Jvc-KDG-111-Service-Manual(1) 电路图 维修手册.pdf

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1、SERVICE MANUAL COPYRIGHT 2005 Victor Company of Japan, Limited No.MA125 2005/2 CD RECEIVER MA12520052 KD-G111,KD-G117 TABLE OF CONTENTS 1PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 2SPEC

2、IFIC SERVICE INSTRUCTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6 3DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7 4ADJ

3、USTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-25 5TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4、. 1-26 Area suffix E - Southern Europe EX - Northern Europe EY - Eastern Europe EU - Turkey KD-G111 Area suffix EE - Russian Federation KD-G117 KD-G111 KD-G117 KD-G111KD-G117 Maximum Power Output Continuous Power Output FM Band Cover 17 W19 W 45 W50 W 87.5 MHz to 108.0 MHz FM1/FM2 : 87.5 MHz to 108.

5、0 MHz FM3 : 65.00 MHz to 74.00 MHz RadioFans.CN 收音机爱 好者资料库 1-2 (No.MA125) SPECIFICATION Design and specifications are subject to change without notice. AUDIO AMPLIFIER SECTION Maximum Power OutputFrontKD-G11145 W per channel KD-G11750 W per channel RearKD-G11145 W per channel KD-G11750 W per channel

6、 Continuous Power Output (RMS) FrontKD-G11117 W per channel into 4 , 40 Hz to 20 000 Hz at no more than 0.8% total harmonic distortion. KD-G11719 W per channel into 4 , 40 Hz to 20 000 Hz at no more than 0.8% total harmonic distortion. RearKD-G11117 W per channel into 4 , 40 Hz to 20 000 Hz at no mo

7、re than 0.8% total harmonic distortion. KD-G11719 W per channel into 4 , 40 Hz to 20 000 Hz at no more than 0.8% total harmonic distortion. Load Impedance4 (4 to 8 allowance) Tone Control RangeBass10 dB at 100 Hz Treble10 dB at 10 kHz Frequency Response40 Hz to 20 000 Hz Signal-to-Noise Ratio70 dB L

8、ine-Out Level/Impedance2.0 V/20 k load (full scale) Output Impedance1 k TUNER SECTION Frequency RangeFMKD-G11187.5 MHz to 108.0 MHz KD-G117FM1/FM2:87.5 MHz to 108.0 MHz FM3:65.00 MHz to 74.00 MHz AM(MW) 522 kHz to 1 620 kHz (LW) 144 kHz to 279 kHz FM TunerUsable Sensitivity11.3 dBf (1.0 V/75 ) 50 dB

9、 Quieting Sensitivity16.3 dBf (1.8 V/75 ) Alternate Channel Selectivity (400 kHz) 65 dB Frequency Response40 Hz to 15 000 Hz Stereo Separation30 dB Capture Ratio1.5 dB MW TunerSensitivity20 V Selectivity35 dB LW TunerSelectivity50 V CD PLAYER SECTION TypeCompact disc player Signal Detection SystemNo

10、n-contact optical pickup (semiconductor laser) Number of channels2 channels (stereo) Frequency Response5 Hz to 20 000 Hz Dynamic Range96 dB Signal-to-Noise Ratio98 dB Wow and FlutterLess than measurable limit GENERAL Power RequirementOperating VoltageDC 14.4 V (11 V to 16 V allowance) Grounding Syst

11、emNegative ground Allowable Operating Temperature0C to +40C Dimensions (W H D)Installation Size (approx.)182 mm 52 mm 150 mm Panel Size (approx.)188 mm 58 mm 11 mm Mass (approx.)1.3 kg (excluding accessories) RadioFans.CN 收音机爱 好者资料库 (No.MA125)1-3 SECTION 1 PRECAUTIONS 1.1Safety Precautions ! Burrs f

12、ormed 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. ! Please use enough caution not to see the beam directly or touch it in case of an adjustment or operation check. RadioFans.CN 收音机爱 好者资料库 1-4 (N

13、o.MA125) 1.2Preventing static electricity Electrostatic discharge (ESD), which occurs when static electricity stored in the body, fabric, etc. is discharged, can destroy the laser diode in the traverse unit (optical pickup). Take care to prevent this when performing repairs. 1.2.1 Grounding to preve

14、nt damage by static electricity Static electricity in the work area can destroy the optical pickup (laser diode) in devices such as CD players. Be careful to use proper grounding in the area where repairs are being performed. (1) Ground the workbench Ground the workbench by laying conductive materia

15、l (such as a conductive sheet) or an iron plate over it before placing the traverse unit (optical pickup) on it. (2) Ground yourself Use an anti-static wrist strap to release any static electricity built up in your body. (3) Handling the optical pickup In order to maintain quality during transport a

16、nd before installation, both sides of the laser diode on the replacement optical pickup are shorted. After replacement, return the shorted parts to their original condition. (Refer to the text.) Do not use a tester to check the condition of the laser diode in the optical pickup. The testers internal

17、 power source can easily destroy the laser diode. 1.3Handling the traverse unit (optical pickup) (1) Do not subject the traverse unit (optical pickup) to strong shocks, as it is a sensitive, complex unit. (2) Cut off the shorted part of the flexible cable using nippers, etc. after replacing the opti

18、cal pickup. For specific details, refer to the replacement procedure in the text. Remove the anti-static pin when replacing the traverse unit. Be careful not to take too long a time when attaching it to the connector. (3) Handle the flexible cable carefully as it may break when subjected to strong f

19、orce. (4) It is not possible to adjust the semi-fixed resistor that adjusts the laser power. Do not turn it. 1.4Attention when traverse unit is decomposed *Please refer to Disassembly method in the text for the CD pickup unit. Apply solder to the short land before the flexible wire is disconnected f

20、rom the connector on the CD pickup unit. (If the flexible wire is disconnected without applying solder, the CD pickup may be destroyed by static electricity.) In the assembly, be sure to remove solder from the short land after connecting the flexible wire. 1M (caption) Anti-static wrist strap Conduc

21、tive material (conductive sheet) or iron plate Pickup Short-circuit point (Soldering) Flexible wire (No.MA125)1-5 1.5Important for laser products 1.CLASS 1 LASER PRODUCT 2.DANGER : Invisible laser radiation when open and inter lock failed or defeated. Avoid direct exposure to beam. 3.CAUTION : There

22、 are no serviceable parts inside the Laser Unit. Do not disassemble the Laser Unit. Replace the complete Laser Unit if it malfunctions. 4.CAUTION : The CD,MD and DVD player uses invisible laser radiation and is equipped with safety switches which prevent emission of radiation when the drawer is open

23、 and the safety interlocks have failed or are defeated. It is dangerous to defeat the safety switches. 5.CAUTION : If safety switches malfunction, the laser is able to function. 6.CAUTION : Use of controls, adjustments or performance of procedures other than those specified here in may result in haz

24、ardous radiation exposure. REPRODUCTION AND POSITION OF LABELS ! Please use enough caution not to see the beam directly or touch it in case of an adjustment or operation check. WARNING LABEL CAUTION : Visible and Invisible laser radiation when open and interlock failed or defeated. AVOID DIRECT EXPO

25、SURE TO BEAM. (e) VARNING : Synlig och osynling laserstrlning nr den ppnas och sprren r urkopplad. Betrakta ej strlen. (s) VARO : Avattaessa ja suojalukitus ohitettuna tai viallisena olet alttiina nkyvlle ja nkymttmlle lasersteilylle. Vlt steen kohdistumista suoraan itseesi. (f) ADVARSEL : Synlig og

26、 usynlig laserstrling nr maskinen er ben eller interlocken fejeler. Undg direkte eksponering til strling. (d) CLASS 1 LASER PRODUCT 1-6 (No.MA125) SECTION 2 SPECIFIC SERVICE INSTRUCTIONS 2.1HOW TO IDENTIFY MODELS 2.1.1NAME PLATE 2.1.2FRONT PANEL BACK SIDE (except KD-G117) 2.1.3FRONT CHASSIS ASSEMBLY

27、 (except KD-G117) RED YELLOW BLACK BLUE/WHITE LINE GREEN GREEN/BLACK LINE PURPLE PURPLE/BLACK LINE WHITE WHITE/BLACK LINE GRAY GRAY/BLACK LINE ACCESSORY BATTERY GROUND REMOTE MAX 200mA SPEAKER RL + SPEAKER RL - SPEAKER RR + SPREAKER RR - SPEAKER FL + SPEAKER FL - SPEAKER FR + SPEAKER FR - : : : : :

28、: : : : : : : Victor Company of Japan, Limited for CAR USE CD RECEIVER SERIAL NO. MODEL NO. KD-G111 DC 12VNEGATIVE GROUND DESTINATIONE2 24e XXXXXX Discernment sign (as same as KD-G117) Screw color E series : SILVER E2 series : BLACK Screw ScrewScrew Panel stopper color E series : SILVER E2 series :

29、BLACK Panel stopper (No.MA125)1-7 SECTION 3 DISASSEMBLY 3.1Main body section 3.1.1Removing the front panel assembly (See Fig.1) (1) Push the detach button in the lower right part of the front panel assembly and remove the front panel assembly. Fig.1 3.1.2Removing the bottom cover (See Fig.2) (1) Tur

30、n the main body up side down. (2) Insert a screwdriver under the joints to release the two joints a on the left side, two joints b on the right side and joint c on the back side of the main body, then remove the bottom cover from the main body. Note: When releasing the joints using a screwdriver, do

31、 not damage the main board. Fig.2 3.1.3Removing the front chassis assembly (See Fig.3) Remove the front panel assembly and bottom cover. (1) Remove the two screws A on the both sides of the main body. (2) Release the two joints d and two joints e on the both sides of the main body, then remove the f

32、ront chassis assembly toward the front. Fig.3 Front panel assembly Detach button Bottom cover Joint b Joint b Joint c Joint a Joint a Joint d Front chassis assembly A Joint e Joint dJoint e 1-8 (No.MA125) 3.1.4Removing the side panel (See Fig.4) Reference: Remove the front panel assembly as required

33、. (1) Remove the screw B and two screws C attaching the side panel on the left side of the main body. (2) Remove the side panel from the main body. Fig.4 3.1.5Removing the rear bracket (See Fig.5) Remove the bottom cover. (1) For KD-G111, remove the three screws D, three screws E and two screws F at

34、taching the rear bracket on the back side of the main body. (2) For KD-G117, remove the three screws D, screw E and two screws F attaching the rear bracket on the back side of the main body. (3) Remove the rear bracket. 3.1.6Removing the main board (See Figs.5 and 6) Remove the front panel assembly,

35、 bottom cover and side pan- el. Reference: Remove the front chassis assembly as required. (1) Remove the three screws D attaching the rear bracket on the back side of the main body. (See Fig.5.) (2) Remove the two screws G attaching the main board. (See Fig.6.) (3) Disconnect the connector CN501 on

36、the main board from the main body and take out the main board with the rear bracket. (See Fig.6.) Reference: Remove the rear bracket from the main body as required. (See 3.1.5 Removing the rear bracket.) Fig.5 Fig.6 Side panel CBC EF DD E Rear bracket F DD E Rear bracket FF ( KD-G111 ) ( KD-G117 ) M

37、ain board G G CN501 Rear bracket (No.MA125)1-9 3.1.7Removing the CD mechanism assembly (See Fig. 7) Remove the front panel assembly, bottom cover, side panel, rear bracket and main board. Reference: Remove the front chassis assembly as required. (1) Remove the three screws H attaching the CD mechani

38、sm assembly on the top chassis. (2) Take out the CD mechanism assembly. Fig.7 3.1.8Removing the front board (See Figs.8 to 10) Remove the front panel assembly. (1) Remove the five screws J on the back side of the front pan- el assembly. (See Fig.8.) (2) Release the twelve joints f and remove the rea

39、r cover. (See Fig.9.) (3) Release the joint g and take out the front board from the front panel assembly. (See Fig.10.) Fig.8 Fig.9 Fig.10 H H CD mechanism assembly Top chassis J JJ Joints f Joints f Joints fJoints f Rear cover Front board Joint g Front panel assembly 1-10 (No.MA125) 3.2CD Mechanism

40、 Assembly 3.2.1Removing the top cover (See Figs.1 and 2) (1) Remove the two screws A on the both side of the body. (2) Lift the front side of the top cover and move the top cover backward to release the two joints a. Fig.1 Fig.2 A A A Joints aTop cover Joints a Top cover (No.MA125)1-11 3.2.2Removing

41、 the connector board (See Figs.3 to 5) CAUTION: Before disconnecting the flexible wire from the pickup, solder the short-circuit point on the pickup. No observance of this in- struction may cause damage of the pickup. (1) Remove the screw B fixing the connector board. (2) Solder the short-circuit po

42、int on the connector board. (3) Disconnect the flexible wire from the pickup. (4) Move the connector board in the direction of the arrow to release the two joints b. (5) Unsolder the wire on the connector board if necessary. CAUTION: Unsolder the short-circuit point after reassembling. Fig.3 Fig.4 F

43、ig.5 B Connector board PickupShort-circuit point Joints b Wires Pickup Short-circuit point (Soldering) Flexible wire B Flexible wire Connector board Frame 1-12 (No.MA125) 3.2.3Removing the DET switch (See Figs.6 and 7) (1) Extend the two tabs c of the feed sw. holder and pull out the switch. (2) Uns

44、older the DET switch wire if necessary. Fig.6 Fig.7 Connector board DET switch Pickup DET switch Tab c Tab c DET switch wire Feed sw. holder (No.MA125)1-13 3.2.4Removing the chassis unit (See Figs.8 and 9) Prior to performing the following procedure, remove the top cover and connector board. (1) Rem

45、ove the two suspension springs (L) and (R) attaching the chassis unit to the frame. CAUTION: The shape of the suspension spring (L) and (R) are dif- ferent. Handle them with care. When reassembling, make sure that the three shafts on the underside of the chassis unit are inserted to the dampers cert

46、ainly. Fig.8 Fig.9 Suspension spring (L) Suspension spring (L) Suspension spring (R) Suspension spring (R) Chassis unit Frame Chassis unit Frame Shafts Shaft Damper Damper Damper 1-14 (No.MA125) 3.2.5Removing the clamper assembly (See Figs.10 and 11) Prior to performing the following procedure, remo

47、ve the top cover. (1) Remove the clamper arm spring. (2) Move the clamper assembly in the direction of the arrow to release the two joints d. Fig.10 Fig.11 Clamper arm spring Chassis rivet assembly Joint d Joint d Clamper assembly Clamper arm spring Clamper assembly Joint d Joint d Chassis rivet ass

48、embly (No.MA125)1-15 3.2.6Removing the loading / feed motor assembly (See Figs.12 and 13) Prior to performing the following procedure, remove the top cover, connector board and chassis unit. (1) Remove the screw C and move the loading / feed motor assembly in the direction of the arrow to remove it

49、from the chassis rivet assembly. (2) Disconnect the wire from the loading / feed motor assembly if necessary. CAUTION: When reassembling, connect the wire from the loading / feed motor assembly to the flame as shown in Fig.12. Fig.12 Fig.13 Loading / feed motor assembly Loading / feed motor assembly C 1-16 (No.MA125) 3.2.7Removing the pickup unit (See Figs.14 to 18) Prior to performing the following procedure, remove the top cover