Panasonic SA-AK88 Service Manual Download | Manualshive

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16.1 CD servo circuit

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Summary of Contents for SA-AK88

Page 1: ... output inDolby Pro Logic mode PMPO Total 2800 W RMS power output THD 10 Total 360 W Front LOW 100 W per channel 6Ω Front HIGH 40 W per channel 6Ω Center 40 W 8Ω Surround 20 W per channel 8Ω Input sensitivity AUX 250 mV MIC 0 7 mV Input impedance AUX 13 9 kΩ MIC 680Ω FM Tuner Section Frequency range 87 50 108 00 MHz 50 kHz step Sensitivity 2 5μV IHF S N 26 dB 2 2μV Antenna terminal s 75Ω unbalance...

Page 2: ...pe function 2 Press and hold the STOP TUNE MODE button for at least 2 seconds 3 While pressing the STOP TUNE MODE button press FF MEMORY button for at least 2 seconds 4 T will appear on the FL display unit is in the Self Dianostic Function TOP PREVIOUS NEXT Stránka č 1 z 1 20 11 2004 file C Documents 20and 20Settings Admin Plocha SCHÉMATA VIDEA PAN ...

Page 3: ...E BP PREV Tape will be stop after 2 seconds 6 Load a pre recorded tape with both side record tabs intact and close the cassette holder 7 Press PLAY TUNE TIME ADJ SELECT After TPS function tape will stop automatically 8 Press REC STOP Tape will not move 9 Press STOP TUNE MODE to indicate Error code If several problem exist error code will change each time when TUNE MODE PBC is pressed e g H01 H03 F...

Page 4: ...NEXT 1 Press CD 2 Press CD MANAGER 3 Press TUNE MODE to indicate Error Code If several problem exist error code will change each time when STOP TUNE MODE is pressed e g F15 F26 F16 etc TOP PREVIOUS NEXT Stránka č 1 z 1 20 11 2004 file C Documents 20and 20Settings Admin Plocha SCHÉMATA VIDEA PAN ...

Page 5: ...rror code TOP PREVIOUS NEXT 1 Press STOP TUNE MODE PBC button for 5 seconds 2 FL indicator shows CLEAR for 1 second and change to T TOP PREVIOUS NEXT Stránka č 1 z 1 20 11 2004 file C Documents 20and 20Settings Admin Plocha SCHÉMATA VIDEA PAN ...

Page 6: ...m 8 7 Power Amplifier Failure F61 TOP PREVIOUS NEXT 1 When power amplifier fail F61 will indicate automatically TOP PREVIOUS NEXT Stránka č 1 z 1 20 11 2004 file C Documents 20and 20Settings Admin Plocha SCHÉMATA VIDEA PAN ...

Page 7: ...ording not possible Faulty contact or short circuit of REC INH switch S974 S975 3 HALF SWdetection error H03 Playback cannot perform Faulty contact or short circuit of HALF siwtch S952 S972 4 Reel Pulsedetection error F01 The tape advances slightly and then stops Faulty reel pulse faulty hole detect IC IC951 IC971 5 TPS abnormal F02 Cassette deck will not perform TPS function Faulty playback EQ re...

Page 8: ...ction This error occurs when the POWER is ON for the CD block and an error is detected after the transmission has started 5 Startup fails even when youinsert CD or the selected disc tray does not open F27 Tray 1 detect switch or Tray 2 detect switch NG Check Replace 6 Cannot insert CD F28 Tray 1 detect switch NG Check Replace 7 Cannot eject CD F29 Check if disc is stuck Tray 2 detect switch NG Con...

Page 9: ...y Problem condition 1 POWER AMPoutput abnormal F61 When POWER is switched on power become off automatically During normal operation if DC DET become L PCNT shall become L and the error display on the left shall be displayed IC501 Stránka č 1 z 1 20 11 2004 file C Documents 20and 20Settings Admin Plocha SCHÉMATA VIDEA PAN ...

Page 10: ...ading mechanism This mode shall operate CD PLAY with CD unit being connected only and CD Automatic Alignment result is shown on FL display 10 1 How to enter the Self Diagnostic Function 10 2 CD Automatically Adjustment result indication TOP PREVIOUS NEXT Stránka č 1 z 1 20 11 2004 file C Documents 20and 20Settings Admin Plocha SCHÉMATA VIDEA PAN ...

Page 11: ...tion 2 Press and hold the STOP TUNE MODE button for at least 2 seconds 3 While pressing the STOP TUNE MODE button press FF MEMORY button for at least 2 seconds 4 will appear on the FL display unit is in the CD test mode TOP PREVIOUS NEXT Stránka č 1 z 1 20 11 2004 file C Documents 20and 20Settings Admin Plocha SCHÉMATA VIDEA PAN ...

Page 12: ...c key 0 on the remote controller will display the auto adjustment result FLOCK TLOCK and CLVS status shall be shown as below During the above display executing CD PLAY will display auto adjustment result for CD PLAY mode TOP PREVIOUS NEXT Stránka č 1 z 1 20 11 2004 file C Documents 20and 20Settings Admin Plocha SCHÉMATA VIDEA PAN ...

Page 13: ...16 1 CD servo circuit TOP PREVIOUS NEXT TOP PREVIOUS NEXT Stránka č 1 z 1 20 11 2004 file C Documents 20and 20Settings Admin Plocha SCHÉMATA VIDEA PAN ...

Page 14: ...bar display play back the 1st track when the menu playback feature is used or the 3rd track when the feature is not used IC702 IC1000 CD serial data input 67 D IC1000 Video signal output blue back screen IC702 Audio signal output 73 75 E IC1000 Audio serial data output ARF signal T 0 354 s F 2 822MHz T 0 48 s F 2MHz PLAY X 0 5 s Y 0 023Vx10 PLAY X 0 2 s Y 0 2Vx10 T 1 s F 1kHz PLAY X 0 2 s Y 0 2Vx1...

Page 15: ...l Audio normal TOC OK counter OK but no sound TOC NG both audio and video are NG Blue black display Fails to rotate Rotates Audio normal Video NG No sound Video NG TOC OK counter OK but no sound and video NG For TOC NG fault in the CD servo circuit IC701 IC702 IC703 or traverse system Traverse system focus servo system IC701 IC703 supply line clock line system control Traverse system tracking serv...

Page 16: ...ess the STOP button to stop playback Load a CD DA disc TOC display normal Are track No and time displays normal Does sound dropout occur Check pin of IC702 or pin of CN1000 Constant low 0V level 0V The following waveform is observed either intermittently constantly during playback 2 4V 1 s 3 2V 6 s 6 s IPFLAG 75 73 Taverse deck IC701 IC702 Refer to Troubleshooting guide on 18 1 CD servo circuit Fa...

Page 17: ...owing waveform is observed either intermittently constantly during playback 3 2V 3 0V 3 2V 23 s T 0 36 s T 0 36 s 23 s Are the following waveforms present at pins of CN1001 24 10 Traverse deck IC701 IC702 Faults is in the traverse deck or main board servo block IC1000 Press the SELECT button to start playback NO NO NO NO YES NO YES YES YES YES Normal Press the STOP button to stop playback Press th...

Page 18: ...flowchart Likely location of fault Press the SELECT button to start playback Press the STOP button to stop playback Load a video CD disc Does blue back screen appear Is the following waveform present at pin of CN1000 NO NO YES NO YES YES Normal 0 5V 0 5V T 63 5 s T 16 7 s 6 2V T 0 5 s Faults is in the main board video output block IC1000 Likely location of fault IC1000 Is the following waveform pr...

Page 19: ...3 2 1 L1201 C1176 0 047 C1175 35V220 R1188 1K R1189 4 7K Q1171 2SD1302STA SWITCHING REC ON R1177 5 6K D1175 MA111TX C1182 50V4 7 Q1174 2SC2412KT96R BIAS OSC CONT CrO2 R1181 3 3K R1180 2 7K R1179 2 7K C1181 0 01 C1180 0 01 C1177 1000P C1179 0 01 C1178 1000P R1178 1 2 Q1175 1176 2SC2002KTA BIAS OSC Q1175 Q1176 TP5 TP4 TP2 TP1 R1184 100K C1102 1000P R1104 15K C1194 1000P R1195 100K C1103 680P C1104 0...

Page 20: ...1122 33K R1146 10K R1121 33K C1143 50V4 7 C1127 0 01 R1117 270K R1115 390K C1131 820P C1129 820P R1123 10K R1125 1K C1146 16V10 C1135 1000P C1139 50V2 2 R1105 270 C1105 1200P C1108 16V33 C1109 16V100 C1111 820P C1113 6 3V220 R1107 39 C1115 0 033 R1141 6 8K R1109 4 3K R1111 2 2K C1147 1500P C1123 1800P C1119 50V4 7 C1121 50V1 C1125 0 047 C1136 1000P C1134 50V4 7 C1133 50V4 7 R1133 3 3K C1142 0 022 ...

Page 21: ...TC144TKA146 SWITCHING PLAY ON Q1151 Q1152 A G R1213 1 5K R1220 4 7K R1145 10K C1145 16V10 A B C D R1161 4 7K R1196 47K R1197 47K R1162 4 7K Q1115 Q1116 C1186 10V47 R1186 1K Q1115 1116 2SD2114K1V MUTING C1151 16V10 R1151 1M R1155 220 C1153 1000P Q1153 R1156 220 C1154 1000P R1152 1M C1152 16V10 R1154 1 2K R1153 1 2K C1166 16V10 C1165 16V10 C1162 16V100 R1158 220 A B C D Q1118 1119 2SC2412KT96R INTER...

Page 22: ... C VREF ADIN7 ADIN6 TPS VREF MK CLK MK DATA B 6 TO PANEL CIRCUIT H602 ON SCHEMATIC DIAGRAM 13 1 2 M MOTOR Q1203 2SD965RTA MOTOR DRIVE R1206 220 R1236 4 7K R1235 4 7K R1216 2 2K C1188 100P C1187 100P R1215 2 2K Q1208 DTC114TKA146 SOLENOID DRIVE D1202 MA111TX R1226 1K R1227 1K D1201 MA111TX R1225 2 7 R1221 2 7 Q1209 DTC114TKA146 SOLENOID DRIVE Q1206 2SB621RTA SOLENOID DRIVE Q1207 2SB621RTA SOLENOID ...

Page 23: ... VCS TH VCS1 VCS2 VLR2 VLR1 VLR TH L RECT DC CUT R RECT DC CUT L BPF3 L BPF1 R IN L IN C TRIM DC CUT CMODE CAP A GND NS BPF1 NS BPF2 OSC1 CLK DATA ENABL DATA CLK ENABL2 DIGITAL GND OSC OSC V DD A D NS D A DC CUT DC CUT S OUT S VOL IN OP VREF S VOL OUT S OP IN S OP NF S OP OUT VOL REF C OP OUT C OP NF A GND C OP IN C VOL OUT Vcc NC NR 1REF R MIX OUT L BPF2 R847 4 7K R855 6 8K R874 100K R848 4 7K C8...

Page 24: ... C202 100P R402 4 7K R202 4 7K R407 5 6K CN304 R207 5 6K R408 10K R208 10K C204 220P C404 220P R413 39K R415 1 2K R215 1 2K R213 39K Lch Rch LINE OUT Lch Rch AUX A GND Lch IN Rch IN B 3 B 5 Lch OUT Rch OUT D GND MO GND ME GND TO DECK CIRCUIT H1101 ON SCHEMATIC DIAGRAM 8 LOADING MOTOR CIRCUIT CD DETACT CIRCUIT S4 CLAMP SPINDLE POSITION CIRCUIT S5 BOTTOM D A B C D1 GP1S94 POSITION SENSOR D2 MTZJ4R7B...

Page 25: ...P GND 384FS B 1 IPFLAG CLDCK TX D GND LRDK SRDATA BCLK B 2 DISCK DILRCK DIDATA ID VDD Rch IN Lch IN A GND R478 10K R479 10K R480 10K R472 10K R427 1 8K R437 1 8K R429 1 8K C338 1000P C339 1000P R212 4 7K R412 4 7K R211 2 2K R411 2 2K C245 50V1 C445 50V1 R461 1K R462 R485 1K 1K T U V W X Y Z a b d e f g h i R482 R473 R483 R474 R475 R476 R477 R484 R458 R459 R460 1K 4 7K 1K 4 7K 4 7K 4 7K 4 7K 100 1K...

Page 26: ...3AFP DIGITAL SOUND CONTROLER GEQ OUT2 VOL IN2 VOL OUT2 GRAPHIC EQUALIZER BB2 BUF IN2 BUF NF2 BUF OUT2 AVDD DGND LATCH DATA CLK DVDD PORT B PORT A BUF OUT1 BUF NF1 BUF IN1 BB1 PS IN PS IN K IN1 K OUT1 TAPE REC1 EXT REC1 VCR REC1 DPL1 GEQ OUT1 VOL IN1 VOL OUT1 GRAPHIC EQUALIZER R303 10 B L g J I h K A M C304 10V330 C208 C209 C210 0 068 0 18 0 022 0 039 C211 C212 0 022 3300P C213 C214 2200P 2700P C21...

Page 27: ... C368 0 3V100 C370 0 1 R353 4 7K C346 1000P Q345 Q347 Q345 347 2SC3311ARTA INTERFACE R489 4 7K R350 4 7K R358 4 7K C347 1000P R345 47K R349 100 R354 100P R490 1K R380 22K D348 1SS355TE17 R487 47K R354 47K D346 1SS355TE17 Q346 2SC3311ARTA INTERFACE R382 10K R376 1K K N X300 6MHz C373 0 01 R384 1K IC307 M38067MC435 SYSTEM CONTROL HALT CNVS RST NC NC CFI CFO VSS LD CLR LD STB LD CLK LD DATA PWCNT CSE...

Page 28: ...2 2 1 3 4 5 6 7 8 9 10 11 CN301 C379 1000P P GND D GND B 4 B 1 GND1 B 1 B 2 B 6 VP LED9V B 5 12 2 1 3 4 5 6 7 8 9 10 11 GND1 B 3 H Lch OUT H Rch OUT LOW CH GND1 S CH C CH CD DC DET P CONT HP SW TO POWER CIRCUIT CP500 ON SCHEMATIC DIAGRAM 22 TO POWER CIRCUIT CP501 ON SCHEMATIC DIAGRAM 22 CN300 A B C f e R312 2 2 D306 DAP202KT146 D307 DAP202KT146 Q307 KRC111STA DC IN DET D308 1SS355TE17 C331 50V4 7 ...

Page 29: ...7A 50V0 33 R710A 330K C709 0 01 R711A 180 R713A 330K R707A 2 2K R712A 8 2K C710A 50V1 C711A 1000P R714A 4 7K C712A 100P C714A 1000P C715A 10V470 R709A 470 C713A 50V1 R715A 100 R913 10K R907 100 R905 100 R665 1K R677 1K R658 1 2K R655 1 8K R651 2 2K R648 2 7K R642 4 7K R639 6 8K R669 10K R634 22K R679 68K S646 MENU S645 MENU S641 KARAOKE S642 ECHO S622 EQ DOWN S623 EQ LEFT S624 EQ UP S626 EQ RIGHT ...

Page 30: ...ALPF OUT ADLPF IN C723A 0 015 R720A 10K MIX OUT MIC IN R722 8 2K R723A 22K C728 4700P R726 22K C626 50V1 R908 100 VR700 10K B MIC VOL R730 8 2K C730A 50V1 R727A 100 C729 3300P R721A 15K C727 0 015 R719A 4 7K C724A 50V0 47 R718A 10K C722A 0 033 DAINT IN ADINT IN MUTE BIAS ECHO VR DSC GND C719 16V22 R716A C718A 0 01 M N R706A 22K R708A 220 Q602 KTA12710YTA POWER SUPPLY IC601 BU2090AF E2 LED DRIVE 1K...

Page 31: ...R724A 220 R725A 220 C725A 33P R732 47K R731A 10K d e CP603 NC MM I O NC NC NC NC NC NC B 4 MIC M GND NC SD NC SER5 SER3 NC MUTEA P CONT LVL1 H602 B 6 MK DATA MK CLK VREF TPS ADIN6 ADIN7 VREF IC603 M62457FPE1 SPE ANA LYZER AMP Q605 2SA933SSTA POWER SUPPLY Q607 KRC102MTA POWER SUPPLY CONT Q703 KRC102MTA INTERFACE Q704 2SC3311ARTA INTERFACE V CC V CC 2 1 2 6 7 8 9 10 11 12 13 14 15 16 5 3 4 SCHEMATIC...

Page 32: ...D617 RVD1SS133TA R918 220K C645 16V10 R671 10K D636 RVD1SS133TA R917 C643 C641 C642 C639 C638 C636 C635 C633 C630 C631 C632 560P 100P 560P 560P 560P 560P 560P 560P 560P 560P 560P C627 0 01 C628 10V22 V CC IC600 M38199MF213F SYSTEM CONTROL FL DRIVE Q606 Q608 Q604 KRC103MTA RESET 100 L605 3 3µH V EE F 470 1K 100 10K Q705 2SC3311ARTA INTERFACE 10K R951 R952 10K 10K 95 94 93 92 91 90 89 88 87 86 85 84...

Page 33: ...03 CP602 SYNC FL1 FL2 SYS 6V ECONO GND LED9V SPEANA B 6 MAIN CLK VREF DCDET PLL CLK PLL DA PLL CE MM CS MM REQ MM RESET ST DO SER4 NC LVL2 D GND VP HP GND HP Rch HP Lch HP SW LED9V SER1 SER5 DPL DA R971 1K M L J L606 100µH FL DISPLAY 1 2 6 7 3 8 9 10 11 12 13 14 15 16 17 18 19 20 5 21 22 23 24 26 25 27 28 29 30 32 31 33 34 35 37 36 38 39 40 41 42 43 44 45 46 47 48 49 51 52 53 SCHEMATIC DIAGRAM 15 ...

Page 34: ...K R534 56K C528 15P R557 120K R535 56K C529 15P R558 150K R559 180K C531 22P D519 RK306LFU1 D517 RK306LFU1 R520 2 7K R513 4 7K R516 2 7K R509 2 7K R507 4 7K R512 2 7K 10 11 C548 50V3 3 R517 4 7K R568 22K R508 4 7K R561 10K C547 16V10 P GND B 5 LED9V 12 2 1 3 4 5 6 7 8 9 H Lch IN CD B 3 10 11 GND1 H Rch IN LOW CH GND1 C CH DC DET P CONT HP SW B CP501 D502 RL1N4003S P D503 RL1N4003S P E C Q510 2SD21...

Page 35: ...TZJ15CTA R577 2 2 D520 1D3E R572 2 2 Q519 2SB1417PQT POWER SUPPLY Q516 KTC3199GRTA POWER SUPPLY CONT C546 10V33 R569 3 9K R551 2 2K Q509 KRC110MTA SWITCHING Q512 2SC1740SSTA RELAY DRIVE C523 50V1 D509 MTZJ12BTA C572 5600 D506 MTZJ8R2BTA R565 RSFMB40KT L F R585 10 C564 0 1 C563 0 1 E JK504 CENTER SPEAKER 8 R588 10 C570 0 1 C569 0 1 L ch R ch SURROUND SPEAKERS 4 SPEAKERS R586 10 R583 10 C566 0 1 C56...

Page 36: ...502 CN502 R976 10K R977 10K C975 35V4 7 D979 1D3E D980 1D3E C978 0 01 C977 1000 D981 1D3E C976 1000 C979 1000P R983 1 2K R984 1 5K D982 MTZJ7R5ATA D983 1D3E D984 1SS291TA C980 0 01 C981 10V47 D978 1D3E R985 22 R980 22 R981 22 R982 820K Q976 2SD2144STA POWER SUPPLY SCHEMATIC DIAGRAM 24 SUB TRANS CIRCUIT A B C D E AC10 8V AC10 8V AC10 8V R979 RSFMB40KT L R986 15 220V 110V 127V 230 240V 230 240V 127V...

Page 37: ...3 AN8739SBE2 FOCUS COIL TRACKING COIL TRAVERSE MOTOR SPINDLE MOTOR DRIVE TRACKING COIL FOCUS COIL 0 1 2 12 11 3 8 10 5 4 9 680P 680P 1K 0 1 0 047 6 Vcc PDF PDE LD LD GND NB GND GND NA VREF LPD GND T T F F LD 5V 7 7V R749 4 7K C C738 0 01 R727 6 8K C752 1500P 14 15 16 17 18 19 20 13 12 11 10 9 8 7 21 22 23 24 25 26 6 5 4 3 2 1 NC RSTIN IN3 IN4 VREF Vcc NC GND PVcc2 PGND2 NC D4 D4 D3 D3 RST NC IN2 P...

Page 38: ...44MHz R714 120 C721 10P C724 0 1 C723 10V220 IC702 MN662790RSC SERVO PROCESSOR DIGITAL SIGNAL PROCESSOR DIGITAL FILTER D A CONVERTER IOV DD Rch OUT 5V REST SW SUBC RST STAT SBCK SUBQ SQCK BLKCK MLD MDATA MCLK P GND 384FS IPFLAG CLDCK D GND A GND Lch OUT VCOF E B D F R753 10 23 24 25 26 27 28 29 L A P Q R S T U V R710 10 R741 47K R742 220K Q P R S T U V R716 10 N M D TP15 TP4 L M TP18 R713 100 O TP...

Page 39: ...3 7 2MHz R117 47K C130 6 3V100 C132 1000P C113 1000P R132 10K R133 1K R130 10K R138 3 3K R137 1K R136 1K R135 1K R134 470 A B C D C125 16V22 R114 5 6K C110 0 01 A B C D E F IC102 LC72131MDTRM PLL FREQUENCY SYNTHESIZER AM ANT EXT LOOP FM ANT GND 75 JK101 L2 0 47 H L1 1 2 H L102 0 39 H R151 82 MAIN TUNER CIRCUIT D3 SVC211SPA AL Q3 2SC2787FL1TA LOCAL OSC Q4 2SC2787FL1TA BUFFER AMP R4 100K D1A SVC211S...

Page 40: ... 0 01 C120 16V10 R121 22K C139 25V4 7 R102 4 7K C119 680P C116 0 033 R143 22K C115 25V4 7 R120 47K C109 1000P C114 50V3 3 R118 3 3K A D B C R104 1K C103 0 01 R107 330 C104 1000P R105 470 CF201 R106 470K 1 3 2 CF202 1 3 2 IC101 LA1833NMNTLM FM AM IF AMP DET AM OSC MIX FM MPX Q106 KRA102MTA POWER SUPPLY FM ON 7 3V 14 5V A 11 10 9 8 7 6 5 4 3 2 1 GND 14 5V R126 1K R125 470 Q101 2SC2058SPTA FM IF AMP ...

Page 41: ... R1013 75 C1020 0 1 R1007 5 6K R1012 3 3K C1016 0 1 R1009 9 1K C R1014 75 R1005 75 D E C1014 150P C1013 100P C1018 330P C1015 270P C1012 0 1 C1009 0 1 d e f C1007 0 1 C1005 0 1 R1003 100 R1002 100 Q R S T U V W X Y Z a b J K L M N O P H I A B C D E F G A B C D E F G C1021 100P H I J C1019 100P K L M N O P Q C1006 0 1 R1008 10K C1008 0 1 J D R1020 2 2K R1021 4 7K C1010 0 1 C1011 0 1 R1000 5 6K R100...

Page 42: ...2 TP10 TP28 TP28 TP22 TP3 TP11 TP5 TP12 TP27 TP17 TP6 TP19 TP18 TP13 TP29 TP24 GND TP30 3 2V 5V 5V 1 2 3 4 8 7 6 5 Vcc GND 1 2 3 4 5 6 7 8 9 10 13 14 15 16 44 43 42 41 40 39 38 37 36 35 20 19 18 17 Vcc DQ1 DQ2 DQ3 DQ4 Vcc DQ5 DQ6 DQ7 DQ8 NC NC WE RAS NC A0 Vss DQ16 DQ15 DQ14 DQ13 Vss DQ12 DQ11 DQ10 DQ9 NC LCAS UCAS OE A8 A7 A1 A2 A3 Vcc 32 31 30 29 28 27 26 25 A6 A5 A4 Vss 21 22 24 23 SCHEMATIC DI...

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