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Related Manuals for HANNspree 1E03-37GT
Summary of Contents for HANNspree 1E03-37GT
- Page 1 GT02-32E1 / GT03-37E1 Liquid Crystal Display Television SERVICE MANUAL...
- Page 2 Preface All rights reserved. No part of this publication may be reproduced, transmitted, transcribed, stored in a retrieval system or translated into any language in any form or by any means, electronic, mechanical, magnetic, optical, chemical, manual, or otherwise, without the prior permission of the company. Disclaimer We make no representations or warranties, either expressed or implied, with respect to the contents of this document, and specifically disclaims any warranties, merchantability or fitness for any particular purpose.
- Page 3 6. Do not place this product on an unstable cart, stand, or table. The television receiver may fall and cause serious injury as well as possibly damaging the product. Use only with a cart or stand recommended by the manufacturer or sold with the product. Wall or shelf mounting should follow manufacturer’s instructions and only use a mounting kit as recommended by the manufacturer.
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Page 4: Table Of Contents
Table of contents Introduction........................1 Specificitions..........................2 Front View...........................3 Rear View.............................4 Block diagram..........................5 Service mode..........................10 Assembly and disassembly procedure...................17 Disassembly..........................17 Reassembly...........................19 Exploded view..........................20 Printed circuit boards......................24 Power circuit board......................24 Main board...........................25 Digital board........................26 Trouble shooting ........................29 Handing and placing methods....................32 Schematic Diagrams.........................33... -
Page 5: Introduction
Introduction This service manual covers the LCD TV and is intended for the use of qualified service engineers only. Service and repair of this product by unqualified persons may result in permanent damage to the product or personal injury and should not be attempted. This manual includes: ．A block diagram of the LCD TV ．An explanation of theory of operation... -
Page 6: Specificitions
Specifications Display I/O ports Active screen size 32,37 inchs SCART Aspect ratio 16:9 YPb input (Y Cb/Pb Cr/Pr) 1 Resolution 32”,37” 1366*768 S-IN input AV input viewing angle 32” 176/176 PC input 37” 176/176 Audio jack input(L/R) PC audio in Tuner Anttena system Number of tuners... -
Page 7: Front View
Front view CHANNEL VOLUME Power Indicator Speaker Speaker CH/ Increases or decreases channel numbers. VOL/ Increases or decreases the volume. MENU Press the button to enter On Screen Display (OSD). SOURCE Switch among the input source . POWER Turn the TV set ON or OFF. -
Page 8: Rear View
Rear view PC AUDIO IN S- IN(vedio) (audio) (red) (white) AV- IN (red) yellow) (white) SCART 1/SCART 2 Connects to the scart output of your A/V device (SCART Cr/Pr Cb/Pb 1 is always RF out, SCART 2 is optional of CVBS out ,RF (red) (blue) (green) -
Page 9: Block Diagram
Block diagram Circuit Description Power Circuit: Switching power Model provide this machine 3 batch power: +12V, +5V and +24V. +5V is Stand-By power, with +12V provide every circuits in main board needed power .+24 is back light power. A.Cold-Opening Mode： •When connect with AC, switching power produce +5V voltage immediately (circuit mark Vsub) and provide U1(PW106B) the needed stand-by voltage to turn on the machine... - Page 11 AV (Video) Input circuit (TV,AV,S,SCART,YUV(YPbPr),PC,HDMI: • AV in/output signal includes: TV,AV,S,SCART,YUV(YPbPr),PC,HDMI • TV:Image composite signal output from tuner and separate into two way:one enter U2 AN15857; Other one be amplified in Q46,Q47 to be the video output of SCART1. • AV :the image signal transmit to U2 AN 15857. •...
- Page 12 AV Input Circuit(Audio): (AV,S,SCART) • Tuner output SIF to U15 MS3410G.This audio signal will be decoded into SAP,STEREO,MONO. • R/L audio signal of AV,S,SCART2,PC switches in U2 AN15857. • R/L audio signal of DVBT(only digital system),YUV,DVI1,DVI2 switches in U9 BU4052 then transmits into U2 AN15857 •...
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Page 14: Service Mode
Service mode An internal settings service menu is provided to allow adjustment of the device by qualified service personal. Improper use of the internal settings service menu may render the device unusable. Refer to the following sections to learn how to operate the service menu. Starting the service mode To start the service mode of operation and view the internal settings menu, do the following: 1.Switch on the LCD TV . - Page 15 Step 2: WHITE BALANCE ADJUSTMENT OF Component— 1. Repeat the above mentioned step 1 to 2 2. Press and to scroll to PE106 FE ADC page 2-3 options 3. Pressand to adjust the Offset Red and Off Blue settings. 4.
- Page 16 OPERATION OF RS232 WRITING (1)RS-232 mounted on the Main Board was the main interface writing new firmware. You can update new firmware to U25 by RS232. (2)Writing firmware need following equipment: 1.RS232 interface built in PC. 2.RS232 cable 3.Pixelworks Flash Upgrader software (3)Connecting method: connecting RS232 interfaces between PC and TV set.
- Page 17 DDC Burning Record 1.Enter DCC Burning Program main screen . 2.Select “Working Model” and select a Model number .Connect Cable to VGA input jack .Turn on the TV set , select then scan serial number we need. Main picture will show “PASS” when burning OK.(Fig.
- Page 18 5.Connect HDMI Cable from PC to TV set , Press computer Mouse right key and enter “SYS- TEM Content” Select “system manager “and rearrange system , screen will show “find a new hard- ware”. After install and screen will show Model name. 7.Revice the HDMI video and audio signal and check A/v function OK.
- Page 19 Function Test A. Control Bottom (control panel and remote control) Check item Describe POWER Press [POWER] to turn ON or OFF LCD TVPress [SLEEP] to set the off timer from 10 to 180 min. R e m o t e c o n t r o l The effective range is 5 meter from LCD sensor.
- Page 20 B. OSD (MENU) Press [menu] to check the OSD and adjust by ▲ ▼◄ ◄KEY Check item Describe Press ▲ ▼ to check the BAR slide :PRESET- BRIGHTNESS - CONTRAST- PICTURE SHARPNESS-COLOUR-TINT- COLOUR TEMP –BACKLIGHT. Press to check the bar or number increases or decreases.PRESET : PERSONAL,STANDARD,VIVID,MILD.
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Page 21: Assembly And Disassembly Procedure
Assembly and disassembly procedure This section covers disassembly and reassembly of LCD TV. Removal of external casing, its individual parts or internal components can render the product dangerous. There can be a risk of electric shock from exposed components even when the device is not connected to a power source. Disassembly 1. - Page 22 8. Unscrew and remove the AC power connector. 9. Unscrew and remove the power circuit board . 10. Unscrew and remove the main circuit board . 11. Unscrew and remove the main base plate. 12. Unscrew and remove the speakers. Main board 13.
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Page 23: Reassembly
Reassembly Reassembly is the reverse of the disassembly procedure. When reassembling the LCD TV, note the following points: ． The LCD panel is delicate and care should be taken to ensure that it is not scratched when removed. Do not expose the LCD panel to dust or sharp objects. ．... -
Page 24: Exploded View
Exploded view: 32”... - Page 26 37”...
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Page 28: Printed Circuit Boards
Printed circuit board Power circuit board Bottom View 37” 32” Top View 37” 32”... -
Page 29: Main Board
Main Board Top View Bottom View... -
Page 33: Trouble Shooting
Trouble Shooting No power •Make sure the LCD is properly connected. •Make sure the AC power cord is properly connected. •Make sure the AC power is ON, DC power button is ON (Green LED). •Plug another electrical device (like a radio) to the power outlet to verify that the outlet is supplying the proper voltage. - Page 34 •The internal temperature of the unit has increased. Remove any objects blocking the vent or clean as necessary. Picture is cut off/with sidebar screen •Is the image positioned correctly? •Are screen mode adjustments such as picture size set correctly? SMPS No voltage output SMPS no Power output Remove the power jack,check Check power PIN 9~11...
- Page 35 No Video image LED light Blue Blue Press RCU Check SMP & circuit Check SMPS +5V & +12V & SORCE key All of Voltage Regulator Circuit Check SMPS Inverter Panem showing image +24V Voltage Blue,black or abnormal picture blue abnormal black Check main board backlight Check PW106 Analog/...
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Page 36: Handing And Placing Methods
Handing and placing Methods 1.When moving the TV set ,do not carry it by only holding the speaker .Besure always carry the TV set by two people and holding the TV set with two hands .One hand on up side of display and other hand on speaker. 2.Do not touch the surface of panel .Only touch the metal frame of the pan- el or the front cover of the TV set .
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