Goldstar-FFH292A-cs-sm 电路图 维修手册.pdf

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1、4 SERVICING PRECAUTIONS NOTES REGARDING HANDLING OF THE PICK-UP 1. Notes for transport and storage 1) The pick-up should always be left in its conductive bag until immediately prior to use. 2) The pick-up should never be subjected to external pressure or impact. 2. Repair notes 1) The pick-up incorp

2、orates a strong magnet, and so should never be brought close to magnetic materials. 2) The pick-up should always be handled correctly and carefully, taking care to avoid external pressure and impact. If it is subjected to strong pressure or impact, the result may be an operational malfunction and/or

3、 damage to the printed-circuit board. 3) Each and every pick-up is already individually adjusted to a high degree of precision, and for that reason the adjustment point and installation screws should absolutely never be touched. 4) Laser beams may damage the eyes! Absolutely never permit laser beams

4、 to enter the eyes! Also NEVER switch ON the power to the laser output part (lens, etc.) of the pick-up if it is damaged. 5) Cleaning the lens surface If there is dust on the lens surface, the dust should be cleaned away by using an air bush (such as used for camera lens). The lens is held by a deli

5、cate spring. When cleaning the lens surface, therefore, a cotton swab should be used, taking care not to distort this. 6) Never attempt to disassemble the pick-up. Spring by excess pressure. If the lens is extremely dirty, apply isopropyl alcohol to the cotton swab. (Do not use any other liquid clea

6、ners, because they will damage the lens.) Take care not to use too much of this alcohol on the swab, and do not allow the alcohol to get inside the pick-up. Storage in conductive bag Drop impact NEVER look directly at the laser beam, and don t let contact fingers or other exposed skin. Magnet How to

7、 hold the pick-up Pressure Pressure Cotton swab Conductive Sheet RadioFans.CN 收音机爱 好者资料库 5 NOTES REGARDING COMPACT DISC PLAYER REPAIRS 1. Preparations 1) Compact disc players incorporate a great many ICs as well as the pick-up (laser diode). These components are sensitive to, and easily affected by,

8、 static electricity. If such static electricity is high voltage, components can be damaged, and for that reason components should be handled with care. 2) The pick-up is composed of many optical components and other high-precision components. Care must be taken, therefore, to avoid repair or storage

9、 where the temperature of humidity is high, where strong magnetism is present, or where there is excessive dust. 2. Notes for repair 1) Before replacing a component part, first disconnect the power supply lead wire from the unit 2) All equipment, measuring instruments and tools must be grounded. 3)

10、The workbench should be covered with a conductive sheet and grounded. When removing the laser pick-up from its conductive bag, do not place the pick-up on the bag. (This is because there is the possibility of damage by static electricity.) 4) To prevent AC leakage, the metal part of the soldering ir

11、on should be grounded. 5) Workers should be grounded by an armband (1M) 6) Care should be taken not to permit the laser pick-up to come in contact with clothing, in order to prevent static electricity changes in the clothing to escape from the armband. 7) The laser beam from the pick-up should NEVER

12、 be directly facing the eyes or bare skin. Armband Conductive Sheet Resistor (1 Mohm) Resistor (1 Mohm) CAUTION RadioFans.CN 收音机爱 好者资料库 6 ESD PRECAUTIONS Electrostatically Sensitive Devices (ESD) Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components co

13、mmonly are called Electrostatically Sensitive Devices (ESD). Examples of typical ESD devices are integrated circuits and some field-effect transistors and semiconductor chip components. The following techniques should be used to help reduce the incidence of component damage caused by static electric

14、ity. 1. Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain off any electrostatic charge on your body by touching a known earth ground. Alternatively, obtain and wear a commercially available discharging wrist strap device, which should be removed for po

15、tential shock reasons prior to applying power to the unit under test. 2. After removing an electrical assembly equipped with ESD devices, place the assembly on a conductive surface such as aluminum foil, to prevent electrostatic charge buildup or exposure of the assembly. 3. Use only a grounded-tip

16、soldering iron to solder or unsolder ESD devices. 4. Use only an anti-static solder removal device. Some solder removal devices not classified as anti-static can generate electrical charges sufficient to damage ESD devices. 5. Do not use freon-propelled chemicals. These can generate electrical charg

17、es sufficient to damage ESD devices. 6. Do not remove a replacement ESD device from its protective package until immediately before you are ready to install it. (Most replacement ESD devices are packaged with leads electrically shorted together by conductive foam, aluminum foil or comparable conduct

18、ive materials). 7. Immediately before removing the protective material from the leads of a replacement ESD device, touch the protective material to the chassis or circuit assembly into which the device will by installed. CAUTION : BE SURE NO POWER IS APPLIED TO THE CHASSIS OR CIRCUIT, AND OBSERVE AL

19、L OTHER SAFETY PRECAUTIONS. 8. Minimize bodily motions when handing unpackaged replacement ESD devices. (Otherwise harmless motion such as the brushing together of your clothes fabric or the lifting of your foot from a carpeted floor can generate static electricity sufficient to damage an ESD device

20、). RadioFans.CN 收音机爱 好者资料库 - 6 - SPECIFICATIONS 1. AMP SECTION Power Output (4 , 2 channel, T.H.D. 10%)10W + 10W T.H.D0.2% Frequency Response (-3dB down)42Hz25kHz Signal-to-noise Ratio83dB Input Sensitivity AUX40050mV Channel Difference 1kHz2dB 2. TUNER SECTION 1) FM/OIRT Frequency Range87.5MHz108MH

21、z or 65.0MHz74.0MHz -G-03P-S3T2-E(S) PN402561-715H WAFER,G/S GIL-G-08P-S3T2-E (S) PN701561-643HWIRE TRAP J-MX52151-0810 PN8016630S-FB07P00-6232-016-008-800 ELCO KOREA LOCA.NOPART NO.SPECIFICATIONVC PN802 561-711B *WAFER,G/S GIL-S-02P-S2T2-EF PN803 561-711F *WAFER,G/S GIL-S-06P-S2T2-EF PN804 561-711D

22、 *WAFER,G/S GIL-S-04P-S2T2-EF PN805 561-711E *WAFER,G/S GIL-S-05P-S2T2-EF PN806 561-686T WAFER,FPC ELCO 8370-201 20PST PN807 561-644JWIRE TRAP MX52147-1010 TM701 561-910CTERMINAL SEMKO PCB-ROCKING TM702 561-910CTERMINAL SEMKO PCB-ROCKING TP801561-716C WAFER,G/S GIL-G-03P-S3L2-E (S) CRYSTALS & FILTER

23、 CERAMICS X1026212S-AMKEA CDA10.7MG46-B MURATA X103616-020L RESO NATOR,CSB456F15 X104617T602D7.2MHZ X301616-020PCSA6.00MGU MURATA X302617-602F32.768KHZ KYOCERA (S) X801616-020X CSA16.93MX040,MURATA CERAMIC FILTERS CF101616-010BSFE10.7MS3GH(RD) 180K (S) CF102616-010BSFE10.7MS3GH(RD) 180K (S) CF103616

24、-010BSFE10.7MS3GH(RD) 180K (S) FUSES F7010FT1001B5131.0A 250V 5.2X20 G SMK F7020FT4001B5134.0A 250V 5.2X20 G SMK JACKS JK101561-101BTERMINAL, SPEAKER SP-024B2 (FFH-299S)HZ JK1016800S-A002ASP-031F PARK ELEC. ANTHZ JK701561-100DTERMIANL SPEAKER SP-026BHZ JK702576-002I JACK,BLOCK S-436*-2P(RD/WH)HZ JK7

25、03572-559FHTJ-064-04B KUNMING 9PIN MOLDHZ SWITCHES SW301558T026ATACT EVQ-114 04M H=4.3 TP SW501558T026ATACT EVQ-114 04M H=4.3 TP SW502558T026ATACT EVQ-114 04M H=4.3 TP SW503558T026ATACT EVQ-114 04M H=4.3 TP SW504558T026ATACT EVQ-114 04M H=4.3 TP SW505558T026ATACT EVQ-114 04M H=4.3 TP SW506558T026ATA

26、CT EVQ-114 04M H=4.3 TP SW507558T026ATACT EVQ-114 04M H=4.3 TP SW508558T026ATACT EVQ-114 04M H=4.3 TP SW509558T026ATACT EVQ-114 04M H=4.3 TP SW510558T026ATACT EVQ-114 04M H=4.3 TP SW511558T026ATACT EVQ-114 04M H=4.3 TP SW512558T026ATACT EVQ-114 04M H=4.3 TP SW513558T026ATACT EVQ-114 04M H=4.3 TP SW5

27、14558T026ATACT EVQ-114 04M H=4.3 TP SW515558T026ATACT EVQ-114 04M H=4.3 TP SW516558T026ATACT EVQ-114 04M H=4.3 TP SW517558T026ATACT EVQ-114 04M H=4.3 TP SW518558T026ATACT EVQ-114 04M H=4.3 TP - 47 - LOCA.NOPART NO.SPECIFICATIONVC SW519558T026ATACT EVQ-114 04M H=4.3 TP SW520558T026ATACT EVQ-114 04M H

28、=4.3 TP SW521558T026ATACT EVQ-114 04M H=4.3 TP SW522558T026ATACT EVQ-114 04M H=4.3 TP SW523558T026ATACT EVQ-114 04M H=4.3 TP SW524558T026ATACT EVQ-114 04M H=4.3 TP SW525558T026ATACT EVQ-114 04M H=4.3 TP SW526558T026ATACT EVQ-114 04M H=4.3 TP SW527558T026ATACT EVQ-114 04M H=4.3 TP SW528558T026ATACT E

29、VQ-114 04M H=4.3 TP SW701552-625KV/S CL04-SS(NR541) PIC (FFH-299S)HZ LOCA.NOPART NO.SPECIFICATIONVC POWER TRANS T7016170SCI01ZS66X30 115/230V 5/60HZHZ TUNERS PACK TUN101 521-026XFE417-G02 MITSUMI (FFH-299L) TUN101 6700S-F002AFM, KST-F501VA 3GANG KWANG SUN (FFH-299S)HZ TUN101 6700S-F002CKST-F502VD KW

30、ANGSUNG FM WIDEBA (FFH-299AX)HZ VARIABLE RESISTORS VR1010RD5601F6095.6K 1/6W 5 TA52HZ VR1010RD8201F6098.2K 1/6W 5 TA52 (FFH-299AX)HZ VR301611-911C EVQ VBJ FK1 24B , MATSUSHITA VR4010RV1472D2304.7K 6 ST P3 L2.5 5HZ LOCA.NOPART NO.DESCRIPTIONSPECIFICATIONREMARKSVC MICELLANEOUS 3828SXD008A MANUAL,CHINA

31、F-299/300 ENG/SPA/FRENCHHZ 3828SXD008C MANUAL,CHINAF-299 E/POLISH/HZ 3890SCC060ABOXFFHK299L BL1HZ 3890SCC060DBOXFFHK299SHZ 3890SCC060HBOXFFHK299AXHZ 632N218E COIL,ANTENNAAM LOOP LGEHZ LOCAL (=218E)HZ 5010SCT001AANTENNA FM T,533-010K LGEHK LOCALHZ 6710SCD901AREMOTE CONTROLLERLG FFH-299 DONGDO 25KEYHZ

32、 6871S-38EAA PWB(PCB) ASSY,TOTALFFH-299BL1 MAIN 6871S-38EAB PWB(PCB) ASSY,TOTALFFHK299AX 2BAND OIRT 6871S-38EAD PWB(PCB) ASSY,TOTALFFHK299SWL4 SW W/V 6871S-38JAA PWB(PCB) ASSY,TOTALFFH-299 FRONT ASSY 6871S-38JAB PWB(PCB) ASSY,TOTALFFHK299AX 2BAND OIRT 6871S-38JAD PWB(PCB) ASSY,TOTALFFHK299SWL4 SW W/

33、V 6871S-38KAA PWB(PCB) ASSY,TOTAL3 CD MAIN LGEHZ (S/S) 6871SB21RADPWB(PCB) ASSY3CH M/D U/D/O/C PWB ASSY 6871SC21RADPWB(PCB) ASSY3CH M/D OPEN PWB ASSY 6871SD21RADPWB(PCB) ASSY3CH M/D CAM PWB ASSY 6871SF21RADPWB(PCB) ASSY3CH M/D SENSOR PWB ASSY 6871SM38EAA PWB(PCB) ASSY,MAINFFH-299BL1 MAIN 6871SM38EAB

34、 PWB(PCB) ASSY,MAINFFHK299AX 2BAND OIRT 6871SM38EAD PWB(PCB) ASSY,MAINFFHK299SWL4 SW W/V 6871SP38EAA PWB(PCB) ASSY,POWERFFH-299BL1 POWER(230V) 6771SP38EAB PWB(PCB) ASSY,POWERFFHK299 W/V - 26 - INTERNAL BLOCK DIAGRAM OF ICs ILC7218 123456789101112 242322212019181716151413 X IN CE D1 CL D0 IN0 IN1 OUT

35、0 SVC OUT0 OUT1 OUT2 OUT3 OUT4 OUT5 OUT6IN0IN1 OUT1 OUT2 OUT3OUT4 OUT5 OUT6 HCTR LCTR AMIN FMIN VDD VSS PD1 X OU PD2 SVC 1 24 19 18 2 3 4 5 910111213141778 21 22 16 15 20 23 6 REFERENCE DIVIDER PD1XIN XOUT FMIN AMIN CE D1 CL D0 PD2 HCTR LCTR VDD VSS PHASE DETECTOR CHARGE PUMP SWALLOW COUNTER 1/16,1/

36、17,4 BIT 12 BIT PROGRAMABLE DIVIDER SHIFT REGISTER LATCH UNIVERSAL COUNTER 1 2 IKA3082 REC SWREC SWGNDP/B SWP/B SWCONTGNDGNDVCC 123456789 I LA1831 123456789101112 24 ALC BUFF LEVEL DET AM/FM IF BUFF AM/FM SW STEREO SW PILOT DET S-CURVE FM IF FM DET TUNING DRIVE REG GND VCC VCO FFFF DECODER MUTE TRIG

37、 STEREO DRIVE FF PHASE DET FM AM COMP AM OSC AM MIX AM RF-AMP AM DET AM IF AGC 2322212019181716151413 - 27 - IKIA6289N ITDA7439 Pre Out Ch2 3.3F 3.3F 3.3F 3.3F 3.3F 1000F 1000F 47F 47F 47F 0.018F 1000F 3.3F 47F 1.2F 100 F R . R Vcc 1000 F 47F 0.018F 10k 10k 150k 150k 1M 2.2k 2.2k Rec IN Ch2 Rec IN R

38、ec IN Ch1 ALC Rec Out Ch2 180k 180k Gv Gvo 180k 180k 1k 1k 1k 1k 100k 100 10k 10k 10 300k 9.1k 100 Pre IN Ch2/B (Play Rec) Pre IN Ch2/A (Play only) Pre IN Ch1/B (Play Rec) Pre Out Ch1 Pre IN Ch1/A Ch1/BNF Ch2/A Ch1/A Ch1/B Gvo Gv Gvo Gv Vcc M N NFNF Ch1 Ch1 Ch2 Gvc GV Ch2 ALC GND Rec 15 14 13 12 11

39、23 24 1 2 161718192122 IN Vref1 Vref Vref2 A/B Metal Out Pre Out REC Out Rec Out Ch1 Mix Out GND1M/N 6.8k A B 1000pF 1000pF 6.8k 9.1k 20 10 9876435 M/N L-IN1 100K 100K 100K 100K 100K 100K 100K 100K 1115162726 6 29 30 1 5 3 4 LOUT SCL SDA DIG_GND ROUT VS AGND RMRB RMRB 252324 171828192021222 12 G G 1

40、3 14 10 9 INPUT MULTIPLEXER +GAIN MUXOUTR INRTREBLE(R) MIN(R) MOUT(R) BIN(R)BOUT(R) CREFD95AU342A 0/30dB 2dB STEP MUXOUTL VOLUMETREBLE I CBUS DECODER + LATCHES MIDDLEBASS SPKR ATT LEFT VOLUMETREBLEMIDDLEBASS SUPPLY VREF SPKR ATT RIGHT INLTREBLE(L) MIN(L) MOUT(L)BOUT(L)BIN(L) 8 7 L-IN2 L-IN3 L-IN4 R-

41、IN1 R-IN2 R-IN3 R-IN4 2 - 28 - IKA8301 IKIA7805 P/PI KIA7824P/PI DRIVER PRELOGIC 23456789101 GND Vout1 Vz1 Vr Fin Rin Vcc1 Vcc2 Vz2 Vout2 3 1 2 4 R 12 R 1 C 21 R 12 Q 1 Q 7 Q 13 Q 10 Q 6 Q 5 Q 4 Q 3 Q 11 Q 15 Q 14 Q 9 Q 8 Q 16 Q 17 Q INPUT OUTPUT GND 2 Q 1 Z 18 R 8 R 9 R 13 R 11 R 17 R 5 R 6 R 1 R 2

42、 RR 16 R 20 R 19 R 14 R 10 R 7 R - 29 - IKA3010 PIN DESCRIPTION 28272625242322 T S D REGULATOR MUTE LEVEL SHIFT LEVEL SHIFT 100K 50K 50K 10K 10K 10K10K 10K BUY BUY BUY LEVEL SHIFT LEVEL SHIFT 1234567891011121314 21201918171615 Pin No.SymbolI/ODescription 1DO1.1ODRIVE OUTPUT 2DO1.2ODRIVE OUTPUT 3DI1.

43、1IDRIVE INPUT 4DI1.2IDRIVE INPUT 5REGREGULATOR 6REOOREGULATOR OUTPUT 7MUTEMUTE 8GND1GROUND 9DI2.1IDRIVE INPUT 10DI2.2IDRIVE INPUT 11DO2.1ODRIVE OUTPUT 12DO2.2ODRIVE OUTPUT 13GND2GROUND 14OPOUTOOPAMP OUTPUT 15OPIN (-)IOPAMP OUTPUT (-) 16OPIN (+)IOPAMP INPUT (+) 17DO3.1ODRIVE OUTPUT 18DO3.2ODRIVE OUTP

44、UT 19DI3.1IDRIVE INPUT 20DI3.2IDRIVE INPUT 21VCC1SUPPLY VOLTAGE 22VCC2SUPPLY VOLTAGE 23VREF2.5V BIAS VOLTAGE 24DI4.1IDRIVE INPUT 25DI4.2IDRIVE INPUT 26DO4.1ODRIVE OUTPUT 27DO4.2ODRIVE OUTPUT 28GND3GROUND - 30 - IKB9223 MICOM TO SERVO CONTROL AUTO SEQUENCER FOK DETECTION CIRCUIT MIRROR DETECTION CIRC

45、UIT Spindle Servo LPF (Double Speed) Sled Servo Amplifier & Sled Kick GEN. Tracking Phase Compensation Block & Jump Pulse GEN. Focus Phase Compensation & Offset cancel circuit Micom Data Interface Logic RF Amp 73 74 65 66 63 67 68 79 69 70 71 78 76 75 32 33 77 2 4 RF- RFO PD1 PD2 F E EI PD LD VR ARF

46、 IRF ASY EFM RFI DCB DCC1 GC1O MLT TZC FE2 FLB FGD FS3 TE1 FE1 GC1I CH1O CH1I MUTEI RRC CH2O CH2I GC2I GC2O 51516131419171211910 40 1 39 6 25 24 23 45 46 42 44 43 61 62 55 53 50 49 57 48 47 60 FOK MCP MIRROR FSET SMEF SMON FS1 to FS4 TM1 to TM6 BAL1 to BAL5 PS1 to PS4 GA1 to GA5 SMPD SPDL- SPDLO SL+

47、 SL- SLO TGU TG2 LPFT TE2 TEO TE- TDFCT FEO FE- FDFCT 327282658525135363738312930225459 APC Amp Center Voltage Amp. Focus Error Amp FE-BIAS Adjustment Tracking Error Amp E/F Balance & Gain Control RF Level AGC & Equalizer EFM Comparator Defect Detection CircuitT ADJUSTMENT-FREE CONTROL Built-in Post

48、 Filter Amp(L&R) LDON PIN DESCRIPTION Pin No.SystemDescription 1MCPCapacitor connection pin for mirror hold 2 DCBCapacitor connection pin for defect Bottom hold 3FRSH.Capacitor connection pin for time constant to generate focus search waveform 4 DCC2The input pin through capacitor of defect bottom h

49、old output 5 DCC1The output pin of defect bottom hold 6 FSETThe peak frequency setting pin for focus, tracking servo and cut off frequency of CLV LPF 7 VDDAAnalog VCC for servo part 8 VCCPVCC for post filter 9 GC2IAmplifier negative input pin for gain and low pass filtering of DAC output CH2 10 GC2OAmplifier output pin for gain and low pass filtering of DAC output CH2 11 CH2IThe input pin for post filter channel2 12 CH2OThe output pin for post filter channel2 13 CH1OThe output pin for post filter channl1 14 CH1IThe input pin for post filter channel1 15 GC