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Summary of Contents for GCD 2700

Page 1: ...RATION 2 REMOVAL AND INSTALLATION 5 TUNER ADJUSTMENTS 7 TAPE DECK ADJUSTMENTS 9 ILLUSTRATION OF CD CHANGER MOVEMENT 12 CD PLAYER S SERVICE MODE 15 ADJUSTMENTS 19 PRODUCT CODE No 129 390 02 EXPLODEDVIEW 23 PARTS LIST 26 INTERCONNECT DIAGRAM 37 IC BLOCK DIAGRAM 38 LCD DESCRIPTION 41 SCHEMATIC DIAGRAM 42 WIRING DIAGRAM 44 IC DESCRIPTION 52 lC TRANSISTOR VOLTAGES 70 REFERENCE No SM 580050 I ...

Page 2: ...onductor laser Frequency response 20 Hz 20 kHz Total harmonic distortiorx 0 04 1 kHz Signal to noise ratio 96 dB Wow and fluttec Below measurable limits GENERAL Power requirements AC 230 240 V 50 Hz Power consumption sow Dimensions W x H x D Approx 360x353x399 mm Weight APpnJx 8 2 kg RB 2000 WffRELESS REMOTE CONTROL Power requirements 2 SUM 3 AWRLT batteries Dimensions W x H x D Approx 41 x 175x 1...

Page 3: ... SKIP or DISC SELECT button PROG blinks DISC2 TPACK AL Pr 3 P 6 Select track 9 by pressing the CO cci button DISC2 TRACK 9 pr 3 PROG Ilt 9 Press the MEMORY button PROG remains lit DISC2 TRACK 9 Pr 3 PROG 9 10 Select DISC 3 by pressing the DISC SKIP or DISC SELECT button PROG blinks OISC3 TRACKAL P 4 PROG 18 11 Press the MEMOFtY button PROG remains lit Disc 3 TPACKAL Pr 4 PRCG When programming use ...

Page 4: ...Press the Plm button to start playback with track 1 on dtsc 2 me deck starts recording at mesametime DISC2 TR4CK 1 0 01 EOITb SIOEA 123 When all 6f the tracks for side A have finished playing the player will go to pause mode at the beginning of the track to be recorded onto side B After the tape deck stops aufomadceffy turn wer the cassette and reinsen it Press the REC button to start recording of...

Page 5: ...sec Example To record onto a 60 minute tape 1 2 3 4 5 d 1 2 3 4 Press the EDfT button un l C W appears on the display Press the FADE button FADE appears Insert a C 60 cassene tape into the tape deck to record side A If you desire program the tracks Refer to PRO GRAMMED PLAV on page 10 Press the REC button Press the D oo bunon Recording starts The pfayerwill start playback with track 1 onsideAand p...

Page 6: ...o the original posistion after work is completed First have reading many tie new FIXERS 614 129 4971 for replacement I REMOVAL OF FRONT PANEL ASSEMBLY 1 Remove the 6 CD changer block mounting screws 0 2 Remove the 8 side panel mounting screws 3 Remove the 11 rear panel mounting screw REMOVAL OF FRONT PANEL BUTTONS 5 ...

Page 7: ...OARD 1 Remove the 2 tape deck P C Board mounting screw 0 2 Remove the 6 tape mechanism mounting screws A d WIRING IAYOUT DISC TABLE SENSOR P C B A a CD MECHANISM BLOCK c Arrange the wiring as shown in the figure h MARK YELLOW m rGRAY FL i ii s I A 6 TABLE MOTOR ...

Page 8: ...lead wire so that they are not near the heat sink of the POWER AMP P C Board LEAD WIRE MUST NOT TOUCH TO HEAT SINK N POWER AMP P C B HEAT SINK rUNER POWER SWITCH PC B gy m BLACK RED FXXER 614 129 4971 d POWER TRANSFORMER 1 See illustrations ADJUSTMENTS TUNER P C B 1 J I l 432 J Oc T2202 J434 IL 430 TP204 TP235 TP234 TP233 ...

Page 9: ...L2102 L2103 106 0 MHz CT201 90 0 MHz onnectto rp211 H TP212 G i 5 Tracking 6 Max Ovto osv 106 0 MHz Zonnect to rp211 H 98 0 MHz 66 dB 98 0 MHz T2202 1 7 Ov Vco 8 19 00kHz rP212 G 1 98 0 MHz SVR23 98 0 MHz 66 d8 Modulation OFF Connect to TP206 H TP207 G 19 00 kHz f 513Hz b CHECKING THE AM BAND SG MODULATION 1 kHz So o IRE LOOP ANTENNA I VTVM Connections SG Frequency Position of tuning dial output A...

Page 10: ...oth channels 1 and 2 are the same level Using a dual channel oscilloscope All wiring should be returned to the original posi tion after work is completed Phase alignment Prepare a dual channel oscilloscope Set so that the left and right ranges of the oscillo scope are the same Play the test tape MTT 1 14N etc 10 kHz Adjust so that the waveforms for the left and right channels are in alignment as s...

Page 11: ...iming adjust bfl ment of decks A and B x 7 OECK F C B o CNOOS o o L CH E R CH o TAPE OUT KOOTED HIGH SPEED 21 TEST POINT n CNO05 f 1 NORMAL SPEED SHORT HIGH SPEED 1 2 3 4 5 6 7 Insert the test tape MTT 1 11 etc 3 000 Hz into tape deck A Press tape deck A s PIAY button Adjust SVROO1 so that the frequency counter shows a reading of 3 000Hz Press tape deck A s STOP button Insert the test tape into ta...

Page 12: ... Play the test tape and adjust SVR501 L channel and SVR601 R channel so that playback output becomes 540 mV Recording playback frequency gain adjustment DOLBY NR switch OFF Input signal 14dB 1 kHz Tape to be used NORMAL AC 224 etc Introduce input signals to the VIDEO terminals and with the unit in the REC PAUSE mode ad just input level for 3dB out Record the input signal Press the REWIND button an...

Page 13: ... then stops If a disc has not been intalled no disc appears on the display 7 When DISC SKIP is pressed steps 4 to 6 are per formed and operation advances to the next disc num ber b NAME AND FUNCTIONS OF MAJOR PARTS 1 Disc table 82 Disc number detection slits 1 to 5 and a stop e ec tion slit are cut into the outside circumference of the disc table These slits are used by th_ephoto coupler to detact...

Page 14: ...king detector switch circuit board assemb This circuit board is equipped with switches SW2 and SW3 which are turned ON OFF by the lock slide 631 When SW2 is set ON it means that the upward wno tion of the sub chassis is completed or in other words that the disc chucking is completed Wham SW3 is SET ON it means that the downward motion of the sub chassis is completed or in other womls that the disc...

Page 15: ...d upward at all times by tensaicm spring L 26 and tension spring U R 28 and it is kept in place by the cam puny 37 lock slid smc 2 The rotational force of the changer motor is ap ed to the moving gear and idler pullyed secured to the moving lever The moving gear performs two differant operations depending on the direction in which tha canger rrtswor is rotating When the motor is rotating clockwise...

Page 16: ...the center has risen by means of the pinch lever 57 the lock slide enters the stop slit where it is secured The pinch lever also measures the back tension of the table and prevents jogging DISC DISC TASLE GEAR LOC 3S E 51 I PINCH LEVER PINCH LEVER 57 LOCK SLIDE 31 TA 103 DISC STCP DISC No CD PLAYER S SERVICE MODE The service mode can be used to check the CD player CD OPERATION INTRO SCAN 7 0 1 88 ...

Page 17: ...G MEMORY TIMER REPEAT FNVTUNE MODE REPEAT To cancel the PLAYIPAUSE D service mode TUNING UP 8 SLEEP 9TllP TUNING DOWN CONT PRESET UP w SIDE A PRESa wDOWN SIDE B CD DISC SK RANDOM PLAY pANnC M Enlr INTRO SCAN INTRO I I C NF 1 DISC I TRACK I I IP I ALL I I rnlr I I I I I 1 I DISC SELECT PROG tiM I FUNCTION PROGRAM TUNER ii 3 3 TAPE 15 4 4 VIDEO 5 5 _ b CHECKING THE MOUNTING OF THE LCD S PRINTED CIRC...

Page 18: ...MIW IICC IIIS S1 11 A I A I l MONfJ F Tlw 11 1 L D J mlz3456 8g1011121a 1415 F T LCONT I LCD DISC NO I CD ERROR MESSAGE 1 I o I No malfunction I 1 The pickup s laser was not focused properly during a focus search 2 The sub code could not be read when the disc began spinning 3 The TOC table of contents could not be read t 4 I The focus was lost when the servo was on e g during playing 5 I The sub c...

Page 19: ... 21 and 22 for instructions on adjusting without using the service mode Adjustment is easier in the service mode because it is not necessary to repeatedly press the FORWARD SEARCH button 1 2 3 4 5 6 7 t I Connect an oscilloscope to TP103 TE Switch the unit to the service mode by pressing the CD player s PLAY PAUSE k key within one second after pressing the CD player s MEMORY key and the tuner s BA...

Page 20: ...h the lens or tEwedrive circuit s printed ir U w cuit board pattern In order to prevent da e by stati ing shipment the indic d pattern P C Board are short circdted by so After the pick up replacement rem that is short circuiting the patterns Replacement and Iubric n of the CD mechanism I BE SURE AT THIS TIM NOT TO POWER GEAR I L MIDOLE GEAR EM SOL 1 w SLED MOTOR Iote M 50 MOLYKOT EM 50L G 7 SANGRE...

Page 21: ...ert gear ever and special washer apply MC grease EMSOL to 113 length portion of shaft WASHER w EMSOL MOVING LEVER VIEW A I I After insert gear lever to shaft Lever in set under the ribs P J id ILLAI _ J k GEAR DISC TABLE EM50L CHASSIS SHAFT LY kft7 q 0 0 0 1 t 8 95 tO 1 mm DISC TABLE MOTOR 20 ...

Page 22: ...urements are referred toTP104 GND 2 Adjust SVR11 is initial setting position as shown in the illustration ADJUSTMENTS Adjustment Test Measuring Input output Adjustment Adjustment Item disc instrument connection connection location value a Tracking TP103 TE Waveform balance Oscilloscope TP104 GND SVR11 symmetrical adjustment F30L referred to OV b Checking the 50146 Memory scope IC101 H TP102 FE 500...

Page 23: ... 3dB Checking the Tracking gain Connect an oscilloscope via the band pass filter to TP103 TE Play the test disc Connect an AF oscillator via a 47K ohm resistor to pin 140flC101 Frequency 400Hz amplitude 500 mV RMS Check the average 400 Hz TE signal amplitude on TP1 03 measured through the band pass filter is 500m Vp p 3dB Checking the eye pattern The adjustments a c complete the adjustments of the...

Page 24: ...i XPLODED VIEW CABINET CHASSIS r ...

Page 25: ......

Page 26: ...18 9dl S 83S ZOO i3 LOO 6L OL LL 9L SL L ZL IL ON 43U lIM1331 a 8Laz3sz w v 818mz U H311MSMSINUH33U 3dU1 d9 S N0133NN02 A SSW I Z77981Z 919 H311MS WS 63SZ W LL9 18L3SZ U WW63SZ Ml WI SL8L3SZMl A 1 SL813SZ W ZSK8 LS ZO 9 l S1812SZ 31 SA9L1W1O al dYd N8 81 ZSSZO ISSZO LOZZNU U WLLV1O W dWtN8 W LOZZNU 81 Y W63SZ 81 KML813SZ ML Li3 SLOiWSZ 8 1 WS963SZ 81 ti9 S18L3SZ 8 1 O U1O8S3SZW A fZ6L3SZW A SZ6L3S...

Page 27: ...06104 TR DTC144ES Q4413 Q4415 Q4417 405011 8609 TR 2SC1740S S Q4418 4050006104 TR DTC144ES EF NO PART NO DESCRIPTION Q4419 405011 8609 TR 2SC1740S S Q4420 4050003103 TR DTC114ES Q4420 Q4421 Q4422 405011 8609 TR 2SC1740S S Q4501 405011 8609 TR 2SC1740S S Q4501 04502 Q4601 405011 8609 TR 2SC1740S S Q4601 tQ4602 S2501 6142205655 SWITCH TACT tBAND S2502 6142205655 SWITCH TACT TUNERMEMORY S2503 6142205...

Page 28: ...17 CN718 0001 OR Odl 5 OR 0016 OR 0099 OR 0501 OR 0601 OR Icool OR OR IC501 It 502 IC521 IC551 L501 L502 OR L511 L512 L601 L602 OR L611 L612 L981 QOO1 OR QO03 OR OR QO04 OR QO05 OR OR QO06 OR QO08 OR OR Q501 OR OR Q504 OR OR Q601 OR OR 29 iARO AssY PART NO 6142444511 16141306926 403081 1209 6140172102 6140172133 6140164084 6140208849 6140206562 6140206548 6142230329 614 2230336 614 0172126 614 017...

Page 29: ...Lf ZE 1 2KJfl l 10W 30 EF NO R1125 R1126 R1127 R1128 R1131 RI132 R1133 R1134 R1135 R1136 R1138 R1140 R1141 R1142 R1144 R1145 R1146 R1147 R1201 R1204 R1401 R1402 R1403 R1405 R1407 R1408 R1501 R1502 R1503 R1504 R1505 R1901 R1951 SVR11 X1401 CtiNTR REF NO 92 OR C1301 CN106 CN107 CN108 CN109 CN11O CN1ll CN112 01601 OR 01605 OR D1606 OR IC103 IC107 PART NO 401 0383603 401 0375608 401 0389902 401 036 19...

Page 30: ...SISTOR 1 J 1 2W RESISTOR 1 J 1 2W RESON4TOR CERAI IC 4 19MHZ RESONATOR CERAMIC 4 19MHZ IR REMCNE CONTROL SEHS6R P C BtiARD ASSY 1 F REF NO 93 CN256 02600 PART NO 6142457753 614 035 4 28 407 152 1533 OESC IPTION SSY PCB IR REI 3TE CONTROLSENSOR SOCKET 3P FRONTP C B CN255 PHOTOOIOOESPS 422 1 RESET SHITCH P C BiiARD ASSY REF NO PART NO OESC IPTION 94 6142457740 ASSY PCB RESET CN113 6140354911 SOC ET ...

Page 31: ...EXPLODED VIEW TAPE MECHANISM 106 ti v lo3A d 07A _ 104 lo8A J 109A sl b 1 Jj F lo i 12 liA we ll3 lTIA 1 8 mT 5 8 115 17n asl I I 12 1 I I 164 15 i y8 Jii f 1 174 f 159 160 t 161 6iiiib J 32 ...

Page 32: ...VER STOP EJECT BUTTON 137 6142080313 LEVERrPAUSE BUTTON 138 614 1521251 SPRING WIRE BUTTONLEVER 139 6141521268 SPRING WIRE BUTTONLEVER 140 614 1349046 GEAR F FWO 141 4120261402 SPECIAL SCREW 2X3MN TAPPING 142 614 1518299 SPRING PLATE PACK SPRING CASSETTE 143 6142093849 SWITCH TAPE SELECT NORMAL CR02 SO01 SO02 144 6140672770 CHASSIS ASSY 145 614 1401522 LEVER EJECTSLIDE 146 4120230903 SPECIAL SCREW...

Page 33: ...EXPLODEDVIEW CD MECHANISM 21 21 1 R 1 3 7 41 J 42 51 8 13 41 1 I I I I I I I Fll I I I I I 1 34 35 ...

Page 34: ...CIAL WASHER 2X1 3X0 13MN fl GEAR THRUST 48 6142445303 ASSY LEVER IIWING 49 4120455900 SPECIAL WASHER GNW 3 2X8X0 25MM tlWINGLEVERTHRUST 50 411 0209902 SCR S TPGBRZ FLG 3X8MN 01SC TABLE 51 6142402856 GEAR DISC TABLE 52 411 155 1901 SCR PAN W2 6X5NM 01SC TABLE MOTORMTG lEF NO PART NO DESCRIPTION 53 411 0209902 SCR S TPGBRZ FLG 3X8MM CHUCKING OETECTOR SWITCHP C BOARO 54 6201230772 SCREWWASHER 2 6X6X0...

Page 35: ... CN603 5P 9P i l ml w I II CN504 I IR P C B 2 CN256 3P Uuuuu Uuuuuu MAIN DISC TABLE 1 MOTOR P C B CHUCKING SW TCH I C B Cyy pP CNOOI Cyy CNO02 3P 3P Wfi 1 I Fuk nr Ill I P C B CN11O 2P k CN107 E2 3P CN721 L CN113 2P RESET P C B I I I I REGULATOR x rr g c POWER TRANSFORMER SECONDARY P C B CN71O REO BLACK tlD ll 3P Cp _ POWER TRANSFORMER CN 709 5P PRIMARY P C B CN70A POWER AMP IY t P C B J POWER TRA...

Page 36: ...ATOR T I 1 1 u 1 I I b 3 ASO PTd CClOf Currrd R wancr Llmiirf Stortw voltage Omaaibl Erfaf itirr 3 wTPLJT i u CHIWT 1 CH2WT Vr lH 2 Vr tL Avm 3 Am Dv 4 XIYJ1 BCLK 5 XIN DATA 6 x CLKWT Ll cu 7 A mm a TEST 8 a3 r 1 TEST u ATT 9 1 TEST SHIFT 1 1 MmE LATCH 1 t 1 SDC I INITB I I S4X2 TEST I 1 D N EWH2 I I El l I ICI08 L79M05 5V RECWIATOR FM IF I IN IN IC201 IAl 265 TUNER SYSTEM Vcc AM RF AM R F ...

Page 37: ...ER 5K KIN XIIJT FMIN MIN CC CL DATA 801 002 B03 ml mz Vml VC92 Vss IC501 601 BU4051B ANALOGURE MULTIPLEXERS DEMULTIPLEXERS 5 All I I x 39 Fx CLOCK CONTROLLER dOOHZ1 KIN xWT s XTAL OSC 7 21wZ1 FMIN AWN Lm AL 05clLLAT1U4 sIw4M xww CO CL DATA z DATA IWUT Bol 802 Bm BAW DATA OUTPUT VC9 I VCC12 VSS P0w2R WPLY I VM2 IS BAcK W BATTERY PO1 W2 CWRG CUTPUT i IFWBI1 4 B c m SWI CH L L L L Xo L u L L xl L L H...

Page 38: ...01P DOLBY B TYPE NOISE REDUCTION IC502TC9153AP ELECTRONIC VOLUME Wo L c n L IN L W XQj m I IC901 LB1403N LED LEVEL METER Ml m am ml l w t Vcl Vcz Vc3 Vcb ONo VC5 IN Vcc I tl lN VCc PEI J ONIIYF LIWW1 RECOu IC900 NJM78L05A 5V REGULATOR I L L T I 1c951 L7B12ML VOLTAGE R ULATOW m GNo 40 ...

Page 39: ... m123456789101112131415b I NO COM 1 COM 2 COM 3 COM 4 NO COM 1 COM 2 COM 3 COM 4 1 CONT ALL t ONE REPEAT 17 INTRO 5b C 5g 2 13 14 15 b 18 6f 6g 6e 6d 3 12 11 10 9 19 6a 6b 6C MONO 4 5 6 7 8 20 7f 7g 7e 7d 5 4 3 2 1 21 7a 7b 7C FADE 6 SLEEP WAKE UP TIMER REC 22 RANDOM TIME 7 COMP REC LEVEL DISC PROG 23 8f 8g 8e 8d 8 lh la e f 1b c Id 24 8a 8b 8C EDIT 9 2f 2g 2e 2d 25 9f 9g 9e 9d 10 2a 2b 2C ST 26 9...

Page 40: ... E 1 I I T t iittll w 01 _ Hil I I t co I 0s 3 I L I t ...

Page 41: ... m u a u w z 3 1 l ...

Page 42: ... I 1 I 1 1 I I I 1 I I 5 CN603 Ezl Lymic RE REc R TA L 1A R SYNC I 1 1 I I l hI I w II I I I l I L I I I l ___ _ _ l I II I I I I I ...

Page 43: ...w lRINGDIAG M AMp j TuNER PCB CN2L2 TUNER PCB C 2L1 C m 48 49 ...

Page 44: ...I I I 1 II I I D 1 1 1 1 I 1 Ilr r I i r 7 i l i NOIL33S 3WWd 01 I II I rzllt tt Q I h k k k k I t C d 6 9kk L d3 9 j i u J n dn 10A MI EA3 I ZA3 I ih3 i ON9 OA3M AS Is Asm 0013 13s3ti 311W3Md J09N3 L 5u w6sLadl 1s 31 lr t ZS21d Isnd 1 OMNOS C M3Nfll WVW3VKJ 011vw3HC S ...

Page 45: ... 1 Xtal Out 4 194304 MHz I o I I I 19 INC I S301BP6 Not Used Open IO IOPENI 60 S4 12H 24H P60 KRO Select Signal for CLOCK 24H Open 12H V5J I 61 S5 AM IF P61 IKR1 Select Signal for AM IF SET Open NOT VSS I TUNER 62 S6 O S P62 I KR2 Select Signal for D S Series SET Open NOT V I 63 0 MONO P63 KR3 Compulsion Monaural For D Series ACTIVE HIGH LEVEL o TuNER 64 DOO P70 KR4 Data Signal from LM7001 For O S...

Page 46: ...i I Cn P TO FRONT L Q III _ I I 1 I I B r 1 I I I HEAOPHONE ...

Page 47: ... ti E id Lr3_ g Ili9ii L I 1 0s61 Woiavav 0 18d ld p J Ii I i DIM u S60WV0 I wav X18 SW m ix g a I h ...

Page 48: ... 1 t I I 1 II R IttlT 1 1 1 1 I 1 k i 1 t T rx Isl r T1 w I I I i I I m LI T 1 1 I I 1 I 1 I I m oo mm 1 1 I I I 0 I I m Z 11 m r m L ...

Page 49: ...RING DIAGRAM TAPE DECK FRONT PC B CN503 CN504 i cNO O F L CH R CH E HEAO RIP HEAD I C B lg i i TA U b L CH R CH PLAY HEAD TAPE B S008 g STOP TAPE MECHANISM 60 61 1 ...

Page 50: ...I I I I L _ II I ri m4tw43 m Ilr mlllll w I n WYO FC1l W ill L r a 1 J 1 I ...

Page 51: ... AO 0 3 Al 1 I PuI fTOIIl VCO OUI U1 i LAW 10 36MHz Ph se ccNnP s Yn C Utmn of VCO and EFM signal 4 PDO 0 5 Vss GND 6 3 0 N 9atlve c PW thtough am tvde limiter A tiptw e of This gn 1 me SLICE LEVEL CONTROL 7 P nitive omput through mohwde biter AntiPhase d EFMO EFMO 0 This 3 1 e SLICE LEVEL CONTROL 8 Irw mting HF signal d l 2Vp p lhi d ine SLICE LEVEL EFMIN 1 CONTROL 9 TEST I e 1E57 Normal imw 5 mm...

Page 52: ... 1 m IE5i m m l q c c 3 D II 0 0 on go GO to 0 0 Go o z El El mmm z 7z I I_ ...

Page 53: ... i L x J I m w ...

Page 54: ...3OV L1OA HOISISNVH1 Oz s cl x 0 0 0 e 0 _ y 0 0 6 1 cl FL 0 0 0 0 0 0 1s 9 u 9Z 52 Vt Sz 22 lZ Oz 61 81 11 0 u d 0 0 0 05 W V 0 SC St 0 i z 0s O Oz A ld 0 0 0 0 05 et 0s 0s O Ot c w 9i St t Cl c1 IL Qb 6 s L 9 s g r ON w LKI IE88LX S0131 SC 0 51 8 0 0 Co s z__ J s t s z 0 0 0s Vz 0s 0 0 0 do m 9 29 9 m 65 us lS 9s w u 5 K 1s 0 6 ON u d 5 0 0 0 0 t 2L 41 Z l sf V SC s 0 52 cc A 4 s z o 10 Sz s S z ...

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