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SP (R) SP (L) LCD Module Key H/p hone (TPA6110) Audio-R Aud io amp (TPA300 4) LVDS Audio-L AUDIO CVBS YUV 8bit ,Clock,IIC, PC Audi o,POWER, CVBS,S VIDEO,AUDIO SVID EO BLOCK DIAGRAM AUDIO YUV 8bit ,Clock 15V 5V INV on BRT ADJ MIC IIC POWER AD C MST9 883C YUV 8bit Clock INV_ONOFF BRI_ADJ DC/DC Block IIC RGB,HS,VS IIC - 9 - IIC Mic om MTV412 LIPS SAW VCT49xy (A/V DE C) 8bit IF CVBS CVB S Video Signal Process or (MST51510) W/W Tuner Audio L/R Audio L/R RGB PC Audio S D R A M Analog Digital SCART DVI-D DSUB MIC
DESCRIPTION OF BLOCK DIAGRAM 1. Format Converter (MST9883C)(U702) This IC contain A/D converter, Pre-amp and PLL circuit that converting Analog video signal(0.7p-p RGB) to digital signal.(656 Format) 2. Power Supply Block (LIPS) This Block Generates DC Voltage (5V,15V) to Main Control system from AC Power (100-240 V, 50/60 Hz, 1.0A) The Minimum of Power efficiency is about 80%. 3. DC/DC Converter block DC/DC Converter convert the input 5V,15V to proper 3.3V,5V,12V for Main control system. For shooting heat trouble, we use the DC/DC converting IC 4. Audio Amplifier (TPA3004D2)(U201) This block is composed of TPA3004D2 and peripheral device The function of the audio amplifier is that to amplify audio L / R signal transmitted from audio decoder. The audio signal is amplified according to pre-defined DC volume control curve. Also, headphone amplifier (TPA6110) is controlled through line-out 5. Audio / Video / IF Decoder(U601) This block is composed of VCT49xy and peripheral devices. Micom controls this IC through IIC Line. 1) Video Decoder This Block Selects input Video signals (like CVBS, Y/C, SCART RGB) and output RGB signal. On decoding, We can control signal like Contrast, Brightness, Sharpness, Color, tint signals including Adaptive Comb Filter 2) Audio Decoder This block analyzes audio input signal through A/V Jack and PC audio and Tuner IF. The analyzed signals transmitted to audio amplifier (TPA3004D2) On decoding, We can control signal like Bass, treble. 3) IF Decoder This block can change IF signal to audio and video signal that transmitted to Video/audio decoder. 6. Video signal processor (Scaler IC)(U401) It is composed of MST51510 Micom controls this IC through IIC Line. This IC includes A/D Converter and LVDS Transmitter This IC is directly Inputted Analog and Digital Signal and transmits to LCD Module 7. MICOM(U501) It is composed of MTV412 This IC controls peripheral devices through IIC line 8. TUNER(TU802) Micom controls this IC through IIC Line. TUNER makes IF and transmits IF signal to VCT49xy. - 10 -
Page 1 and 2: 1. Model Description MODEL L173SAB/
Page 3 and 4: Website:http://biz.LGservice.com E-
Page 5 and 6: SPECIFICATIONS ....................
Page 7 and 8: WARNING FOR THE SAFETY-RELATED COMP
Page 9 and 10: General Soldering Guidelines 1. Use
Page 11: MODE 1 2 3 4 5 6 7 8 9 10 11 12 13
Page 15 and 16: Windows EDID V1.0 User Manual Opera
Page 17 and 18: 1 1 2 3 Waveforms NO POWER (POWER I
Page 19 and 20: 7 J802-#11 Waveforms NO RASTER ON T
Page 21 and 22: 8Pin CW401 CW402 CW404 CW403 Connec
Page 23 and 24: Ref. No. 101 102 103 104 105 106 10
Page 25 and 26: DATE: 2004. 8. 12. *S *AL LOC. NO.
Page 31 and 32: 1 J103-#5, 6 / U501-#8 3 U401-#171
Page 33 and 34: 4 U901 5 U902 4. POWER - 30 - 5 4
Page 35 and 36: 6. VIDEO(MST9883C) - 32 -
Page 37 and 38: 8. KEY PART - 34 -

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