JVC-RXE112R-hccc-sm维修电路原理图.pdf

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1、SERVICE MANUAL HOME CINEMA CONTROL CENTER No.21085 Apr. 2002 COPYRIGHT 2002 VICTOR COMPANY OF JAPAN, LTD. RX-E112RSL RX-E112RSL/RX-E111RSL Contents Safety precautions -1- 2 Disassembly method -1- 3 Adjustment method -1- 8 Description of major ICs -1- 922 RX-E111RSL Each difference points Source indi

2、cation lens color GRAY SMOKE CLEAR LIGHT GREEN MODEL RX-E112RSL RX-E111RSL Area suffix B - U.K. E - Continental Europe EN - Northern Europe EV - Eastern Europe RM-SRXE111R REMOTE CONTROL HOME CINEMA CONTROL CENTER CONTROL CHANNELVOLUMETV VOL TUNING STOPPAUSE FF/ /REW DIMMERTV/VIDEOVCRMUTING REC PLAY

3、 DOWNUP DVD SLEEPTV DIRECT DVDSTBVCRTV ANALOG/DIGITALTAPEFM BASS+CENTER TESTBASS REAR-L BASS BOOST TREBLE+REAR-R EFFECTTREBLESUBWOOFER RETURNFM MODE ENTER DISPLAY MODE RDS MODE ON/OFF AM 123 456 789 100+10 +100 DVD MENU VCRTVSTB INPUT SURROUND TA/NEWS/INFO PTY SEARCH PTY PTY AUDIO DVD MENU SURROUND

4、SOUNDSOUND+ + + + DVDSTBVCRTVTAPEFM/AM DVDSTBVCRTVTAPEFM/AM HOME CINEMA CONTROL CENTER TV DIRECT MEMORY CONTROL ADJUSTSETTING STANDBY INPUT ANALOG/DIGITAL INPUT ATT MASTER VOLUME SURROUND ON/OFF SURROUND MODE STANDBY/ON PHONES ANALOGPL SUBWFR LFE SLEEPMODETASTTUNEDINFONEWSAUTO MUTING MHZ KHZ VOL AUT

5、O AUTO SR INPUT ATT DSP HP LCR LSSRS LPCM DOLBY D DTS RDS RadioFans.CN 收音机爱 好者资料库 RX-E112RSL/RX-E111RSL 1-2 1. This design of this product contains special hardware and many circuits and components specially for safety purposes. For continued protection, no changes should be made to the original des

6、ign unless authorized in writing by the manufacturer. Replacement parts must be identical to those used in the original circuits. Services should be performed by qualified personnel only. 2. Alterations of the design or circuitry of the product should not be made. Any design alterations of the produ

7、ct 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 c

8、haracteristics. These characteristics are often not evident from visual inspection nor can the protection afforded by them necessarily be obtained by using replacement components rated for higher voltage, wattage, etc. Replacement parts which have these special safety characteristics are identified

9、in the Parts List of Service 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 characteristics as the recommended replacement parts

10、 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 prevention of el

11、ectric 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 re-assembling. 5. Leakage currnet check (Electrical shock hazard testing) After re-assembling the product, always p

12、erform an isolation check on the exposed metal parts of the product (antenna 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. Pl

13、ug the AC line cord directly into the AC outlet. Using a Leakage Current Tester, measure the leakage current from each exposed metal parts of the cabinet, particularly any exposed metal part having a return path to the chassis, to a known good earth ground. Any leakage current must not exceed 0.5mA

14、AC (r.m.s.). Alternate check method Plug the AC line cord directly into the AC outlet. Use an AC voltmeter having, 1,000 ohms per volt or more sensitivity in the following manner. Connect a 1,500 10W resistor paralleled by a 0.15 F AC-type capacitor between an exposed metal part and a known good ear

15、th ground. 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 meausre the AC voltage across the resistor. Now, reverse the plug in the AC outlet and re

16、peat 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.). 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

17、 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. Good earth ground Place this probe on each exposed

18、metal part. AC VOLTMETER (Having 1000 ohms/volts, or more sensitivity) 1500 10W 0.15 F AC TYPE ! Burrs formed during molding may be left over on some parts of the chassis. Therefore, pay attention to such burrs in the case of preforming repair of this system. In regard with component parts appearing

19、 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 safety. (This regulation does not correspond to J and C version.) RadioFans.CN 收音机爱 好者资料库 1-

20、3 RX-E112RSL/RX-E111RSL Remove the four screws A attaching the top cover on both sides of the body. Remove the three screws B on the back of the body. Remove the top cover from behind in the direction of the arrow while pulling both sides outward. 1. 2. 3. Disassembly method Removing the top cover (

21、See Fig.1) Prior to performing the following procedure, remove the top cover. Remove the power cord stopper from the rear panel by moving it in the direction of the arrow. Remove the nineteen screws F & G attaching the each boards to the rear panel. Remove the four screws H attaching the rear panel

22、on the back of the body. 1. 2. 3. Removing the rear panel (See Fig.4) Prior to performing the following procedure, remove the top cover. Cut off the tie band fixing the harness, if needed. Disconnect the card wire from the connector CN411 on the audio board, CN412 on the input board and CN204 on the

23、 power supply board. Disconnect the harness form the connector CN209 on the power supply board. Remove the three screws C attaching the front panel assembly. Remove the screw D attaching the headphone jack board. Remove the four screws E attaching the front panel assembly on the bottom of the body.

24、Detach the front panel assembly toward the front. 1. 2. 3. 4. 5. 6. Removing the front panel assembly (See Fig.2 and 3) Fig.1 Fig.2 Fig.3 Fig.4 A(both sides) B Top cover CC Power supply board Audio board CN411 Main board Tie band GF F F HHHH Power cord stopper Front panel assembly Front panel assemb

25、ly (Bottom side) D(attaching the headphone jack board) Rear panel CN204 CN209 E CN412 Input board E RX-E112RSL/RX-E111RSL 1-4 Prior to performing the following procedure, remove the top cover and rear panel. Disconnect the card wire from the connector CN412 and CN512 on the input board. 1. Removing

26、the input board (See Fig.5) Prior to performing the following procedure, remove the top cover and rear panel. Disconnect the connector CN111 and CN112 on the tuner board and draw out the tuner board in the direction of the arrow (see fig.5). Disconnect the connector CN513 and CN514 on the relay boar

27、d (tuner) and draw out the relay board (tuner) in the direction of the arrow (see fig. 6). 1. 2. Removing the tuner board (See Fig.5 and 6) Prior to performing the following procedure, remove the top cover and rear panel. Disconnect the connector CN681 on the DSP board and draw out the DSP board in

28、the direction of the arrow (see fig.5). Disconnect the connector CN511 on the relay board (DSP) and draw out the relay board (DSP) in the direction of the arrow (see fig.6). 1. 2. Removing the DSP board (See Fig.5 and 6) Removing the audio board (See Fig.7) Prior to performing the following procedur

29、e, remove the top cover, rear panel, input board, tuner board, DSP board and relay boards (tuner & DSP). Remove the harness band1 fixing the harness. Disconnect the card wire from the connector CN411 on the audio board. Disconnect the harness from the connector CN224 /CN225 on the audio board. Disco

30、nnect the harness from the connector CN515, CN516 and CN517 on the main board. Remove the three screws I attaching the audio board. 1. 2. 3. 4. 5. Fig.5 Fig.6 Fig.7 DSP board Input board Tuner board CN111 CN681 CN512 CN513 CN516 CN515 CN517 CN411 CN224 /CN225 Harness band1 CN412 Relay board(tuner) R

31、elay board(DSP) Main board Audio board CN112 CN514 CN511 I 1-5 RX-E112RSL/RX-E111RSL Prior to performing the following procedure, remove the top cover, main board and each amp. board. Remove the four screws R attaching the two brackets to the heat sink and remove the two brackets. 1. Removing the He

32、at sink (See Fig.11) Prior to performing the following procedure, remove the top cover, rear panel, input board, DSP board and relay board (DSP). Disconnect the harness from the connector CN515, CN516 and CN517 on the main board (see fig.7). Remove the harness band1 (see fig.7) and harness band2 fix

33、ing the harness. Disconnect the harness from the connector CN707 on the power supply board . Disconnect the harness from the connector CN202 and CN226/CN227 on the main board . Remove the five screws J and two screws K attaching the main board. Remove the two screws L attaching the heat sink to the

34、main board. Disconnect the connector of each amp. board. 1. 2. 3. 4. 5. 6. 7. Removing the main board with speaker board (See Fig.8 to 10) Prior to performing the following procedure, remove the top cover and main board. Remove the two screws M attaching the Cch amp. board and remove the Cch amp. bo

35、ard. Remove the two screws N attaching the Lch amp. board and remove the Lch amp. board. Remove the two screws O attaching the Rch amp. board and remove the Rch amp. board. Remove the two screws P attaching the SLch amp. board and remove the SLch amp. board. Remove the two screws Q attaching the SRc

36、h amp. board and remove the SRch amp. board. 1. 2. 3. 4. 5. Removing the each amp. board of Cch, Lch, Rch, SLch and SRch (See Fig.11) Fig.8 Fig.9 Fig.11 Fig.10 power supply board Speaker board Speaker board Rch amp. board Lch amp. board Cch amp. board SLch amp. board SRch amp. board Main board (reve

37、rse side) Main board Heat sink Heat sink Bracket Bracket CN226/CN227 CN707 CN705 CN701 CN704 CN703 CN702 J J K L R M(Cch) N(Lch) O(Rch)Q(SRch) P(SLch)R CN202 Harness band2 Main board RX-E112RSL/RX-E111RSL 1-6 Prior to performing the following procedure, remove the top cover. Remove the screw G attac

38、hing the power/fuse board to the rear panel (see fig. 4). Disconnect the harness from the connector CN217 on the power/fuse board (If necessary, cut off the band fixing the harness on the side of the base chassis). Remove the screw U attaching the power/fuse board. Unsolder the power cord and other

39、harness connected to the power/fuse board. 1. 2. 3. 4. Removing the power/fuse board (See Fig.13) Prior to performing the following procedures, remove the top cover. Cut off the tie band. Disconnect the harness from the connector CN217 on the power/fuse board. Disconnect the harness from the connect

40、or CN201 on the power supply board and CN202 on the main board. Remove the one screw J and remove the earth wire. Remove the four screws R attaching the power transformer. 1. 2. 3. 4. 5. Removing the power transformer (See Fig.12 and 13) Prior to performing the following procedure, remove the top co

41、ver. Disconnect the card wire from the connector CN204 on the power supply board. Disconnect the harness from the connector CN201, CN209 and CN707 on the power supply board. Disconnect the harness from the connector CN226 /CN227 on the main board Remove the three screws S attaching the power supply

42、board and pull out the power supply board removing the hook. Unsolder the three harness connected to the power supply board (If necessary, cut off the band fixing the harness on the side of the base chassis). 1. 2. 3. 4. 5. Removing the power supply board (See Fig.12) Fig.12 Fig.13 Power supply boar

43、d CN707 Power transformer Solder Solder (on the reverse side) Solder Power/fuse board Power cord Tie band Tie band Power transformer board PW201 PW203 CN204 CN209 PW202 S S R J (fixing the earth wire) S CN201 U CN217 Hook CN226 /CN227 CN202 1-7 RX-E112RSL/RX-E111RSL Prior to performing the following

44、 procedure, remove the top cover and front panel assembly. Remove the two screws A attaching the power switch board. Remove the eight screws B attaching the system control board. Disconnect the card wire from the connector CN401, CN402 and CN412 on the system control board. Remove the switch buttons

45、 and indicator esc., if needed. 1. 2. 3. 4. Removing the system control board with power switch board (See Fig.1 to 3) Prior to performing the following procedure, remove the top cover and front panel assembly. Remove the screw C attaching the headphone jack board to the front panel assembly. 1. Rem

46、oving the headphone jack board (See Fig.1) Fig.1 Fig.2 Fig.3 System control board System control board (forward side) Switch button Indicator esc. CN401CN412CN402 Headphone jack board Headphone jack board Power switch board Power switch board (forward side) Front panel assembly (inner side) Front pa

47、nel assembly (inner side) BBA C C RX-E112RSL/RX-E111RSL 1-8 Adjustment method 1. Prior to turning the power ON, fully turn the adjusting resistor (VR301(Lch),VR302(Rch) counterclockwise direction and connect the DC voltmeter to the measuring terminal(B451-B452(Lch) , B453-B454(Rch). 2. Set the surro

48、und mode OFF. 3. Adjust the resistor so that the measured value becomes 3.2mV immediately after turning the power ON. 4. When the idling current has been stable (about 30 minutes after the power is turned ON), confirm that the measured value falls within 1.0mV 10mV(2.7mV). Power amplifier section B453-B454 (Rch) Rch amp. board Lch amp. board VR301 (Lch) VR302 (Rch) Heat sink Adjustment of idling current Measurement terminal B451-B452(Lch) , B453-B454(Rch) Adjustment volume VR301(Lch) , VR302(Rch)