Hitachi 50V500A Service Manual
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Hitachi 50V500A Service Manual

Hitachi 50V500A Service Manual

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SERVICE MANUAL
N T S C
This addendum includes all information necessary for the 50VX500, 50V500A and 60VX500, except
information that is the same as the 50V500 and 60V500A. All features/adjustments for 50VX500, 50V500A
and 60VX500 are the same as 50V500 and 60V500A. Please refer to Service Manual PA No. 0178 when
servicing model 50VX500, 50V500A and 60VX500.
The electrical and mechanical parts list only lists parts that are different from Service Manual PA No. 0178.
Electrical Parts Differences . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
50" Exploded View Drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
50" Exploded View Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
60" Exploded View Drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
60" Exploded View Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
NOTE: This product is to be serviced at board level.
NOTE:
If a part does not list in this addendum, please refer to Service Manual PA No. 0178. For model 50VX500, refer
to model 50V500 (50") in Service Manual PA No. 0178. For model 50V500A and 60VX500, refer to model
60V500A (60") in Service Manual PA No. 0178.
CAUTION:
These servicing instructions are for use by qualified service personnel only. To reduce the risk of electric shock
do not perform any servicing other than that contained in the operating instructions unless you are qualified to
do so.
Components having special safety characteristics are identified by a
Data and its supplements and bulletins. Before servicing the chassis, it is important that the service technician read and follow
the "Important Safety Instructions" in this Service Manual.
* The 50VX500 has been changed to the LC37E chassis.
Please refer to the LC37E when servicing the 50VX500.
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT
LCD REAR PROJECTION TELEVISION
SEPTEMBER 2003
L L C C 3 3 7 7 / / E E / / F F
C C h h a a s s s s i i s s
USE ISOLATION TRANSFORMER WHEN SERVICING
Version 0185.03
PA
*
50VX500*
50V500A
60VX500
CONTENTS
SAFETY NOTICE
on the schematics and on the parts list in this Service
!
HHEA-MANUFACTURING DIVISION
No. 0185
*
R/C: CLU-5729TSI
Updated 07/12/05
Updated 07/12/05
Updated 07/12/05
LC37E
LC37E
LC37F

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  • Page 1 If a part does not list in this addendum, please refer to Service Manual PA No. 0178. For model 50VX500, refer to model 50V500 (50”) in Service Manual PA No. 0178. For model 50V500A and 60VX500, refer to model 60V500A (60”) in Service Manual PA No. 0178.
  • Page 2 * suffix 'D' added to indicate Dud Fee is now included Notes: Beside the parts difference listed above, please refer to Service Manual PA NO. 0178 for all other electrical parts. Model 50VX500 has been changed from LC37 to LC37E chassis. 50VX500 - refer to model 50V500A. CH 3...
  • Page 3 UX22202D* Optical Engine Assy, (includes Drive and FC4 PWB) X480266 Audio PWB, (includes Main and Sub PWB) UE22343 LC37-E Chassis 50V500A (same as 50VX500 except screen/cabinet) HA01231 Lamp Power Unit UX21511 Lamp Assy JT24143 Signal PWB Assy, (includes Terminal and DVI PWB)

  • Page 4: Exploded View

    LC37/E/F EXPLODED VIEW 50V500/50V500A/50VX500 Drawing 1 NOTES: Some parts may appear different than those shown in the exploded view. When ordering, refer to the replacement parts list for the correct part number. The circled numbers correspond to the parts list shown on page 7.
  • Page 5 LC37/E/F EXPLODED VIEW 50V500/50V500A/50VX500 Drawing 2 NOTES: Some parts may appear different than those shown in the exploded view. When ordering, refer to the replacement parts list for the correct part number. The circled numbers correspond to the parts list shown on page 7.
  • Page 6 LC37/E/F EXPLODED VIEW 50V500/50V500A/50VX500 Drawing 3 NOTES: Some parts may appear different than those shown in the exploded view. When ordering, refer to the replacement parts list for the correct part number. The circled numbers correspond to the parts list shown on page 7.
  • Page 7 LC37/E/F EXPLODED VIEW 50V500/50V500A/50VX500 Drawing 4 NOTES: Some parts may appear different than those shown in the exploded view. When ordering, refer to the replacement parts list for the correct part number. The circled numbers correspond to the parts list shown on page 7.
  • Page 8 LC37/E/F 50" EXPLODED VIEW PARTS LIST 50V500 50V500A 50VX500 PART No PART No PART No DESCRIPTION NT03101 NT03103 NT03105 50V500 FRAME ASSY QD36131 QD36131 QD36132 SCREEN FRAME 50V500 JT24171 JT24171 JT24171 CONTROL PWB ASSY PC05731 PC05731 PC05731 POWER BUTTON V500...
  • Page 9 LC37/E/F EXPLODED VIEW 60VX500/60V500A Drawing 1 NOTES: Some parts may appear different than those shown in the exploded view. When ordering, refer to the replacement parts list for the correct part number. The circled numbers correspond to the parts list shown on page 12.
  • Page 10 LC37/E/F EXPLODED VIEW 60VX500/60V500A Drawing 2 NOTES: Some parts may appear different than those shown in the exploded view. When ordering, refer to the replacement parts list for the correct part number. The circled numbers correspond to the parts list shown on page 12.
  • Page 11 LC37/E/F EXPLODED VIEW 60VX500/60V500A Drawing 3 NOTES: Some parts may appear different than those shown in the exploded view. When ordering, refer to the replacement parts list for the correct part number. The circled numbers correspond to the parts list shown on page 12.
  • Page 12 LC37/E/F EXPLODED VIEW 60VX500/60V500A Drawing 4 NOTES: Some parts may appear different than those shown in the exploded view. When ordering, refer to the replacement parts list for the correct part number. The circled numbers correspond to the parts list shown on page 12.
  • Page 13 LC37/E/F 60" EXPLODED VIEW PARTS LIST 60V500A 60VX500 PART No PART No DESCRIPTION NT03104 NT03106 60V500 FRAME ASSY QD36511 QD36512 SCREEN FRAME 60V500 JT24171 JT24171 CONTROL PWB ASSY PC05731 PC05731 POWER BUTTON V500 KQ03291 KQ03291 LED LENS V500 KR02914 KR02912 KR02916 60V SCREEN ASSY NA66782...

  • Page 15: Table Of Contents

    No. 0178 50V500/LC37 60V500A/LC37F LC37 Chassis NTSC R/C: CLU-5729TSI LC37F Chassis TO GO TO A CHAPTER, CLICK ON ITS HEADING BELOW SAFETY PRECAUTIONS ......................2 PRODUCT SAFETY NOTICE....................3 SERVICING PRECAUTIONS ....................4 AGENCY REGULATORY INFORMATION ................8 TABLE OF CONTENTS ......................9 SPECIFICATIONS........................11 FEATURES AND FUNCTIONS....................22 PWB ADJUSTMENTS ......................49 TROUBLESHOOTING FLOW CHARTS................95 DC VOLTAGE ........................96...

  • Page 16: Safety Precautions

    LC37/LC37F SAFETY PRECAUTIONS Leakage Current Hot Check NOTICE: Comply with all cautions and safety-related notes Plug the AC line cord directly into a 120V AC 60Hz outlet (do not use located on or inside the cabinet and on the chassis or optic unit. an isolated transformer for this check).

  • Page 17: Product Safety Notice

    For continued ultraviolet protection, replace optic unit with always consult the current HITACHI Service Manual. A subscrip- original type or HITACHI equivalent type. tion to, or additional copies of HITACHI Service Manuals may be obtained at a nominal charge from HITACHI Sales Corporation. POWER SOURCE...

  • Page 18: Servicing Precautions

    LC37/LC37F SERVICING PRECAUTIONS CAUTION: Before servicing instruments covered by this service Immediately before handling any semiconductor component or data and its supplements and addenda, read and follow the SAFE- semiconductor-equipped assembly, drain off any electrostatic TY PRECAUTIONS on page 2 of this publication. charge on your body by touching a known earth ground.
  • Page 19 IC Removal/Replacement Inspect (on the circuit board copper side) the solder joints of Some Hitachi unitized chassis circuit boards have slotted holes the two “original leads”. If they are not shiny, reheat them (oblong) through which the IC leads are inserted and then bent flat and, if necessary, apply additional solder.
  • Page 20 Critical Copper Pattern requires special soldering techniques to ensure the maintenance of reliability and safety standards, contact Trace along the copper pattern from both wire sides of the pat- your Hitachi personnel. tern break and locate the nearest component directly connected to the affected copper pattern.

  • Page 21: Component Removal

    LC37/LC37F NOTE: These components are affixed with glue. Be careful not to break or damage any foil under the component or at the pins of the ICs when removing. Usually applying heat to the component for a short time while twisting with tweezers will break the component loose. Leadless Chip Components How to Replace Flat-lC (surface mount)

  • Page 22: Agency Regulatory Information

    Modifications The FCC requires the user to be notified that any changes or modifications made to this device that are not express- ly approved by Hitachi Home Electronics (America), Inc. may void the user’s warranty. Cables Any cables that are supplied with the system must be replaced with identical cables in order to assure compliance with FCC rules.

  • Page 23: Table Of Contents

    LC37/LC37F TO GO TO AN ADJUSTMENT, CLICK ON ITS HEADING BELOW TABLE OF CONTENTS I. SPECIFICATIONS ..................................11 1. Feature....................................11 2. Main Parts and A/V Terminals ............................12 3. White Balance ..................................13 4. Performance Specifications ..............................13 5. Terminals and Other Functions ............................14 5.1 Available signal Format and Frequency ........................14 5.2 Terminal Shape ................................14 5.3 DVI Specification ................................15...
  • Page 24 LC37/LC37F POWER P.W.B...................................92 1. Power Supply ..................................93 1.1 Ouput Voltage ................................93 1.2 Portection Circuit Blcok Diagram..........................94 TROUBLE SHOOTING FLOWCHART ..........................95 DC VOLTAGE ..................................96 VII. WAVEFORMS ..................................108 VIII. REPLACEMENT PARTS LIST ............................114 EXPLODED VIEW ................................138 PRINTED CIRCUIT BOARD ............................148 CONNECTION DIAGRAM ..............................160 XII.

  • Page 25: Specifications

    LC37/LC37F I. SPECIFICATION 1.0 Features: • Superfine Picture Quality 1280 Line Horizontal Resolution • Remote (Controls many VCR brands, cable boxes, satellite boxes, and other audio equipment.) • New Easy-to-Use (3-Language) On-Screen Menu • New AV Network Infra-Red (IR) System Control up to 4 components with one remote.

  • Page 26: Main Parts And A/V Terminals

    LC37/LC37F I. SPECIFICATION BACK TO ADJUSTMENTS...

  • Page 27: White Balance

    LC37/LC37F I. SPECIFICATION 3. White Balance HIGH: 14,700K+23MPCD (X=0.260±0.01, Y=0.280±0.01) MEDIUM: 7500K+0MPCD (X=0.301±0.02, Y=0.311±0.02) STANDARD: 6500K+0MPCD (X=0.313±0.02, Y=0.329±0.02) Black/White: 5400K+0MPCD (X=0.334±0.02, Y=0.343±0.02) at screen center LC37 LC37F UE22331 UE22334 HIGH 14700 0.260 MEDIUM Black/White 257 cd/m 370 cd/m 240 cd/m 166 cd/m MAX ±4mm MAX ±3mm...

  • Page 28: Terminals And Other Functions

    LC37/LC37F I. SPECIFICATION BACK TO ADJUSTMENTS...

  • Page 29: Dvi Specification

    LC37/LC37F I. SPECIFICATION BACK TO ADJUSTMENTS...

  • Page 30: Aspect Specification For Each Input Source

    LC37/LC37F I. SPECIFICATION BACK TO ADJUSTMENTS...

  • Page 31: Aspect Mode: On

    LC37/LC37F I. SPECIFICATION BACK TO ADJUSTMENTS...

  • Page 32: Aspect Mode Resolution

    LC37/LC37F I. SPECIFICATION 6.1.3 Aspect Mode Resolution 4x3 Format 16x9 Format 16:9 16:9 16x9 Standard Standard 1386 dots 1386 dots 16:9 16:9 16x9 Zoom Zoom 16x9 Standard Standard 998 dots (95%) 998 dots (95%) 16x9 Expanded Expanded 16x9 Zoom1 Zoom1 Zoom2 16x9 Zoom2...

  • Page 33: Black Side Panel Operation

    LC37/LC37F I. SPECIFICATION 6.1.4 Black Side Panel Operation Menu Black Side Panel: ON Menu Black Side Panel: OFF Black Side Panel Gray Side Panel 6.1.5 Vertical Position Operation Input Vertical Position 16:9 16:9 Standard Zoom Standard Expanded Zoom1 Zoom2 Video NTSC 10 Step 10 Step...

  • Page 34: Pip Available Mode

    LC37/LC37F I. SPECIFICATION BACK TO ADJUSTMENTS...

  • Page 35: Pip Mode

    LC37/LC37F I. SPECIFICATION 6.2.2 PIP Mode Resolution POP Mode 1386 dots 1042 dots 344 dots PIP Mode 16x9 16x9 16x9 16x9 1386 dots 304 dots 16x9 16x9 16x9 16x9 16x9 16x9 16x9 16x9 1386 dots 455 dots SPLIT Mode STROBE Mode SURF12 Mode 693 dots 344 dots...

  • Page 36: Features And Functions

    LC37/LC37F II. FEATURES AND FUNCTIONS 1.0 FRONT PANEL CONTROLS PUSH PUSH VOL- VOL+ INPUT MENU PHOTO MC INPUT 5 VIDEO L/MONO S-VIDEO AUDIO EXIT SELECT MENU/SELECT button This button allows you to enter the MENU, making it possible to set TV features to your preference without using the remote. This button also serves as the SELECT button when in MENU mode.

  • Page 37: Important Notes

    LAMP indicator - NORMAL OPERATION INDICATOR IS OFF If light is lit, the lamp has failed. See page 29-32 for lamp replacement procedure. Consult your Hitachi dealer for proper part. If light is blinking, lamp cover is not assembled securely after replacement.
  • Page 38 LC37/LC37F II. FEATURES AND FUNCTIONS 1.0 FRONT PANEL CONTROLS (CONT.) The front panel jacks are provided as a convenience to allow you to easily connect a camcorder or VCR as shown in the following examples: INPUT 5 INPUT 5 VIDEO L/MONO VIDEO L/MONO...

  • Page 39: Rear Panel Jacks

    LC37/LC37F II. FEATURES AND FUNCTIONS 2.0 REAR PANEL JACKS ANT A DVI-HDTV INPUT 1 (MONO)/L CONVERTER AUDIO Y/VIDEO ANT B INPUT 2 (MONO)/L AUDIO (MONO)/L VIDEO S-VIDEO INPUT 3 AUDIO TO HI-FI CENTER (MONO)/L VIDEO S-VIDEO INPUT 4 BLASTER VIDEO S-VIDEO MONITOR AUDIO...
  • Page 40 LC37/LC37F II. FEATURES AND FUNCTIONS 2.0 REAR PANEL JACKS (CONT.) Component: Y-P Inputs Inputs 1 and 2 provide Y-P jacks for connecting equipment with this capability, such as a DVD player or Set Top Box. You may use composite video signal for INPUT:2. 1.
  • Page 41 LC37/LC37F II. FEATURES AND FUNCTIONS 2.0 REAR PANEL JACKS (CONT.) TYPICAL FULL-FEATURE SETUP CONNECT TO (Provided) IR BLASTER Sensor D-VHS Outside antenna or cable TV coaxial cable DIGITAL OUTPUT DVD Player 2-Way signal splitter HDTV Set-Top Box OUTPUT OUTPUT OUTPUT ANT A VCR #1 DVI-HDTV...
  • Page 42 LC37/LC37F II. FEATURES AND FUNCTIONS 2.0 REAR PANEL JACKS (CONT.) • S-VIDEO connections are provided for high performance laserdisc players, VCRs etc. that have this feature. Use these connections in place of the standard video connection if your device has this feature. •...

  • Page 43: Lamp Replacement

    30-45 minutes. If “LAMP” indicator is still lit, check the lamp unit assembly. NOTES: • Contact your Hitachi dealer for a new lamp unit. Using other lamps may cause damage to the TV Set. TYPE NAME: LC37 LAMP ASSEMBLY PART NUMBER: UX21511 •...
  • Page 44 LC37/LC37F II. FEATURES AND FUNCTIONS 3.0 LAMP REPLACEMENT (CONT.) Turn off the main power switch and unplug the power cord. Wait at least 30 minutes to allow the lamp to cool down before replacing it. 120V FRONT COVER PUSH POWER THE LAMP IS VERY HOT AND MAY CAUSE FIRE OR SEVERE BURNS.
  • Page 45 LC37/LC37F II. FEATURES AND FUNCTIONS 3.0 LAMP REPLACEMENT (CONT.) Remove the screw securing the lamp cover with a Phillips head screw driver as shown. Remove the lamp cover. SCREW LAMP COVER PHILLIP HEAD SCREW DRIVER THE LAMP IS VERY HOT AND MAY CAUSE FIRE OR SEVERE BURNS. WAIT AT LEAST 30~45 NOTE: MINUTES TO ALLOW THE LAMP TO COOL BEFORE PROCEEDING WITH LAMP REMOVAL.
  • Page 46 LC37/LC37F II. FEATURES AND FUNCTIONS 3.0 LAMP REPLACEMENT (CONT.) Without installing the lamp cover, the power will be off and the Lamp Indicator will flash (see page 23). Be sure to install the lamp cover by re-engaging the two clips and tighten the screws before turning the power on, otherwise it may cause unusual colors. SCREW LAMP COVER PHILLIP HEAD...

  • Page 47: On-Screen-Display Features

    LC37 II. FEATURES AND FUNCTIONS 4.0 ON-SCREEN-DISPLAY FEATURES Picture Mode Select between the two picture modes; Day and Night. Contrast Adjust contrast. Brightness Adjust brightness. Color Adjust color. Tint Adjust tint. Sharpness Adjust sharpness. Video Color Temperature Set this to High for less intense color with more blue, set to Medium for natural color, set to Standard for standard colors or Black/White for more reddish color.

  • Page 48: Video Setting

    LC37/LC37F II. FEATURES AND FUNCTIONS 4.1 VIDEO SETTING Select Video to adjust picture settings and improve picture quality. You can customize each of the Video Inputs to Video your preference to increase viewing performance and pleasure depending upon the video program being viewed. If RESET is selected, only the selected mode will reset to initial conditions.
  • Page 49 LC37/LC37F II. FEATURES AND FUNCTIONS 4.1 VIDEO SETTING Video ANT A/B Video Picture Mode Night Audio Contrast 100% Aspect Brightness Chan. Manager THUMB Color STICK Locks Tint Setup SELECT Sharpness Move High Color Temperature High Black Enhancement Dynamic Contrast Mode Reset Video Settings Move Select...

  • Page 50: Color Management

    LC37/LC37F II. FEATURES AND FUNCTIONS 4.1 VIDEO SETTING This function allows you to Reset the Video Menu Settings of the present input and return it to the Day or Night Reset Video conditions depending on the selected Video mode. Settings Video ANT A/B Video...

  • Page 51: Auto Color

    This involves a process known as 3:2 pulldown. When Auto Movie Mode is turned On from the Video menu, your Hitachi LCD TV will activate the circuitry for this special feature to improve video performance when watching film based sources.

  • Page 52: Channel Manager

    LC37/LC37F II. FEATURES AND FUNCTIONS 4.2 CHANNEL MANAGER Chan. Manager Select Antenna if you are using an indoor or outdoor antenna. Select Cable if you have cable TV. Chan. Manager Chan. Manager Ant. A Ant. A Ant. B Channel Source THUMB Move Select...

  • Page 53: Auto Channel Scan

    LC37/LC37F II. FEATURES AND FUNCTIONS 4.2 CHANNEL MANAGER (CONT.) This feature will automatically store active TV channels in Auto Channel Scan. This will allow you to skip Auto Channel Scan unused channels when using CHANNEL UP ( ) or DOWN ( ). Chan.

  • Page 54: Connecting Av Network

    Your Hitachi LCD TV is equipped with an AV Network feature. This feature helps to control your external Audio/Video equipment (VCR, Set Top Box, DVD, etc.). Once this is setup, it allows your IR Mouse connector to control your equipment using your Hitachi TV Remote Control.

  • Page 55: Av Network Setup Wizard

    5.1 AV NETWORK SETUP WIZARD Follow the steps below to setup your AV network (See page 42 for AV Network Codes). There are six steps in the setup procedure (DVD setup example below). HITACHI AV NET SET UP THUMB POWER...

  • Page 56: Av Network Codes

    Video Concepts ......0045 Hitachi ....... . . 0819 Proscan .

  • Page 57: How To Use Av Network

    LC37/LC37F II. FEATURES AND FUNCTIONS 5.1 HOW TO USE THE AV NETWORK A/V NET button Press this button to access the Audio/Video network (AV Net) menu. The AV Net allows the user to control external components with the LCD Rear PTV’s remote control. When you press the AV NET button, the following window will pop up within the Display Monitor screen.
  • Page 58 II. FEATURES AND FUNCTIONS LC37/LC37F 5.1 HOW TO USE THE AV NETWORK Photo MC The Photo MC feature is useful for viewing digital still pictures from your digital camera using a memory card and displaying them on the TV screen. Insert Photo MC (memory card) to be viewed to a PC Card adapter. Insert the loaded PC Card adapter to the Photo MC slot of the control panel in the front of the TV.

  • Page 59: Slide Show

    II. FEATURES AND FUNCTIONS LC37/LC37F 5.1 HOW TO USE THE AV NETWORK SLIDESHOW Select this menu item to start a slideshow of the Photos in the memory card. Time interval selections can be set from 5, 10 and 30 seconds. THUMB 1/10 Jump...
  • Page 60 Custom INFO GUIDE LAST CH Move Device Setting INFO THUMB STICK HITACHI AV NET WIZARD (Learning) Set Top Box THUMB STICK Use this wizard to manually learn Custom SETUP or modify your AV NET soft keys. See Page 47 BACK...
  • Page 61 TV remote control. Highlight CUSTOM, and THUMBSTICK to enter AV NET WIZARD. Select MODIFY HITACHI AV NET WIZARD (Learning) Use this wizard to manually learn to make changes on equipment already stored in the CUSTOM memory. or modify your AV NET soft keys.

  • Page 62: How To Use The Aspect Mode

    II. FEATURES AND FUNCTIONS 5.1 HOW TO USE THE AV NETWORK ASPECT button Press this button to quickly change the picture format ASPECT ratio. Depending on the input signal, the picture format ratio allows you to adjust the images through the following options. 4:3 Standard Use this aspect mode to display conventional (4:3) images.

  • Page 63: Pwb Adjustments

    LC37/LC37F III. ASSEMBLED P.W.B. ADJUSTMENT Memory Initialization Adjustment Procedure Enter I C mode from the front panel by pressing and holding the INPUT and the POWER button for two seconds, then release. Note: When entering the I C menu mode, make sure to wait about two minutes after power off.

  • Page 64: Factory Reset

    LC37/LC37F III. ASSEMBLED P.W.B. ADJUSTMENT 2. FACTORY PRESET (1) (1) Cursor right ( ) to select factory reset (Fact Reset) of the OSD and check that the set returns to delivery settings (CH 03) (see page 88-91). (2) Do not unplug the set until this operation is completed and do not perform any key operation either, after this operation each setting is reset delivery settings automatically.

  • Page 65: Raster Position Adjustment

    VALUE TRAPEZOIDAL DISTORTION VERTICAL LINE TILT VERTICAL LINE TRAPEZOIDAL DISTORTION HORIZONTAL LINE TILT HORIZONTAL LINE EDGE LINE POSITION VERTICAL HORIZONTAL Parallel Parallel CONDITION (1)RECEIVE THE HITACHI CIRCLE PATTERN SIGNAL. (2)BRIGHTNESS/CONTRAST------STANDARD CONDITION CONTRAST: MAX OTHER PARAMETERS: CENTER POSITION BACK TO ADJUSTMENTS...

  • Page 66: Adjustment Mechanism

    LC37/LC37F III. ASSEMBLED P.W.B. ADJUSTMENT 3.1.2 ADJUSTMENT MECHANISM Raster position should be adjusted by using 6 axis adjustment table. A-2L A-1L Base plate (1) Base plate (3) A-1R A-2R Base plate (2) A-1; FIXING SCREW FOR TRAPEZOID DISTORTION A-2; ADJUSTMENT SCREW FOR TRAPEZOID DISTORTION B ;...

  • Page 67: Flow Chart For Adjustment

    LC37/LC37F III. ASSEMBLED P.W.B. ADJUSTMENT 3.1.3 FLOW CHART FOR ADJUSTMENT (1) CONFIRM TRAPEZOID. (2) IF OUT OF SPEC, ADJUST TRAPEZOID REFER TO 3.1.4 (1) TRAPEZOID DISTORTION. (3) CONFIRM TILT. (4) IF OUT OF SPEC, ADJUST TILT REFER TO 3.1.4 (2) TILT. (5) CONFIRM VERTICAL POSITION.

  • Page 68: Adjustment Method

    LC37/LC37F 3.2 Electrical picture position adjustment Note: If horizontal or vertical position can not be adjusted within the specification by mechanical raster position alignment, adjust position by I C menu. (1) Enter ‘H POSITION’ service menu and adjust horizontal picture position by using the cursor on the remote contorl. (2) Enter ‘V POSITION’...

  • Page 69: Display Area Specification

    H size marker 50V500:0.5~-1.0(-16mm) 60V500A:0.5~-1.0(-20mm) H size marker 50V500:0.5~-1.0(-16mm) 60V500A:0.5~-1.0(-20mm)

  • Page 70: Amplitude Adjustment

    LC37/LC37F III. ASSEMBLED P.W.B. ADJUSTMENT 5.0 Amplitude Adjustment 5.1 RGB Amplitude Adjustment Preparation for adjustment (1) Recall user menu and select ‘Video’ _ ‘Picture Mode’ _ ‘Day’ _ ‘Reset’. (2) Input 525p(480p) of RGB amplitude adj. signal into INPUT1 (Component) input. Adjustment procedure (1) Receive 525p(480p) signal (ASPECT 16:9 Standard).

  • Page 71: Ghost Adjustment

    LC37/LC37F III. ASSEMBLED P.W.B. ADJUSTMENT 7.0 GHOST ADJUSTMENT ADJUST ITEMS ADJ. PROCEDURE ADJ.SIGNAL Internal signal from IC(Black window pattern with 50% raster signal) GHOST ADJUST MODE LCD ADJUST GHOST ADJUSTMENT First , reduce the “SHP” pressing left button of the remote until ghost appears at the left hand side of the window pattern.

  • Page 72: Gamma) White Balance Adjustment

    LC37/LC37F III. ASSEMBLED P.W.B. ADJUSTMENT 10.0 GAMMA Correction (White Balance) GAMMA data (white balance) should not be adjusted. This data are adjusted by the factory and MEMORY INITialize cannot erase these data. If and only if the customer request to change the GAMMA correction, follow the instruction below.

  • Page 73: Color (White) Uniformity Adjustment

    LC37/LC37F III. ASSEMBLED P.W.B. ADJUSTMENT III. ASSEMBLED P.W.B. ADJUSTMENT 11.0 Color Uniformity (White Uniformity) COLOR UNIFORMITY data should not be adjusted. This data are adjusted by the factory and MEMORY INITialize cannot erase these data. If and only if the customer request to change the color uniformity, follow the instruction below.

  • Page 74: Door Protection Operation Check

    LC37/LC37F III. ASSEMBLED P.W.B. ADJUSTMENT 12.0 DOOR PROTECTION OPERATION CHECK Adjustment procedure (1) Remove Lamp cover and turn the set on. (2) Check that the lamp dose not light, and “Lamp indicator" is flash red. (3) Turn the set off and attach Lamp cover again 13.0 LAMP HOLDER PROTECTION OPERATION CHECK Adjustment procedure (1)Remove Lamp holder and turn the set on.( attach Lamp cover)
  • Page 75 LC37/LC37F III. ASSEMBLED P.W.B. ADJUSTMENT Table 1. I C Parameter List 1st Page Adjustment Adjustment Item Address Adjustment Initial Data Adjustment Mode OSD Range (HEX) Value (HEX) (HEX) SUB BRIGHT Brightness 00.~FF D15~D8 White Balance Mode (Controlled by sub mi-com) R DRIVE (HIGH) R~SUB~GAIN (CXD3536) High...
  • Page 76 LC37/LC37F III. ASSEMBLED P.W.B. ADJUSTMENT Table 1. I C Parameter List 1st Page Adjustment Adjustment Item Address Adjustment Initial Data Adjustment Mode OSD Range (HEX) Value (HEX) (HEX) (Controlled by sub mi-com) HP (CXD3536) 000~7FF 027 * D18~D8 VP (CXD3536) 00~FF 05 * D7~D0...
  • Page 77 LC37/LC37F III. ASSEMBLED P.W.B. ADJUSTMENT Table 1. I C Parameter List CCD/V CHIP/VIDEO ID Adjustment Adjustment Item Address Adjustment Initial Adjustment Mode OSD Range Data Value (HEX) (HEX) (HEX) V CHIP/ CCD SAMPRING V Chip Adjust 00~FF Refer to “V Chip Spec. POLLING 00~FF START...
  • Page 78 LC37/LC37F III. ASSEMBLED P.W.B. ADJUSTMENT Table 1. I C Parameter List Device Page:LCD DRIVE Adjustment Adjustment Item Address Adjustment Initial Adjustment Mode OSD Range Data Value (HEX) (HEX) (HEX) LCD DRIVE (Sub mi-com) SIG-C-R SIG-C-R (CXA7005-Red/01h/D5-D0) 00~3F 1Dh * 00:SIG-C voltage 6.5V~3Fh: 8.7V D21~D16 SIG-C-G SIG-C-R (CXA7005-Green/01h/D5-D0)
  • Page 79 LC37/LC37F III. ASSEMBLED P.W.B. ADJUSTMENT Table 1. I C Parameter List Device Page: UPD 64084 Adjustment Adjustment Item Address Adjustment Initial Adjustment Mode OSD Range Data Value (HEX) (HEX) (HEX) UPD64084 (B9H) Read Mode SYNCDET Sync Detection 00~01 0: Sync, 1: No Sync F-STD Frame Sync Nonstandard Detection 00~01...
  • Page 80 LC37/LC37F III. ASSEMBLED P.W.B. ADJUSTMENT Table 1. I C Parameter List Device Page: TA1383 Adjustment Adjustment Item Address Adjustment Initial Adjustment Mode OSD Range Data Value (HEX) (HEX) (HEX) TA1383-Main/Sub (D8H/DAH) Write Mode CONTM1 Contrast Control Main TA1383 ANT A, B 00~1F 00: MIN (-3dB) D7~D3...
  • Page 81 LC37/LC37F III. ASSEMBLED P.W.B. ADJUSTMENT Table 1. I C Parameter List Device Page: NJWxxxx Adjustment Adjustment Item Address Adjustment Initial Adjustment Mode OSD Range Data Value (HEX) (HEX) (HEX) NJW1160/61/xx/xx 82H BBE-LO BBE Low Frequency Effect Level 00~0F 0dB~15dB D7~D4 BBE-HI BBE High Frequency Effect Level 00~0F...
  • Page 82 LC37/LC37F III. ASSEMBLED P.W.B. ADJUSTMENT Table 1. I C Parameter List Device Page: FLEX Adjustment Adjustment Item Address Adjustment Initial Adjustment Mode OSD Range Data Value (HEX) (HEX) (HEX) CNR1 Color Noise Reduction 00~07 Input Level D15~D13 CNR2 NTSC CNR4 480i CNR5 480p...
  • Page 83 LC37/LC37F III. ASSEMBLED P.W.B. ADJUSTMENT Table 1. I C Parameter List LCD ADJUST Mode Adjustment Adjustment Item Address Adjustment Initial Adjustment Mode OSD Range Data Value (HEX) (HEX) (HEX) GHOST (Sub mi-com) SHP (CXD3536/1015h/D5-D0) 00~3F 2ch * 00~3F D21-D16 GHOST-R R-GC-ATT[7:0] (CXD3536) 00~FF 00 *...
  • Page 84 LC37/LC37F III. ASSEMBLED P.W.B. ADJUSTMENT Table 1. I C Parameter List LCD ADJUST Mode Adjustment Adjustment Item Address Adjustment Initial Adjustment Mode OSD Range Data Value (HEX) (HEX) (HEX) C.UNIF (MIN) (Sub mi-com) POINT No C.UNIF No. 01~19 D05-D00 R-UNIF(CXD3536/4000h~) 00~FF D15-D08 G- UNIF (CXD3536/5000h~)
  • Page 85 LC37/LC37F III. ASSEMBLED P.W.B. ADJUSTMENT Table 1. I C Parameter List No. EEP LABEL Adjustment Item Mode Range Initial 000H FLAMINTV Auto Signal Level Adjustment Minimum Value TV 0~255 0~FFH 001H FLAMAXTV Auto Signal Level Adjustment Maximum 0~255 0~FFH Value 002H ASBY Y Brightness Auto Adjustment Value...
  • Page 86 LC37/LC37F III. ASSEMBLED P.W.B. ADJUSTMENT Table 1. I C Parameter List No. EEP LABEL Adjustment Item Mode Range Initial 02DH DSHPHS0 Horizontal Sync Horizontal Phase 480i 0~255 0~FFH 02EH DSHPHS1 (DVI Sub) 480p 0~255 0~FFH 02FH DSHPHS2 1080i 0~255 0~FFH 030H DSHPHS3 720p...
  • Page 87 LC37/LC37F III. ASSEMBLED P.W.B. ADJUSTMENT Table 1. I C Parameter List No. EEP LABEL Adjustment Item Mode Range Initial 05AH VECOR0~P0 Not Use ANT/Multi 0~15 0~FH 05BH VECOR1~P0 Video 0~15 0~FH 05CH VECOR2~P0 480i 0~15 0~FH 05DH VECOR3~P0 480p 0~15 0~FH 05EH VECOR4~P0...
  • Page 88 LC37/LC37F III. ASSEMBLED P.W.B. ADJUSTMENT Table 1. I C Parameter List No. EEP LABEL Adjustment Item Mode Range Initial ANT/Video/480i- ANT/Video/480i 135 087H MYNRG0 Main Y Frame Noise Reduction Input 0~7H ANT/Video/480i- 480p/1080i/720p Gain (SPLIT) 480p/1080i/720p- ANT/Video/480i 136 088H MYNRG1 0~7H 480p/1080i/720p- 480p/1080i/720p...
  • Page 89 LC37/LC37F III. ASSEMBLED P.W.B. ADJUSTMENT Table 1. I C Parameter List No. EEP LABEL Adjustment Item Mode Range Initial 179 0B3H YHEG0~P0 Not Use (for PDP) ANT/Video/480i/Multi 0~15 0~FH 180 0B4H YHEG1~P0 480p 0~15 0~FH 181 0B5H YHEG2~P0 1080i/720p 0~15 0~FH 182 0B6H YHDSBG0~P0...
  • Page 90 LC37/LC37F III. ASSEMBLED P.W.B. ADJUSTMENT Table 1. I C Parameter List No. EEP LABEL Adjustment Item Mode Range Initial 228 0E4H YHDSBC0~P1 Not Use (for PDP) ANT/Video/480i/Multi 0~7H 229 0E5H YHDSBC1~P1 480p/1080i/720p 0~7H 230 0E6H YHECLP0~P1 Not Use (for PDP) ANT/Video/480i/Multi 0~1H 231 0E7H...
  • Page 91 LC37/LC37F III. ASSEMBLED P.W.B. ADJUSTMENT Table 1. I C Parameter List No. EEP LABEL Adjustment Item Mode Range Initial 279 117H YCOR0~P2 Y/G Coring Amplitude ANT/Multi 0~7H 280 118H YCOR1~P2 Video 0~7H 281 119H YCOR2~P2 480i 0~7H 282 11AH YCOR3~P2 480p 0~7H 283 11BH...
  • Page 92 LC37/LC37F III. ASSEMBLED P.W.B. ADJUSTMENT Table 1. I C Parameter List No. EEP LABEL Adjustment Item Mode Range Initial 321 141H TC23CSL 2-3 Pull down C Threshold ANT/Video/480i/1080i 0~255 0~FFH 322 142H TC23MSL0 2-3 Pull down Moving Area Threshold ANT/Video/480i 0~255 0~FFH 323 143H...
  • Page 93 LC37/LC37F III. ASSEMBLED P.W.B. ADJUSTMENT Table 1. I C Parameter List No. EEP LABEL Adjustment Item Mode Range Initial 363 16BH CME1GIN C Motion Detection Edge 1 Gain ANT/Video/480i/1080i 0~7H Selection 364 16CH CME1COR C Motion Detection Edge 1 Coring ANT/Video/480i/1080i 0~31 0~1FH...
  • Page 94 LC37/LC37F III. ASSEMBLED P.W.B. ADJUSTMENT Table 1. I C Parameter List No. EEP LABEL Adjustment Item Mode Range Initial 403 193H HUCENMC1 CbCr Hue Center 1 (MSB), (LSB) (CbCr) 0~3H 404 194H HUCENLC1 0~1023 0~3FFH 142H 405 195H HUWC1 CbCr Hue Width 1 (CbCr) 0~255 0~FFH...
  • Page 95 LC37/LC37F III. ASSEMBLED P.W.B. ADJUSTMENT Table 1. I C Parameter List No. EEP LABEL Adjustment Item Mode Range Initial 443 1BBH SACENMC1 CbCr Saturation Hue Center 1 (CbCr) 0~3H (MSB), (LSB) 444 1BCH SACENLC1 0~3FFH 143H 0~1023 445 1BDH SAWC1 CbCr Saturation Hue Width 1 (CbCr) 0~255...
  • Page 96 LC37/LC37F III. ASSEMBLED P.W.B. ADJUSTMENT Table 1. I C Parameter List No. EEP LABEL Adjustment Item Mode Range Initial 483 1E3H HUCENMP1 PbPr Hue Center 1 (PbPr) 0~3H (MSB), (LSB) 484 1E4H HUCENLP1 0~3FFH 366H 0~1023 485 1E5H HUWP1 PbPr Hue Width 1 (PbPr) 0~255 0~FFH...
  • Page 97 LC37/LC37F III. ASSEMBLED P.W.B. ADJUSTMENT Table 1. I C Parameter List No. EEP LABEL Adjustment Item Mode Range Initial 518 206H SACENMP0 PbPr Saturation Hue Center 0 (PbPr) 0~3H (MSB), (LSB) 519 207H SACENLP0 0~3FFH 0~1023 520 208H SAWP0 PbPr Saturation Hue Width 0 (PbPr) 0~255 0~FFH...
  • Page 98 LC37/LC37F III. ASSEMBLED P.W.B. ADJUSTMENT Table 1. I C Parameter List No. EEP LABEL Adjustment Item Mode Range Initial 559 22FH FRMLEV0 Frame Brightness Single 0~255 0~FFH 560 230H FRMLEV1 Multi 0~255 0~FFH 561 231H FRMLEV2 Not Use 0~255 0~FFH 562 232H FHMINMSB Not Use...
  • Page 99 LC37/LC37F III. ASSEMBLED P.W.B. ADJUSTMENT Table 1. I C Parameter List No. EEP LABEL Adjustment Item Mode Range Initial 603 25BH BSSP Black Changing Speed 0~63 0~4FH 0: fast, 63:late 604 25CH BSSTEP Black Stretch Adjustment Step 0~3H 0:direct 1~3:1~3step 605 25DH BSSTART Black Stretch Start Level...
  • Page 100 LC37/LC37F III. ASSEMBLED P.W.B. ADJUSTMENT Table 1. I C Parameter List No. EEP LABEL Adjustment Item Mode Range Initial 644 284H DGCMSB Dynamic Contrast Gain Control Offset 0~255 0~FFH (MSB) 645 285H DGCLSB Dynamic Contrast Gain Control Offset 0~255 0~FFH (LSB) 646 286H DCCOLST...
  • Page 101 LC37/LC37F III. ASSEMBLED P.W.B. ADJUSTMENT Table 1. I C Parameter List No. EEP LABEL Adjustment Item Mode Range Initial 677 2A5H GM18 Gamma 8 Adjustment (Normal) 0~128 0~FFH 678 2A6H GM17 Gamma 7 Adjustment (Normal) 0~255 0~FFH 679 2A7H GM16 Gamma 6 Adjustment (Normal) 0~255 0~FFH...
  • Page 102 LC37/LC37F III. ASSEMBLED P.W.B. ADJUSTMENT Table 2. SETTING FOR DELIVERY (FACTORY RESET) Function Initial Data/Condition Condition NTSC Channel (Main, Sub) 03Channel ATSC Channel None (3-1ch) On DTV Input Mode Ant A Sleep Timer Not Registered Favorite Channels Not Registered Multi Window Mode PIP/POP/SPLIT Main;...
  • Page 103 LC37/LC37F III. ASSEMBLED P.W.B. ADJUSTMENT Table 2. SETTING FOR DELIVERY (FACTORY RESET) Function Initial Data/Condition Condition Audio Treble Bass Balance Sound Enhancement (SRS, BBE, SRS&BBE, Off) Audio Source Stereo (Stereo/Mono/SAP) Internal Speakers (On, Off Only) Internal Speakers (On/Off/TV AS Center) Auto Noise Cancel Perfect Volume Loudness...
  • Page 104 LC37/LC37F III. ASSEMBLED P.W.B. ADJUSTMENT Table 2. SETTING FOR DELIVERY (FACTORY RESET) Function Initial Data/Condition Condition Locks Change Access Code “0000”,”7777” Engage Lock Set Channel Lock Not Registered Set Input Lock Not Registered Set Front Panel Lock Not Registered TV Time Lock Start/Stop Time Not Registered Repeat...
  • Page 105 LC37/LC37F III. ASSEMBLED P.W.B. ADJUSTMENT Table 2. SETTING FOR DELIVERY (FACTORY RESET) Function Initial Data/Condition Condition Setup About Your TV - (None) Set Timer Recording Not Registered On DTV (Record1/2/3/4) Set Monitor Out Monitor On DTV (Monitor/TV Out) Upgrades - (None) On DTV Set Stand-by Mode On DTV...

  • Page 106: Power P.w.b

    LC37/LC37F IV. POWER P.W.B. Back Cover Side PPF2 PPF3 D928 +10V (Green) D911 Main (Red) I903 D932 +5 5V(1) (Green) E905 +16 5V E904 +10V I901 E903 D931 +25V +15 5V (Green) F904 FUSE D930 E901 +5 5V(2) Audio (Green) D933 U901 Audio...

  • Page 107: Power Supply

    T h e r e s h o u l d n o t b e a n y i m p e r f e c t r a s t e r . Measuring conditions Supply AC1088V from AC stabilizing power supply Receive HITACHI circle pattern signal. Contrast and Brightness: Factory Reset condition BACK TO ADJUSTMENTS...

  • Page 108: Portection Circuit Blcok Diagram

    1.2 Protection Circuit Block Daigram (Power Supply) LIVE COLD AC Plug D 913 : SBY + 5 V Power uCOM: Module AC Input SBY+5V U901 Fuse D933: Audio Rectifier D937:<5V Audio: F901: 6A Protector Rectifier D902 +29.0V E901:10K +29.0V:D922 Line Filter Varistor D938 : <5V Rectifier...

  • Page 109: Troubleshooting Flow Charts

    LC37/LC37F BACK TO ADJUSTMENTS...

  • Page 110: Dc Voltage

    LC37/LC37F VI. DC VOLTAGES Signal 1 Symbol Pin No. V(DC) Pin No. V(DC) Pin No. V(DC) Pin No. V(DC) 0.18 1.63 3.20 2.98 1.32 0.03 3.09 2.20 3.26 4.61 3.08 3.28 3.26 4.68 2.80 3.30 0.00 4.59 3.08 0.00 3.26 4.51 0.03 3.06...
  • Page 111 LC37/LC37F VI. DC VOLTAGES Signal 1 Symbol Pin No. Pin No. Symbol Pin No. V(DC) V(DC) V(DC) 2.10 0.00 5.49 2.43 0.00 2.10 I009 4.64 2.12 4.51 1.79 0.01 0.00 U301 4.98 0.05 Symbol Pin No. Pin No. V(DC) V(DC) 0.00 0.05 32.59...
  • Page 112 LC37/LC37F VI. DC VOLTAGES Signal 2 Symbol Pin No. Pin No. Symbol Pin No. V(DC) V(DC) V(DC) I402 I403 Symbol Pin No. Symbol Pin No. V(DC) V(DC) 10.0 I404 I405 10.0 Symbol Pin No. Pin No. V(DC) V(DC) I453 Symbol Pin No.
  • Page 113 LC37/LC37F VI. DC VOLTAGES Signal 3 Symbol Pin No. Symbol Pin No. Pin No. V(DC) V(DC) V(DC) 10.0 I504 10.0 Symbol Pin No. Pin No. V(DC) V(DC) IA01 IA02 Symbol Pin No. Pin No. V(DC) V(DC) IC01 Symbol Pin No. Pin No.
  • Page 114 LC37/LC37F VI. DC VOLTAGES Signal 3 Q524 -0.2 QA56 QE20 Q527 10.0 QA57 QE21 Q528 QA58 QE22 Q529 QE01 QE24 Q561 QE02 QE25 Q562 QE03 QE26 Q563 QE04 QE27 Q564 QE05 QE28 QA01 QE06 QE29 QA02 QE07 QE30 QA03 QE08 QE31 QA04 QE09...
  • Page 115 LC37/LC37F VI. DC VOLTAGES Terminal 1 Symbol Pin No. Pin No. Symbol Pin No. Pin No. V(DC) V(DC) V(DC) V(DC) IV01 IV03 Symbol Pin No. Pin No. Symbol Pin No. Pin No. V(DC) V(DC) V(DC) V(DC) IV02 IV04 Symbol Pin No. Pin No.
  • Page 116 LC37/LC37F VI. DC VOLTAGES Terminal 1 QV05 QV15 QV29 QV06 QV16 QV30 QV07 QV17 QV31 QV08 QV18 QV32 QV09 QV19 QV33 QV10 QV20 QV34 QV11 QV21 QV35 QV12 QV22 QV36 QV14 QV23 QV37 QV24 QV38 QV25 QV39 QV26 QV41 QXA0 QXA1...
  • Page 117 LC37/LC37F VI. DC VOLTAGES Terminal 2 Symbol Pin No. Pin No. Pin No. Pin No. Pin No. V(DC) V(DC) V(DC) V(DC) V(DC) IY01 Symbol Pin No. V(DC) IY02 Symbol Pin No. Pin No. Symbol Pin No. Pin No. V(DC) V(DC) V(DC) V(DC) IY03...
  • Page 118 LC37/LC37F VI. DC VOLTAGES Terminal 2 QY01 QY19 QY03 QY20 QY04 QY21 QY05 QY22 QY06 QY23 QY09 QY24 QY10 QY26 QY11 QY31 QY12 QY32 QY13 QY14 QY15 QY16 QY17 QY18...

  • Page 119: Power Supply

    LC37/LC37F VI. DC VOLTAGES Power Supply Symbol Pin No. Symbol Pin No. V(DC) V(DC) 99.2 I902 102.4 I901 296.9 19.0 Symbol Pin No. V(DC) Symbol Pin No. V(DC) 14.1 I907 11.8 I903 13.1 16.6 19.0 Symbol Pin No. V(DC) Symbol Pin No.
  • Page 120 LC37/LC37F VI. DC VOLTAGES Control Symbol Pin No. 2.91 V(DC) 1.60 QM03 8.86 HM01 4.98 2.26 0.01 2.99 QM04 8.86 Symbol Pin No. 2.35 V(DC) 0.01 0.68 4.96 QM06 0.08 -0.30 0.01 3.25 0.08 QM07 4.98 Symbol Pin No. V(DC) 0.01 2.47 0.02...
  • Page 121 LC37/LC37F VI. DC VOLTAGES Audio Symbol Pin No. Pin No. Symbol Pin No. Pin No. V(DC) V(DC) V(DC) V(DC) 1.55 14.28 1.55 14.86 0.01 5.04 0.01 5.04 IAA1 0.01 31.56 IAA2 0.01 31.55 0.01 0.00 0.01 0.00 1.54 4.18 1.54 4.24 10.64 14.18...

  • Page 122: Waveforms

    LC37/LC37F VII. WAVEFORMS AT EACH SECTION Numbers inside circle correspond to locations shown in the circuit diagram. U302 P18 U302 P05 U302 P04 U301 P19 U301 P18 U301 P05 BACK TO ADJUSTMENTS...
  • Page 123 LC37/LC37F VII. WAVEFORMS AT EACH SECTION Numbers inside circle correspond to locations shown in the circuit diagram. U301 P04 I001 P23 I001 P28 I001 P29 I001 P30 PST1 P50...
  • Page 124 LC37/LC37F VII. WAVEFORMS AT EACH SECTION Numbers inside circle correspond to locations shown in the circuit diagram. PST1 P45 PST1 P41 PST1 P39 PST1 P19 PST1 P18 PST2 P13...
  • Page 125 LC37/LC37F VII. WAVEFORMS AT EACH SECTION Numbers inside circle correspond to locations shown in the circuit diagram. PST2 P12 IE01 P02 IV11 P15 IV11 P14 IY04 P02 IY04 P03...
  • Page 126 LC37/LC37F VII. WAVEFORMS AT EACH SECTION Numbers inside circle correspond to locations shown in the circuit diagram. IY04 P05 IY04 P13 IY04 P14 IY04 P15 IY04 P15 IY04 P24...
  • Page 127 LC37/LC37F VII. WAVEFORMS AT EACH SECTION Numbers inside circle correspond to locations shown in the circuit diagram. IY03 P13 IY03 P14 IY03 P02 IY03 P24...

  • Page 128: Replacement Parts List

    LC37/LC37F VIII. REPLACEMENT PARTS LIST PRODUCT SERVICE NOTE: Components marked with a have special characteristics important to safety. Before replacing any of these components, read carefully, the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing.
  • Page 129 LC37/LC37F PRODUCT SERVICE NOTE: Components marked with a have special characteristics important to safety. Before replacing any of these components, read carefully, the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. SYMBOL PART PART...
  • Page 130 LC37/LC37F PRODUCT SERVICE NOTE: Components marked with a have special characteristics important to safety. Before replacing any of these components, read carefully, the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. SYMBOL PART PART...
  • Page 131 LC37/LC37F PRODUCT SERVICE NOTE: Components marked with a have special characteristics important to safety. Before replacing any of these components, read carefully, the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. SYMBOL PART PART...
  • Page 132 LC37/LC37F PRODUCT SERVICE NOTE: Components marked with a have special characteristics important to safety. Before replacing any of these components, read carefully, the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. SYMBOL PART PART...
  • Page 133 LC37/LC37F PRODUCT SERVICE NOTE: Components marked with a have special characteristics important to safety. Before replacing any of these components, read carefully, the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. SYMBOL PART PART...
  • Page 134 LC37/LC37F PRODUCT SERVICE NOTE: Components marked with a have special characteristics important to safety. Before replacing any of these components, read carefully, the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. SYMBOL PART PART...
  • Page 135 LC37/LC37F PRODUCT SERVICE NOTE: Components marked with a have special characteristics important to safety. Before replacing any of these components, read carefully, the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. SYMBOL PART PART...
  • Page 136 LC37/LC37F PRODUCT SERVICE NOTE: Components marked with a have special characteristics important to safety. Before replacing any of these components, read carefully, the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. SYMBOL PART PART...
  • Page 137 LC37/LC37F PRODUCT SERVICE NOTE: Components marked with a have special characteristics important to safety. Before replacing any of these components, read carefully, the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. SYMBOL PART PART...
  • Page 138 LC37/LC37F PRODUCT SERVICE NOTE: Components marked with a have special characteristics important to safety. Before replacing any of these components, read carefully, the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. SYMBOL PART PART...
  • Page 139 LC37/LC37F PRODUCT SERVICE NOTE: Components marked with a have special characteristics important to safety. Before replacing any of these components, read carefully, the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. SYMBOL PART PART...
  • Page 140 LC37/LC37F PRODUCT SERVICE NOTE: Components marked with a have special characteristics important to safety. Before replacing any of these components, read carefully, the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. SYMBOL PART PART...
  • Page 141 LC37/LC37F PRODUCT SERVICE NOTE: Components marked with a have special characteristics important to safety. Before replacing any of these components, read carefully, the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. SYMBOL PART PART...
  • Page 142 LC37/LC37F PRODUCT SERVICE NOTE: Components marked with a have special characteristics important to safety. Before replacing any of these components, read carefully, the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. SYMBOL PART PART...
  • Page 143 LC37/LC37F PRODUCT SERVICE NOTE: Components marked with a have special characteristics important to safety. Before replacing any of these components, read carefully, the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. SYMBOL PART PART...
  • Page 144 LC37/LC37F PRODUCT SERVICE NOTE: Components marked with a have special characteristics important to safety. Before replacing any of these components, read carefully, the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. SYMBOL PART PART...
  • Page 145 LC37/LC37F PRODUCT SERVICE NOTE: Components marked with a have special characteristics important to safety. Before replacing any of these components, read carefully, the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. SYMBOL PART PART...
  • Page 146 LC37/LC37F PRODUCT SERVICE NOTE: Components marked with a have special characteristics important to safety. Before replacing any of these components, read carefully, the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. SYMBOL PART PART...
  • Page 147 LC37/LC37F PRODUCT SERVICE NOTE: Components marked with a have special characteristics important to safety. Before replacing any of these components, read carefully, the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. SYMBOL PART PART...
  • Page 148 LC37/LC37F PRODUCT SERVICE NOTE: Components marked with a have special characteristics important to safety. Before replacing any of these components, read carefully, the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. SYMBOL PART PART...
  • Page 149 LC37/LC37F PRODUCT SERVICE NOTE: Components marked with a have special characteristics important to safety. Before replacing any of these components, read carefully, the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. SYMBOL PART PART...
  • Page 150 LC37/LC37F PRODUCT SERVICE NOTE: Components marked with a have special characteristics important to safety. Before replacing any of these components, read carefully, the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. SYMBOL PART PART...
  • Page 151 LC37/LC37F PRODUCT SERVICE NOTE: Components marked with a have special characteristics important to safety. Before replacing any of these components, read carefully, the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. SYMBOL PART PART...

  • Page 153: Exploded View

    LC37/LC37F EXPLODED VIEW 50V500 Drawing 2 Some parts may appear different than those shown in the exploded view. When ordering, refer to the replacement parts NOTES: list for the correct part number. The circled numbers correspond to the parts list shown on page 142.
  • Page 154 LC37/LC37F EXPLODED VIEW 50V500 Drawing 3 Some parts may appear different than those shown in the exploded view. When ordering, refer to the replacement parts NOTES: list for the correct part number. The circled numbers correspond to the parts list shown on page 142.
  • Page 155 LC37/LC37F EXPLODED VIEW 50V500 Drawing 4 Some parts may appear different than those shown in the exploded view. When ordering, refer to the replacement parts NOTES: list for the correct part number. The circled numbers correspond to the parts list shown on page 142.

  • Page 156: Exploded View Parts List

    LC37/LC37F EXPLODED VIEW PARTS LIST 50V500 EXPLODED VIEW PARTS LIST PART No DESCRIPTION NT03101 50V500 FRAME ASSY JT24171 CONTROL PWB ASSY PC05731 POWER BUTTON V500 KQ03291 LED LENS V500 KR02911 50V SCREEN ASSY NA66781 SCR FIX MTL H 50V500 NA66791 SCR FIX MTL V 50V500 NJ08042 SP BAFFLE L V500...
  • Page 158 LC37/LC37F EXPLODED VIEW 60V500A Drawing 2 Some parts may appear different than those shown in the exploded view. When ordering, refer to the replacement parts NOTES: list for the correct part number. The circled numbers correspond to the parts list shown on page 147.
  • Page 159 LC37/LC37F EXPLODED VIEW 60V500A Drawing 3 Some parts may appear different than those shown in the exploded view. When ordering, refer to the replacement parts NOTES: list for the correct part number. The circled numbers correspond to the parts list shown on page 147.
  • Page 160 LC37/LC37F EXPLODED VIEW 60V500A Drawing 1 Some parts may appear different than those shown in the exploded view. When ordering, refer to the replacement parts NOTES: list for the correct part number. The circled numbers correspond to the parts list shown on page 147.
  • Page 161 LC37/LC37F EXPLODED VIEW PARTS LIST 60V500A EXPLODED VIEW PARTS LIST PART No DESCRIPTION NT03104 60V500 FRAME ASSY JT24174 CONTROL PWB ASSY PC05731 POWER BUTTON V500 KQ03291 LED LENS V500 KR02912 60V SCREEN ASSY NA66782 SCR FIX MTL H 60V500 NA66792 SCR FIX MTL V 60V500 NJ08042 SP BAFFLE L V500...

  • Page 162: Printed Circuit Boards

    LC3X PRINTED CIRCUIT BOARD Control CS BACK TO ADJUSTMENTS...
  • Page 163 LC3X PRINTED CIRCUIT BOARD Control SS...
  • Page 164 LC3X PRINTED CIRCUIT BOARD Drive CS...
  • Page 165 LC3X PRINTED CIRCUIT BOARD Drive SS...
  • Page 166 LC3X PRINTED CIRCUIT BOARD DVI CS...
  • Page 167 LC3X PRINTED CIRCUIT BOARD DVI SS...
  • Page 168 LC3X PRINTED CIRCUIT BOARD Power CS...
  • Page 169 LC3X PRINTED CIRCUIT BOARD Power SS...
  • Page 170 LC3X PRINTED CIRCUIT BOARD Signal CS...
  • Page 171 LC3X PRINTED CIRCUIT BOARD Signal SS...
  • Page 172 LC3X PRINTED CIRCUIT BOARD Terminal CS...
  • Page 173 LC3X PRINTED CIRCUIT BOARD Terminal SS...

  • Page 174: Connection Diagram

    LC3X CONNCETION DIAGRAM...

  • Page 175: Block Diagram

    LC3X BLOCK DIAGRAM...

  • Page 176: Basic Circuit Schematic Diagram

    LC3X BASIC CIRCUIT DIAGRAM PRODUCT SAFETY NOTE: Components marked with a and shaded have special characteristics important to Signal 1 of 3 safety. Before replacing any of these components, read carefully the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. All DC voltage to be measured with a tester (100k /V).
  • Page 177 LC3X BASIC CIRCUIT DIAGRAM PRODUCT SAFETY NOTE: Components marked with a and shaded have special characteristics important to Signal 2 of 3 safety. Before replacing any of these components, read carefully the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. All DC voltage to be measured with a tester (100k /V).
  • Page 178 LC3X BASIC CIRCUIT DIAGRAM PRODUCT SAFETY NOTE: Components marked with a and shaded have special characteristics important to Signal 3 of 3 safety. Before replacing any of these components, read carefully the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. All DC voltage to be measured with a tester (100k /V).
  • Page 179 LC3X BASIC CIRCUIT DIAGRAM PRODUCT SAFETY NOTE: Components marked with a and shaded have special characteristics important to Terminal 1 of 2 safety. Before replacing any of these components, read carefully the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. All DC voltage to be measured with a tester (100k /V).
  • Page 180 LC3X BASIC CIRCUIT DIAGRAM PRODUCT SAFETY NOTE: Components marked with a and shaded have special characteristics important to Terminal 2 of 2 safety. Before replacing any of these components, read carefully the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. All DC voltage to be measured with a tester (100k /V).
  • Page 181 LC3X BASIC CIRCUIT DIAGRAM PRODUCT SAFETY NOTE: Components marked with a and shaded have special characteristics important to Control safety. Before replacing any of these components, read carefully the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. All DC voltage to be measured with a tester (100k /V).
  • Page 182 LC3X BASIC CIRCUIT DIAGRAM PRODUCT SAFETY NOTE: Components marked with a and shaded have special characteristics important to Audio/PJIG/Door safety. Before replacing any of these components, read carefully the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. All DC voltage to be measured with a tester (100k /V).
  • Page 183 LC3X BASIC CIRCUIT DIAGRAM PRODUCT SAFETY NOTE: Components marked with a and shaded have special characteristics important to Drive 1 of 4 safety. Before replacing any of these components, read carefully the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. All DC voltage to be measured with a tester (100k /V).
  • Page 184 LC3X BASIC CIRCUIT DIAGRAM PRODUCT SAFETY NOTE: Components marked with a and shaded have special characteristics important to Drive 2 of 4 safety. Before replacing any of these components, read carefully the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. All DC voltage to be measured with a tester (100k /V).
  • Page 185 LC3X BASIC CIRCUIT DIAGRAM PRODUCT SAFETY NOTE: Components marked with a and shaded have special characteristics important to Drive 3 of 4 safety. Before replacing any of these components, read carefully the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. All DC voltage to be measured with a tester (100k /V).
  • Page 186 LC3X BASIC CIRCUIT DIAGRAM PRODUCT SAFETY NOTE: Components marked with a and shaded have special characteristics important to Drive 4 of 4 safety. Before replacing any of these components, read carefully the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. All DC voltage to be measured with a tester (100k /V).
  • Page 187 LC3X BASIC CIRCUIT DIAGRAM PRODUCT SAFETY NOTE: Components marked with a and shaded have special characteristics important to safety. Before replacing any of these components, read carefully the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. All DC voltage to be measured with a tester (100k /V).
  • Page 188 LC3X BASIC CIRCUIT DIAGRAM PRODUCT SAFETY NOTE: Components marked with a and shaded have special characteristics important to Power Supply safety. Before replacing any of these components, read carefully the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. All DC voltage to be measured with a tester (100k /V).

  • Page 189: Final Wiring Diagram

    LC3X FINAL WIRING 1 of 4 BACK TO ADJUSTMENTS...
  • Page 190 LC3X FINAL WIRING 2 of 4...
  • Page 191 LC3X FINAL WIRING 3 of 4...
  • Page 192 LC3X FINAL WIRING 4 of 4...

  • Page 193: Major Ics & Units

    LC37/LC37F 2.4 ICs and UNITs Symb DESCRIPTION FUNCITION 1 I601 CK38991U M30624FGPFP SUB-MICOM DRIVE 2 I602 CK35894R CAT24WC32J1 DRIVE 3 I603 CK37051R BD4729G DRIVE 4 I604 CK01872R BU4053BCFV-E2 DRIVE 5 I605 CA01301R TRS.CHIP NDC7002N DRIVE 6 I701 CK37121R THC63LVDF84B-R LVDS RECEIVER DRIVE 7 I704 CK37193R SI-3033LSA-TL...

  • Page 194: Video Switch

    LC37/LC37F Symb DESCRIPTION FUNCITION 46 IC01 CK01872R BU4053BCFV-E2 SIGNAL 47 IC02 CK31041R TA1287F SIGNAL 48 IE01 CK31041R TA1287F SIGNAL 49 IE02 CK38102R NJM2584AM(TE1) VIDEO SWITCH SIGNAL 50 U301 HC00512 F/E ENGE6106DR MAIN TUNER SIGNAL 51 U302 HC00464 FE-ENG36626G SUB TUNER SIGNAL 52 IV01 CK30941U CXA2069Q...

  • Page 195: Optical Engine Removal Procedure

    UX22202D* Optical Engine Assy, (includes Drive and FC4 PWB) X480266 Audio PWB, (includes Main and Sub PWB) UE22343 LC37-E Chassis 50V500A (same as 50VX500 except screen/cabinet) HA01231 Lamp Power Unit UX21511 Lamp Assy JT24143 Signal PWB Assy, (includes Terminal and DVI PWB)
  • Page 196 Hitachi LCD Rear Projection TV Optical Engine Removal Procedure...
  • Page 197 ENGINE REMOVAL PROCEDURE (CONTINUED) Pop off front grill. Remove 4 screws holding front plastic piece w/ power button.
  • Page 198 ENGINE REMOVAL PROCEDURE (CONTINUED) (Left side close up) (Right side close up)
  • Page 199 ENGINE REMOVAL PROCEDURE (CONTINUED) Remove 4 screws holding top cabinet front. (Left side close up)
  • Page 200 ENGINE REMOVAL PROCEDURE (CONTINUED) (Right side close up) Remove screws holding lower rear cabinet.
  • Page 201 ENGINE REMOVAL PROCEDURE (CONTINUED) Remove screws holding upper rear cabinet. Remove 2 screws holding right subwoofer.
  • Page 202 ENGINE REMOVAL PROCEDURE (CONTINUED) Pull out subwoofer as shown, to access the upper cabinet wires. Disconnect all the wires...
  • Page 203 ENGINE REMOVAL PROCEDURE (CONTINUED) Now lift the top straight up. (2 person lift!) Remove this bracket...
  • Page 204 ENGINE REMOVAL PROCEDURE (CONTINUED) Bracket removed Next, remove the Ballast Assy...
  • Page 205 ENGINE REMOVAL PROCEDURE (CONTINUED) Remove Lamp Switch PWB Remove Lamp Power Connector retaining bracket, then Lamp Power Connector...
  • Page 206 ENGINE REMOVAL PROCEDURE (CONTINUED) Remove Fan Exhaust Housing (back screw is hidden in this view) Another view of Fan Exhaust housing, showing back screw...
  • Page 207 ENGINE REMOVAL PROCEDURE (CONTINUED) Remove the 5 screws holding down the Engine Assy. Use a stubby #2 Philips head as needed...
  • Page 208 ENGINE REMOVAL PROCEDURE (CONTINUED) Remove upper bracket, so Engine assy can be pulled out the back. Install new Engine Assy, reassemble in reverse order of disassembly...

This manual is also suitable for:

50vx50060vx50050v50060v500a

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