Jvc-KDLH-3100-Service-Manual(1) 电路图 维修手册.pdf
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1、SCHEMATIC DIAGRAMS CD RECEIVER No.49838SCH 2003/05 COPYRIGHT 2003 VICTOR COMPANY OF JAPAN, LTD. KD-LH3150,KD-LH3100 KD-LH3150,KD-LH3100 Contents Block diagram Standard schematic diagrams Printed circuit boards 2-1 2-2 2-5,6 Area Suffix KD-LH3150 J - U.S.A. C - CANADA Area Suffix KD-LH3100 J - U.S.A.
2、 SOUND VOLVOL SOURCERF U D ATT KD-LH3150 SOUND VOLVOL SOURCERF U D ATT KD-LH3100 KD-LH3150 KD-LH3100 KD-LH3150J ARSENAL rogo LINE in Line output level WARRANTY2 YEAR1 YEAR1 YEAR 4 V4 V2 V KD-LH3150C KD-LH3100J RadioFans.CN 收音机爱 好者资料库 KD-LH3150,KD-LH3100 ! Burrs formed during molding may be left over
3、 on some parts of the chassis. Therefore, pay attention to such burrs in the case of preforming repair of this system. Safety precaution ! 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 KD-LH3150,KD-LH3100 2-1AB
4、CDEFG 1 2 3 4 5 CN801 IC805 REMOCON IC801 LCD DRIVER LCD MODULE REMOCON KEY0 to KEY2 KEYIN DB0 to DB7 OSC,RES,CS RS,WR,RD SW1 SW2 REST SWITCH LOAD/FEED MOTOR SPINDLE MOTOR PICK UP CN601 SW1 SW2 REST LOAD/FEED+ LOAD/FEED- SPINDLE+ SPINDLE- FOCUS+ FOCUS- TRACKING+ TRACKING- A,B,LD,E,F,VR MD,LD IC601 C
5、D RF IC621 D.SERVO Digital :0) $83$82 $81 0V 6V 4V 2V OFF ON 3.3V Hi- Z FEO TA2157 15 2.2V $84 3.3V 0V 4V 0V $84$86$ A200 3.3V 2.2V 0V 6V 3.2 2V Rough Servo AccelerationServo CLV 0.5 Sec 0.5 Sec Power ON Set Function CD KD-LH3150, KD-LH3100 (No.49838)1-25 3.2.1Feed section 3.2.2Focus section 3.2.3Sp
6、indle section 3.2.4Tracking section Is the voltage output at IC621 pin 40 5V or 0V? Is the wiring for IC621 pin 40? Is 3.3V present at IC681 pin 6? Check CD 8V and 5V. Check the vicinity of IC621. Check the feed motor connection wiring. Is 6V or 2V present at IC681 16 and 17? Check IC681. Is 4V pres
7、ent at both sides of the feed motor? Check the feed motor. YESNO NOYES NOYESNO YES NO YES NO YES YES When the lens is moving: 4V Does the S- search waveform appear at IC681 pins 13 and 14? Check the circuits in the vicinity of IC681 pins 13,14and1. Check the pickup and its connections NO NO NO NO YE
8、S YES YES YES YES Is the disk rotated? Does the RF signal appear at IC601 pin 19? Is the RF waveform at IC601 pin 19 distorted? Proceed to the Tracking section Is 4V present at IC681 pins 15 and 16? Check the spindle motor and its wiring Check the circuits in the vicinity of IC601 pin 19 or the pick
9、up Is 4V present at IC621 pins 41 ? Check the circuits in the vicinity of IC621 or IC621 Check the vicinity of IC681. NO YES YESYES When the disc is rotated at first: Approx. 1.2V Is the tracking error signal output at IC601 11? Check IC621. Check the circuit in the vicinity of IC601 pins 2 to 7. Ch
10、eck the pickup and its connections KD-LH3150, KD-LH3100 1-26 (No.49838) 3.3 Maintenance of laser pickup (1) Cleaning the pick up lens Before you replace the pick up, please try to clean the lens with a alcohol soaked cotton swab. (2) Life of the laser diode When the life of the laser diode has expir
11、ed, the following symptoms will appear. The level of RF output (EFM output:ampli tude of eye pattern) will be low. (3) Semi-fixed resistor on the APC PC board The semi-fixed resistor on the APC printed circuit board which is attached to the pickup is used to adjust the laser power.Since this adjustm
12、ent should be performed to match the characteristics of the whole optical block, do not touch the semi-fixed resistor. If the laser power is lower than the specified value,the laser diode is almost worn out, and the laser pickup should be replaced. If the semi-fixed resistor is adjusted while the pi
13、ckup is functioning normally,the la- ser pickup may be damaged due to excessive current. 3.4 Replacement of laser pickup Is RF output 1.3 0.4Vp- p? YES NO O.K Replace it. Turn of the power switch and, disconnect the power cord. Replace the pickup with a normal one. (Refer to Pickup Removal on the pr
14、evious page) Plug the power cord in, and turn the power on. At this time, check that the laser emits for about 3 seconds and the objective lens moves up and down. Note: Do not observe the laser beam directly. Play a disc. Check the eye- pattern at RF test point. Finish. KD-LH3150, KD-LH3100 (No.4983
15、8)1-27 SECTION 4 Description of major ICs 4.1 BA3220FV-X (IC281, IC301) : Line out amplifier Pin layout Block diagram 17 8 3220 14 +- + - - + +- - - + + REFR REFL FILTER 8910 111213 14 1234567 INRNFRFILNFLCL+ Vcc INL CL-LGNDOUTLOUTRRGNDCR- CR+ KD-LH3150, KD-LH3100 1-28 (No.49838) 4.2 BA5830FP-X (IC6
16、81) : Power driver Pin layout H means detaching 50NC-Not use 51 to 53NC-Not use 54EQ-CLKOClock output for e-EQ IC 55EQ-DAOData output for e-EQ IC 56EQ-LAOLatch output for e-EQ IC 57 to 59NC-Not use 60RDS DAINot use 61SD/STIStation detector or stereo indicator input; H means a station is there, L mea
17、ns the program is stereo. 62AFCKONot use 63SEEK/STOPOAuto seek and stop selecting output; H means seeking, L means receiving. 64CF SELOWide H=FM, L=AM 66PLL-CEOCE output for PLL IC 67PLL-DOOData output for PLL IC 68PLL-CLKOClock output for PLL IC 69PLL-DIIData input from PLL IC 70TEL-MUTINGITelephon
18、e muting detection input; Active level can be selected H or L in PSM 71DIM-OUTODimmer detector output 72VSS-Ground 73DIM-INIDimmer detector input L=dimmer on 74PS1IPower save1 L=ACC off 75POWEROPower on/off control output H=power on 76CD-ON-Not use 77MUTINGOMuting output L=muting on 78CD MUTINGICD m
19、ute input L=mute on 79CD RESETOCD reset control out H=reset on 80LINE SELIFeature selection H: line input (U57:not support), L: support 81VDD-Power supply 82NC-Not use 83VOL-DAOData output for e-vol IC 84VOL-CLKOClock output for e-vol IC 85WOOFER SELIFeature selection H:support L:Not support 86SUB M
20、UTINGOMuting control output for subwoofer 87LPF1OLPF control1 88LPF2OLPF control2 89STAGE2IFeature selection H: R or Do L: J or U 90STAGE1IFeature selection H: R or U L: J or Do 91 to 93NC-Not use 94TESTFor rewriting flash memory 95 to 100NC-Not use Pin No.SymbolI/OFunction (No.49838) AV & MULTIMEDI
21、A COMPANY MOBILE ENTERTAINMENT CATEGORY 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan VICTOR COMPANY OF JAPAN, LIMITED WPC Printed in Japan KD-LH3150, KD-LH3100 KD-LH3150,KD-LH3100 No. 498383-1 PARTS LIST * All printed circuit boards and its assemblies are not available as service parts. -
22、 Contents - Exploded view of general assembly and parts list (Block No.M1) CD mechanism assembly and parts list (Block No.MB) Electrical parts list (Block No.0103) Packing materials and accessories parts list (Block No.M3) KD-LH3150,KD-LH3100 3-2 3-4 3-6 3-14 Area suffix J - U.S.A. KD-LH3100 Area su
23、ffix J - U.S.A. C - Canada KD-LH3150 KD-LH3150,KD-LH3100 3-2 Exploded view of general assembly and parts list Front board C C Block No.M MM1 A B Sub board LCD1 Main board A B 2 8174 82 75 10 79 10 76 78 80 10 77 6 5 65 15 14 12 26 1929 21 32 25 20 15 11 8 8 9 9 4 56 67 64 72 59 60 57 61 58 52 63 62
24、3 54 49 35 33 39 42 43 38 40 44 48 51 50 4734 36 37 41 54 53 53 18 30 17 31 23 28 22 2427 53 45 46 55 16 66 66 1 7 13 7 7 13 13 68 73 71 69 71 70 KD-LH3150,KD-LH3100 3-3 General assembly Block No. M1MM Symbol No.Part No.Part NameDescription Local 1-CD MECHA 2GE10043-210ATOP CHASSIS 3GE40135-001AEART
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