JVC-THL1A-dms-sm维修电路原理图.pdf

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1、SERVICE MANUAL COPYRIGHT 2007 Victor Company of Japan, Limited No.MB623 2007/7 DIGITAL MEDIA SYSTEM MB62320077 SERVICE MANUAL TH-L1A, TH-L1US, TH-L1UB, TH-L1UJ, TH-L1UG, TH-L1UN COPYRIGHT 2007 Victor Company of Japan, Limited Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 2

2、19 Centigrade) Lead free solder used in the board (material : Sn-Cu, melting point : 230 Centigrade) TABLE OF CONTENTS 1PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4 2SPECIFIC SERVICE IN

3、STRUCTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5 3DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5 4ADJUSTMENT . . . .

4、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14 5TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14 AX-THL1

5、SP-THL1W SP-THL1F SP-THL1F SP-THL1C SP-THL1S SP-THL1S RadioFans.CN 收音机爱 好者资料库 1-2 (No.MB623) SPECIFICATION Center unit * Corresponding to Linear PCM Dolby Digital and DTS Digital Surround (with sampling frequency - 32 kHz 44.1 kHz 48 kHz) Output powerFront/Surround40 W per channel RMS at 3 at 1 kHz

6、with 10% total harmonic distortion. Center100 W RMS at 4 at 1 kHz with 10% total harmonic distortion. Subwoofer100 W RMS at 4 at 30 Hz with 10% total harmonic distortion. Audio sectionAnalog InputVIDEO 1 IN, VIDEO 2 IN, VIDEO 3 500 mV/50 k Digital Input*VIDEO 1, VIDEO 3 -21 dBm to -15 dBm (660 nm 30

7、 nm) VIDEO 20.5 V(p-p)/75 Video sectionVideo SystemNTSC/PAL Horizontal Resolution500 lines Signal-to-Noise Ratio60 dB Video output level Composite1 V(p-p)/75 S-video-Y1 V(p-p)/75 S-video-CNTSC0.286 V(p-p)/75 PAL0.3 V(p-p)/75 Component (Interlace/ Progressive) Y1 V(p-p)/75 PB/PR0.7 V(p-p)/75 HDMIHDMI

8、 InputVIDEO 1 IN, VIDEO 2 IN HDMI OutputMONITOR OUT Max capability1920 1080 at 60 Hz / Deep color 4:4:4 / color depth 24 bit. USB storageUSB specificationCompatible with USB 2.0 Full Speed Compatible deviceMass Storage Class Compatible file systemFAT16, FAT32 Bus power supply5 V/500 mA Speaker imped

9、anceFront and Surround3 to 16 Center and Subwoofer4 to 16 GeneralPower RequirementsFor HongKongAC 220 V , 50 Hz For AustraliaAC 240 V , 50 Hz For other countriesAC 110 V - 240 V , 50/60 Hz Power supply to iPod5 V/500 mA Power Consumption50 W (at operation) 1.5 W (in standby mode) Dimensions (W H D)1

10、18 mm 276 mm 246 mm Mass2.9 kg RadioFans.CN 收音机爱 好者资料库 (No.MB623)1-3 Subwoofer (SP-THL1W) Front speakers (SP-THL1F) Center speaker (SP-THL1C) Surround speakers (SP-THL1S) Designs & specifications are subject to change without notice. Type1-way Bass-Reflex Type (Magnetically-Shielded Type) Speaker16

11、cm cone 1 Power Handling Capacity100 W Impedance4 Frequency Range30 Hz to 1.5 kHz Sound Pressure Level84 dB/Wm Dimensions (W H D)266 mm 270 mm 157 mm Mass2.9 kg TypeFull-Range Bass-Reflex Type (Magnetically-shielded Type) Speaker6.5 cm cone 1 Power Handling Capacity40 W Impedance3 Frequency Range90

12、Hz to 20 kHz Sound Pressure Level77 dB/Wm Dimensions (W H D)100 mm 104 mm 105 mm Mass0.42 kg each TypeFull-Range Bass-Reflex Type (Magnetically-shielded Type) Speaker6.5 cm cone 1 Power Handling Capacity100 W Impedance4 Frequency Range90 Hz to 20 kHz Sound Pressure Level77 dB/Wm Dimensions (W H D)10

13、0 mm 104 mm 105 mm Mass0.42 kg TypeFull-Range Bass-Reflex Type Speaker6.5 cm cone 1 Power Handling Capacity40 W Impedance3 Frequency Range90 Hz to 20 kHz Sound Pressure Level76 dB/Wm Dimensions (W H D)100 mm 104 mm 105 mm Mass0.5 kg each 1-4 (No.MB623) SECTION 1 PRECAUTION 1.1Safety Precautions (1)

14、This design of this product contains special hardware and many circuits and components specially for safety purpos- es. For continued protection, no changes should be made to the original design unless authorized in writing by the manufacturer. Replacement parts must be identical to those used in th

15、e original circuits. Services should be per- formed by qualified personnel only. (2) Alterations of the design or circuitry of the product should not be made. Any design alterations of the product should not be made. Any design alterations or additions will void the manufacturers warranty and will f

16、urther relieve the manufacture of responsibility for personal injury or property damage resulting therefrom. (3) Many electrical and mechanical parts in the products have special safety-related characteristics. These characteris- tics are often not evident from visual inspection nor can the protecti

17、on afforded by them necessarily be obtained by us- ing replacement components rated for higher voltage, watt- age, etc. Replacement parts which have these special safety characteristics are identified in the Parts List of Ser- vice Manual. Electrical components having such features are identified by

18、 shading on the schematics and by ( ) on the Parts List in the Service Manual. The use of a substitute replacement which does not have the same safety charac- teristics as the recommended replacement parts shown in the Parts List of Service Manual may create shock, fire, or other hazards. (4) The le

19、ads in the products are routed and dressed with ties, clamps, tubings, barriers and the like to be separated from live parts, high temperature parts, moving parts and/or sharp edges for the prevention of electric shock and fire hazard. When service is required, the original lead routing and dress sh

20、ould be observed, and it should be confirmed that they have been returned to normal, after reassem- bling. (5) Leakage shock hazard testing After reassembling the product, always perform an isola- tion check on the exposed metal parts of the product (an- tenna terminals, knobs, metal cabinet, screw

21、heads, headphone jack, control shafts, etc.) to be sure the product is safe to operate without danger of electrical shock.Do not use a line isolation transformer during this check. Plug the AC line cord directly into the AC outlet. Using a Leakage Current Tester, measure the leakage current from eac

22、h exposed metal parts of the cabinet, particular- ly any exposed metal part having a return path to the chassis, to a known good earth ground. Any leakage cur- rent must not exceed 0.5mA AC (r.m.s.). Alternate check method Plug the AC line cord directly into the AC outlet. Use an AC voltmeter having

23、, 1,000 per volt or more sensitivity in the following manner. Connect a 1,500 10W resistor paralleled by a 0.15F AC-type capacitor between an ex- posed metal part and a known good earth ground. Measure the AC voltage across the resistor with the AC voltmeter. Move the resistor connection to each exp

24、osed metal part, particularly any exposed metal part having a return path to the chassis, and measure the AC voltage across the resistor. Now, reverse the plug in the AC outlet and repeat each measurement. Voltage measured any must not exceed 0.75 V AC (r.m.s.). This corresponds to 0.5 mA AC (r.m.s.

25、). 1.2Warning (1) This equipment has been designed and manufactured to meet international safety standards. (2) It is the legal responsibility of the repairer to ensure that these safety standards are maintained. (3) Repairs must be made in accordance with the relevant safety standards. (4) It is es

26、sential that safety critical components are replaced by approved parts. (5) If mains voltage selector is provided, check setting for local voltage. 1.3Caution Burrs formed during molding may be left over on some parts of the chassis. Therefore, pay attention to such burrs in the case of pre- forming

27、 repair of this system. 1.4Critical parts for safety In regard with component parts appearing on the silk-screen printed side (parts side) of the PWB diagrams, the parts that are printed over with black such as the resistor ( ), diode ( ) and ICP ( ) or identified by the mark nearby are critical for

28、 safety. When replacing them, be sure to use the parts of the same type and rating as specified by the manufacturer. (This regulation dose not Except the J and C version) Good earth ground Place this probe on each exposed metal part. AC VOLTMETER (Having 1000 ohms/volts, or more sensitivity) 1500 10

29、W 0.15 F AC TYPE (No.MB623)1-5 SECTION 2 SPECIFIC SERVICE INSTRUCTIONS This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS. SECTION 3 DISASSEMBLY 3.1Main body 3.1.1Removing the SIDE PANEL (See Fig.1, 2) (1) Remove the nine screws A attaching the SIDE PANEL. (See Fig.1) (2) Remove the

30、 three screws B attaching the SIDE PANEL. (See Fig.2) Fig.1 Fig.2 A A BB B 1-6 (No.MB623) 3.1.2Removing the FRONT PANEL assembly (See Fig.3, 4) (1) Remove the two screws C attaching the both side of FRONT PANEL assembly. (See Fig.3) (2) Disengage the six hooks a engaged both side of FRONT PANEL asse

31、mbly. (See Fig.3) (3) Disconnect the card wire from MAIN BODY connected to connector CN860 of the FL BOARD assembly. (See Fig.4) Fig.3 Fig.4 C hook a (both side) CN860 (No.MB623)1-7 3.1.3Removing the TOP CHASSIS (See Fig.5 to 8) (1) From the back side of main body, remove the two screws D attaching

32、the TOP CHASSIS. (See Fig.5) (2) From the top side of main body, remove the one screw E attaching the TOP CHASSIS. (See Fig.6) (3) From the right side of main body, remove the four screws F attaching the TOP CHASSIS. (See Fig.7) (4) From the front side of main body, remove the three screws G attachi

33、ng the TOP CHASSIS. (See Fig.8) Fig.5 Fig.6 Fig.7 Fig.8 D D E FF F F G G G 1-8 (No.MB623) 3.1.4Removing the HDMI assembly (See Fig.9, 10) (1) Disconnect the card wire from HDMI assembly connected to connector CN901 of the VIDEO 2 BOARD assembly. (See Fig.9) (2) Remove the two screws H and three scre

34、ws J attaching the HDMI BOARD assembly. (See Fig.10) Fig.9 Fig.10 CN901 H H J J J (No.MB623)1-9 3.1.5Removing the VIDEO 2 BOARD assembly (See Fig.11, 12) (1) Disconnect the card wire from VIDEO 2 BOARD assembly connected to connector CN905 of the MAIN BOARD as- sembly. (See Fig.11) (2) Remove the tw

35、o screws K attaching the VIDEO 2 BOARD assembly. (See Fig.12) Fig.11 Fig.12 3.1.6Removing the HEAT SINK (See Fig.13) (1) Remove the three screws L attaching the HEAT SINK. Fig.13 CN905 K K L 1-10 (No.MB623) 3.1.7Removing the POWER BOARD assembly (See Fig.14 to 17) (1) Remove the four screws M attach

36、ing the POWER BOARD assembly. (See Fig.14) (2) Remove the one screw N attaching the DUMMY BOARD. (See Fig.15) (3) Disconnect the connector wires from POWER BOARD as- sembly connected to connector CN200, CN201 and CN202 of the MAIN BOARD assembly. (See Fig.16) (4) Lift up the POWER BOARD assembly wit

37、h POWER CORD, and then disconnect the POWER CORD from con- nector CN101 of the POWER BOARD assembly. (See Fig.17) Fig.14 Fig.15 Fig.16 Fig.17 M M M M N CN200 CN201 CN202 CN101 (No.MB623)1-11 3.1.8Removing the REAR PANEL (See Fig.18 to 20) (1) Disconnect the connector wire from FAN connected to con-

38、nector CN209 of the MAIN BOARD assembly. (See Fig.18) (2) Remove the two screws P attaching the SPEAKER TER- MINAL. (See Fig.19) (3) Remove the one screw Q attaching the VIDEO 1 jack. (See Fig.19) (4) Remove the one screw R attaching the AUDIO jack. (See Fig.19) (5) Remove the two screws S attaching

39、 the VIDEO jack. (See Fig.19) (6) Remove the two screws T attaching the COMPONENT jack. (See Fig.19) (7) Remove the two screws U attaching the REAR PANEL. (See Fig.19) (8) Disengage three hooks b engaged top and bottom side of REAR PANEL. (See Fig.20) Fig.18 Fig.19 Fig.20 CN209 P Q R S T U U hook b

40、(Top side) (Bottom side) 1-12 (No.MB623) 3.1.9Removing the DSP BOARD assembly (See Fig.21, 22) (1) Disconnect the card wire from DSP BOARD assembly con- nected to connector CN203, CN204 and CN206 of the MAIN BOARD assembly. (See Fig.21) (2) Disconnect the connector wire from DSP BOARD assem- bly con

41、nected to connector CN205 and CN320 of the MAIN BOARD assembly. (See Fig.21) (3) Remove the two screws V attaching the DSP BOARD as- sembly. (See Fig.22) Fig.21 Fig.22 CN203CN204 CN320CN205 CN206 VV (No.MB623)1-13 3.1.10 Removing the MAIN BOARD assembly (See Fig.23, 24) (1) Remove the one screw W at

42、taching the BRACKET BOARD. (See Fig.23) (2) Remove the four screws X attaching the JACK BRACKET. (See Fig.24) (3) Remove the one screw Y attaching the MAIN BOARD as- sembly. (See Fig.24) (4) Remove the four screws Z attaching the MAIN BOARD as- sembly. (See Fig. 24) Fig.23 Fig.24 3.1.11 Removing the

43、 FRONT BOARD assembly (See Fig.25) (1) Remove the eight screws A attaching the FRONT BOARD assembly. Fig.25 W X X Z Z Y Z Z A A A A A A A A 1-14 (No.MB623) SECTION 4 ADJUSTMENT 4.1EXTENTION CABLE When do the operation check or do the confirm SPECIAL MODE, please use the extention cables connect to M

44、ain amp board and Power supply board. 1. EXTTHL1-7P 2 pcs 2. EXTTHL1-6P 1 pc 4.2SPECIAL MODE SECTION 5 TROUBLESHOOTING This service manual does not describe TROUBLESHOOTING. MODE NAMECODEFUNCTION COLD STARTPOWER + STOP + 02 times receive the code when P.OFF condition, COLD SET indicate on FL display

45、 during 3 seconds, after temporaly P.ON operation. And the indication finished, go to P.OFF mode. Then COLD START operation should start by AC plug ON/OFF. ALL FL lightingPOWER + STOP + 1Receive the code when P.ON condition, 1. LED turn on one by one. STANDBY-VIDEO1-VIDEO2-VIDEO3-iPod-USB-ILLUMINATI

46、ON 2. FL lights up all of segment. 3. VOLUME control by remocon (VOL+/VOL-), should be high speed mode until P.OFF. Temprature displayPOWER + STOP + 2POWER and AMP part temprature is displayed Error histryPOWER + STOP + 3It is displayed safety condition. It can use only p.off condition. There are be

47、low kainds. SAFETY REG, SAFETY IPOD, SPEAKER DC DETECT, POWER TEMPERATURE, AMP TEMPERATURE, SAFETY LINE, SAFETY HDMI,S AFETY FAN, SAFETY P.AMP SD,S AFETY P.AMP OTW Version displayPOWER + STOP + 10Receive the code when P.ON condition, 1. Indicate Syscon version Syscon version:SC # $ (#:Sys version,$:

48、Sys ROM correction) 2. Indicate Unit version Unit version:BE %(%:Unit version) 3. Indicate destination and chip select Destination, Chip select:$ % ($:sys destination , %:chip select L1orL11) Each display during 5 seconds temporary. Curret volume value Volume down displayPOWER + STOP + 10Receive the

49、 code when P.ON condition, Indicate volume down cause by safety4. (No.MB623)1-15 (No.MB623) VPT Printed in Japan Victor company of Japan, Limited Audio/Video Systems category 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan 3-1 PARTS LIST * All printed circuit boards and its assemblies are not available as service parts. - Contents - Exploded view of general assembly and parts list (Block No.M1) Electrical parts list (Block No.0104) Packing materials and accessories parts list (Block No.