JVC-RXF10S-htr-sm维修电路原理图.pdf

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1、SERVICE MANUAL COPYRIGHT 2004 Victor Company of Japan, Limited No.MB264 2004/6 HOME THEATER RECEIVER MB26420046 RX-F10S TABLE OF CONTENTS 1PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 2

2、SPECIFIC SERVICE INSTRUCTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5 3DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

3、4ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-18 5TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4、. . . 1-19 Area suffix J - U.S.A. C - Canada RadioFans.CN 收音机爱 好者资料库 1-2 (No.MB264) SPECIFICATION *1: Corresponding to Linear PCM, Dolby Digital, and DTS (with sampling frequency -32 kHz, 44.1 kHz, 48 kHz). Designs & specifications are subject to change without notice. Amplifier Output PowerAt stere

5、o op- eration Front channels100 W per channel, min. RMS, both channels driven into 6 at 40 Hz to 20 kHz with no more than 0.8% total harmonic distortion. At surround operation Front channels100 W per channel, min. RMS, driven into 6 at 1 kHz with no more than 0.8% total harmonic distortion. Center c

6、hannel100 W, min. RMS, driven into 6 at 1 kHz, with no more than 0.8% total harmonic distortion. Surround channels100 W per channel, min. RMS, driven into 6 at 1 kHz, with no more than 0.8% total harmonic distortion. Surround back channel100 W, min. RMS, driven into 6 at 1 kHz, with no more than 0.8

7、% total harmonic distortion. Audio Audio Input Sensitivity/Imped- ance DVR/DVD (DVD MULTI), VCR, DBS, TV:330 mV/47 k Audio Input (DIG- ITAL IN)*1 CoaxialDIGITAL IN 1(DVR/DVD):0.5 V(p-p)/75 OpticalDIGITAL IN 2(DBS), 3(VCR): -21 dBm to -15 dBm (660 nm 30 nm) Audio Output LevelDVR, VCR, MONITOR OUT:330

8、 mV Signal-to-Noise Ratio (66 IHF/ DIN) 80 dB/62 dB Frequency Response (6 )20 Hz to 20 kHz (1 dB) Bass Boost+4 dB 1 dB at 100 Hz Equalization (at DSP operation)Center frequency:63 Hz, 250 Hz, 1 kHz, 4 kHz, 16 kHz Control range:8 dB Video Video Input Sensitivity/Imped- ance Composite video:DVR/DVD, V

9、CR, DBS1 V(p-p)/75 S-video:DVR/DVD, VCR, DBSY (luminance):1 V(p-p)/75 C (chrominance, burst):0.286 V(p-p)/75 Component:DVR/DVD, VCRY (luminance):1 V(p-p)/75 PB, PR:0.7 V(p-p)/75 Video Output Level/ImpedanceComposite video:DVR, VCR, MONITOR OUT 1 V(p-p)/75 S-video:DVR, VCR, MONITOR OUTY (luminance):1

10、 V(p-p)/75 C (chrominance, burst):0.286 V(p-p)/75 Component:MONITOR OUTY (luminance):1 V(p-p)/75 PB, PR:0.7 V(p-p)/75 SynchronizationNegative FM tuner (IHF) Tuning Range87.5 MHz to 108.0 MHz Usable SensitivityMonaura:12.8 dBf (1.2 V/75 ) 50 dB Quieting SensitivityMonaural:16.0 dBf (1.7 V/75 ) Stereo

11、:37.5 dBf (20.5 V/75 ) Stereo Separation at REC OUT35 dB at 1 kHz AM tuner Tuning Range530 kHz to 1 710 kHz General Power RequirementsAC 120 V , 60 Hz Power Consumption120 W/160 VA (at operation) 2 W (in standby mode) Dimensions (W H D)435 mm 70 mm 329.5 mm (17 3/16 inches 2 13/16 inches 13 inches)

12、Mass6.3 kg (13.9 lbs) RadioFans.CN 收音机爱 好者资料库 (No.MB264)1-3 SECTION 1 PRECAUTION 1.1Safety Precautions (1) 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 desig

13、n unless authorized in writing by the manufacturer. Replacement parts must be identical to those used in the 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 prod

14、uct should not be made. Any design alterations or additions will void the manufacturers warranty and will further 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

15、 characteristics. These characteris- tics are often not evident from visual inspection nor can the protection 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 ide

16、ntified in the Parts List of Ser- vice Manual. Electrical components having such features are identified by 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 repla

17、cement parts shown in the Parts List of Service Manual may create shock, fire, or other hazards. (4) The leads 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 pre

18、vention of electric shock and fire hazard. When service is required, the original lead routing and dress should 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 iso

19、la- tion check on the exposed metal parts of the product (an- tenna terminals, knobs, metal cabinet, screw 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

20、line cord directly into the AC outlet. Using a Leakage Current Tester, measure the leakage current from each 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.

21、m.s.). Alternate check method Plug the AC line cord directly into the AC outlet. Use an AC voltmeter having, 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.

22、 Measure the AC voltage across the resistor with the AC voltmeter. Move the resistor connection to each exposed 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

23、measurement. Voltage measured any must not exceed 0.75 V AC (r.m.s.). This corresponds to 0.5 mA AC (r.m.s.). 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 standa

24、rds are maintained. (3) Repairs must be made in accordance with the relevant safety standards. (4) It is essential 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

25、 left over on some parts of the chassis. Therefore, pay attention to such burrs in the case of pre- forming 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 w

26、ith black such as the resistor ( ), diode ( ) and ICP ( ) or identified by the mark nearby are critical for 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 Plac

27、e this probe on each exposed metal part. AC VOLTMETER (Having 1000 ohms/volts, or more sensitivity) 1500 10W 0.15 F AC TYPE 1-4 (No.MB264) 1.5Importance administering point on the safety Caution: For continued protection against risk of fire, replace only with same type 4 A/125 V for F205, 2 A/125 V

28、 for F202 and F203. This symbol specifies the type of fast operating fuse. Precaution: Pour la protection continue contre les risques dincendie, remplacer uniquement par le meme type: fusible 4 A/125 V pour le F205, 2 A/125 V pour le F202 et F203. Ce symbole specifie le type de fusible a action rapi

29、de. Secondary boardPrimary board F202 2A-125V 2A-125V F203 4A-125V F205 (No.MB264)1-5 SECTION 2 SPECIFIC SERVICE INSTRUCTIONS This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS. 1-6 (No.MB264) SECTION 3 DISASSEMBLY 3.1Removing the top cover (See Figs.1 to 3) (1) From the both sides

30、of the main body, remove the two screws A attaching the top cover. (See Figs.1 and 2.) (2) From the back side of the main body, remove the five screws B attaching the top cover. (See Fig.3.) (3) Lift the rear section of the top cover in the direction of the arrow while extending the lower sections o

31、f the top cover and remove the top cover from the main body. (See Figs.1 and 2.) Fig.1 Fig.2 Fig.3 A Top cover A Top cover Top coverBB (No.MB264)1-7 3.2Removing the front panel assembly (See Figs.4 and 5) Remove the top cover. (1) From the top side of the main body, remove the divider. (See Fig.4.)

32、Reference: After attaching the front panel assembly, attach the divid- er as before. (See Fig.4.) (2) Disconnect the wire from the connector CN421 on the con- nection 2 board. (See Fig.4.) (3) Remove the tie band and wire clamps. (See Fig.4.) (4) Disconnect the wire from the connector CN412 on the s

33、ec- ondary board. (See Fig.4.) Reference: After connecting the wire to the connector, bundle the wires with the other wires using the wire clamps and new tie band as before. (See Fig.4.) (5) Remove the screw C and two screws C attaching the front panel assembly. (See Fig.4.) Reference: When attachin

34、g the screws C, attach the earth wires with them. (See Fig.4.) (6) From the bottom side of the main body, remove the four screws D attaching the front panel assembly. (See Fig.5.) (7) Release the two claws a and claw b, remove the front panel assembly in the direction of the arrow. (See Fig.5.) Fig.

35、4 Fig.5 3.3Removing the rear panel (See Fig.6) Remove the top cover. (1) From the back side of the main body, remove the strain re- lief attaching the power cord in the direction of the arrow. (2) Remove the twenty-five screws E attaching the rear panel. (3) Release the engagement sections c and rem

36、ove the rear panel from the main body. Fig.6 Secondary board Earth wire Earth wire C CN412 DividerWire clamps Tie band Front panel assembly CN421 Connection 2 board Wire CC a a Front panel assembly D b c c Strain relief Rear panel Power cord E E 1-8 (No.MB264) 3.4Removing the tuner (See Figs.7 and 8

37、) Remove the top cover. (1) From the top side of the main body, disconnect the card wire from the connector CN1 on the tuner. (See Fig.7.) (2) From the back side of the main body, remove the two screws F attaching the tuner. (See Fig.8.) (3) Take out the tuner from the main body. 3.5Removing the vid

38、eo/audio board (See Figs.7 and 8) Remove the top cover. (1) From the top side of the main body, remove the divider. Reference: When reassembly, attach the divider as before. (2) From the back side of the main body, remove the four screws G attaching the video/audio board. (See Fig.8.) (3) From the t

39、op side of the main body, take out the video/au- dio board from the main body and disconnect the card wire from the connector CN532 on the forward side of the video/ audio board. (See Fig.7.) Reference: Remove the divider as required. (See Fig.7.) 3.6Removing the DSP board (See Figs.8 and 9) Remove

40、the top cover. (1) From the back side of the main body, remove the four screws H attaching the DSP board. (See Fig.8.) (2) From the top side of the main body, remove the tie bands bundling the wires. (See Fig.9.) Reference: After reassembling, bundle the wires with the new tie bands as before. (See

41、Fig.9.) (3) From the forward side of the DSP board, release the lock d of the connector CN601 in the direction of the arrow and disconnect the DSP board from the connection 1 board. (See Fig.9.) Note: When releasing the lock d of the connector CN601, take care not to break the lock. (See Fig.9.) (4)

42、 From the forward side of the DSP board, disconnect the card wire from the connector CN602. (See Fig.9.) Fig.7 Fig.8 Fig.9 Divider Card wire CN532 Video Audio board CN1 Tuner Video/Audio DSP boardTuner H G GF Tie band Wires DSP board CN601 d DSP board Connection 1 board CN602 (No.MB264)1-9 3.7Removi

43、ng the compu board (See Fig.10) Remove the top cover. (1) Remove the screws J attaching the compu board. (2) Disconnect the wire from the connector CN565 on the com- pu board. (3) Take out the compu board from the main body. Fig.10 3.8Removing the primary board (See Fig.11) Remove the top cover and

44、video/audio board. (1) From the top side of the main body, remove the divider. (2) Disconnect the wire from the connector CN208 on the sec- ondary board. (3) Disconnect the wire and power cord from the connectors (CN202, CN203) on the primary board. (4) Remove the four screws K attaching the primary

45、 board. (5) Take out the primary board from the main body. Fig.11 Compu board CN565 J Divider K KWire Wire CN203 CN202 CN208 Secondary board Power cord Primary board 1-10 (No.MB264) 3.9Removing the power transformer (See Fig.12) Remove the top cover. (1) From the top side of the main body, remove th

46、e tie bands and wire clamp bundling the wires. Reference: After reassembling, bundle the wires with the new tie bands and wire clamp as before. (2) Disconnect the wire from the connector CN201 on the sec- ondary board. (3) Disconnect the wire from the connector CN202 on the pri- mary board. (4) Disc

47、onnect the wire from the connector CN702 on the main amplifier board. (5) Remove the four screws L attaching the power transform- er. (6) Take out the power transformer from the main body. Fig.12 3.10 Removing the secondary board (See Fig.13) Remove the top cover. (1) From the top side of the main b

48、ody, remove the divider. Reference: When reassembly, attach the divider as before. (2) Remove the tie bands bundling the wires. Reference: After reassembling, bundle the wires with the new tie bands as before. (3) Disconnect the wires from the connectors (CN201, CN207, CN208, CN211, CN216, CN261, CN

49、412, CN510, CN520, CN721) on the secondary board. Reference: Disconnect the wire from the connector CN702 on the main amplifier board as required. (4) Remove the four screws M attaching the secondary board. (5) Take out the secondary board from the main body. Reference: When attaching the secondary board, insert the section e of the secondary board in the hole of the heat sink and attach the secondary board. Fig.13 Main amplifier board Wires Wire clamp Power transformer Tie bands Secondary boar