Denon LA-3500 Service Manual Download Page 1

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Summary of Contents for LA-3500

Page 1: ...0 TRAY I DRIVE UNIT 77 VIDEO 41 PICK BASE I TRAVERSE 78 79 SEMICONDUCTORS 42 57 CIRCUIT BLOCK DIAGRAM 80 84 P W B ASS Y PARTS LIST 58 68 SERVO 80 2U 2570 MAIN UNIT 59 62 AUDIO 81 2U 2571 SUB UNIR 62 6...

Page 2: ...register This video producl should no1 be placed In a bull1 in lnstallalion such as a bookcase or rack unless proper ventilation is p1ovided or tho manu fac1urer s instruc1ions have been adho1e to 10...

Page 3: ...tion of each individual disc for high p1ecision control of the servo section This provides high tracing capacities playability and reduces access time 5 CD G CD graphics compatible 6 Numerous function...

Page 4: ...emperature in the room Increases suddenly If 1his happens the laser beam w ill not be able to read signals and discs will not play Depending on how heavy the dew is leave the power on for one or two h...

Page 5: ...1andard laser disc marks Players and discs including these laser disc marks are compatible as long as they are designed fo r the same TV system There are two types of laser discs depending on the way...

Page 6: ...OPTICAL DIGITAL OUT jack to he amplifier s digilal input jack OPTICAL using an optical fiber cord available in stores The DIGITAL OUT jack can only be used for connection with an optical 1ransmission...

Page 7: ...li1 1fram e modes with LDs and the video part of CDVs turn the dial clockwise to move step by step in the forward d 1 rect1on counterclockwise to move step by step in the reverse direction When tu med...

Page 8: ...rs on side A while the lower bar indicates programmed chapters on side 8 Pause indicator Chapter and track indicators I Channel indicators I This lights when in the pause mode These indicate whether t...

Page 9: ...ries in flames If the batteries should leak carefully wipe off he battery fluid from the ba nery compartmen1 and insert new batteries CD Remove the rear lid of the remote control unit i lnsen two ASP...

Page 10: ...fect on the p1c1ure tSee Pnge 33 l Auto edit button AUTO EDIT I I Digital FNR Field Noise Reduction button DIGITAL FNR Use this for editing acco1d111g 10 1he length of the 1 ape See Page 31 f Fluoresc...

Page 11: ...I playing time are dtspla ed for both s1des A and UOIO IOEO Music calendar uo1 0 r Total playing time Total number of tracks Checking During Playback h ON SCREEN bu 1on on the remo 3 shown below each...

Page 12: ...e display window appear on D 10E a Once the end of or if playback side A is reached middle of side 1 s p d in lhe urns to side A an pickup re 1 s set d 1he stop mode Switching to th Press the SIDE e o...

Page 13: ...k or during the pause or still frame mode During playback Sound is only produced during normal playback In the pause or still frame mode NOTE No sound is produced even at the normal playback position...

Page 14: ...aher playback begins on the opposite side If a frame number not recorded on the disc is specified playback begins from a point just before the end of the disc 7 Selecting a Specific Section Using the...

Page 15: ...Channel 1 is cleared COG CHAH IELS COG G Ar IN H S 00 1i t COG CHANN LS H 01 on Display window IrH r i f I L f 1 on H 0 loFF To return to the normal mode press the COG CH MODE bu11on again Returning t...

Page 16: ...r O is not played in the random play mode 7 Auto Edit Function When recording onto a cassette tape the auto edit function can be used lo specify the casselte tape s recording time and automatically pr...

Page 17: ...playback also resumes if the SHUTILE ri ng is turned NOTE This function will only work for 1he currently playing side of LDs and the video part of CDVs 11 Art Playback ILDs and CDVs video part With t...

Page 18: ...t number Press the SIDE B button then press number button ill Be sure to press the side buuon before specifying the chapter number Press the SIDE A button then press number button fil Press the play p...

Page 19: ...edly een two specified points i playback press the which tton at the point from repeatrnog want 10 start Repeat start point A stored In the memor s lol OLLI For instructions 0 n programmed pla b Y ack...

Page 20: ...e player was connected or there are stripes on the picture 6 Remote control unit does not work 7 TV malfunclions when lhe remote control unit is operated B Oise turns but picture does not appear or pi...

Page 21: ...hat unst ward and reverse scanning able but this is not a malfunction Press the STOP button to stop the disc then press the play pause button again Repeat this until the disc s1 arts Same as 15 above...

Page 22: ...Use care Top Cover j J 2 Front Panel Exploded View 1 2 1 Plug AC cord in wall outlet press OPEN CLOSE button to open the Loader Panel and then unplug the AC cord 2 Remove 3 screws 3 Remove 2 screws of...

Page 23: ...en the Shaft Coupler Pull Gear B and Pulley Gear upward Shaft Coupler 7lf Assembly of the loading unit is critical and unless the work is done properly con invite malfunction GEN 2420 Tray drive Left...

Page 24: ...the belt is clean and free of grease First Gear Tip t Control Gear Gear B Concave Slit Washer Cam Stopper Slide Cam Left Cl Drive Base Ass y 6 Confirm the concave of Slide Cam Left is seated at the p...

Page 25: ...Lock Lever to the rectangular window a Tray Guide left GEN Ass y installation mode 8 Set Guide Pin Groove of Tray Guide Left GEN Ass y to the cut and of Drive Base Ass y and install the Tray Guide Lef...

Page 26: ...e Ass y G 11 Insert Door Arm to the Shaft At this time set the Round Boss of Door Arm to the hatched section of Tray Guide Lief GEN Ass y shown above 12 Set Door Arm Spring to the Shaft as shown below...

Page 27: ...mode install Tray Guide Right GEN Ass y and set Lock Lever of Slide Cam Right Ass y as per Figure b above Clamper GEN Ass y Assembly mode GEN 2424 Clamper GEN Ass y Assembly For disassembly reverse A...

Page 28: ...urn power OFF and unplug the AC cord Note If the tray is pushed by hand the gear meshes off and invites malfunction 2 Push left rear hook hatched section of Tray Ass y to arrow direction at left front...

Page 29: ...the Tray Ass y front end slightly lower and insert the tray until the end strikes the Roller White Check both left and right rear of the Tray Ass y strike the Roller White and after confirming it hol...

Page 30: ...P W 8 or Sub P W 8 Assembly 1 Set 3 P W B connectors and push the P W B s 2 Set 5 P W B holders to holes 3 Check the P W B connectors are inserted securely with the tester Caution Form the 13P FFC co...

Page 31: ...pull Pick Base up clearing Guide Shaft A Caution Use care do not lose Belt Clamper Pull upward Shaft Holder Screw Caution Do not remove the Shaft Holder B adjustment screw of Switch Base 1 Figure 2 O...

Page 32: ...b Height Base Height Motor Figure 3 1 Insert Belt Clamper to the concave of Lead Belt Pulley slowly move Belt Pulley so that Belt Clamper appears in the hole of Traverse Base 2 Set Guide Shaft to Pick...

Page 33: ...Remove 2 screws b 3 Detach Height Base sideward Concave of Height Base and Boss of Link Plate are meshed Slightly move Pickup upward When install the Height Base move the Pickup upward and insert the...

Page 34: ...2U 2570 2U 2571 2U 2573 2 SGK 0070 15 Pin Extension Cord Front Panel b Remove Tray Connect Plate Clamper Plate and Slide Guide Plate c Remove Front Panel Regulator P W B 2U 2573 2 and take P W B Ass...

Page 35: ...Sensor GP2TD01M After changing the tilt sensor adjust from 1 CD tilt sensor balance to 2 CD focus gain and tracking gain all over 3 Location of adjustment on the P W B Rear Panel Side MAIN P W B 2U 25...

Page 36: ...illoscope to TEO 2 Playback chapter 7 8 of Test LO MTD 04 CAV B and set the unit to pause mode 3 Adjust tilt sensor adjustment screw so that kick pulse Figure 10 amplitude reads maximum Grating Hole T...

Page 37: ...d playback 3 Search chapter 3 and set to PAUSE mode 4 Instrument Oscilloscope X 5mS div Y 50mV div 2U 2570 TEO GND Adjust VR001 Semi fixed resistor Tilt balance B 1 Set VR002 to center position 2 Push...

Page 38: ...7 After 6 10 second press AUDIO MONITOR and confirm 2 R lights and flickers on display Tracking gain adjustment 8 After 6 10 second press AUDIO MONITOR and confirm 1 L 2 R and light automatic adjustme...

Page 39: ...e the unit on the fixture and connect oscilloscope Main Unit Front Side Figure 11 2 Playback track 1Oof CD Test disk TCD 725 By playing back track 10 tangential roller A Figure 9 adjustment screw appe...

Page 40: ...ttom plate Figure 12 5 Insert grating adjustment pin to the hole of bottom plate B refer to Figure 15 and fine adjust the pin so that the maximum amplitude is read Figure 1OJ Figure 15 Grating Hole 6...

Page 41: ...end to oscilloscope VI DEO OUT 4 Instrument Oscilloscope 10 20 1sec div 0 5V div AC Range 5 Stop 6 Turn power OFF Adjust VR801 Semi fixed Resistor in 2U 2571 By the adjustment video output level is 1...

Page 42: ...Positive logic 33 LDSPDRV 0 LO spindle drive output PWM output 3 state 34 HITDRV 0 Height drive output PWM output 3 state 42 33 32 1 7 16 Pin Symbol 1 0 Function No 35 TRVDRV 0 Traverse drive output P...

Page 43: ...signal CRC CUE CLVS TTSTOP FCLV SOOK 17 FLAG 0 Flag output terminal 48 CRC 0 Subcode CRC check result H OK L NG 18 IPFRAG 0 Interpolation flag H Interpolation 49 SUBC 0 Subcode serial output data 19 F...

Page 44: ...IN Composite sync signal input terminal Input on TTL level At L G 0 8V SYNCH H 2 0V 11 C SYNC OUT Composite sync signal output terminal Able to drive directly load of 75ohm 12 Vcc1 Power supply termin...

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Page 47: ...itch which compensate drop out 10 SINR on Reh side Output of 9 pin is input through capacitor 11 DOCR Outputs drop out demodulated signal External capacity works as hold capacitor 32 DOCL Outputs drop...

Page 48: ...5 Vss GND terminal 6 NC 7 NC 6 B MDT IP Mode set data 7 9 MCK IP Mode set clock Performs setting of digital attenuator and mode flag register B 10 MLE IP Mode set latch enable 9 11 RST IP System rese...

Page 49: ...bit alternate output 41 NC 64 Remarks Every Vee and GND pins should be connected to the system s Vee GND IC M881C1501 IC803 804 TOP VIEW TRo ADDo TR 1 ADD 1 TSM ADD2 CKR 1 Do 10 Do 11 Do12 VCLR1 i j I...

Page 50: ...P07 I L tRST Microcomputer reset 30 POS 0 H SCLK Serial clock signal 31 P04 0 N C Not used 32 P03 0 H A SBOI serial data 50 Pin Symbol 1 0 Active Name Function No 33 P02 0 pCLK SBTO serial data signa...

Page 51: ...tput 19 Deemphasis input Selection control terminal of CMP HSYNC terminal input signal Inputs high level when selecting composite sync signal input inputs low level 20 FM demodulation control 15 CTL I...

Page 52: ...output terminal 19 Power supply 2 5V 20 CROSS output terminal 21 OFTR Output terminal 22 Reference power supply 1 4V 23 Reference power supply 2 2 5V 24 Reference power supply 3 1V 25 Power supply 3...

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Page 55: ...put DQ1 DQ2 W rite Specify Input w Line Address RAS Strobe Input r Address Input AS A4 Vcc Sv Block Diagram 18 BIT R2R Vss OV DQ4 CAS REF CONSTANT POWER SUPPLY SEGMENT NETWORK CLOCK DATA LE 18 BIT SER...

Page 56: ...ap Diode FC54M Cathode Aoode c 1SR35 200A HZS 30 1 HZS 7C 1 Blue RL2Z 2SC1384 3 Base 2 Collector 1 Emitter 2SA1488A 2SA1567 2SC3851A 3 Emitter 2 Collector 1 Base 2SA933 Q R S 3 Emitter 2 Collector 1 B...

Page 57: ...CDG 12 12 12 12 12 12 m 6 8 10 12 14 16 14 14 14 14 14 n 14 Note For some reasons SB is not existing UPPER TERMINAL No 104 103 102 101 100 99 98 97 96 95 94 93 92 91 90 89 ELECTRODE F2 F2 NC NC NC NP...

Page 58: ...Units ohm R 2 1 2 ohm T L _ 1 digit effective number 2 digit effective number decimal point indicated by R Units ohm Capacitors Ex CE 04W 1H 2R2 M BP Type Shape Dielectric and per strength formance C...

Page 59: ...00 Transistor UN2215 TR302 928 0036 701 Transistor 2SD601A TR701 70c 273 0393 001 Transistor 2SC3851A Y G TR704 70 2710246000 Transistor 2SA1488A Y G TR707 7m 273 0421 009 Transistor 2SC1384 TR710 273...

Page 60: ...0008 928 247 0004 980 247 0009 901 247 0007 945 247 0007 945 247 0009 901 247 0006 920 247 0008 083 247 0010 929 247 0014 938 247 0009 969 247 0012 969 247 0012 927 247 0018 905 247 0011 944 247 0018...

Page 61: ...E04W1 H01 OM C233 2561034 076 Metalized 0 1 F 50V CF93A1H104J C034 254 4252 927 Electrolytic 47riF 1OV CE04W1A470M C234 257 0014 935 Chip Ceramic 0 1 F 25V CK73F1 E104Z C035 036 254 4252 927 Electroly...

Page 62: ...NJM4556MB L202 235 0060 921 Inductor 1S H L301 235 0070 924 Inductor 27 H L701 232 0176 007 Choke Coil 94uH ELC15EOOS TR401 928 0036 701 Transistor 2SD601 A TR402 928 0022100 Transistor 2SC2295 LC001...

Page 63: ...415 247 0012 943 Chip 120kohm 1 10W RM73B 124J R530 247 0009 927 Chip 5 6kohm 1 1OW RM73B 562J R416 247 0012 927 Chip 100kohm 1 10W RM73B 104J R531 247 0009 943 Chip 6 8kohm 1 1OW RM73B 682J R417 247...

Page 64: ...29 Chip 820ohm 1 10W RM73B 821J R86S 247 0006 920 Chip 330ohm 1 1OW RM73B 331J R689 247 0018 90S Chip Oehm 1 10W RM73B OROK R868 247 0004 977 Chip Sohm 1 10W RM73B 750J R691 692 247 0011 944 Chip 47ko...

Page 65: ...Z C422 257 0012 966 Chip Ceramic 0 01 ftF 50V CK73F1 H103Z C629 630 254 4368 934 Electrolytic 100 F 25V CE04W1 El01 M ASF C423 254 4252 930 Electrolytic 1OO F 1OV CE04W1A101M C631 634 254 4356 001 El...

Page 66: ...ductor 10pH C840 841 257 0014 935 Chip Ceramic 0 1r1F 25V CK73F1 E1042 L801 235 0070 940 Inductor 39pH C842 254 4252 930 Electrolytic 100ftF 10V CE04W1A101M L802 803 235 0070 924 Inductor 27 H C843 25...

Page 67: ...S1 WB A D721 722 276 0386 017 Diode S2VB20F RESISTORS Not included Carbon Film 5 1 4W R750 244 2064 932 Metallic film 3 9ohm 1W Bipolar RS14B3A392JNBS CAPACITORS C720 722 2531053 003 Ceramic0 01 F 50...

Page 68: ...LA 3500 2U 2572 SWITCH UNIT Ref No Part No Part Name Remarks 212 1114 006 SWITCH 203 4935 000 3PSANConnector Cord 205 0702 068 7PFFCConnector Base 68...

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Page 91: ...LA 3500...

Page 92: ...NIPPON COWMBIA CO LTD 14 14 AKASAKA4 CHOME MINATO KU TOKYO 107 11 JAPAN Telephone 03 3584 8111 Cable NIPPON COLUMBIA TOKYO Telex JAPANOLA J22591 Printed in Japan 405 IBU I0432...

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