HITACHI 42PD380TA Service Manual

42PD380TA

SERVICE MANUAL

42" PLASMA

COLOR TELEVISION

ORIGINAL

MFR’S VERSION A

Design and specifications are subject to change without notice.

SERVICING NOTICES ON CHECKING

1. KEEP THE NOTICES

As for the places which need special attentions, they are indicated with the labels or seals on the cabinet, chassis and parts. Make sure to keep the indications and notices in the operation manual.

2. AVOID AN ELECTRIC SHOCK

There is a high voltage part inside. Avoid an electric shock while the electric current is flowing.

3. USE THE DESIGNATED PARTS

The parts in this equipment have the specific characters of incombustibility and withstand voltage for safety. Therefore, the part which is replaced should be used the part which has the same character. Especially as to the important parts for safety which is indicated in the circuit diagram or the table of parts as a mark, the designated parts must be used.

11.

When you remove the cover, do not scratch the FPC on both ends of PDP Module.

12.

Hold the four ends holder and be careful not to touch the glass area.

13.

Take care for the damage of vacuum exhaust pipe due to a collision.

14.

Moisture condensation may damage the PDP Module. So, leave it for 48 hours at the service room.

5. PUT PARTS AND WIRES IN THE ORIGINAL POSITION AFTER ASSEMBLING OR WIRING

There are parts which use the insulation material such as a tube or tape for safety, or which are assembled in the condition that these do not contact with the printed board. The inside wiring is designed not to get closer to the pyrogenic parts and high voltage parts. Therefore, put these parts in the original positions.

4. BE CAREFUL WITH THE PDP PANEL

When you handle the PDP Filter you must wear the gloves twice, because, you are to avoid soil it by your sweat and dust.

When you lift the PDP Filter you should hold it with the palm of your hand. Don’t pick up it with your fingers.

The back side of PDP Filter tends to damaged. Since there is no coating. Therefore, it put into the packing box at the time of delivery, without piling up even at the time of unused. Also, when you take out it from a packing box, be careful of the rubbing.

When the surface becomes dirty, wipe it with a soft cloth as you draw a circle. When it is dirty hardly, wipe it with a cloth ethanol infiltrated. Don’t use ethanol for the back side.

Do not apply it to direct sunshine so that the characteristic may change.

When you inspect the surface (the scratch, the dirt and the air bubble), use the fluorescent light.

When you use SCREW DRIVER and SCREW, be careful of a metallic powder being mixed.

Do not damage the PDP Module with a DRIVER.

Do Handling with the PDP Module by 2 persons.

10.

There is a step difference between the cover and PDP Module. So, when you remove the screws, place a cushion on it so that the PDP Module is not being scratched. Then remove the screws carefully.

PERFORM A SAFETY CHECK AFTER

SERVICING

Confirm that the screws, parts and wiring which were removed in order to service are put in the original positions, or whether there are the portions which are deteriorated around the serviced places serviced or not. Check the insulation between the antenna terminal or external metal and the AC cord plug blades. And be sure the safety of that.

(INSULATION CHECK PROCEDURE)

Unplug the plug from the AC outlet.

1. Remove the antenna terminal on TV and turn

2. on the TV. Insulation resistance between the cord plug

3. terminals and the eternal exposure metal [Note 2] should be more than 2.5M ohm by using the 500V insulation resistance meter [Note 1]. If the insulation resistance is less than 2.5M

4. ohm, the inspection repair should be required.

[Note 1]

If you have not the 500V insulation resistance meter, use a Tester.

[Note 2]

External exposure metal: Antenna terminal

Screw 21pin jack Side RCA jack Rrar RCA jack Headphone jack

A1-1

HOW TO ORDER PARTS

Please include the following informations when you order parts. (Particularly the VERSION LETTER.)

1. MODEL NUMBER and VERSION LETTER The MODEL NUMBER can be found on the back of each product and the VERSION LETTER can be

found at the end of the SERIAL NUMBER.

2. PART NO. and DESCRIPTION You can find it in your SERVICE MANUAL.

IMPORTANT

When you exchange IC and Transistor with a heat sink, apply silicon grease (YG6260M) on the contact section of the heat sink. Before applying new silicon grease, remove all the old silicon grease. (Old grease may cause damage to the IC and Transistor).

PANEL LOCK

To unlock the Password of Panel Lock, please follow the steps below.

Turn Unit ON.

1. Press and hold the ‘VOLUME DOWN’ key on the front panel for more than 10 seconds.

2. The Panel Lock has now been cleared.

3. Press and hold the ‘VOLUME DOWN’ key on the front panel.

4. Simultaneously press and hold the ‘0’ key on the remote control unit.

5. Hold both keys for more than 2 seconds.

6. The Password of Panel Lock has now been cleared.

A1-2

CONTENTS

SERVICING NOTICES ON CHECKING......................................................................................................

HOW TO ORDER PARTS ...........................................................................................................................

IMPORTANT................................................................................................................................................

PANEL LOCK..............................................................................................................................................

CONTENTS .................................................................................................................................................

GENERAL SPECIFICATIONS ....................................................................................................................

DISASSEMBLY INSTRUCTIONS

1.EXCHANGE METHOD OF PDP MODULE .........................................................................................

2.REMOVAL AND INSTALLATION OF FLAT PACKAGE IC ...............................................................

SERVICE MODE LIST.................................................................................................................................

CONFIRMATION OF HOURS USED ..........................................................................................................

WHEN REPLACING EEPROM (MEMORY) IC ...........................................................................................

FUNCTION OF PCB ....................................................................................................................................

ELECTRICAL ADJUSTMENTS ..................................................................................................................

TROUBLESHOOTING GUIDE ....................................................................................................................

BLOCK DIAGRAM

SCALER/LVDS/MICON/ADC/JACK/SIDE JACK/AV SWITCH 1/REGULATOR ....................................

AV SWITCH 2/TUNER/21PIN/STEREO/SOUND AMP ..........................................................................

POWER ..................................................................................................................................................

INTERFACE............................................................................................................................................

MICON2 ..................................................................................................................................................

PRINTED CIRCUIT BOARDS

AV/OPERATION/POWER SW/SIDE JACK ............................................................................................

AV/OPERATION/SIDE JACK .................................................................................................................

SCALER..................................................................................................................................................

HD-MI......................................................................................................................................................

SCHEMATIC DIAGRAMS

AV SWITCH 2.........................................................................................................................................

AV ...........................................................................................................................................................

STEREO .................................................................................................................................................

POWER ..................................................................................................................................................

OPERATION/SIDE JACK/POWER SWITCH ........................................................................................

SOUND AMP/HEADPHONE AMP.........................................................................................................

TUNER....................................................................................................................................................

MICON ....................................................................................................................................................

SCALER..................................................................................................................................................

ADC ........................................................................................................................................................

LVDS.......................................................................................................................................................

JACK.......................................................................................................................................................

AV SWITCH ............................................................................................................................................

REGULATOR..........................................................................................................................................

INTERFACE............................................................................................................................................

MICON2 ..................................................................................................................................................

WAVEFORMS .............................................................................................................................................

MECHANICAL EXPLODED VIEW ..............................................................................................................

MECHANICAL REPLACEMENT PARTS LIST ..........................................................................................

ELECTRICAL REPLACEMENT PARTS LIST ............................................................................................

A1-1 A1-2 A1-2 A1-2 A2-1 A3-1~A3-6

B1-1~B1-10 B2-1, B2-2 C-1 C-1 C-2~C-31 C-32 D-1~D-5 E-1~E-5

F-1, F-2 F-3, F-4 F-5, F-6 F-7, F-8 F-9, F-10

G-1, G-2 G-3, G-4 G-5, G-6 G-7, G-8

H-1, H-2 H-3, H-4 H-5, H-6 H-7, H-8 H-9, H-10 H-11, H-12 H-13, H-14 H-15, H-16 H-17, H-18 H-19, H-20 H-21, H-22 H-23, H-24 H-25, H-26 H-27, H-28 H-29, H-30 H-31, H-32 I-1~I-3 J-1~J-4 K1-1 K2-1~K2-3

A2-1

GENERAL SPECIFICATIONS

G-1 TV PDP PDP Size / Visual Size 41.58 inch / 1056.1 mmV

G-2 Tuning Broadcasting System

G-3 Power Power Source AC 100-240V AC 50/60Hz

G-4 Regulation Safety IEC60065,GOST, CB, AS/NZS, PSB

G-5 Temperature Operation +5oC ~ +40oC

G-6 Operating Humidity Less than 80% RH

System Number of Pixels(H x V) 852(H) x 480(V)

System Tuner and System 1Tuner

Color System PAL/SECAM/NTSC Speaker 4 Speaker

Main Size 2.2 x 5.0 inch

Tweeter Size 2.0 inch

Sound Output MAX 10W + 10W

NTSC3.58+4.43 /PAL60Hz Yes

Receive CH Destination UK, CCIR Hyper, USA

Intermediate Frequency Picture(FP)

Auto Tuning Method Preset CH 110 Stereo/Dual TV Sound NICAM/A2 Dual Tuner Sound Muting Yes

Power Consumption at AC 250 W at AC 100-240 V 50/60 Hz

Protector Power Fuse Yes

Position Front Side

Impedance 4 ohm

Impedance 8 ohm

10%(Typical) ---

U.K., CCIR, US System B/G, D/K, I/I, M

CH Coverage

Sound(FS) FP-FS

DC ---

at DC -Stand by (at AC) 1 W at AC 100-240 V 50/60 Hz Per Year -- kWh/Year Energy Star Yes

Safety Circuit Yes IC Protector(Micro Fuse) No

Radiation CISPR, GOST, AS/NZS, PSB X-Radiation ---

Storage -20oC ~ +60oC

1~S6, S7~S36, S37~E69 PAL/SECAM(U&VH)/NTSC

38.9/38.9/38.9/38.9MHz

33.4/32.9/32.4/34.4MHz

5.5/6.0/6.5/4.5MHz ALL Band (Not C.C.I.R. CH Plan)

A3-1

GENERAL SPECIFICATIONS

G-7 On Screen Menu (TV) Yes

Display Menu Type Icon

Menu (PC) Yes

Picture Yes

Audio Yes

Setup Yes

Option

Picture Yes

Audio Yes

Brightness Yes Contrast Yes Color Yes Tint (NTSC, COMPONENT, HDMI) Yes Sharpness Yes DNR On/Off Yes Color Temperature Yes Blue Back No Film Mode Yes

NICAM Auto/Off Yes Bass Yes Treble Yes Balance Yes Perfect Volume Yes Surround On/Off No Speakers On/Off Yes HDMI Yes BBE No WOW SRS 3D Yes WOW Focus Yes WOW Trubass Yes

Auto Tuning Yes Manual Tuning Yes Sort(CH Allocation) Yes Backlight No Text Language Yes Language Yes Position (Vertical Position) Yes Auto 4:3 Default No AV2 Output No AV2 Input No Color System(AV Color) Yes Inversion No Screen Wipe(Full White) Yes Screen Saver Yes Static Image Yes

Yes On Timer Yes Off Timer Yes Panel Lock Yes

Brightness Yes Contrast Yes HOR Position Yes VER Position Yes Clock Phase Yes Horizontal Clock Yes AUTO ADJUST No Amplitude Red Yes Amplitude Green Yes Amplitude Blue Yes WXGA Mode Yes WVGA Mode Yes

NICAM Auto/Off No Bass Yes Treble Yes Balance Yes Perfect Volume Yes Surround On/Off No Speakers On/Off Yes HDMI Yes BBE No WOW SRS 3D Yes WOW Focus Yes WOW Trubass Yes

A3-2

GENERAL SPECIFICATIONS

Control Level Yes

Nicam ST Yes Tone 1/2 Yes Pin Code No Freeze No CH/AV/PC Yes Hotel Lock No Wide Mode Yes Sleep Timer Yes Sound Mute Yes Input Select Yes NOT AVAILABLE Yes

G-8 OSD Language English / Chinese(Simplified) /

G-9 Clock and Sleep Timer Max Time 120 Min

Timer Step 10 Min

On/Off Timer Program(On Timer / Off Timer) 1 Program Wake Up Timer No Timer Back-up (at Power Off Mode) more than -- Min Sec

Volume Yes Brightness Yes Contrast Yes Color Yes Tint (NTSC Only) Yes Sharpness Yes Tuning Yes Bass Yes Treble Yes Balance Yes HOR Position Yes VER Position Yes Clock Phase Yes Horizontal Clock Yes Amplitude Red Yes Amplitude Green Yes Amplitude Blue Yes Backlight No

Chinese(Traditional) / Russia

A3-3

GENERAL SPECIFICATIONS

G-10 Remote Unit RC-MA

G-11 Features Auto Shut Off Yes

Control Glow in Dark Remocon No

Remocon Format HITACHI Format HITACHI Custom Code 50-AF h Power Source Voltage(D.C) 3V

Total Keys Keys Power ( Stand By ) Yes

T'TEXT Keys TEXT / MIX / TV Yes

BBE No SRS WOW(SRS 3D/Focus/Tru Bass) Yes Variable Audio Out Yes Auto Search Yes CH Sort(CH Allocation) Yes Channel Lock No Just Clock Function No Game Position No CH Label No T'Text Yes

Wide Mode Yes Picture Scroll Yes DNR Yes

Comb Filter Yes

Surround No Backlight No Perfect Volume(Stable Sound) Yes PFC(Power Factor circuit) Yes Auto Set Up No Power On Memory Yes Hotel Lock No PC Monitor Input Yes Freeze frame No

UM size x pcs UM-4 x 2 pcs

1 Yes 2 Yes 3 Yes 4 Yes 5 Yes 6 Yes 7 Yes 8 Yes 9 Yes 0 Yes Volume Up / Right Yes Volume Down / Left Yes Sleep Yes Recall (CH Call) Yes Menu Yes Enter Yes Mute Yes Picture Size Yes Fine Tuning + No Fine Tuning - No Input Select Yes Multi Picture No Picture Position No Picture Main/Sub No

CH Up / Page Up / Up Yes CH Down / Page Down / Down Yes Red Yes Green Yes Yellow Yes Blue Yes F/T/B(Expand) / Normal Yes Reveal / Skip Yes Reset / Audio 1/2 Yes Hold / Status Yes Sub Page / Quick View Yes

Text type Fastext / Toptext Text Language English , French, Swedish, Hungarian

Finnish, Turkish, German, Dutch

Portuguese, Spanish, Italian, Greek

Polish, Russian, Bulgarian,

Serbian, Croatian, Slovene,

Czech, Slovakian, Rumanian.

5 Lines

A3-4

GENERAL SPECIFICATIONS

G-12 Accessories Owner's Manual Language English / Chinese(Simplified) /

w/Guarantee Card

Remote Control Unit Yes Rod Antenna

Poles Terminal -

Loop Antenna (W/ Antenna Change Plug)

Terminal -

U/V Mixer DC Car Cord (Center+) Guarantee Card Warning Sheet Circuit Diagram Antenna Change Plug Service Facility List Important Safeguard Dew/AHC Caution Sheet Quick Set-up Sheet Battery Yes

UM size x pcs UM-4 x 2 pcs OEM Brand Yes(Maxell)

AC Adapter AC Cord (for AC Adapter) AC Cord Yes AV Cord (2Pin-1Pin) HDMI-DVI Cable Registration Card 300 ohm to 75 ohm Antenna Adapter

G-13 Interface Switch Front Sub Power (Tact) Yes

System Select No Main Power SW No Channel Up/Menu Up Yes Channel Down/Menu Down Yes Volume Up/Menu > Yes Volume Down/Menu < Yes Input Select Yes Menu No

Rear Main Power SW Yes

Indicator Power / Stand-by Yes(GREEN / RED)

On Timer No

Terminals Rear Video Input 1 RCA x 1

Audio Input S- Input Video Input 2 RCA x 1 Audio Input S- Input Video Output RCA x 1 Audio Output RCA x 2(Variable L, R) Component In 1 Audio Input (Component In use) Component In 2 Audio Input (Component In use) Other Terminal No Euro Scart (21Pin) No HDMI Input(w/ Analog Audio L/R) Sub Woofer Out No PC Monitor Input (D-Sub) Audio Input Mini Pin Jack(d=3.5), STEREO Diversity No Ext Speaker No DC Jack 12V(Center +) No VHF/UHF Antenna Input AC Inlet

Side Video Input 3 RCA x 1

Audio Input RCA x2(L/MONO,R) S- Input Other Terminal Headphone

G-14 Set Size Approx. W x D x H (mm) 1,210 x 115 x 658 G-15 Weight Net Approx. 34.0kg (75.0 lbs)

Gross Approx. 41.0kg (90.4 lbs)

Chinese(Traditional) / Russia

No No No No No No No No No No

No No

No No No No

RCA x 2(L/MONO, R)

Yes

RCA x 2(L/MONO, R)

Yes

RCA x 3

RCA x 2(L/MONO, R)

RCA x 3

RCA x 2(L/MONO, R)

Yes

DIN Type

Yes

A3-5

GENERAL SPECIFICATIONS

G-16 Carton Master Carton

Gift Box Material Double/Brown

Drop Test

Container Stuffing 158

G-17 Material Cabinet Cabinet Front PC+ABS 94V0 Non-Halogen

PCB Non-Halogen

G-18 Environment Environmental standard requirement Green procurement of HITACHI

Pb-free Phase3(Phase3A) WEEE

Content --- Sets Material --- / --Dimensions W x D x H(mm) --Description of Origin ---

Dimensions W x D x H(mm) 1,320 x 380 x 780 Design As per Buyer's Description of Origin

Natural Dropping At 1 Corner / 3 Edges

Height (cm) 31(ORION SPEC:25)

Cabinet Rear Steel

Eyelet Yes

/ 6 Surfaces

Sets/40' container

A3-6

DISASSEMBLY INSTRUCTIONS

1. EXCHANGE METHOD OF PDP MODULE

NOTE

Do handling with the PDP Module by 2 persons.

REMOVAL METHOD OF PDP MODULE

1-1: CABINET BACK/COVER BACK

Remove the screw.

Remove the Cabinet Back and Cover Back.

Cabinet Back

1-2: CHASSIS BLOCK

Disconnect the connector.

1. Remove the screw.

Remove the Chassis Ass'y.

Cover Back

B1-1

Chassis Ass'y

DISASSEMBLY INSTRUCTIONS

1-3: PDP MODULE

Remove the Tape.

Remove the screw. Hold the Frame Main carefully and remove the PDP Module.

NOTE

When remove the PDP Module, raise the cushion carefully so that having a scratch on the face.

PDP Module

Frame Main

Raise the cushion.

B1-2

1-4: PDP FILTER

Remove the Operation PCB.

Remove the screw. Remove the Shield Main.

3. Remove the PDP Filter.

DISASSEMBLY INSTRUCTIONS

Shield Main Top

Shield Main L

Operation PCB

Shield Main R

Shield Main Bottom

PDP Filter

B1-3

DISASSEMBLY INSTRUCTIONS

12345678901234567890123456789012123456789012345678

INSTALLATION METHOD OF PDP MODULE

NOTES FOR NEW PDP FILTER HANDLING

When you handle the PDP Filter you mast wear the gloves twice, because, you are to avoid soiling it by your sweat and dust.

When you lift the PDP Filter you put it between the palm of your hand. Don’t pick up it with your fingers.

The back side of PDP Filter tends to set damaged. Since there is no coating. There fore, it put into the packing box at the time of delivery, without piling up even at the time of unused. Also, when you take out it from a packing box, be careful of the appearance which can not rub it.

When the surface becomes dirty, be the cloth out of which it is soft and dust does not come, and as you draw a circle, wipe it. When hard dirty, infiltrate ethanol etc. into cloth lightly and wipe. Don’t use ethanol for the back side.

Do not apply it to direct sunshine so that the characteristic may change.

When you inspect the scratch and the dirt, the air bubble of the PDP Filter surface that use the light.

1-5: PDP FILTER (PREPARATION)

Fix the Cusion. (Order the cushion newly.)1.

Cushion

Rear side (No coating)

2345678901234567890123456789012123456789012345678

Cushion

[4 ends common]

Apply the cushion on the light brown paint with a 3mm blank.

23456789012345678901234

3mm

B1-4

DISASSEMBLY INSTRUCTIONS

NOTES FOR NEW PDP MODULE HANDLING

Do handling with the PDP Module by 2 persons.

1. There is a step difference between the cover and PDP Module. So, when you remove the screws, place a cushion on it so

2. that the PDP Module is not being scratched. Then remove the screws carefully. When you remove the cover, do not scratch the FPC on both ends of PDP Module.

3. Hold the four ends holder and be careful not to touch the glass area.

4. Take care for the damage of vacuum exhaust pipe due to a collision.

5. Moisture condensation may damage the PDP Module. So, leave it for 48 hours at the service room.

6. Re-use the cover, vinyl sheet, and screws for returning of the PDP Module.

Vacuum Exhaust Pipe

FPC

B1-5

DISASSEMBLY INSTRUCTIONS

1-6: PDP MODULE (PREPARATION)

Remove the fixing screw of Power PCB. Then fix the Wiring Clip. (Use the clipson defective PDP Module)

1. Fix the Cord Clip. (Use the clip son defective PDP Module)

2. Fix the Wiring Clip. (Use the clip son defective PDP Module)

Wiring Clip

Cord Clip

B1-6

Cord Clip

45˚

Cord Clip

Wiring Clip

DISASSEMBLY INSTRUCTIONS

1-7: PDP MODULE (WIRING)

Fix the wiring with the Band Cord Clamp.

1. Fix the Core Ferrite. (Use the clip son defective PDP Module)

2. Remove the AC Inlet.

Core Ferrite

Band Cord Clamp

AC Inlet

Set SW501 (24V)

Core Ferrite

Band Cord Clamp

Wiring Clip

B1-7

DISASSEMBLY INSTRUCTIONS

1-8: PDP MODULE

Fix the Frame Main. (Use the clip son defective PDP Module)

1. Install the PDP Filter on the set.

2. Install the Shield Main on the set.

3. Hold the Frame Main carefully and install the New PDP Module on the set.

[NG]

No mesh of the cushion (For all 4 positions)

[4 ends common]

Cushion

2345678901234

Pile up the cushion.

B1-8

DISASSEMBLY INSTRUCTIONS

1-9: WIRE FIXING/TAPE

Do the wire fixing as shown the photo.

Stick the tapes on the position as shown the photo. (Order the tape newly.)

Tape

B1-9

DISASSEMBLY INSTRUCTIONS

1-10: CHASSIS BLOCK

Do the wire fixing as shown the photo, then install the Chassis Ass'y.

1. Install the Stand Ass'y.

Place the cable in the Holder Cord.

Cord Clip

Sheet Earth Mark

Earth wire of AC Inlet.

Place the cable in the Holder Cord.

1-12: CABINET BACK/COVER BACK

Check if the wire handlings are correct.

Check if the cushion pastings are correct.

Check if the tape pastings are correct.

Install the Cabinet Back and Cover Back.

Place the cable in the Holder Cord.

Toothed Lock Washer

Tie the wire around the PDP Module post and then place it in the Holder Cord.

B1-10

DISASSEMBLY INSTRUCTIONS

REMOVAL AND INSTALLATION OF FLAT PACKAGE IC

REMOVAL

Put Masking Tape (cotton tape) around the Flat Package

1. IC to protect other parts from any damage.

(Refer to Fig. 2-1.) NOTE

Masking is carried out on all the parts located within 10 mm distance from IC leads.

When IC starts moving back and forth easily after

3. desoldering completely, pickup the corner of the IC using tweezers and remove the IC by moving with the IC desoldering machine. (Refer to Fig. 2-3.)

NOTE

Some ICs on the PCB are affixed with glue, so be careful not to break or damage the foil of each IC leads or solder lands under the IC when removing it.

Blower type IC desoldering machine

Masking Tape (Cotton Tape)

Heat the IC leads using a blower type IC desoldering

machine. (Refer to Fig. 2-2.)

NOTE

Do not rotate or move the IC back and forth , until IC can move back and forth easily after desoldering the leads completely.

Blower type IC desoldering machine

Fig. 2-1

Tweezers

Peel off the Masking Tape.4. Absorb the solder left on the pattern using the Braided

5. Shield Wire. (Refer to Fig. 2-4.)

NOTE

Do not move the Braided Shield Wire in the vertical direction towards the IC pattern.

Fig. 2-3

Braided Shield Wire

Soldering Iron

Fig. 2-2

IC pattern

Fig. 2-4

B2-1

+ 47 hidden pages