JVC LT-22HG45E User manual

Brand: JVC

Model: LT-22HG45E

Category: LCD TVs

Type: User manual

LT-22HG45E

22" LED TV

SERVICE MANUAL

Design and specifications are subject to change without notice.

ORIGINAL

MFR'S VERSION A

Operating the receiver outside of its cabinet or with its Before returning the receiver to the user, perform the

back removed involves a shock hazard. Work on following safety checks:

these models should only be performed by those who 1. Inspect all lead dress to make certain that leads are

are thoroughly familiar with precautions necessary not pinched or that hardware is not lodged between

when working on high voltage equipment. the chassis and other metal parts in the receiver.

2. Replace all protective devices such as nonmetallic

Exercise care when servicing this chassis with power control knobs, insulating fishpapers, cabinet backs,

applied. Many B plus and high voltage RF terminals are adjustment and compartment covers or shields,

exposed which, if carelessly contacted, can cause isolation resistor-capacitor networks, mechanical

serious shock or result in damage to the chassis. insulators, etc.

Maintain interconnecting ground lead connections 3. To be sure that no shock hazard exists, a check for

between chassis, escutcheon, picture tube dag and the presence of leakage current should be made at

tuner cluster when operating the chassis. each exposed metal part having a return path to the

chassis (antenna, cabinet metal, screw heads,

These receivers have a "polarized" AC line cord. The AC knobs and/or shafts, escutcheon, etc.) in the

plug is designed to fit into standard AC outlets in one following manner.

direction only. The wide blade connects to the "ground

side" and the narrow blade connects to the "hot side" of Plug the AC line cord directly into a 120V AC receptacle.

the AC line. This assures that the TV receiver is properly (Do not use an Isolation Transformer during these

grounded to the house wiring. If an extension cord must checks.) All checks must be repeated with the AC line

be used, make sure it is of the "polarized" type. cord plug connection reversed. (If necessary, a

nonpolarized adapter plug must be used only for the

Since the chassis of this receiver is connected to one purpose of completing these checks.)

side of the AC supply during operation, service should

not be attempted by anyone not familiar with the

If available, measure current using an accurate leakage

IMPORTANT SERVICE SAFETY INFORMATION

not be attempted by anyone not familiar with the

If available, measure current using an accurate leakage

precautions necessary when working on these types current tester. Any reading of 0.35mA or more is

of equipment. excessive and indicates a potential shock hazard which

must be corrected before returning the receiver to the

When it is necessary to make measurements or tests with owner.

AC power applied to the receiver chassis, an Isolation

Transformer must be used as a safety precaution and to If a reliable leakage current tester is not available, this

prevent possible damage to transistors. The Isolation alternate method of measurement should be used.

Transformer should be connected between the TV line Using two clip leads, connect a 1500 ohm, 10 watt

cord plug and the AC power outlet. resistor paralleled by a 0.15µF capacitor in series with

a known earth ground, such as a water pipe or conduit

When removing springs or spring mounted parts from the and the metal part to be checked. Use a VTVM or

tuner, tuner cluster or chassis, shatterproof goggles must VOM with 1000 ohms per volt, or higher, sensitivity to

be worn. Keep others without shatterproof goggles away. measure this AC voltage drop across the resistor. Any

reading of 0.35 volt RMS or more is excessive and

indicates a potential shock hazard which must be

corrected before returning the receiver to the owner.

TO EXPOSED

METAL PARTS

TO KNOWN

EARTH GROUND

10µF

TEST PROBE

VT VM

AC SCALE

0.15K OHMS

10W

ABOUT LEAD FREE SOLDER (PbF)

Distinction of PbF PCB:

PCBs (manufactured) using lead free solder will have a PbF printing on the PCB.

(Please refer to figures.)

Caution:

• Pb free solder has a higher melting point than standard solder;

Typically the melting point is 86

F~104

F(30

C~40

C) higher.

Please use a soldering iron with temperature control and adjust it to 650

F ± 20

F (350

C ± 10

C).

In case of using high temperature soldering iron, please be careful not to heat too long.

•Pb free solder will tend to splash when heated too high (about 1100

F/ 600

C).

• All products with the printed circuit board with PbF printing must be serviced with lead free solder.

When soldering or unsoldering, completely remove all of the solder from the pins or solder area,

and be sure to heat the soldering points with the lead free solder until it melts sufficiently.

Recommendations

Recommended lead free solder composition is Sn-3.0Ag-0.5Cu.

HOTEL MODE FUNCTION

To set the Hotel mode, please follow the steps below.

1. Press the MENU ---> 1147 button on the remote control.

2. Press the DOWN button on the remote control, Hotel mode On <>

3. Select the "Setup" menu , then press ENTER button. Source Lock >>

4. Select the "Hotel Mode" menu, Select "ON". Default Source Off <>

5. The Hotel mode setting menu will appear. Channel Type All <>

6. Using the UP/DOWN button on the remote control, Default Program 1 <>

select the desired mode. Then press the ENTER button.Max Volume 100

7. Default Volume 50

set the mode to desired setting. Clone to USB >>

8. The Hotel mode has now been set up.

Restore from USB >>

To reset the Hotel mode, please follow the steps below.

1. Press the MENU ---> 1147 button on the remote control.

2. Press the DOWN button on the remote control,

3. Select the "Setup" menu , then press ENTER button.

Select the "Hotel Mode" menu.

Using the LEFT/RIGHT button on the remote control,

Select the "Hotel Mode" menu.

5. The setting items has now been returned to initial value.

ANTENNA/CABLE/AV

COMPONENT/SCART/ 1 Setting of the CH if select "Default Source" to TV input.

PC/HDMI/USB

21 Setting of the CH if select "Default Source" to TV input.

100 Setting of the maximum volume value.

50 Setting volume at Power on.

Setting of the Hotel Mode return factory setting.

Setting of the Password.

Default Program

Default Volume

Restore from USB

Clone to USB

Setting item Setting value

ANTENNA/CABLE/AV

PC/HDMI/USB

COMPONENT/SCART/

ANTENNA/CABLE/AV

PC/HDMI/USB

COMPONENT/SCART/

Setting Input skip, combine with "Default Source".

Setting Input Source, combine with "Source Lock"

If select "Source Lock" for this function disappear.

FUNCTION

Channel Type

Max volume 0~100

1~21

0~50

Initial value

Source Lock

OFFDefault Source

GENERAL SPECIFICATIONS

G-1 TV LCD LCD Size / Visual Size 21.53 inch / 546.8mmV

System LCD Type Color TFT LCD

Number of Pixels 1920(H) x 1080(V)

Double Scan No

View Range Left/Right 85/85 degree

Up/Down 80/80 degree

Bright Dot n 3

Zero Bright Dot Ratio 70% above

Color System PAL / SECAM

Speaker 2 Speaker

Position Bottom

Size 1.0 x 2.7 inch

Impedance 8 ohm

Sound Output MAX 2.0W + 2.0W

10%(Typical) ---

NTSC3.58+4.43 /PAL60Hz Yes

G-2 Tuning Broadcasting System Analog

System Digital DVB-T

DVB-T

Tuner and System 1Tuner (Analog+Digital)

Receive CH Destination UK, I.R., CCIR Hyper+France CATV

CH Coverage Analog 45.75~858MHz

Digital E2~E69

Intermediate Analog

Frequency Picture(FP) 38.9 / 38.9 / 38.9MHz

Sound(FS) 33.4 / 32.9 / 32.4MHz

FP-FS 5.5 / 6.0 / 6.5MHz

Digital

Auto Tuning Method ALL Band (Not C.C.I.R. CH Plan)

Preset CH 4000 Service in total of Analog and Digital.

Stereo/Dual TV Sound Nicam/A2 Dual

Tuner Sound Muting Yes

G-3 Power Power Source AC 220-240V AC 50Hz

DC ---

Power Consumption at AC 31 W at AC 230 V 50 Hz

at DC --

Stand by (at AC) w/ EPG Timer --

w/o EPG Timer 0.49 W at AC 230 V 50 Hz

Per Year -- kWh/Year

Protector Power Fuse Yes

G-4 Regulation Safety CE(EN60065:2002+AMD.11:2008)

Radiation CE

X-Radiation ---

G-5 Temperature Operation

C ~ +40

Storage

-20

C ~ +60

Space Around Unit 100mm (4inch)

G-6 Operating Humidity Less than 80% RH

G-7 OSD Language English, Spanish, German, French, Italian, Swedish

Dutch, Russian, Portuguese, Turkish, Greek, Finnish

Hungarian, Polish, Danish, Norwegian, Czech, Slovak

G-8 Clock and Sleep Timer Max Time 120 Min

Timer Step 10 / 20 / 30 / 40 / 50 / 60 / 90 / 120 Min

On/Off Timer Program(On Timer / Off Timer) 1 Program / 1 Program

Timer Back-up (at Power Off Mode) more than -- Min Sec

EPG Timer Events --

PAL(B/G, D/K, I), SECAM(B/G, D/K)

BG / II / DK

DVB-T 36.167MHz

DVB-C 36.125MHz

GENERAL SPECIFICATIONS

G-9 Remote Unit RC-TR

Control Glow in Dark Remocon Yes

Remocon Format ORION

Format NEC

Custom Code 71-8E h

Power Source Voltage(D.C) 3V

UM size x pcs UM-4 x 2 pcs

Total Keys 41 Keys

Keys Power (Stand By) Yes

Information Yes

Audio /Yes

1 Yes

2 Yes

3 Yes

4 Yes

5 Yes

6 Yes

7 Yes

8 Yes

9 Yes

0 Yes

Input Select Yes

Guide(EPG) Yes

Menu Yes

Return Yes

Enter / CH List Yes

Yes

Mute Yes

Picture Size Yes

Volume Up Yes

Volume Down Yes

TV Yes

MEDIA Yes

Freeze No

Quick View No

Play No

Stop No

Pause No

Play Mode Yes

Rec No

T-Rec No

T'TEXT Keys Subtitle Yes

CH Up / Page Up Yes

CH Down / Page Down Yes

Freeze / Hold Yes

Quick View / Sub Page Yes

Search- / Teletext Yes

Play / Reveal Yes

Search+ / F.T.B Yes

Red/Skip- Yes

Green/Pause Yes

Yellow/Stop Yes

Cyan/Skip+ Yes

GENERAL SPECIFICATIONS

G-10 Features Power On Memory Yes

Auto Shut Off Yes

Just Clock Function No

Game Position No

DNR Yes

Comb Filter Yes

Auto Set Up (Fast installation) Language Yes

Country Yes

TV Location Yes

Auto Power Off Yes

E-POP Demo No

Tuner Mode Yes

Auto Tuning (Analog/DVB-T, DVB-C) Yes

CH sort Yes

ATS Yes

Auto clock (Digital tuner) Yes

Plug in start Yes

Picture Setting(TV) Picture Mode Yes

Brightness , Contrast , Color Yes

Tint Yes

Sharpness Yes

DNR Yes

Color Temperature Yes

Backlight Control Yes

MPEG NR Yes

DBC (Dynamic Backlight Control) No

Film Mode No

Picture Setting(PC) Picture Mode Yes

Brightness , Contrast , Color Yes

HOR POSITION , VER POSITION Yes

PHASE , CLOCK Yes

AUTO ADJUST Yes

RED , GREEN , BLUE No

DNR No

Color Temperature Yes

Backlight Yes

WXGA INPUT No

WVGA INPUT No

Audio Sound Mode No

Tone Control (Bass/Treble/Balance) Yes

Surround Yes

Equalizer Yes

Speaker No

Stable Sound Yes

BBE No

SRS WOW (SRS 3D/Focus/Tru Bass) No

Variable Audio Out No

Tuning Auto Tuning (Analog/Digital) Yes

Manual Tuning (Analog/Digital) Yes

Update Scan (Analog/Digital) No

TV Connection Yes

CH Skip (Analog/Digital) Yes

CH Sort (Analog/Digital) Yes

CH Edit (Analog/Digital) Yes

Clean CH List (Analog/Digital) Yes

Fine Tuning (Analog) Yes

Lock System Lock Yes

Channel Lock Yes

Parental Lock (Digital) Yes

Hotel Lock Yes

Screen Saver Inversion No

Full White No

Screen Saver Yes

Static Image No

GENERAL SPECIFICATIONS

T'Text Yes

Text type Fastext / Toptext

Text Language English, German, Swedish, Finnish, Hungarian,

Italian, French, Portuguese, Spanish, Czech,

Slovak, Polish, Estonian, Lettish, Lithuanian,

Slovenian, Rumanian, Russian,

Ukrainian, Turkish, Greek, Hebrew, Farisi

Arabic, Danish, Flemish, Icelandic, Byelorussian

Text and Picture No

PVR Timeshift No

Timer Recording No

EPG Recording No

USB Media Player Photo JPEG (.jpg/.jpeg), BMP (.bmp), PNG (.png)

Music WMA (.wma), WAVE (.wav), AAC-LC (.m4a)

HE-AAC (.m4a), MPEG1 (.mp2), MPEG4 (.m4a)

Video Container AVI (.avi), MKV (.mkv), MP4 (.mp4/,m4v),

PS (.mpg/.mpeg), TS (.ts/.tp/.trp), VOB (.vob)

Video Codec Xvid, MPEG1, MPEG2, MPEG4 SP/ASP, H.264

MJPEG

Audio Codec MPEG1, MPEG2, MPEG4, AAC, AAC-LC

HE-AAC, PCM/ADPCM, AC3

DivX DMF Support No

Text Text (.txt)

Internet Hbb TV No

BBC iPLAYER No

Wide Mode (AUTO/4:3/16:9/Zoom1/Zoom2/1:1) Yes

CH Label Yes

Reset TV Setting Yes

HD Zoom Yes

Picture Scroll (Vertical Position) No

PFC(Power Factor circuit) No

Freeze frame Yes

Plug and Play No

Power Management Yes

Hearing Impaired Yes

Audio Description Yes

Power On LED No

HDMI Mode Yes

PC Mode Yes

Blue Back Yes

Scart Spec Scart1 AV in Yes

AV out Yes (A.Tuner/D.Tuner)

S-Video in Yes

RGB in Yes

Scart2 AV in No

AV out No

S-Video in No

RGB in No

Digital Text (VBI teletext) Yes

MHEG-5 No

MHP No

EPG (BBC type 8Days Digital tuner only) Yes

OAD (Over Air Download) Yes

CI+ No

Common Interface (Digital tuner only) Yes

Rec Screen Status No

Ch sorting based on Ch List (Digital/Germany only) Yes

Rename Carrier (Digital) No

Edit Event Timer No

Software Update via CI Slot No

Preference Language (Audio/Subtitle/Digital Service)(Digital) Yes

DVB Subtitle (Digital) Yes

Clock Yes

DST No

Signal Status Yes

GENERAL SPECIFICATIONS

Digital Out Dolby Digital Dolby Digital

Dolby Digital Plus Dolby Digital

MPEG PCM

HE AAC PCM

Decode(Down Mix) Dolby Digital Yes

Dolby Digital Plus Yes

MPEG Yes

HE AAC Yes

PC Monitor Input Yes

VGA (640x480) Yes (60Hz)

VGA (720x400) No (Possible to Display)

WVGA (848x480) No

SVGA (800x600) Yes (60Hz)

XGA (1024x768) Yes (60Hz)

WXGA (1280x768) Yes (60Hz)

WXGA (1280x720) Yes (60Hz)

WXGA (1360x768) Yes (60Hz)

SXGA (1280x1024) Yes (60Hz)

WXGA+ (1440x900) Yes (60Hz)

WSXGA+ (1680x1050) No (Possible to Display)

FULL HD (1920x1080) Yes (60Hz)

HDMI Input Yes

VGA (640×480) Yes (60Hz)

VGA (720x400) No (Possible to Display)

WVGA (848x480) No

SVGA (800x600) Yes (60Hz)

XGA (1024x768) Yes (60Hz)

WXGA (1280x768) Yes (60Hz)

WXGA (1280x720) Yes (60Hz)

WXGA (1360x768) Yes (60Hz)

SXGA (1280x1024) Yes (60Hz)

WXGA+ (1440x900) Yes (60Hz)

WSXGA+ (1680x1050) No (Possible to Display)

FULL HD (1920x1080) Yes (60Hz)

720×480i (4:3) Yes (60Hz)

720×480i (16:9) Yes (60Hz)

720×480p (4:3) Yes (60Hz)

720×480p (16:9) Yes (60Hz)

720×576i (4:3) Yes (50Hz)

720×576i (16:9) Yes (50Hz)

720×576p (4:3) Yes (50Hz)

720×576p (16:9) Yes (50Hz)

1280×720p Yes (50/60Hz)

1920×1080i Yes (50/60Hz)

1920×1080p Yes (24/50/60Hz)

CEC(ORION Standard) No

Deep Color No

xvYCC No

Component Input Yes

720×480i (4:3) Yes (60Hz)

720×480i (16:9) Yes (60Hz)

720×480p (4:3) Yes (60Hz)

720×480p (16:9) Yes (60Hz)

720×576i (4:3) Yes (50Hz)

720×576i (16:9) Yes (50Hz)

720×576p (4:3) Yes (50Hz)

720×576p (16:9) Yes (50Hz)

1280×720p Yes (50/60Hz)

1920×1080i Yes (50/60Hz)

1920×1080p No (Possible to Display)

Wall Mount Size W x H(mm) Yes (75 x 75)

Screw Size M4 x 10

Stand Tilt No

Swievel No

GENERAL SPECIFICATIONS

G-11 Accessories Owner's Manual Language English/Czech/Slovak/Hungarian/Polish

w/Guarantee Card Yes

Remote Control Unit Yes

Rod Antenna No

Poles -

Terminal -

Loop Antenna (W/ Antenna Change Plug) No

Terminal -

DVB-T Antenna No

U/V Mixer No

DC Car Cord (Center+) No

Guarantee Card No

Warning Sheet No

Circuit Diagram No

Antenna Change Plug No

Service Facility List No

Important Safeguard No

Quick Set-up Sheet Yes

Battery Yes

UM size x pcs UM-4 x 2 pcs

OEM Brand No

AC Adapter No

AC Cord (for AC Adapter) No

AC Cord Yes

AV Cord (2Pin-1Pin) No

HDMI-DVI Cable No

3 in 1Mini Pin Cable (Y(CVBS)/Pb/Pr) Yes

Registration Card No

300 ohm to 75 ohm Antenna Adapter No

Stand Screw Yes (2pcs)

Stand Yes

Frame Stand No

G-12 Interface Switch Power 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

Menu Yes

Play No

Stop No

Eject No

Input Select/Enter Yes

Indicator Power/Stand-by Yes (Blue / Red)

On Timer No

GENERAL SPECIFICATIONS

Terminals Side Video Input 1 Mini Pin Jack(φ3.5)

Audio Input 1 RCA x 2(L, R)

S- Input 1 No

Video Input 2 No

Audio Input 2 No

S- Input 2 No

Video Output No

Audio Output No

Digital Audio Out (Coaxial) Yes

Euro Scart (21Pin) No

Component In Mini Pin Jack(φ3.5) (CVBS Mini Pin Jack Alternative)

Audio Input (Component In use) Composite Audio Input Alternative

HDMI Input 1 Yes

Audio Input (HDMI/DVI In use) PC Monitor Audio Input Alternative

USB (Media) Yes

Sub Woofer Output No

Diversity No

Ext Speaker No

DC Jack 12V(Center +) No

VHF/UHF Antenna Input No

Headphone Yes

CI Card Slot Yes

AC Inlet Yes

PC Monitor Input (D-Sub) No

Audio Input No

Rear Euro Scart (21Pin) Yes

Digital Audio Out (Coaxial) No

VHF/UHF Antenna Input DIN Type

PC Monitor Input (D-Sub) Yes

Audio Input Mini Pin Jack(φ3.5), STEREO

G-13 Set Size Approx. W x D x H (mm) 533.2 x 143.0 x 381.2

w/o Stand,Handle Approx. W x D x H (mm) 533.2 x 48.5 x 353.2

G-14 Weight Net Approx. 3.5kg (7.7 lbs)

Net w/o Stand,Handle Approx. 3.3kg (7.3 lbs)

Gross Approx. 4.5kg (9.9lbs)

Gross w/Master Carton (Approx.) --- kg ( --- lbs)

G-15 Carton Master Carton No

Content ---- Sets

Material -- /--

Dimensions W x D x H(mm) -- x -- x --

Description of Origin No

Gift Box Yes

Material Single/White

Dimensions W x D x H(mm) 620 x 129 x 452

Design As per Buyer's

Description of Origin No

Drop Test Natural Dropping At 1 Corner / 3 Edges / 6 Surfaces

Height (cm) 80

Container Stuffing 1650 Sets/45' Trailer

w/Pallet Yes

w/Wrapping Yes

G-16 Material Cabinet Cabinet Front PC+ABS 94V0 NON-HALOGEN

Cabinet Rear PS 94V0 NON-DECABROM

Stand PC+ABS 94V0 NON-HALOGEN

PCB Non-Halogen No

Eyelet Yes

G-17 Environment Environmental standard requirement Green procurement of JVC

Pb- Free Phase3(PHASE3A)

Measures for Whisker Yes

WEEE Yes

1. REMOVAL OF MECHANICAL PARTS 1-3: MAIN PCB (Refer to Fig. 1-3)

AND P.C. BOARDS

Disconnect the following connectors:

(CN2, CN3, CN5, CN6, CN11 and CN17)

CAUTION

Remove the screw (1).

Be careful not to remove the LVDS cable forcibly, because

Remove the 2 screws (2).

the LVDS cable may be damaged.

Remove the Plate Jack in the direction of arrow (A).

Remove the Shield Jack in the direction of arrow (B).

Remove the 4 screws (3).

1-1: STAND ASS'Y (Refer to Fig. 1-1)

Remove the Main Unit in the direction of arrow (C).

Remove the 3 screws (1).

Remove the Stand Ass'y in the direction of arrow.

DISASSEMBLY INSTRUCTIONS

(1)

(1) (1)

Stand Ass'y

(1)

(2)

(A)

Plate Jack (B)

Shield Jack

(3)

(C)

CN11 CN3

(3)

Main Unit

CN2

CN5

CN6

CN17

1-2: BACK CABI ASS'Y (Refer to Fig. 1-2)

Remove the screw (1).

1-4: POWER PCB (Refer to Fig. 1-4)

Remove the 3 screws (2).

Remove the Back Cabi Ass'y in the direction of arrow.

Disconnect the following connector:

(CP7001)

Remove the 6 screws (1).

3. Remove the Power PCB in the direction of arrow.

Fig. 1-4

Fig. 1-3

Fig. 1-1

Fig. 1-2

(1)

(2) (2)

(2)

(1)

(1) (1)

(1)

Power PCB

CP7001

1-5: REMOCON PCB / LED PCB / OPERATION PCB

(Refer to Fig. 1-5)

1. Remove the Remocon PCB in the direction of arrow (A).

Remove the screw (1).

Remove the Angle Hinge in the direction of arrow (B).

4. Unlock the 2 supports (1).

5. Remove the LED PCB in the direction of arrow (C).

Remove the Operation PCB in the direction of arrow (D).

DISASSEMBLY INSTRUCTIONS

LED PCB

(B)

(2)

(D)

Operation PCB

(1)

(C)

(A)

Remocon PCB

Angle Hing

Fig. 1-5

2. REMOVAL AND INSTALLATION OF

3. When IC starts moving back and forth easily after

FLAT PACKAGE IC

desoldering completely, pickup the corner of the IC using

tweezers and remove the IC by moving with the IC

REMOVAL desoldering machine. (Refer to Fig. 2-3.)

1. Put Masking Tape (cotton tape) around the Flat Package NOTE

IC to protect other parts from any damage.

(Refer to Fig. 2-1.) Some ICs on the PCB are affixed with glue, so be

careful not to break or damage the foil of each IC

NOTE leads or solder lands under the IC when removing it.

Masking is carried out on all the parts located within

10 mm distance from IC leads.

DISASSEMBLY INSTRUCTIONS

Fig. 2

Masking Tape

(Cotton Tape) IC

Blower type IC

desoldering machine

Tweezers

2. 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 4. Peel off the Masking Tape.

can move back and forth easily after desoldering the

leads completely. 5. Absorb the solder left on the pattern using the Braided

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

Fig. 2-2

Fig. 2-3

Fig. 2-4

Blower type IC

desoldering machine

IC pattern

Braided Shield Wire

Soldering Iron

INSTALLATION 4. When bridge-soldering between terminals and/or the

soldering amount are not enough, resolder using a

1. Take care of the polarity of new IC and then install the Thintip Soldering Iron. (Refer to Fig. 2-8.)

new IC fitting on the printed circuit pattern. Then solder

each lead on the diagonal positions of IC temporarily.

(Refer to Fig. 2-5.)

5. Finally, confirm the soldering status on four sides of the

IC using a magnifying glass.

Confirm that no abnormality is found on the soldering

position and installation position of the parts around the

IC. If some abnormality is found, correct by resoldering.

NOTE

2. Supply the solder from the upper position of IC leads

sliding to the lower position of the IC leads. When the IC leads are bent during soldering and/or

(Refer to Fig. 2-6.) repairing, do not repair the bending of leads. If the

bending of leads are repaired, the pattern may be

damaged. So, always be sure to replace the IC in this

DISASSEMBLY INSTRUCTIONS

Fig. 2-5

Fig. 2-8

Thin-tip Soldering Iron

Soldering Iron

Solder temporarily Solder temporarily

damaged. So, always be sure to replace the IC in this

case.

3. Absorb the solder left on the lead using the Braided

Shield Wire. (Refer to Fig. 2-7.)

NOTE

Do not absorb the solder to excess.

Fig. 2-6

Fig. 2-7

Soldering Iron

Supply soldering

from upper position

to lower position

Solder

Soldering Iron

Braided Shield Wire

This unit is provided with the following SERVICE MODES so you can repair, examine and adjust easily.

CAUTION

Do not feel after other MENU.

1. Check of the SUM DATA and MICON VERSION on the screen.

1-1:

Press the MENU ---> 1147 button on the remote control to select "Setup".

1-2:

Press the DOWN button on the remote control to select "Version Info".

1-3:

On the screen as shown in Fig. 1-1.

Model Name : mt5365_eu_dvbs_cIplus_verf

Version : IDTV0801_002114_8_001_70

OUl Code : 0x000C3B

H/W Model ID : 0x0D12

H/W Version ID : 0x0001

S/W Model ID : 0x0D12

S/W Version ID : 0x0001

Checksum : C7C6

Serial Number : 2012-03-19 16:15:59

Fig. 1-1

SERVICE MODE LIST

2. BASIC ADJUSTMENTS

Prepare the following measurement tools for electrical 2-1: WHITE BALANCE

adjustments.

1. Place the set in Aging Test for more than 15 minutes.

1. Pattern Generator 2. Please select input About mode to adjust W/B.

3. Receive the gray scale pattern from the Pattern

On-Screen Display Adjustment Generator.

4. Press the INPUT SELECT button on the remote control

1. Press the MENU---> 1147 button on the remote control. to set to the AV mode.

2. Press the DOWN button on the remote control. 5. Using the remote control, set the brightness and

3. Select the "Video" menu, then press contrast to normal position.

ENTER button on the remote control. 6. Press the MENU---> 1147 button on the remote control.

4. Select the "Color Temperature" menu , then press 7. Press the DOWN button on the remote control.

ENTER button on the remote control. 8. Select the "Video" menu, then press

5. On the screen as shown in Fig. 1-1. ENTER button on the remote control.

9. Select the "Color Temperature" menu , then press

ENTER button on the remote control.

10. Press the UP/DOWN button on the remote control

Color Temperature Cool <> to select the "R Gain", "G Gain", "B Gain", "R Offset",

"G Offset", "B Offset.

R Gain -37 11. Adjust the LEFT/RIGHT button on the remote control

G Gain 0 to whiten the R Gain, G Gain, B Gain, R Offset, G Offset,

B Gain 102 B Offset at each step tone sections equally..

R Offset -2 12. Perform the above adjustments 10 and 11 until the white

G Offset

color is achieved.

ELECTRICAL ADJUSTMENTS

1. ADJUSTMENT PROCEDURE

G Offset

color is achieved.

B Offset -1

Fig 1-1

ELECTRICAL ADJUSTMENTS

3. ELECTRICAL ADJUSTMENT PARTS LOCATION GUIDE (WIRING CONNECTION)

LCD PANEL

POWER PCB

CP501

CP7001

REMOCON PCB

J502

LED PCB

CD7602

CD3004

CD2801

MAIN UNIT

SPEAKER

CN3

CN11

CN17

CN2

CN6

CN5

CN26

CN23

CN27

CN8

CN25

CN24 CN14

CN9

CN13

CN7

OS7601 CP7601

OPERATION PCB

CP2204

CD805

TROUBLESHOOTING GUIDE

(LCD SECTION)

POWER DOES NOT TURN ON

Is F501 broken?

Is there voltage C502

305VDC?

Change F501.

Yes

Check D507, D508, D518, D510

and peripheral circuit.

Yes

Check IC501 and peripheral

circuit.

Is there voltage at pin6

of IC501 21VDC?

Yes

Change R510 and peripheral

circuit.

Yes

Is there voltage Q501

169VDC?

Yes

Is there voltage at pin5

of IC501 21VDC?

Check IC501 and peripheral

circuit.

Yes

Is there voltage at pin 8

of IC501 169VDC?

Check D505 and peripheral

circuit.

Is there voltage at

pin1 of IC501 5.7VDC?

Check R516, R534 and

peripheral circuit.

Change POWER PCB.

Yes

TROUBLESHOOTING GUIDE

THE PICTURE APPEARS,

BUT THE AUDIO DOES NOT

APPEARS.

Is SP WIRE CONNECTOR

connected?

Is there signal at wave

(SP.Lift) and wave

(SP.Right)?

Is there signal at pins 1

and

of IC YD

1517

(F)?

Connect SP WIRE

CONNECTOR.

Change SPEAKER.

Check IC YD1517(F) and

peripheral circuit.

Yes

and

of IC YD

1517

(F)?

peripheral circuit.

Yes

Is there signal at pins 4

and 6 of IC YD1517(F)? Check IC YD1517(F) and

peripheral circuit.

Yes

Change IC YD1517(F).

Is there voltage at pin 7

of IC YD1517(F)

+12VDC?

Check D514 and peripheral

circuit.

Yes

Page is loading ...

JVC LT-22HG45E User manual

Brand: JVC

Model: LT-22HG45E

Category: LCD TVs

Type: User manual

Download PDF

report

JVC LT-22HG45E User manual

JVC LT-22HG45E User manual

Related papers

Other documents