Mitsubishi Electric WD-52525, WD-52825, WD-62525, WD-52725, WD-62725 Instructions Manual

V26 Chassis

Part Replacement Instructions

• Optical Engine

• Electrical Chassis

• HDD (PVR)

• PWB’s

2004

MITSUBISHI DIGITAL ELECTRONICS AMERICA, INC.

Copyright © 2004 Mitsubishi Digital Electronics America, Inc.

V26 V26+ V26++

WD-52525 WD-52725 WD-52825
WD-62525 WD-62725 WD-62825

9351 Jeronimo Road, Irvine, CA 92618-1904

All Rights Reserved

V26 CHASSIS

Part Replacement Instructions

Note: Replacement Instructions are packaged with replacement parts.

TABLE of CONTENTS

ELECTRICAL CHASSIS REPLACEMENT

OPTICAL ENGINE REPLACEMENT

HDD (PVR) REPLACEMENT

FORMAT PWB REPLACEMENT

DM PWB REPLACEMENT

SIGNAL PWB REPLACEMENT

TERMINAL 1 & 2 PWB REPLACEMENT

I

MITSUBISHI INSTRUCTIONS: V26 CHASSIS REPLACEMENT

(b)

(b)

CHASSIS REMOVAL

FILTER-COVER Removal

Remove 2 screws (d) to remove the Filter Cover.

COVER-BACK Removal

1) Remove 9 screws (a)

2) Remove 6 screws (b)

3) Remove 2 screws (c)

4) Pull the COVER-BACK
from the cabinet.

REAR PLATE Removal

1) Remove 6 screws (a)
2 Remove10 screws (b)

3) Pull the Rear Plate from
the cabinet.

(b)

(b)

(a)

(a)

4) Disconnect FN2 connector (c)

(c)

(b)

(a)

(a)

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Page 1

MITSUBISHI INSTRUCTIONS: V26 CHASSIS REPLACEMENT

Chassis Removal

1) Remove the 2 screws (a) securing the chassis to the top base.

2) Remove 6 screws (b) securing the chassis to the bottom base and the left bracket.

3) Unplug the USB and 1394 connectors from the Chassis.

NOTE: In the V26++ chassis the Card Reader 1394 connector plugs into the Hard Drive Module.

(a)

(b)

4) Remove AC cord from notch

5) Carefully slide the chassis from the cabinet.

6) Remove cable tie.
Note: This cable tie can
be unlocked and reused.

Pull T ab

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MITSUBISHI INSTRUCTIONS: V26 CHASSIS REPLACEMENT

7) Disconnect 8 connectors from chassis to other devices.
(AA, RL, ES1, CC(2-pin), LL, CC(12-pin), FN1, and DVI cable to Chassis)

CC

CC

ES1

RL

AA

LL

FN1

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MITSUBISHI INSTRUCTIONS: V26 CHASSIS REPLACEMENT

NOTE: To remove the chassis, the two connectors to the Lamp Ballast must be

disconnected at the Lamp Ballast.

Accessing & Disconnecting The Lamp Ballast

Removing the Right Support

1) Remove the 3 screws shown below.

3 Screws

Curved

Air Duct

Removing the Lamp Ballast Shield

(4 screws)

4 Screws

Unplug CN1 & CN2

Connectors

Unplug
Connectors

Chassis can now be removed.
NEW CHASSIS INSTALLATION

T o install a new chassis, reverse previous step s for removal.

Perform DA T A COPY Procedure: MENU+24570, select “Copy Light Engine Data to DM”, press ENTER.

See V26 Service Manual for Details.

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Page 4

MITSUBISHI INSTRUCTIONS: V26/VK26 ENGINE REPLACEMENT

(b)

(b)

ENGINE REMOVAL

FILTER-COVER Removal

Remove 2 screws (d) to remove the Filter Cover.

COVER-BACK Removal

1) Remove 9 screws (a)

2) Remove 6 screws (b)

3) Remove 2 screws (c)

4) Pull the COVER-BACK
from the cabinet.

REAR PLATE Removal

1) Remove 6 screws (a)
2 Remove10 screws (b)

3) Pull the Rear Plate from
the cabinet.

(b)

(b)

(a)

(a)

4) Disconnect FN2 connector (c)

(c)

(b)

(a)

(a)

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Page 1

MITSUBISHI INSTRUCTIONS: V26/VK26 ENGINE REPLACEMENT

Removing the Optical Engine

1) Disconnect all connectors connected to the Optical Engine and the PWB-DMD. (JA, DT, J9, J14, DVI, JB,
JC)

(J14)

(J9)

(DT)

(JA)

(DVI)

(JB)

2) From the rear of the TV, remove the 4 screws (a), to remove the COVER-DUCT.

(a)

(JC)

3) From the rear of the TV, remove the 4 screw (b),
securing the bottom plate to the Adjuster assembly.

(b)

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(b)

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MITSUBISHI INSTRUCTIONS: V26/VK26 ENGINE REPLACEMENT

4) Slide the Optical Unit, PWB-DMD and bottom plate towards the rear to remove the unit from the TV.

6) Remove 2 screws (c) from the lamp power cable.

5) Loosen 3 screws and remove the lamp cartridge.

(c)

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MITSUBISHI INSTRUCTIONS: V26/VK26 ENGINE REPLACEMENT

Removing the follolwing parts from the Optical Engine

• DMD Heat Sensor

• The Optical Engine bottom plate and black bracket

• Lamp Housing Grill

DMD Heat Sensor Removal (Figure 1)

1) Remove screw (a) on the top of the DMD Fan.

2) Set the Heat Sensor aside to install on the replacement Optical Engine.

(a)

Figure 1: DMD Heat Sensor

Bottom Plate & Black Bracket Removal

1) Remove the 4 screws (B) from the Bottom Plate (Figure 2)

2) Remove the two screws (c), holding the Black Bracket to the Lamp Box. (Figure 3)

Heat Sensor

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Bottom Plate

(B)

Bottom View

Figure 2: Bottom Plate

Page 4

MITSUBISHI INSTRUCTIONS: V26/VK26 ENGINE REPLACEMENT

Black Bracket

(C)

Figure 3: Black Support Bracket

Installing the Optical Engine

1) Remove the Bottom Plate, Black Support
Bracket, Lamp Housing Grill and the Heat
Sensor from the original Optical Engine and
install on the replacement Engine.

2) Transfer the Lens Cap from the replacement
Engine to the original Engine.

3) Reverse the removal procedure to install the
replacement Optical Unit in the cabinet.
(See diagram to the right for reference)

The Optical Engine is mounted on the Adjuster assembly

as shown in the diagram to the right.

1) The Optical Engine is secured to the bottom plate by
4 screws (b).

2) The Black Bracket is secured to the bottom plate and
the Lamp Housing with 4 screws (c).

2) The bottom plate tab (1) slides into slot (1) on the
Adjuster.

3) Four screws (a) secure the bottom plate and Optical
Engine to the Aduster assembly.

4) Two screws secure the Lamp Housing Grill.

5) To replace the Optical Engine, only the bottom plate,
black bracket and the Optical Engine need to be
removed.

Front View

Lamp Housing
Grill (2 screws)

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Page 5

MITSUBISHI INSTRUCTIONS: V26/VK26 ENGINE REPLACEMENT

Adjustments

1) DATA COPY Procedure

V26 Chassis: Press <MENU> <2-4-5-7> <0> Select “Copy Light Engine Data to DM”, Press <ENTER>.
VK26 Chassis: DATA COPY procedure is not necessary.

2) The following adjustments may have to be performed after the installation. (see service manual)

• Horizontal and Vertical Electrical Centering Adjustment.

• Optical Unit Rotation Adjustment

• Optical Unit Keystone Adjustment

Repackaging - Important... Engines returned with damage due to improper packaging will
not receive credit.

1) Place the Lens Cap onto the original Optical Engine and place the Engine into the plastic bag.

2) Pack the Engine in the same manner the replacement was supplied, using all foam packing material.

Use Figure 4 as a reference.

Optical Engine in

Plastic Bag

Lamp Fan

Faces Up

Lens Cap on

Lens

DMD Heatsink

& Fan Fit Into

Cutout

Figure 4: Repackaging

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Page 6

INSTALLATION INSTRUCTIONS: HDD REPLACEMENT V26++

PART NUMBER: 939P989010 (ASSY-HDD-UNIT)
MODELS: WD-52825 / WD-62825

1) First, remove all external 1394 devices.

2) Before replacing HDD: Press MENU + 2470

3) Select TV Disc: Press Enter, wait for confirmation and press Enter again. See Figure 1-2

figure 2figure 1

4) Remove ASSY -HDD-UNIT. See Figures 3~5
a) Disconnect (2) 1394 cables “A” and “B” from ASSY -HDD UNIT
b) Disconnect power connections P1 and PD. See Figure 3
c) Remove screws “C” (5). See Figures 4-5

figure 3

PD

P1

A

B

PD

C

figure 4

C

P1

1394

figure 5

figure 6

5) Install new ASSY -HDD-UNIT. Refer to Figures 3~5

6) Power on TV and confirm TV Disc icon is found. Refer to Figure 6

7) Install other external 1394 devices and test record/playback function.

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1001 Cherry Drive, Suite 2 * Braselton, GA 30517

Page 1

INSTALLATION INSTRUCTIONS: ASSY-PWB-FMT (P/N: 930B924001 / 930B924002 / 930B924003)

Page 1

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1001 Cherry Drive, Suite 2 • Braselton, GA 30517

1) Remove screws “A” (18 screws and 2 Hex). Refer to Figures 1~3 (On page 2)

2) Remove screw “B”. Refer to Figure 4

3) Remove Shielding “C”, “D”, and “E”. TAKE NOTE OF WIRE-DRESSING Refer to Figure 5

4) Remove screws “F”, and move Terminal PWB assembly to the side. Refer to Figure 6

5) Remove connectors FA, FB, TF, HD and FC from FMT PWB. Refer to Figure 7

6) Remove screws “G” from FMT PWB (7 screws). Refer to Figure 7

7) Remove 2 Hex screws and 1 screw “H” from FMT PWB

Refer to Figure 8

A

A

A

A

A

A

A

F

E

G

H

G

D

B

C

H

FC

HD

TF

FB

FA

MODELS:
WD-52525
WD-52725
WD-52825
WD-62525
WD-62725
WD-62825

INSTALLATION INSTRUCTIONS: ASSY-PWB-FMT (P/N: 930B924001 / 930B924002 / 930B924003)

Page 2

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1001 Cherry Drive, Suite 2 • Braselton, GA 30517

FIGURE 1

FIGURE 2

FIGURE 3

FIGURE 4

FIGURE 5

FIGURE 6

FIGURE 7

FIGURE 8

INSTALLATION INSTRUCTIONS: ASSY-PWB-DM REPLACEMENT

PART NUMBER: 934C116001 / 934C1 16002 / 934C1 16003 (ASSY -PWB-DM)
MODELS: WD-52525 / WD-62525 / WD-52725 / WD-62725 / WD-52825 / WD-62825

1) REMOVE (8) SCREWS

2) REMOVE (3) SCREWS

3) REMOVE (6) SCREWS AND 2 HEX
NOTE WIRE DRESSING FOR RE-INSTALL

5) REMOVE SHIELDS

4) REMOVE (3) SCREWS

6) REMOVE FA & FB CONNECTORS (When re­install; install to DM PWB first then to FMT)

Mitsubishi Digital Electronics America, Inc
1001 Cherry Drive, Suite 2 * Braselton, GA 30517

Page 1

INSTALLATION INSTRUCTIONS: ASSY-PWB-DM REPLACEMENT

7) REMOVE (2) FERRITE CORES

8) REMOVE (2) SCREWS

9) REMOVE (5) CONNECTORS (TG , TE,
HD, KP , J8F03)

TG TE

HD

J8F03

KP

11) REMOVE (4) SCREWS

10) CONNECTOR REFERENCE

12) REMOVE (2) SCREWS

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1001 Cherry Drive, Suite 2 * Braselton, GA 30517

Page 2

INSTALLATION INSTRUCTIONS: ASSY-PWB-DM REPLACEMENT

13) SEP ARA TE SIGNAL PWB 14) DISCONNECT (3) CONNECTORS (DA, DB, DC)

DA

DB

DC

15) DISCONNECT (2) CONNECTORS
(PF , KT)

16) PULL DM ASSY FROM CHASSIS - REMOVE (7) SCREWS

PF
KT

(Remove CableCard
if installed.)

18) REMOVE PWB FROM BRACKET
REMOVE (3) SCREWS

19) Reverse items 1 to 18 for
reassembly.

17) REMOVE E2P PWB FROM DEFEC­TIVE PWB AND INSTALL TO NEW DM
PWB

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1001 Cherry Drive, Suite 2 * Braselton, GA 30517

WIRE-HARNESS DRESSING
REFERENCE

Page 3

INSTALLATION INSTRUCTIONS: ASSY-PWB-SIGNAL REPLACEMENT

PART NUMBER: 930B923001 / 930B923002 / 930B923003 (ASSY-PW B-SIGNAL)
MODELS: WD-52525 / WD-62 525 / WD-52725 / WD-62725 / WD-52825 / WD-62825

1) REMOVE (8) SCREWS

2) REMOVE (3) SCREWS

3) REMOVE (6) SCREWS AND 2 HEX
NOTE WIRE DRESSING FOR RE-INSTALL

5) REMOVE SHIELDS

4) REMOVE (3) SCREWS

6) FROM FMT-PWB SIDE, REMOVE (1) SCREW HOLD­ING SIGNAL BRACKET.

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1001 Cherry Drive, Suite 2 * Braselton, GA 30517

FMT PWB

Page 1

INSTALLATION INSTRUCTIONS: ASSY-PWB-SIGNAL REPLACEMENT

7) REMOVE (8) CONNECTORS (TG , TE,
HD, KP, J8F03, LE, LEF , J2)

LE

TG TE

HD

LF

J2

KP

J8F03

9) REMOVE (2) SCREWS

8) CONNECTOR REFERENCE

10) REMOVE (1) SCREW

J8F03

KP

1 1) SEP ARA TE SIGNAL FROM DM

12) DISCONNECT (3) CONNECTORS (DA, DB, DC)

Mitsubishi Digital Electronics America, Inc
1001 Cherry Drive, Suite 2 * Braselton, GA 30517

Page 2

INSTALLATION INSTRUCTIONS: ASSY-PWB-SIGNAL REPLACEMENT

13) DISCONNECT (5) CONNECTORS
(ES, K2, KS, K3, KT)

ES

15) REMOVE CONNECTOR RB

16) REMOVE (3) TUNER CONNEC­TORS (A)

K2

KS K3

14) REMOVE (2) SCREWS, (2) HEX SCREWS,
AND (2) HEX NUTS.

DA

DB

KT

DC

17) REMOVE (7) SCREWS (B)

PF
KT

18) Reverse items 1 to 17 for
reassembly.

B

A

RB

B

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1001 Cherry Drive, Suite 2 * Braselton, GA 30517

WIRE-HARNESS DRESSING
REFERENCE

Page 3

INSTALLATION INSTRUCTIONS: ASSY-PWB-TERMINAL 1 & 2

PART # DESCRIPTION MODELS
934C1 17001 ASSY-PWB-TERMINAL-1 WD-52525 WD-62525 WD-52725 WD-62725
934C1 17002 ASSY-PWB-TERMINAL-1 WD-52825 WD-62825
934C1 18001 ASSY-PWB-TERMINAL-2 ALL V26 / V26+ / V26++

1) REMOVE (8) SCREWS

2) REMOVE (3) SCREWS

3) REMOVE (6) SCREWS AND 2 HEX
NOTE WIRE DRESSING FOR RE-INSTALL

5) REMOVE SHIELDS

4) REMOVE (3) SCREWS

6) REMOVE (3) SCREWS HOLDING TERMINAL PWB.

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1001 Cherry Drive, Suite 2 * Braselton, GA 30517

FMT PWB

Page 1

INSTALLATION INSTRUCTIONS: ASSY-PWB-TERMINAL 1 & 2

7) REMOVE WIRE FROM CLAMPS 8) REMOVE (7) CONNECTORS (CE, TP , RA,TG ,
TE1, TF , TE2)

TG TE

HD

J8F03

9) REMOVE (11) SCREWS

J8F03

LE

LF

KP

KP

J2

CE

RA

TP

TG

TE1

TF

TE2

10) REMOVE (3) SCREWS AND REMOVE
BRACKET FROM PWB

11) DISCONNECT (4) CONNECTORS AND (5) RISERS TO
SEP ARA TE TERMINAL 1 FROM TERMINAL 2

TA

TB TC

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1001 Cherry Drive, Suite 2 * Braselton, GA 30517

11) FOR RE-ASSEMBLY, REVERSE ABOVE
STEPS

TD

Page 2