Kenwood-DPSG7-cd-sm 电路图 维修手册.pdf
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1、COMPACT DISC PLAYER DP-SG7/SG7G SERVICE MANUAL 1999-7/B51-5542-00 (K/K) 2299 70% 60 repeat7 ?4 1? ? ? timespace compact disc player D.R.I.V.E.with 24bit D/A converter on/standby 24bit Fine D.R.I.V.E. 603616617 651606604650 OPTICAL SYSTEM CONTROL DIGITAL OUT PLAY OUT RL AC power cord * (E30-) Oscilla
2、ting module (W02-1114-05) Phono jack (E63-0122-05) Metallic cabinet (A01-3313-01) Power cord bushing (J42-0083-05) Rectangular receptacle (E08-0312-05) Illustration is DP-SG7. * Refer to parts list on page 15. In compliance with Federal Regulations, following are repro- ductions of labels on, or ins
3、ide the product relating to laser product safety. KENWOOD-Crop. certifies this equipment conforms to DHHS Regulations No. 21 DFR 1040. 10, Chapter 1, Sub- chapter J. DANGER : Laser radiation when open and interlock defeated. AVOID DIRECT EXPOSURE TO BEAM Refer to DP-SE7 service manual (B51-5371-00),
4、 if require the circuit description. Indicator (B12-0318-04) Panel (A60-1671-03) Panel (A29-1058-03) Knob (POWER) (K29-6741-04) Front glass (B10-2372-03) Knob (K29-7571-03) SUB panel (A22-1778-31) RadioFans.CN 收音机爱 好者资料库 DP-SG7/SG7G 2 CONTENTS / CAUTIONS CONTENTS / CAUTIONS. 2 DISASSEMBLY FOR REPAIR
5、.3 ADJUSTMENT.4 PC BOARD . 5 SCHEMATIC DIAGRAM . 7 EXPLODED VIEW .13 PARTS LIST.15 SPECIFICATIONS .Back cover Contents Operation to reset The microcomputer may fall into malfunction (impos- sibility to operate, erroneous display, etc.) when the power cord is unplugged while power is ON or due to an
6、external factor. In this case, execute the follow- ing procedure to reset the microcomputer and return it to normal condition. DP-SG7 Pull the power plug from the receptacle, and then plug it in again. ?Please note that resetting the microcomputer clears the contents stored in it returns it to condi
7、tion when it left the factory. Cautions RadioFans.CN 收音机爱 好者资料库 DP-SG7/SG7G 3 DISASSEMBLY FOR REPAIR How to open tray if not comes out. 1. Insert screwdriver to hole on bottom plate and turn screw clockwisely about 100 (1). 2. Pull tray out by hand if tray comes out (2). RadioFans.CN 收音机爱 好者资料库 DP-S
8、G7/SG7G 4 ADJUSTMENT FIG. VC CN3 L.P.F. + + L.P.F. VTVM VTVM 1 2 3 4 5 6 7 1.2 kHz 50 mVrms RF FE1 FE2 VC TE2 TE1 S.S + _ (a) No.ITEM INPUT SETTINGS OUTPUT SETTINGS ALIGNMENT POINTS ALIGN FOR PLAYER SETTINGS 1LASER POWER Apply the sensor section of optical power meter on the pickup lens. On the powe
9、r from 0.08 to 0.15 mW, when the diffraction grating is correctly aligned with the RF level of 0.6 Vp-p or more. Press the PLAY/PAUSE key, then confirm that the LED is 03. ALIGNMENT POINTS Pickup 3 FOCUS ERROR BIAS Test disc Type 4 Connect an oscilloscope as follows. CH1 : RF (CN3 pin 1) CH2 : TE (C
10、N3 pin 6) FE BIAS VR2 Optimum eye pattern Press the PLAY/PAUSEkey, then confirm that the LED is 05. Note: Type 4 disc : SONY YEDS-18 Test Disc or equivalent.(KTD-08) LPF: Around 47 k+ 390 pF or so. Step 14 are in Test Mode. 0.080.15 mW Optical power meter 2 TRACKING ERROR BALANCE Test disc Type 4 Co
11、nnect an oscilloscope as follows. CH1 : RF (CN3 pin 1) CH2 : TE (CN3 pin 6) TE BALANCE VR1 Symmetry between upper and lower pat- terns Press the PLAY/PAUSE key, then confirm that the LED is 03. (e)4TRACKING GAIN Test disc Type 4 Apply signal of 1.2 kHz, 50mVrms to CN3 pin 5-6. Connect a LPF to CN3 p
12、in 5-6 to which you connect an oscilloscope or AC voltmeters. TRACKING GAIN VR3 Two VTVMs should read the same value. Press the PLAY/PAUSE key, then confirm that the LED is 05. While pressing the REPEAT key, turn the AC ON. Refer to test mode (MODE 0 0) (e) Tracking gain(a) Laser power T-GAIN VR3VR1
13、VR2 CN1 TE-BFE-B ACEGIBDFHJ 2 1 3 5 7 4 6 Refer to the schematic diagram for the value of resistors and capacitors. PC BOARD(Component side view) 56 CD PLAYER UNIT (X32-3600-00) ELECTRIC UNIT (X25-6100-01) DISPLAY UNIT (X14-4760-21) ABDFHJCEGI 2 1 3 5 7 4 6 VCC 0.047C2748TRK+TEI VCC 3 C6 2200P 29 FO
14、CUSING COIL TRACKING COIL R13 68K 3.9K 47uH 47uH OPEN SW3 4 5 +LM GND 2 1CLOSE SW -LM 16 15 14 13 VCC VC D E VCC VCC Q1 47u4 C2 10 R14 + R4 20K 18P C3 3.3K R15 GND8 TRK(-)2 1FCS(-) TRK(+) 4 3 FCS(+) SHORT LAND 6 5PD VR 7LD 10 12 11B A C 10uH L1 13 C 9 10 F A B 11 12 +5V +2.5V D 15 14E VCC 16VC 9 8GN
15、D F 6 5 7 4 -VPD LD FCS+ PD 0.022 9.1K 33K R11 68K 1M R8 VR2 R5 4.7K C1 220K R10 68K R12 68K C5 0.01 R16 24K R17 R9 34 35 36 C4 3P 32 33 30 31 62K 47K75K 100K 20K R3 R2 R7 R6 R1VR1 39 FE.B PD1 PD2 E F 38 37 RFM LD PD RFI RF0 41 VEE EI 40 LRFI TEO 43 42 VDD R52 470 R51 470 470 VCC 1K1000P R44C35 22 V
16、DD C40 C7 0.01 C827 28 25 26 XRST C.OUT SENS CC2 CB CP FOK CC1 55 54 23 24 CLK XLT DATA 20 57 21 22 59 19 C28 0.1 + 22u6.3 AVDD 27 34 MNTO XTAI C36 1000P 33 RFCK C2PO XROF MNT3 MNT1 30 31 32 28 29 XTAO XTSL FSTT C4M 36 100K R45 35 100 37 38 18 BCK GTOP XUGF XPCK VDD GFS 24 25 26 21 22 23 LRCK PCMD 2
17、0 WDCK ASYEVDD 19 ASYO ASYI 17 16 BIAS RF 15 14 43 DOUT EMPH WFCK VSS SCOR R55 40 39 40 43 41 42 SBSO EXCK SUBQ SQCK MUTE 46 44 45 47 46 47 PCO 12 CLTV 13 AVSS VSS 11 10 FILI FILO 9 8 TEST LOCK 7 6 5 3300P C41 VDD 0.47 100K R50 R49 1M 1500P C39 0.01 3.3K C38 10K R48 R47 3.3K R46 +7V 2 1FCS- TRK- TE2
18、5 7 6TE1 S.S 4 3 2 FE2 VC FE1 C13 0.47330K R19 1K100 R18 330K R20 R22 47K C12 47P 47K VR3 0.01 C9 R21 4700P + 47u4 C10C11 47 TZC ATSC 45 44 TDFCT 46 FDFCT FEI FEO VC 48 3 2 1 SRCH EFM FEO FLB FGD 6 5 4 8 7 3.9K100 R25 6.8K R24R23 R26 1.5M C17 10u4 1 C15 1 C14 22K R27 0.1 C16 R28 680K + 1RF MOTOR SLE
19、D MOTOR SPINDLE C20 220P 1M R29 1000P C19 R32 1.5M R31 120K R30 120K C21 0.047 28 27 26 25 23 24 21 22 +7V 20 18 19 17 TRK- TRK+ TRK(10K) TRK(NC)FCS(10K) FCS- GND FCS+ 1 2 3 4 +5(IN) REG MUTE DM(NC) GND DM(IN) DM+ DM- FCS(NC) VC VCC SLD+ SLD(NC) VCC SLD(10K) SLD- +7V 6 5 8 7 9 11 10 12 0.1 C32 22u6.
20、3 C33 SL+ SL- SLO ISET R39 240K 17 18 14 15 16 TAO TAM FSET TG2 TGU 11 10 9 12 C25 0.01 R36 22K R35 100K 13 100K VDD C26 R38 0.01 100P C23 82K R34 C22 0.01 R33 510K C18 0.033 R37 18K C24 10u4 + VCC 6.8 R56 4.7K D+5V 57 SENS XRST DATA 0.1 49 49 50 C34 51 51 CLOK XLAT DATO CNIN SEIN 53 52 56 55 54 52
21、53 55 54 SPOD CLKO VDD XLTO SPOC SPOB SPOA MON MDS MDP 4 3 FOK XLON 2 1 VDD 60 59 58 63 62 61 59 57 64 C44 0.01 VDD C43 0.1 R54 4.7K C42 22u6.3 + R57 120 D+5V C31R43 R40 R42 5.6K0.033 R41 4.7K 180K +7V 15 16 C37 VDD 223 402 1 205 4 BCK EMPH MCK LRCK PCMD 5110 + R58 6.8 46 47 7 6 52 53 9 8 D+5V 49 43
22、 11 12 DATA SUBQ SQCK LAT CLK SENSE SCOR 15 13 14 16 17 D+5V18 19 +7V20 RST MON C4M DOUT DGND D+5V MGND +7V C30 10u10 GND OUT +IN -IN +7V 13 14 0.1 C29 +7V + +7V 0.033 R53 VDD 20 (BOTTOM VIEW) MOTOR LOADING LD CB F PD AD E LM OPEN/CLOSE SW LAZER DIODE ON/OFF APC Q2 OFF-SET Q3 FOCUS D1 FE-BIAS Q1 TE-
23、BALANCE RF/SERVO CONTROL FOCUS OFF-SET D3 D2 Q4 (BOTTOM VIEW) DSP FEEDDISC MOTORMOTOR DMFM CN1 ADJUSTMENT T-GAIN S1 CN3 D5 (BOTTOM VIEW) 4CH BTL DRIVER D4 CN2 : DTA124EUA or UN5112 : 2SA1576A(R,S) or 2SB1218A(Q,R) : 2SC4081(R,S) : CXD2507AQ 1 : CXA1782BQ 1 : DA204U : MA111D1-4 D5 Q2 Q3,4 : BA6398FPI
24、C3 Q1 IC1 IC2 IC2 PICKUP (KSS-213C) (D40-1571-05) MECHA. ASSY (KSL-213CGN) IC1 (X32-3600-00) CD PLAYER UNIT IC3 3.3V 3.4V 2.4V 7.1V 2.4V 3.5V 3.2V 2.5V 7.1V 2.5V 3.5V 3.6V 2.3V 3.1V 3.6V 2.4V 2.4V 2.4V 2.5V 2.4V 2.6V 2.4V 2.4V 0.8V 2.4V 2.4V 2.4V 2.4V 2.4V 2.4V 2.4V 2.2V 2.4V 2.4V 0V 0.6V 2.4V 2.4V
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