Page 2 - TABLE OF CONTENTS
1 TABLE OF CONTENTS Safety Precautions ................................................................................................................ 2 Product safety servicing guidelines for audio - video products ................................................................ 2 Product safety d...
Page 3 - PRODUCT SAFETY SERVICING GUIDELINES FOR AUDIO - VIDEO PRODUCTS
2 PRODUCT SAFETY SERVICING GUIDELINES FOR AUDIO - VIDEO PRODUCTS CAUTION : DO NOT ATTEMPT TO MODIFY THIS PRODUCT IN ANY WAY. NEVER PEPFORM CUSTOMIZED INSTALLATIONS WITHOUT MANUFAC-TURER’S APPROVAL. UNAUTHORIZED MODIFICATIONS WILL NOT ONLY VOIDTHE WARRANTY, BUT MAY LEAD TO YOUR BEING LIABLE FOR ANT R...
Page 6 - Specifications
5 MODEL DTH-14V1FSN DTH-20V1FSN REMARKS ITEMS DTH-14V3FSN DTH-20V3FSN DTH-14V4FSN DTH-20V4FSN TV STANDARD NTSC-M, PAL N/M POWER INPUT AC160-260V, 50/60 Hz POWER CONSUMPTION 14”=55W , 20”=70W TUNING SYSTEM Frequency Synthesizer (FS) Tuning System TUNING RANGES VHS : 2~13 (12) UHF : 2~13 (56) CATV : 1...
Page 7 - User’s Instruction; Overview of Your Equipment; Your TV’s Back Panel
6 User’s Instruction Overview of Your Equipment Your TV comes with a remote control. The section below summarizes the buttons, controls, and terminals that your willuse with your TV. Your TV’s Front Panel 1 POWER Use this button to turn your TV or off. 2 CH Use these buttons to change channels on yo...
Page 9 - Turning Your TV On; Programming Your TV’s Channel Memory
8 User’s Instruction Operating Your TV Once you have connected your TV to an antenna or cable system, plugged the TV in, and put batteries in the remote, youare ready to use the TV. The first thing you should do is program your TV so it memorizes all of available channels. Turning Your TV On Program...
Page 11 - Changing the TV’s Input
10 User’s Instruction Add/Delete Channels Air 11This channel is in memory.Press VOL to delete.Press CH for other channels. Press MENU to return to Set-Up menu. 4 Add/Delete Channels Air 11This channel is in memory.Press VOL to delete.Press CH for other channels. Press MENU to return to Set-Up menu. ...
Page 12 - Returning to the factory settings
11 User’s Instruction When it connected an Video/Audio cable from the Video/Audio out jack on the VCR to the Video/Audio in jack on the frontyour TV, and your ‘TV’s back panel at the same time, the latter takes precedence of the former. Adjusting Video Settings You may wish to adjust the video setti...
Page 13 - Settings the Wake-up timer
12 Descriptions of video settings The contrast setting controls the relation between the light and black areas of the screen. If the light areas are too brightand are losing details, press the VOL button ; if the picture is gray and lacks contrast, press the VOL button. The brightness settings contr...
Page 14 - Setting Off Timer; Canceling the Wake-up Timer of Off Timer
13 User’s Instruction After Wake-up Timer turned on the TV set, if user do not input the user control (e.g. remote CH or VOL key) within 15 minutes,the TV set will turn off automatically. If user input the user control within 15 minutes, the TV set will turn on continuously.It is safety feature for ...
Page 15 - Additional Features
14 User’s Instruction Setting the Sleep Timer The sleep timer allows you to set an amount of time from 15 minutes to 120 minutes. TV will count down the amountof time you set, then turn itself off. To set the sleep timer :1 With the TV turned on, press the MENU button until “Time” menu will be displ...
Page 16 - CC on Mute
15 User’s Instruction Captioning Many TV shows contains “closed captions”. These captions are hidden words that can be displayed on your TVscreen. There are two types of these words : “captions” usually follow the action on-screen, providing a written versionof the dialogue, narration, and sound eff...
Page 17 - System
16 User’s Instruction Power Restore User can select the On/Off status when the power cord put into the wall outlet. If user have a cable box with AC outlet,then user can connect the TV power cord to the AC outlet and control the TV without TV remote control. This functionis rarely used for home use,...
Page 20 - Block Diagram
Page 21 - Alignment Instructions; SERVICE MODE ADJUSTMENTS
20 Alignment Instructions 1. SERVICE MODE ADJUSTMENTS Follow the steps below whenever service adjustment is required. See Table-A and Table-B to determine if ser viceadjustments are required. 1) How to enter the service mode using the user remote control. • Turn the set on.• Direct the remote contro...
Page 22 - ASSEMBLY ADJUSTMENTS
21 Alignment Instructions Table-B DATA INITIAL RANGE S2 Screen Adjustment - - Auto RF AGC - - Video Level (VIDEOL) 7 0 ~ 7 Must be set to 7 RF AGC Delay (RFAGCD) * 0 ~ 63 Align RF AGC threshold FM Level (FM.LEV) 20 0 ~ 31 Must be set to 20 AGC Point 3.75 - Select AGC reference voltage FF CHK VCR - -...
Page 26 - SCHEMATIC DIAGRAM
Page 27 - PRINTED CIRCUIT BOARD
Page 28 - EXPLODED VIEW
Page 34 - Service Parts List
33 LOC PART CODE PART NAME DESCRIPTION LOC PART CODE PART NAME DESCRIPTION ® 48B4343A01 TRANSMITTER REMOCON R-43A01 (AA) PTACPWH403 ACCESSORY AS DTH-14V4FS 00010 4850A02510 ANT ROD S3BW216B (L=600 MM) 00030 4850Q00810 BATTERY R6P/LN 00040 4850A00650 TRANS ANT MATCHING YSC-T-07 BR 00050 48586003S1 MA...
Page 40 - IC Description; APPENDIX
Page 43 - Model Name
42 IC Description - Auto Power On Function. (Power Restore function in the Special Menu)- Heat Run Function. --- OSD White Back-Ground- Sleep Timer.- Wake Up Time Function.- Off Time Function.- Remote Reception & Control.- Auto Tint.- Power Restore.- Input(TV/Line) Controlled function. ---------...
Page 44 - PIN
43 IC Description 6. Pin Description PIN Terminal Name Explanation Remarks Input - High (DC_5V) : The only TV. (Option) - Low (DC_0V) : Line. (Video) Reception - High (DC_5V) : Cable. (Option) - Low (DC_0V) : Air. Audio - High (DC_5V) : Mon. (Option) - Low (DC_0V) : Stereo. Remocon - High (DC_5V) : ...
Page 46 - TO IN
45 IC Description PIN Terminal Name Explanation Remarks - 4-bit input / output por t. - Input or output can be specified for each bit. - # 31 : . Only Cn-220, ITT(MSP) Low : Front Mask / Mono, High : Back / Stereo. - Other function - Interrupt receiver format, vector addresses. Notice R:Rising, F:fa...
Page 48 - Troubleshooting Guide
Page 49 - NG : Go to the figure
48 Troubleshooting Guide 2. NO PICTURE NG : Go to the figure OK : Go the figure Check the waveform of I101 #46 APPENDIX
Page 51 - NG : Loss of signal or weak signal
50 Troubleshooting Guide 4. CH DON’T STOP NG : Loss of signal or weak signal OK : Go to the figure Check the input signal conditions APPENDIX