LG-FFH818A-cs-sp 电路图 维修手册.pdf

《LG-FFH818A-cs-sp 电路图 维修手册.pdf》由会员分享，可在线阅读，更多相关《LG-FFH818A-cs-sp 电路图 维修手册.pdf（62页珍藏版）》请在收音机爱好者资料库上搜索。

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 ADJUSTMENTS This set has been aligned at the factory and normally will not require further adjustment. As a result, it is not recommended that any attempt is made to modificate any circuit. If any parts are replaced or if anyone tampers with the adjustment, realignment may

21、 be necessary. IMPORTANT 1. Check Power-source voltage. 2. Set the function switch to band being aligned. 3. Turn volume control to minimum unless otherwise noted. 4. Connect low side of signal source and output indicator to chassis ground unless otherwise specified. 5. Keep the signal input as low

22、as possible to avoid AGC and AC action. TEST G331) 125 FFH-818A4901SK0001CDAMPER ASSYGEAR DAMPER AY(WH+WH;G331) 126 FFH-818A4920S-E007AHEAT SINKMAIN(F-680V/390V) 127 FFH-818A4920S-E007AHEAT SINKMAIN(F-680V/390V) 128 FFH-818A4930SCM007A HOLDERFIP(N1V/N2V) 129 FFH-818A4930SCM007A HOLDERFIP(N1V/N2V) 13

23、0 FFH-818A4940SC0051AKNOBTUNING (FFH-717) 131 FFH-818A4940SC0051AKNOBTUNING (FFH-717) 132 FFH-818A4940SC0052BKNOBPLAY&FUNC(NON AUTO REVERSE F-7 133 FFH-818A4940SC0052BKNOBPLAY&FUNC(NON AUTO REVERSE F-7 134 FFH-818A4940SC0053ASDGZKNOBJOG(FFH-717) 135 FFH-818A4940SC0053ASDGZKNOBJOG(FFH-717) 136 FFH-81

24、8A4940SC0055AKNOBVOL (F-313/515/717) 137 FFH-818A4940SC0055AKNOBVOL (F-313/515/717) 138 FFH-818A4970SBN002ASPRINGCAM (CDM-H1303) 139 FFH-818A4970SBN002ASPRINGCAM (CDM-H1303) 140 FFH-818A4974SB0001AGUIDECAM (CDM-H1303) 141 FFH-818A4974SB0001AGUIDECAM (CDM-H1303) 142 FFH-818A4974SB0003AGUIDEWORM (CDM-

25、H1303) 143 FFH-818A4974SB0003AGUIDEWORM (CDM-H1303) 144 FFH-818A5010SCT001AANTENNAFM T , 533-010K LGEHZ LOCAL 145 FFH-818A5010SCT001AANTENNAFM T , 533-010K LGEHZ LOCAL 146 FFH-818A563-801DCONNECTOR ASSYC,AY GSIL-S06X2 157/#28 250(S) 147 FFH-818A563-801DCONNECTOR ASSYC,AY GSIL-S06X2 157/#28 250(S) 14

26、8 FFH-818A563-935ECONNECTOR ASSYC,AY GS IL-G03X2 (I) 250 149 FFH-818A563-935ECONNECTOR ASSYC,AY GS IL-G03X2 (I) 250 150 FFH-818A563-935ICONNECTOR ASSYC,AY GS IL-G08/06 (I,G) 240 151 FFH-818A563-935ICONNECTOR ASSYC,AY GS IL-G08/06 (I,G) 240 152 FFH-818A632N218ECOIL,ANTENNAAM LOOP LGEHZ LOCAL (=218E)

27、153 FFH-818A632N218ECOIL,ANTENNAAM LOOP LGEHZ LOCAL (=218E) 154 FFH-818A6631SBE001ACONNECTOR ASSYP=2.0 , GIL-S02/S02 UL1571 155 FFH-818A6631SBE001ACONNECTOR ASSYP=2.0 , GIL-S02/S02 UL1571 156 FFH-818A6631SBE001BCONNECTOR ASSYP=2.0 ,GIL-S04/S04 UL 1571 157 FFH-818A6631SBE001BCONNECTOR ASSYP=2.0 ,GIL-

28、S04/S04 UL 1571 158 FFH-818A6631SBE001CCONNECTOR ASSYP=2.0 ,GIL-S05/S05 UL1571 159 FFH-818A6631SBE001CCONNECTOR ASSYP=2.0 ,GIL-S05/S05 UL1571 160 FFH-818A6710SCDC21A REMOTE CONTROLLER25KEY DONGDO FFH-515/717 AUTO 161 FFH-818A6710SCDC21A REMOTE CONTROLLER25KEY DONGDO FFH-515/717 AUTO 162 FFH-818A6716

29、R-A001APICK UPKSS-880 PICK UP OF K 163 FFH-818A6716R-A001BPICK UPX-2646-550-(1) SL MO 164 FFH-818A6716R-A001CPICK UP1-564-722-(11) CONNE 165 FFH-818A6716R-A001DPICK UP1-674-388-(11) MOTOR 166 FFH-818A6716R-A001EPICK UP1-771-642-(11) LEAF 167 FFH-818A6716R-A001FPICK UP2-647-407-(01) GEAR 168 FFH-818A

30、6716R-A001GPICK UP2-647-408-(02) GEAR 169 FFH-818A6716R-A001HPICK UP2-647-415-(01) SHUTT 170 FFH-818A6716R-A001JPICK UP2-647-732-(01) NS SL 171 FFH-818A6716R-A001KPICK UP2-647-742-(01) SPRIN 172 FFH-818A6716R-A001LPICK UP3-321-813-(11) POLIW 173 FFH-818A6716R-A001MPICK UP2-647-416-(02) SPRIN 174 FFH

31、-818A6716R-A001NPICK UP7-621-255-(15) SCREW 175 FFH-818A672-001AAAAWIREW SHIELDTIN WIRE 176 FFH-818A672-001AAAAWIREW SHIELDTIN WIRE 177 FFH-818A6756SBX001ACD MECHANISM PARTSSCREW 2.6X10X10XFZMY CDM-H813 178 FFH-818A6756SBX001ACD MECHANISM PARTSSCREW 2.6X10X10XFZMY CDM-H813 179 FFH-818A6768SCAS01B DE

32、CK MECHANISM PARTSMT90-21010J ARM ASSY S/S 180 FFH-818A6768SCAS01B DECK MECHANISM PARTSMT90-21010J ARM ASSY S/S 181 FFH-818A6768SCAS03A DECK MECHANISM PARTSMT72-00022A ARM S/S PINCH-F AD 182 FFH-818A6768SCAS03A DECK MECHANISM PARTSMT72-00022A ARM S/S PINCH-F AD 183 FFH-818A6768SCBS03B DECK MECHANISM

33、 PARTS6602-001013 BELT/FELT S/S MAIN 184 FFH-818A6768SCBS03C DECK MECHANISM PARTS6602-1038 BELT/FELT S/S MAIN A 185 FFH-818A6768SCDS03A DECK MECHANISM PARTSMT72-00069A LEVER S/S EJECT AD 186 FFH-818A6768SCES03A DECK MECHANISM PARTSMT91-04012G HEAD ASSY S/S ADR2 187 FFH-818A6768SCES03B DECK MECHANISM

34、 PARTSMT91-04012F HEAD ASSY S/S ADR2 188 FFH-818A6768SCES03B DECK MECHANISM PARTSMT91-04012F HEAD ASSY S/S ADR2 189 FFH-818A6768SCHS01A DECK MECHANISM PARTSMT59-00044A(TC881CB) HEAD S/S 190 FFH-818A6768SCHS03A DECK MECHANISM PARTSMT59-00043A(TC2132) HEAD S/S H 191 FFH-818A6768SCJS02ADECK MECHANISM P

35、ARTSMT91-01011P PULLEY/FLYWHEEL AS 192 FFH-818A6768SCOS01A DECK MECHANISM PARTSMT91-15012M MOTOR ASSY S/S 193 FFH-818A6768SCOS01A DECK MECHANISM PARTSMT91-15012M MOTOR ASSY S/S 194 FFH-818A6768SCQS01A DECK MECHANISM PARTS3101-000174 MOTOR S/S YD2BH AD 195 FFH-818A6768SCQS01A DECK MECHANISM PARTS3101

36、-000174 MOTOR S/S YD2BH AD 196 FFH-818A6768SCRS01A DECK MECHANISM PARTSMT73-00010A ROLLER S/S PINCH A 197 FFH-818A6768SCSS02A DECK MECHANISM PARTS6107-000353 SPRING S/S PINCH-F 198 FFH-818A6768SCTS01BDECK MECHANISM PARTS3404-000306 SWITCH S/S 199 FFH-818A6768SCTS01BDECK MECHANISM PARTS3404-000306 SW

37、ITCH S/S 200 FFH-818A6768SCVS02A DECK MECHANISM PARTSMT75-00049A SOLENOID S/S ADR24 201 FFH-818A6850SCHT24A CABLE,FLATP=1.25 FFC UL2896 20 240 A TYP 202 FFH-818A6850SCHT24A CABLE,FLATP=1.25 FFC UL2896 20 240 A TYP 203 FFH-818A6871S-38KACPWB(PCB) ASSY,TOTALF-313/515/717 SONY D 204 FFH-818A6871S-40WDC

38、PWB(PCB) ASSY,TOTALFFH-818 NEW MD FRONT 205 FFH-818A6871S-427ACPWB(PCB) ASSY,TOTALFFH-818 MAIN+POWER 206 FFH-818A6871SA427ACPWB(PCB) ASSY,AMPFFH-818 MAIN 207 FFH-818A6871SA427ACPWB(PCB) ASSY,AMPFFH-818 MAIN 208 FFH-818A6871SB21RAD PWB(PCB) ASSY3CH M/D U/D/O/C PWB ASSY 209 FFH-818A6871SB21RAD PWB(PCB

39、) ASSY3CH M/D U/D/O/C PWB ASSY 210 FFH-818A6871SC21RAD PWB(PCB) ASSY3CH M/D OPEN PWB ASSY 211 FFH-818A6871SC21RAD PWB(PCB) ASSY3CH M/D OPEN PWB ASSY 212 FFH-818A6871SD21RAD PWB(PCB) ASSY3CH M/D CAM PWB ASSY 213 FFH-818A6871SD21RAD PWB(PCB) ASSY3CH M/D CAM PWB ASSY 214 FFH-818A6871SF21RAD PWB(PCB) AS

40、SY3CH M/D SENSOR PWB ASSY 215 FFH-818A6871SF21RAD PWB(PCB) ASSY3CH M/D SENSOR PWB ASSY 216 FFH-818A6871SP427ACPWB(PCB) ASSY,POWERFFH-818 POWER 217 FFH-818A796-003BMICAMICA(20X24) 218 FFH-818A796-003BMICAMICA(20X24) 219 FFH-818A88H-0002CD MECHA PARTS3X9X12FZMY 220 FFH-818A88H-0002CD MECHA PARTS3X9X12

41、FZMY 221 FFH-818AL82+H12SLEAD SETFLAT UL2877#26-08 120 S/G-G 222 FFH-818AL82+H12SLEAD SETFLAT UL2877#26-08 120 S/G-G 223 FFH-818AL82+J18SLEAD SETFLAT UL2878#26-10 180 S/G-G 224 FFH-818AL82+J18SLEAD SETFLAT UL2878#26-10 180 S/G-G 225 FFH-818AL82+J30SLEAD SETFLAT UL2878#26-10 300 S/G-G 226 FFH-818AL82

42、+J30SLEAD SETFLAT UL2878#26-10 300 S/G-G 227 FFH-818AL82+L12SLEAD SETP=2.0 UL2877#26 SA-SC 12 120 S 228 FFH-818AL82+L12SLEAD SETP=2.0 UL2877#26 SA-SC 12 120 S 229 FFH-818A88H-0002CD MECHA PARTS3X9X12FZMY 230 FFH-818A88H-0002CD MECHA PARTS3X9X12FZMY 231 FFH-818A353-025CSCREWSPECIAL 3X10 FBK 232 FFH-8

43、18A353-025CSCREWSPECIAL 3X10 FBK 233 FFH-818A353-025TAAASCREWTAPTITE 3X10.5 FZMY 234 FFH-818A353-025TAAASCREWTAPTITE 3X10.5 FZMY 235 FFH-818A353-025CSCREWSPECIAL 3X10 FBK 236 FFH-818A353-025CSCREWSPECIAL 3X10 FBK 237 FFH-818A353-025TAAASCREWTAPTITE 3X10.5 FZMY 238 FFH-818A353-025TAAASCREWTAPTITE 3X1

44、0.5 FZMY 239 FFH-818A4810S-7829ABRACKETCD MOTOR(0.3T)NEW-MD 240 FFH-818A4810S-7829ABRACKETCD MOTOR(0.3T)NEW-MD 241 FFH-818A4810S-7829ABRACKETCD MOTOR(0.3T)NEW-MD 242 FFH-818A4810S-7829ABRACKETCD MOTOR(0.3T)NEW-MD 243 FFH-818A353-025CSCREWSPECIAL 3X10 FBK 244 FFH-818A353-025CSCREWSPECIAL 3X10 FBK 245

45、 FFH-818A353-025TAAASCREWTAPTITE 3X10.5 FZMY 246 FFH-818A353-025TAAASCREWTAPTITE 3X10.5 FZMY 247 FFH-818A0CN1040K949CAPACITOR TUBULA(HIGH DIELE)0.1M 50V Z F TA52 248 FFH-818A0CN1040K949CAPACITOR TUBULA(HIGH DIELE)0.1M 50V Z F TA52 249 FFH-818A0CK1040K945CAPACITOR,CERAMIC(HIGH DIELE)0.1M 50V Z F TS 2

46、50 FFH-818A0CK1040K945CAPACITOR,CERAMIC(HIGH DIELE)0.1M 50V Z F TS 251 FFH-818A0CN1030F679CAPACITOR TUBULA(HIGH DIELE)0.01MF 16V M Y TA52 252 FFH-818A0CN1030F679CAPACITOR TUBULA(HIGH DIELE)0.01MF 16V M Y TA52 253 FFH-818A0CK2230K945CAPACITOR CERAMIC(HIGH DIELE)0.022M 50V Z F TS 254 FFH-818A0CK2230K9

47、45CAPACITOR CERAMIC(HIGH DIELE)0.022M 50V Z F TS 255 FFH-818A0CE4766F618CAPACITOR,ELECTROLYTIC47M SMS 16V M FL TP(5) 256 FFH-818A0CE4766F618CAPACITOR,ELECTROLYTIC47M SMS 16V M FL TP(5) 257 FFH-818A0CN2230H949CAPACITOR TUBULA(HIGH DIELE)22000P 25V Z FTA52 258 FFH-818A0CN2230H949CAPACITOR TUBULA(HIGH

48、DIELE)22000P 25V Z FTA52 259 FFH-818A0CE1066K618CAPACITOR,ELECTROLYTIC10M SMS 50V M FM5 TP(5) 260 FFH-818A0CE1066K618CAPACITOR,ELECTROLYTIC10M SMS 50V M FM5 TP(5) 261 FFH-818A0CE1056K618CAPACITOR,ELECTROLYTIC1.0M SMS 50V M FL TP(5) 262 FFH-818A0CE1056K618CAPACITOR,ELECTROLYTIC1.0M SMS 50V M FL TP(5)

49、 263 FFH-818A0CE1066K618CAPACITOR,ELECTROLYTIC10M SMS 50V M FM5 TP(5) 264 FFH-818A0CE1066K618CAPACITOR,ELECTROLYTIC10M SMS 50V M FM5 TP(5) 265 FFH-818A0CE1066K618CAPACITOR,ELECTROLYTIC10M SMS 50V M FM5 TP(5) 266 FFH-818A0CE1066K618CAPACITOR,ELECTROLYTIC10M SMS 50V M FM5 TP(5) 267 FFH-818A0CQ3331N409CAPACITOR POLYESTER(MYLAR)0.033U 100V J POLY TP 268 FFH-818A0CQ3331N409CAPACITOR POLYESTER(MYLAR)0.033U 100V J POLY TP 269 FFH-818A0CQ3331N409CAPACITOR POLYESTER(MYLAR)0.033U 100V J POLY TP 270 FFH-818A0CQ3331N409CAPACITOR POLYESTER(MYLAR)0.033U 100V J POLY