LG-LHT550-cdr-sm 电路图 维修手册.pdf

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1、DVD/CD & KARAOKE RECEIVER SERVICE MANUAL MODELS : LH-T550,1,2,3SB Speakers: LHS-55SBC, LHS-55SBS, LHS-55SBW MODELS : LH-T550X,TK550X Speakers: LHS-55SBC, LHS-55SBS, LHS-55SBW MODELS : LH-T751,3SB Speakers: LHS-75SBC, LHS-75SBS, LHS-75SBW LH-T550,1,2,3SB/LH-T550X,TK550XLH-T751,3SB MODELS : LH-T550,1,

2、2,3SB/LH-T550X,TK550X/LH-T751,3SBSERVICE MANUAL P/NO : 3829RGP017H APRIL, 2005 Printed in Korea RadioFans.CN 收音机爱 好者资料库 2-42-5 WIRING DIAGRAM WIRELESS OPTICAL IN SCART JACK OPTION SW AV1,2 COMPONENT MONITOR OUT S-VIDEO OUT TUNER SPEAKER TERMINAL MAIN PCB AMP PCB SMPS PCB MD FRONT PCB FRONT PCB MIC&U

3、SB PCB VFD H/P JACK USB JACK MIC JACK MIC JACK CN001PN005 CN350 PN801 6PIN 5PIN 23PIN11PIN24PIN23PIN 14PIN14PIN 30PIN PN103PN104 PN001PN002 PN902PN303 PDM01PDM03 PN105PN302 RadioFans.CN 收音机爱 好者资料库 2-62-7 BLOCK DIAGRAM Audio s/w Bu 4052 ADC CS 5340 Fs = 48kHz Fx DIT CS 8406 (slave) PS 9818 (PWM) Vide

4、o S/W NJM 2279 out (CVBS-S/W) + Slide S/W Video S/W NJM2279 (Y-S/W) USB Controller ALC BA 3308 CS 5340 ADC DVD BLOCK (ES 6698) Mic Volume : OSD CTL MIC1 MIC2 Optical Tuner AV1 AV2 (option) Monitor Out S-AV Component Scart (option) USB Port MIC 7V Wireless L R V L R V G B R L R L R G B R 8 16 V SW1,

5、SW2,MUTE1 (A) Pb(R) ,Pr(R) CTL-A/B (B) VIDEO-SW (A) Tuner-L/R AV1-L/R AV2-L/R SCART-L/R AV1-CVBS AV2-CVBS Monitor out SCART-CVBS out C Y SCART-ID SCART-FB /RST-AD AD-DATA AD-BCK AD-LRCK (A) SPDI F 12.288MHz LRCK BCK ADAT 0,1,2,3 (FL/R,RL/R,C/SW ) MUTE TR Mute /RST-AD(A) Mixing ALRCK,ABCK MCLK,AMDAT

6、SPDIF 8406_SDI,8406_SD O 8406_CLK,8406_CE 8406_RST,8406_IN T H/P Y(G) Y YY C DVD-CVBS CVB S (A)(T_CE,T_DO,T_DI,T_CLK,T_RDS_DATA,T_RDS,CLK) (A) AUDIO MICOM LC876B48 (PIN MAP ) SS T OPTION FRONT STA510A AMP IC MIC1_DET(A) MIC2_DET(A) (A) HP_DET AM PDN TH_W FAN1 FAN2 (A) FAN1_CTL FAN2_CTL OPTION RadioF

7、ans.CN 收音机爱 好者资料库 2-82-9 SCHEMATIC DIAGRAMS 1. POWER SCHEMATIC DIAGRAM_1 ABCDEFGHIJKLMNOPQRST 2-102-11 2. POWER SCHEMATIC DIAGRAM_2 ABCDEFGHIJKLMNOPQRST 2-122-13 3. MICOM SCHEMATIC DIAGRAM ABCDEFGHIJKLMNOPQRST 2-142-15 4. FRONT SCHEMATIC DIAGRAM ABCDEFGHIJKLMNOPQRST 2-162-17 5. DSP& SCHEMATIC DIA

8、GRAM ABCDEFGHIJKLMNOPQRST 2-182-19 6. I/O SCHEMATIC DIAGRAM ABCDEFGHIJKLMNOPQRST 2-202-21 7. MAIN MIC SCHEMATIC DIAGRAM ABCDEFGHIJKLMNOPQRST ABCDEFGHIJKLMNOPQRST 3-223-23 DVD PART SCHEMATIC DIAGRAMS 1. DVD MPEG & DSP SCHEMATIC DIAGRAM ABCDEFGHIJKLMNOPQRST 3-243-25 2. RF & SERVO SCHEMATIC DIAGRAM 3. FRONT KARAOKE SCHEMATIC DIAGRAM ABCDEFGHIJKLMNOPQRST 3-263-27 3-283-29 4. USB CONTROLLER SCHEMATIC DIAGRAM ABCDEFGHIJKLMNOPQRST 5. AMP SCHEMATIC DIAGRAM ( 5TOOL ) ABCDEFGHIJKLMNOPQRST 3-303-31 6. AMP SCHEMATIC DIAGRAM ( 7TOOL ) ABCDEFGHIJKLMNOPQRST 3-323-33