlet for 10-15 seconds and plug back in.

Do not attempt to turn it on at this time.

5V On PB80Pins 6 & 7?

No

Power SupplyYes

Push Power Button.

3V On PB80Pin 2?

No

Yes

2.6V on PB80Pin 3?

Main Module

Yes

Power Supply

No

Main Module

9 of 12 © 2007 Toshiba America Consumer Products, LLC. SMART2007003_Version 20Q DLP_1.0.4

Main Board(AVIO Board)

Power SupplyRegulator Bd.

Audio OutBoard

Seine(Digital)Module

Use chassis ground,set scope on 10 Usec, .2V, and check pin 20

for video.

Verifying Video to Seine Module The photo below illustrates verification of video entering the Seine module. Pin 20 of PB103 on the Main Board is the test point being used. Pin 20 is the fourth pin from the top on the connector.

10 of 12 © 2007 Toshiba America Consumer Products, LLC. SMART2007003_Version 20Q DLP_1.0.4

The drawing below is showing Y,Cb,Cr test points (from main PCB to Seine PCB) and the test point for NTSC Tuner Video (PK05).

11 of 12 © 2007 Toshiba America Consumer Products, LLC. SMART2007003_Version 20Q DLP_1.0.4

Verifying Audio Distorted audio can be approached using the drawing below and an oscilloscope, signal tracer, or signal injector. Inputs to the Audio Output board can be scoped on pins 2 and 6 of P860A or B. Signal injection and/or signal tracing can also be applied to pins 2 and 6. A missing audio symptom can be scoped at pins 2 and 6. DC voltage readings can be taken at pins 8 and 9. The normal state of pins 8 and 9 are 0VDC. Missing waveforms on pins 2 and 6 or a DC level on pins 8 or 9 will tell us the Audio Output board is not at fault.

Pins 1 – 4 and pin 9 of PB81B or A can be checked for proper voltages to the Audio Output board and scoped for distortion causing ripple. Pins 2 and 4 of P106 can be scoped for distortion. The grounds to be used are pins 1 and 3, respectively.

12 of 12 © 2007 Toshiba America Consumer Products, LLC. SMART2007003_Version 20Q DLP_1.0.4

Part III

2004 – 2007 Model YearsModel-to-Lamp Cross Reference

44NHM8442HM84

2004 AZ6840202004 23311082A

46HM9546HM95-Green

20052005

2331115323311153

46HM15 2005 2331115352HMX85 2005 2331115352HMX85-Green 2005 2331115352HMX95 2005 2331115352HMX95-Green 2005 2331115352HM95 2005 2331115352HM95-Green 2005 2331115356HM195-Green 2005 2331115356MX195-Green 2005 2331115362HM15A-Green 2005 23311083A62HMX85 2005 2331115362HMX95 2005 2331115362HMX95-Green 2005 2331115362HM15A 2005 23311153

62HM85 2005 2331115362HM95 2005 2331115362MX195-Green 2005 2331115362HM95-Green 23311153200572HM195-Green 2005 2331115372MX195-Green 2005 2331115342HM66 2006 23311083A50HMX96-Green 2006

7251401172514011

50HM66-Green 200656HMX96-Green 2006 7251401156HM16-Green 2006 7251401156HM66-Green 2006 7251401162HM116-Green 2006 72514012

62HM196-Green 2006 7251401262MX196-Green 2006 72514012

50HM67 200757HM67

200757HM117/1672007

65HM67 200765HM117/167 2007

62HM195 2005 2331115362HM195-Green 2005 23311153

7500711075007110750070917500711075007091