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SERVICE MANUAL 14” TV+DVD COMBO CHASSIS PHILIPS UOC TDA9370 + DS-C005B DOCUMENT : DTA-1486 SERVICE MANUAL DATE 2004-11-20 This manual is the latest at the time of print, and does not include the modification which may be made after the printing, by the constant improvement of product.
CONTENTS Safety precautions……………………………………………………………..……………3 TV block diagram……………………………………………………………………..…….4 Replacement of memory IC………………………………………………………….……5 Service adjustment……………………………………………………………..…………...5 ICs functional description…………………………………………………………………8 Test point waveform………………………………………………………………………10 All ICs voltages……………………………..……………………………………………….10 Purity / convergence adjustment………………………………………………………11 DVD maintenance…………………………………………………………………………13 10. List of Parts ………………………………………………………………………….…….14 11. Circuit diagram………………………………………………………………………Attached 12. Exploded view ………………………………………………………………………Attached...
1. SAFETY PRECAUTIONS The design of this product contains special hardware, many Isolation Check circuits and components especially for safety purposes. For (Safety for Electrical Shock Hazard) continued protection, no changes should be made to the After re-assembling the product, always perform an isolation original design unless authorized in writing by the check on the exposed metal parts of the cabinet (antenna manufacturer.
3. REPLACEMENT OF MEMORY IC 1. MEMORY IC. This TV uses memory IC. In the memory IC are memorized data for correctly operating the video and deflection circuits. 2. PROCEDURE FOR REPLACING MEMORY IC (1) Power off Switch the power off and unplug the power cord from AC outlet. (2) Replace IC Be sure to use memory IC written with the initial data values.
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Adjustable Items Direct access key Items Description Preset Remark “1” 5/6HSH Horizontal shift “2” 5/6VSL Vertical slop 5/6VAM Vertical amplitude 5/6SCL S-correction 5/6VSH Vertical shift 5/6VOF OSD Vertical offset HOF* OSD Horizontal offset “3” Black level offset R Black level offset G White point R White point G White point B...
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Optional data Function Description Preset Remark Bit 7 Func2 Func2 Func1 Bit 6 Func1 NONE Bit 5 Half Tone Translucence OSD manual Bit 4 1=Enable (Can only be selected either RGB and DVD) Bit 3 1=Enable Bit 2 Comb filter 1=Enable Bit 1 Woofer volume...
0=Display Energy when switch on and “no signal” when no signal. Note:Don’t adjust any OPTION items, please inform the engineer about any change. 5. ICs functional description 1. N501 UOC TDA9370 SYMBOL DESCRIPTION STAND BY output. In STAND BY mode, low level (Power OFF).
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CHROMA SVHS (C) input AUDOUT Audio output INSSW2 YUV insertion input R2/VIN R input / V (R-Y) input / PR input G2/YIN G input / Y input B2/UIN B input / U (B-Y) input / PB input BCLIN Beam current limiter input BLKIN Black current input Red output...
8. PURITY / CONVERGENCE ADJUSTMENT PURITY ADJUSTMENT WEDGE Demagnetize CRT with the demagnetizer. DEFLECTION YOKE Loosen the retainer screw of the deflection yoke. Remove the wedges. Input a green raster signal from the signal generator, and turn the screen to green raster. Move the deflection yoke backward.
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STATIC CONVERGENCE ADJUSTMENT 1. Input a crosshatch signal. 2. Using 4-pole convergence magnets overlap the red and blue lines in the center of the screen (Fig. 1) and turn them to magenta (red/blue). (FRONT VIEW) 3. Using 6-pole convergence magnets overlap the magenta (red/blue) and green lines in the center of the screen and turn them to white.
9. DVD Part: Introduction of MTK1379 maintenance Under normal power supply conditions, the maintenance plan for MT1379 mono-chip is: first the reset circuit resets the MT1379, after the crystal oscillator circuit gave the clock signal to MT1379, MT1379 will start the initialization check for Flash、E PROM、SDRAM, after everything is checked to be normal, it will start initialization check for 7Audio DAC, MT1336 and motor Driver.
10. List of Parts PART LOCATION DESCRIPTION NUMBER FRONT CABINET ASS’Y BCJ7008-----Q 0090804174 LENS MTAA7011AA--Q 0090204510 SCREW SJ2824-87 ST3X10F 0090600011 KEYS MTAA7012AA--Q 0090204511 SCREW SJ2824-87 ST3X10F 0090600011 SWITCH BUTTON MTAA7013AA--Q 0090204512 SPRING MTBH7004BC--Q 0090100663 SPEAKER YDT0407-9AU-8W-8Ω 0094002137 SPEAKER WIRE 0090401453 SCREW SJ2824-87 ST3X8F 0090600012...
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RATING LABEL 0090204810 CARTON BOX 0090504290 BATTERY 0094000105 PLASTIC BAG FOR USER MANUAL 0090204759 REMOTE CONTROL 0094008725 PLASTIC BAG FOR 14” COMPLETE SET 0090204758 PLASTIC FOR POWER CORD 0090500018 USER MANUAL 0090504210 LOOP ANNTENNA 0090401678 MAIN BAORD ASS’Y 0094008724 N301B HEAT SINK HEAT SINK 0090100450...