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LG RH188H Service Manual
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LG RH188H Service Manual

LG RH188H Service Manual

Hdd/dvd recorder
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See also: Owner's Manual
HDD/DVD RECORDER
SERVICE MANUAL
MODELS : RH178H/188H/1999H/HDR688X
CAUTION
BEFORE SERVICING THE UNIT, READ THE "SAFETY PRECAUTIONS"
IN THIS MANUAL.
P/NO : AFN30086042
APRIL,2006

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Summary of Contents for LG RH188H

  • Page 1 HDD/DVD RECORDER SERVICE MANUAL MODELS : RH178H/188H/1999H/HDR688X CAUTION BEFORE SERVICING THE UNIT, READ THE “SAFETY PRECAUTIONS” IN THIS MANUAL. P/NO : AFN30086042 APRIL,2006...
  • Page 2 CONTENTS SECTION 1 ..SUMMARY SECTION 2 ..CABINET & MAIN CHASSIS SECTION 3 ..ELECTRICAL SECTION 4 ..RS-01A LOADER PART SECTION 5 ..REPLACEMENT PARTS LIST...

  • Page 3: Table Of Contents

    SECTION 1 SUMMARY CONTENTS NEW FUNCTIONS OF HDD/DVD-RECORDER ..............1-2 PRODUCT SAFETY SERVICING GUIDELINES FOR VIDEO PRODUCTS ....1-3 SERVICING PRECAUTIONS ....................1-4 • General Servicing Precautions • Insulation Checking Prodedure • Electrostatically Sensitive Devices SERVICE INFORMATION FOR EEPROM IC SETTING ..........

  • Page 4: New Functions Of Hdd/Dvd-Recorder

    NEW FUNCTIONS OF HDD/DVD-RECORDER • HDMI HDMI IS THE SPECIFICATION FOR THE HIGH-DEFINITION MULTIMEDIA INTERFACE. HDMI IS PROVID- ED FOR TRANSMITTING DIGITAL TELEVISION AUDIOVISUAL SIGNALS FROM HDD-DVD RECORDER TO TELEVISION SETS, OTHER VIDEO DISPLAYS. HDMI CAN CARRY HIGH QUALITY MULTI-CHANNEL AUDIO DATA AND CAN CARRY ALL STANDARD AND HIGH DEFINITION CONSUMER ELECTRONICS VIDEO FORMATS.

  • Page 5: Product Safety Servicing Guidelines For Video Products

    When servicing this product, under no circumstances should the original design be modified or altered without permission from LG Electronics Corporation. All components should be replaced only with types identical to those in the original circuit and their physical location, wiring and lead dress must conform to original layout upon completion of repairs.

  • Page 6: Servicing Precautions

    SERVICING PRECAUTIONS CAUTION : Before servicing the HDD/DVD Recorder cov- Electrostatically Sensitive (ES) Devices ered by this service data and its supplements and addends, Some semiconductor (solid state) devices can be damaged read and follow the SAFETY PRECAUTIONS. NOTE : if easily by static electricity.

  • Page 7: Service Information For Eeprom Ic Setting

    SERVICE INFORMATION FOR EEPROM IC SETTING MICOM START OPTION CONFIRMATION MODE DETECT NEW EEPROM (OPTION EDIT SCREEN) EEPROM ID CHECK MODEL NAME BINARY Press the "CLEAR" key on the 2 BYTE(B3,248,249) RH.S OPT1 00000000 Remote controller and the "CH - " OPT2 00000000 key one the Front Panel the same...

  • Page 8: Specifications

    SPECIFICATIONS • GENERAL Power requirements AC 200-240V, 50/60 Hz Power consumption Dimensions (approx.) 430 X 54 X 275 mm (w x h x d) without foot Mass (approx.) 4.1 kg Operating temperature 5°C to 35°C Operating humidity 5 % to 90 % Television system PAL I, B/G, I/I, SECAM D/K, K1 color system Recording format...
  • Page 9 SECTION 2 CABINET & MAIN CHASSIS CONTENTS EXPLODED VIEWS ........................2-2 1. CABINET AND MAIN FRAME SECTION ................2-2 2. DECK MECHANISM SECTION(RS-01A) ................2-3 3. PACKING ACCESSORY SECTION ..................2-4...

  • Page 10: Exploded Views

    EXPLODED VIEWS 1. CABINET AND MAIN FRAME SECTION OPTIONAL PART...

  • Page 11: Deck Mechanism Section(Rs-01A)

    2. DECK MECHANISM SECTION(RS-01A)

  • Page 12: Packing Accessory Section

    3. PACKING ACCESSORY SECTION OPTIONAL PART 810 CABLE ASS'Y 821 SCART CABLE Cable, Coaxial 808 Battery Plug Ass'y, 1Way Remote Control Plug Ass'y, 2Way Instruction Ass'y FLAT CABLE Packing Packing 832 DISC...
  • Page 13 SECTION 3 ELECTRICAL CONTENTS HDR PART ELECTRICAL TROUBLESHOOTING GUIDE ........................3-2 1. POWER SUPPLY ON SMPS BOARD...........................3-2 2. POWER SUPPLY ON I/O BOARD ..........................3-4 3. SYSTEM CIRCUIT PART ..............................3-7 4. DISC NOT RECOGNIZED.............................3-7 5. WHEN PLAYING DISC, NO AUDIO OUTPUT ......................3-8 6.

  • Page 14: Hdr Part

    HDR PART ELECTRICAL TROUBLESHOOTING GUIDE 1. POWER SUPPLY ON SMPS BOARD No 5.3VA Replace the F101 Is the F101 Normal? (Use the same Fuse) Is the BD101 Normal? Replace the BD101 Is the TH01 Normal? Replace the TH101 Is the Vcc (10V - 17V) Is the D102 normal? supplied to IC101 Pin6? Check or Replace the...
  • Page 15 No 5V for HDD & No 12V for HDD & DVD Drive DVD Drive Is there about 5.5V Check D125 and Is there about 13.5V Check D124 and at the IC156 pin1? Replace at the IC155 pin1? Replace Is there about 4V ~ 5V Check the ‘PWR CTL Is there about 4V ~ 5V Check the ‘PWR CTL...

  • Page 16: Power Supply On I/O Board

    2. POWER SUPPLY ON I/O BOARD No 12V No 5VT Is the VCC (14V) sup- Check D124 on SMPS Is the VCC (5.3V) sup- Check 5.3VA on plied to Q164 Collector? Board and Replace plied to Q155 Emitor? SMPS Board Is there about 12.5V at Check Q164 and Is there about 0V at D152...
  • Page 17 No 5.0VD No 3.3V Is there about 5.3V Check 5.3VA on Is there about 3.8V at Check or Replace at the IC153 pin 1? SMPS Board the IC152 pin1? the D127 Is there about 4V ~ 5V Check the ‘PWR CTL Is there about 4V~ 5V Check the ‘PWR CTL at the IC153 pin 4?
  • Page 18 No SW_12VG No SW_FD(+) Is the VCC (14V) sup- Check D124 on SMPS Is the VCC (FD+) sup- Check D121 on SMPS plied to Q165 Collector? Board and Replace plied to Q163 Collector ? Board and Replace Is there about 12.5V at Check Q165 and Is there about 5.3V at R184 Check Q163 and...

  • Page 19: System Circuit Part

    3. SYSTEM CIRCUIT PART “Please wait” displayed Continue at Power On Check PVM02 pin 13 IC1306 pin 5 : (/HOST-RESET) IC 701 pin 19 (R714) X1101 : Clock oscillated? Replace X1101 (13.5MHz) Check IC1201 (Flash R11A9 : IC1201 pin 32 : Memory) &...

  • Page 20: When Playing Disc, No Audio Output

    5. WHEN PLAYING DISC, NO AUDIO OUTPUT IC808 pin 15,18(Audio_out R/L): IC101 CHECK Is there a signal? DEFECT IC808 pin 1,2,3,4 : Pin 10 (Reset “H”) Pin 7,8 (I2C) : CHECK CHECK Q801, Q802, Q803, IC808 pin 14,19 (Z_mute_R/L) : IC808 pin 17 (12V) Q805, Q806, Q807, Q808 IC701 pin 58 (A_mute_L) :...

  • Page 21: No Optical / Digital Output

    6. NO OPTICAL / DIGITAL OUTPUT R1107 : Is there a signal ? CHECK PVM01 pin 1 (SPDIF_OUT) : R851 : C856 : Is there a signal? Is there a signal ? CHECK BD817 : JK803 pin 2 (5.2V) Is there a signal ? CHECK JK803 &...

  • Page 22: No Tuner Audio Output

    7. NO TUNER AUDIO OUTPUT TU701 pin 16 (SIF) : Is there a signal? C928,C963 : Is there a signal? IC903,904 pin 7 : CHECK IC903,904 pin 6 (12V) Is there a signal? CHECK IC803 pin 20, 24, 23, 27 IC 803 pin 2,4 (VCC) : 12V Replace IC803 Is there a signal?

  • Page 23: No External Input Audio

    8. NO EXTERNAL INPUT AUDIO < AV3 > < AV1/AV2 > < AV4 > C979, C980 : IC803 pin 10,16 : CHECK Cable connec- C976,C977 : Is there a signal? Is there a signal? tions & Input signal. Is there a signal? CHECK Cable connec- IC803 pin 20, 24, 23, CHECK IC 803 pin 2,4 (VCC):12V...

  • Page 24: No Rgb / Component Video Signal When Play Disc

    9. NO RGB / COMPONENT VIDEO SIGNAL WHEN PLAY DISC R1153,R1154,R1155 : Is there a signal ? PVM01 pin 2,6,10 : Is there a signal ? IC802 pin 18,21,24 : CHECK IC802 pin Is there a signal? 1,16 (5.2V) CHECK SW801 status & Replace IC802 SW801 pin 2 (RGB_SEL”H”) 10.

  • Page 25: No Tv, External Input Video Signal

    11. NO TV, EXTERNAL INPUT VIDEO SIGNAL No video signal of external No video signal of external When Cable connecting Tuner and Rear input AV3 (Rear RCA input) input AV4(Composite/S-Video) SCART1,2 No TV video signal (AV1/2) CHECK Cable con- nection & Input signal C618 : Is there a C917,C923,C934 : C859, C869, C871:...

  • Page 26: No Dv(Ieee 1394) Input (Video/Audio) Signal

    12. NO DV(IEEE 1394) INPUT (VIDEO/AUDIO) SIGNAL Check DV_Jack connection Change to DV-mode. DV-mode switching ? Using Remote Control IC1401 power 3.3V IC1401 power 3.3V IC1401 pin 37 : “High” CHECK IC1302 Reset Circuit & X401 (24.576MHz) oscillated ? IC1401 pin 15 : “High” CHECK DV Cable Is there a signal? IC1401 pin 1,27,28,29,30 :...

  • Page 28: Block Diagrams

    BLOCK DIAGRAMS 1. OVERALL BLOCK DIAGRAM I/O Board MAIN Board V3_In I/O Board V4_In S_In VOUT_CVBS CVBS_Out V.S1/V.S2 VOUT_Y/C S_VIDEO_Out VIN_D[9:0] Y/Pb/Pr or R/ G/B VOUT_Y/Pb/Pr_R/G/B AV_DEC A.S1/A.S2 Opti cal & Di gital AV_DEC AOUT_IEC958 S/PDIF S/PDIF Deco der Audio Out Deco der SAA7137 SAA7137...

  • Page 29: Layout Connection Block Diagram_1

    2. LAYOUT CONNECTION BLOCK DIAGRAM_1 Scart1/ Optical AV3/Comp /Digital P104 P104 Scart2 Video FD(+) FD(-) HDMI -28VA SMPS Board SMPS Board 14VA INPUT / OUTPUT Board INPUT / OUTPUT Board 33VA PHM01 3.8VA 5.3VA P1D01 PWR_CTL_H P1D01 PMH10 Jun ction Bíd 4pin Jun ction Bíd Jun ction B'd...

  • Page 30: Layout Connection Block Diagram_2

    3. LAYOUT CONNECTION BLOCK DIAGRAM_2 X pin : FFC X pin X pin : B'd to B'd X pin I/O B'd SMPS B'd X pin : B'd in X pin : Harn ess 2pin 2pin HDMI SMPS SMPS I/O Board I/O Board 4pin 4pin...

  • Page 31: Smps Block Diagram

    4. SMPS Block Diagram BD101 RECTIFIER & SMOOTHING BL OCK D121,FR121,C120,R181, R191,R131,ZD121 P1701 C103 SNUBER RECTIFIER & FD(+) BLOCK SMOOTHING BL OCK D101,R104, D122,C122,R122 FD(-) C105,C106 5V RECTIFIER & -28V SMOOTHING BL OCK NOISE FILTER D125,C121 14VA BLOCK V101,C101,C102, 14V RECTIFIER & 3.8VA R101,L101 T101...

  • Page 32: Power : Main Board Block Diagram

    5. Power : Main Board Block Diagram 3.3V 3V3A V33_FLASH V33_STB V33_FLASH V33_BREG 3V3D 74LVC08 74LVT16373 74LVC08 74LVT16373 FLA SH FLA SH V33_PHY_A V33_PHY_D 74HCT125 74LVC04 74HCT125 74LVC04 3.3VA TSB41AB1 74LVC541A 74LVT273 74LVC541A 74LVT273 DAC 3.3V 1.25V V33_E5_VPAD V33_E5_VDDRE DMN8653 1.8V HDD IF LOADER IF...

  • Page 33: Power : I/O Board Block Diagram

    6. Power : I/O Board Block Diagram 5.3VA 12VG(SW) 33VT 5.2V SYS_5.3VA U-COM A.SW A/V.SW (C+) Video S/W U-COM Tuner (MN101DF10GAF) (NJM2521) (MM1443) (BH7868FS) (MN101DF10GAF) V 6dB Amp Reset IC Diff OP AMP (MM1510) Opti cal Driv e (KIA7031P) (NJM4580) PWR Fail (KIA7042) 3.3V...

  • Page 34: In/Out Block Diagram ( Scart Model Only )

    7. IN/OUT BLOCK DIAGRAM ( SCART MODEL ONLY ) POWER_CTL_H IC705 IC705 I2C I/O TIMER_H 24LC16B 24LC16B IC701 STANBY_H EEPROM EEPROM MN101DF10GAF RGB_SEL I2C I/O MICOM SW_FD(+) A_MUTE_L IC703 IC703 AUDIO Mute AUDIO Mute CV.IN2 Z_MUTE_L/R SW_5.3VA MM1510 Blo ck MM1510 Blo ck IC801...

  • Page 35: Video Block Diagram

    8. VIDEO BLOCK DIAGRAM F_Y_IN S-VIDEO IN C_Y_IN JACK F_CVBS_IN FRONT IN IC901 JACK SAA7137 R_CVBS_IN REAR IN JACK R/G/B_SCART_IN DECODER VIN_D[9:0] EU2_V_IN VIN_CLK SCART2 SW_V_OUT VIN_INT EU2_V_OUT IC803 T_V_OUT MM1443 IC1101 TUNER AV SWITCH DMM8653 EU1_V_IN MPEG CVBSout R_OUT ENC/DEC EU1_V_OUT G_OUT...

  • Page 36: Video S/W Path Block Diagram

    9. VIDEO S/W PATH BLOCK DIAGRAM JK808 JK801 JK801 JK802 JK802 / JK807 AV4 / S-V TU701 TPA+ F_Y_IN TPA- F_CVBS F_C_IN TPB+ IC1401 TPB- R_CVBS TSB41AB1 VIN_INT IC901 VIN_CLK SW_V_OUT SAA7137 IC803 BIO_PHY_D[7:0] (TU/E1/E2) VIN_D[9:0] AV. DEC MM1443 BIO_LPS TU_V_OUT BIO_PHY_CLK BIO_LREQ Ö.

  • Page 37: Audio Block Diagram

    10. AUDIO BLOCK DIAGRAM F_A_L_IN FRONT F_A_R_IN JACK R_A_L_IN REAR R_A_R_IN JACK IC901 TUNER SECAM_AM SAA7137 AIN_DO EU1_A_IN_L TU_L_OUT DECODER IC903,904 IC_OUT_L AIN_SCLK EU1_A_IN_R AUDIO S/W TU_R_OUT IC_OUT_R AIN_FSYNC NJM2521 SCART1 EU1_A_OUT_L AIN_MCLK EU1_A_OUT_R IC803 SW_A_OUT_L MM1443 SW_A_OUT_R IC1101 AV SWITCH EU2_A_IN_L DMM8653 EU2_A_IN_R...

  • Page 38: Audio S/W Path Block Diagram

    11. AUDIO S/W PATH BLOCK DIAGRAM 8(14) 10(16) 25(21) 26(22) IC903,904 SECAM_AM 24(20) NJM2521 SW4(7) (AUDIO SW) SW5(8) IC901 SW6(3) SAA7137 (AV. DEC) IC803 27(23) MM1443 6(12) IC808 IC801 18(15) 1(7) CS4351 NJM4580 (CODEC) (BUFFER) COAXIAL RC CIRCUIT OPTICAL I/O BOARD DMN8653 MPEG , ENC/DEC MAIN BOARD...

  • Page 39: Fld / Μ-Com / Tuner Block Diagram

    12. FLD / µ-COM / TUNER BLOCK DIAGRAM SECAM_AM TU_L_OUT IC903,904 AV S/W IC_OUT_L TU_R_OUT A S/W IC_OUT_R IC803 NJM2521 AV. DEC MM1443 IC901 EEPROM SMPS SAA7137 IC705 X702 X701 POWER BOARD TUNER 24LC16B 14.31818MHz 32.768KHz TU701 I2C_DATA PWR_CTL_H I2C_CLK TIMER_H SMPS Bl ock ON I/O BOARD...

  • Page 40: Main Block Diagram ( Scart Model Only )

    13. MAIN BLOCK DIAGRAM ( SCART MODEL ONLY ) TPA+ HA[5:1][23:22] TPA- HA[5:1][23:22] /E5_LWEn TPB+ /E5_LWEn JACK E5_SDRAM_DQS[1:0] TPB- /E5_OE /E5_OE E5_SDRAM_DQM[1:0] /E5_CS0 IC1201 /E5_CS0 E5_SDRAM_CLK1 HD[15:0] PHY_LINKON MX29LV640MT IC1202 E5_SDRAM_CLK#1 TC-90 PHY_LPS HD[15:0] IC1401 HYB25D512 E5_SDRAM_DQ[15:0] HD[15:0] IC1301 FLASH HD[15:0] PHY_LREQ 160CE-5...

  • Page 41: Timer Block Diagram

    14. TIMER BLOCK DIAGRAM FD +(SW) FD( - ) 5.3VA(SW) 5.3VA 29VA FLD Driv e IC FLD Driv e IC FLD( - ) FLD( + ) FLD( - ) Remoc on Reciver FLD( + ) Remoc on Reciver (PT6315) (PT6315) I/O U-COM PWR CTL STANBY_H 5.3VA(SW), FD+(SW)

  • Page 42: Circuit Diagrams

    2. Voltages are DC-measured with a digital voltmeter MODIFIED OR ALTERED WITHOUT PERMISSION IMPLEMENTATION OF THE LATEST SAFETY AND during Play mode. FROM THE LG ELECTRONICS CORPORATION. ALL PERFORMANCE IMPROVEMENT CHANGES INTO COMPONENTS SHOULD BE REPLACED ONLY WITH THE SET IS NOT DELAYED UNTIL THE NEW SERVICE TYPES IDENTICAL TO THOSE IN THE ORIGINAL CIR- LITERATURE IS PRINTED.

  • Page 43: Smps 2 Circuit Diagram

    2. SMPS 2 CIRCUIT DIAGRAM 3-45 3-46...

  • Page 44: Mpeg Circuit Diagram

    3. MPEG CIRCUIT DIAGRAM 3-47 3-48...

  • Page 45: Flash/Ddr Circuit Diagram

    4. FLASH/DDR CIRCUIT DIAGRAM 3-49 3-50...

  • Page 46: Reset & 1394 & Jepg Circuit Diagram

    5. RESET & 1394 & JEPG CIRCUIT DIAGRAM 3-51 3-52...

  • Page 47: Atapi & Memory Card Circuit Diagram

    6. ATAPI & MEMORY CARD CIRCUIT DIAGRAM 3-53 3-54...

  • Page 48: I/O, Μ-Com Circuit Diagram

    7. I/O, µ-COM CIRCUIT DIAGRAM 3-55 3-56...

  • Page 49: Tuner/Mpx/Adc/Dac/Jack Circuit Diagram

    8. TUNER/MPX/ADC/DAC/JACK CIRCUIT DIAGRAM 3-57 3-58...

  • Page 50: Decoder Circuit Diagram

    9. DECODER CIRCUIT DIAGRAM 3-59 3-60...

  • Page 51: Timer Circuit Diagram

    10. TIMER CIRCUIT DIAGRAM 3-61 3-62...

  • Page 52: Waveforms

    • WAVEFORMS X1101 PMV 02 PMV02 PMV02 PMV02 IC1202 X1401 13.5 MHz PIN1 PIN3 PIN29 PIN26 PIN45 24.576MHz HOST_RXD HOST_TXD SDRAM_CLK1 IC1401 PMV01 X901 PMV01 PMV01 PMV01 PMV01 PIN1 PIN9 14.31818MHz PIN18 PIN10 PIN22 PIN2 PHY_CLK VIN_CLK VOUT_CVBS VOUT_G/Y VOUT_C VOUT_R/Pr PMV01 PMV01...

  • Page 53: Circuit Voltage Chart

    • CIRCUIT VOLTAGE CHART MODE MODE MODE MODE MODE MODE MODE PIN NO. PIN NO. PIN NO. PIN NO. PIN NO. PIN NO. PIN NO. IC101 LSI DMN8653 1.32 1.32 1.32 2.01 1.97 1.97 0.35 0.32 0.30 2.35 2.29 2.30 AA25 1.18 1.18...
  • Page 54 MODE MODE MODE MODE MODE MODE MODE PIN NO. PIN NO. PIN NO. PIN NO. PIN NO. PIN NO. PIN NO. AF23 0.00 0.00 0.00 0.00 0.00 0.22 0.24 0.19 0.14 2.47 2.48 2.48 12.15 12.15 12.15 1.88 1.87 1.87 2.95 2.96 2.91...
  • Page 55 MODE MODE MODE PIN NO. PIN NO. PIN NO. 0.07 0.07 0.07 1.88 1.87 1.05 7.22 7.21 7.19 0.26 1.56 1.58 0.02 0.02 0.02 10.70 10.69 10.67 0.27 2.49 2.46 1.85 1.85 1.87 7.46 7.45 7.43 0.27 1.47 1.45 1.50 1.56 1.88 0.00...

  • Page 56: Printed Circuit Diagrams

    PRINTED CIRCUIT DIAGRAMS 1. MAIN P.C.BOARD ( TOP VIEW ) ( BOTTOM VIEW ) 3-71 3-72...

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