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S/M No : TCM101S001
Service Manual
Color Television
CHSSIS MODEL
CM-101S DTH-21S7
DTH-21S8
Caution
: In this Manual, some parts can be changed for improving. their
performance without notice in the parts list. So, if you need the
latest parts information, please refer to PPL(Parts Price List)in
Service Information Center.
April. 2007
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TABLE OF CONTENTS SAFETY PRECAUTIONS 2 SPECIFICATIONS 3 CIRCUIT BLOCK DIAGRAM 4 ALIGNMENT INSTRUCTIONS 5 YOUR REMOTE CONTROL 5 SERVICE MODE ADJUSTMENT 6 ASSEMBLY ADJUSTMENT 8 APPENDIX(Appendix is provide only by internet[http://svc.dwe.co.kr]) IC DESCRIPTION 11 UOC III SERIES 11 LA7848_TV VERTICAL OUTPUT+ EW DRIVER 23 24WC16-16 KB EEPROM 25 LA42072N 26 STR-6754 29 WAVEFORMS 32 TROUBLE SHOOTING GUIDE 33 NO POWER 33 NO PICTURE 34 NO SOUND 35 CH DON’T MEMORY or SKIP 36 NO COLOR 37 NO VERTICAL DEFLE
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SAFETY PRECAUTIONS CAUTION : DO NOT ATTEMPT TO MODIFY THIS PRODUCT IN ANY WAY. SUBJECT : X-RADIATION NEVER PERFORM CUSTOMIZED INSTALLATIONS WITHOUT MANUFAC- TURER'S APPROVAL. UNAUTHORIZED MODIFICATIONS WILL NOT ONLY VOID 1. BE SURE PROCEDURES AND INSTRUCTIONS TO ALL SERVICE PERSON- THE WARRANTY, BUT MAY LEAD TO YOUR BEING LIABLE FOR ANT RESULT- NEL COVER THE SUBJECT OF X-RADIATION. THE ONLY POTENTIAL ING PROPERTY DAMAGE OR USER INJURY. SOURCE OF X-RAYS IN CURRENT T.V. RECEIVERS IS THE PICTURE TU
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SPECIFICTION Model DTH-21S7 / 21S8 Item CHASSIS CM-101S TV Standard NTSC-M, PAL-N, PAL-M Power Input AC 220V, 50/60Hz Power Consumption 80W Tuning System Frequency Synthesizer(FS) Tuning System Tuning Ranges TV VHF(L) : CH2 - CH6 UHF(H) : CH7 - CH13 UHF : CH14 - CH69 CATV VHF(L) : 5A, A,B,A-5-A-1,CH2-CH6 VHF(H) : C-W+11,CH7 - CH13 UHF : W+12-W+84 Sound Output 5W + 5W Speaker 8 ohm 5W x 2EA Antenna Input Impedance 75 ohm Unbalanced Auxiliary Input Terminal Side : Video, Audio(L,R) - AV2, Hea
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CIRCUIT BLOCK DIAGRAM -4- BSC29
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ALIGNMENT INSTRUCTION Your Remote Control(R-48C04) 1. POWER Use this button to turn your TV on or off. 2. MUTE Use to turn the TV’s sound on and off. 3. WCHV Use these buttons to change channels on your TV, or select items in the menu system. 4. CVOLB Use these buttons to change your TV's vol- ume, to activate selections in the menu sys- tem, or to change audio and video settings. 5. MENU Use this button to turn the TV’s menu system on and off. 6. DISPLAY Use this button to display the present s
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ALIGNMENT INSTRUCTION 1. SERVICE MODE ADJUSTMENTS Follow the steps below whenever service adjustment is required. See Table- A and Table- B to determine if service adjustments are required. 1) How to enter the service mode using the user remote control. - Turn the set on. - Direct the remote control to the reception window of TV. - Push buttons of remote control in sequence as follows. 1 MUTE DISPLAY MUTE - Then, the screen will appear as follows. SERVICE 02 SERVICE 03 SERVICE 04 SERVICE 05
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ALIGNMENT INSTRUCTION -7-
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ALIGNMENT INSTRUCTION 4-6) 50Hz_Horizontal & Vertical Size, Center Adjussstment Adjust PAL M System’s Picture Geometric with This Mode. After Adjusting, you must turn off to save the setting values. -9-
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ALIGNMENT INSTRUCTION -10-
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IC DESCRIPTION 1. UOC III SERIES 1-1. UOC III BLOCK DIAGRAM -11-
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IC DESCRIPTION 1-2. UOC III FEATURES -12-
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