Kenwood-KDVS-220-P-Service-Manual(1) 电路图 维修手册.pdf

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1、 2004-5 PRINTED IN JAPAN B53-0171-00 (N) 2703 DVD PLAYER KDV-S210P/S220P /S230P/S240P SERVICE MANUAL Size AAA battery (Not supplied) Remote controller assy (A70-2066-08) Panel assy (A64-3526-08): KDV-S210P (A64-3528-08): KDV-S220P (A64-3529-08): KDV-S230P (A64-3530-08): KDV-S240P Tapping screw (N09-

2、6274-08) x4 Magic tape (H30-0514-05) x2 Remote control sensor assy (6m) (T95-0264-08) Mounting hardware (J22-0237-08) x2 Metallic cabinet (A01-2845-08) Cord with DC plug (2.4m) (E03-0405-08) Cord with pinplug (3m) (E30-6389-08) SEMS (N09-6273-08) x4 RC-DV500 Except KDV-S210P RadioFans.CN 收音机爱 好者资料库

3、2 KDV-S210P/S220P /S230P/S240P BLOCK DIAGRAM PROCESSOR -DIGITAL SERVO CONTROL DVD/CD DATA DECODING SU6 SU1 SU3 MOTOR DRIVER PWM SU2 BTL MOTOR DRIVER HEAD AMPLIFIER -GENERATING SERVO -AUTO GAIN CONTROLLING S+7V MMVC MVCC DECODING & CORRECTING -F/E CONTROL uP -DATA BUFFERING SVCC -F/E PROGRAMING FLASH

4、 MEMORY 3.3V RFVCC 3.3V VCC27 RFVCC -DATA BUFFERING DVD MPEG DECODING PROCESSOR -MPEG DECODING -B/E & SYSTEM CONTROL uP U1 SU7 -B/E FRAME SDRAM -DVD/CD DATA U34 CIRCUIT LASER DRIVE SQ4,5 U3 -F/E FRAME BUFFER SDRAM 1Mx16BITS -WORKING MEMORY ACTUATOR & BRUSHLESS SY1 -F/E SYSTEM CLOCK 33.8688MHz CERAMI

5、C RESONATOR CODE STORED 128kx8 -B/E SYSTEM CLOCK CRYSTAL RESONATOR 27MHz Y1 VCC27 -INCLUDING OVER 2ch AUDIO DAC U35 DIGITAL FILTER SAMPLING U9 -RESETING RESET IC for U1 STORED -SETUP & RESUME EEPROM INFORMATION U2 U28 CODE STORED -B/E PROGRAMING FLASH ROM VCC33 Q1 MMVC MVCC SVCC 3.3V RFVCC VCC33AVCC

6、 AVCC RESET VCC VCCA S+7V U5 REGULATOR 3.3V FIXED SQ3 +7V S7V VCC VCC +7V U23-1 U23-2 BUFFER U27 POST LPF -2nd ORDER ACTIVE LPFx2 3.3V CB5CBP5 CBP7CB7 CB502CBP502 CB3 CBD3 1MBITx8 BUFFER 4Mx16BITS SERVO SIGNAL RF AMPLITUDE ERROR SIGNALS INSERTION DISC SLIT INDICATOR EJECT SW UD3 NAND GATES POWER SW

7、INDICATOR POWER CBD1CBP1 VCC S7V UP1 REGULATOR SWITCHING REGULATOR SWITCHING UP2 +B1 REGULATOR 5V QP30 REGULATOR QP40 28V CIRCUIT BU VCC -GENERATING TIMING ON/OFF SW DELAY CIRCUIT VCC RESET REDUCING +B1 CIRCUIT MUTE -SENDING DRIVING -MUTE TR +B1 ACTIVE LPFx2 LPF -2nd ORDER UP3-2 UP3-1 S7V MUTE TR QP

8、4,5 UP4 VCC 75 Ohm VIDEO DRIVER TRP1 PULSE TRANS BU VCC EYE INPUT REMOTE DC INPUT ANALOG OUT AUDIO VIDEO OUT COMPOSITE DIGITAL OUT AUDIO REMOTE EYE SPINDLE MOTOR to SLEDGE MOTOR to PICKUP HEAD from SENSOR of ACTUATOR COIL of PICKUP HEAD to to CD LD to DVD LD +B ERROR SIGNAL INPUT RF & SERVO I/O VPA

9、VM PVCC VCC INTERFACE COMMAND DSP CDLDDVDLD DSP COMMAND INTERFACESIGNAL INPUT RF & SERVO CONTROL LOADING MECHANISM OUTPUT SERVO DRIVE SIGNAL INTERFACE FLUSH MEMORY INTERFACE SDRAM AVDD5 INTERFACE ATAPI VDD 3.3 INTERFACE SDRAM INTERFACE ATAPI FLUSH MEMORY EEPROM RESET DIGITAL AUDIO VC25 INTERFACE INT

10、ERFACE INTERFACE SPDIF OUT SPDIF UDAC VIDEO DAC OUT VC33 VCC OUTPUT SIGNAL ERROR RF & SERVO RESET HARDWARE for F/E INCLUDING AUX4 AUX2 AUX7 VCC VDD VOUTR VAA VOUTL VDD ZRR VCC VCC VCC LED RED P DWN P ON +B DWN LED GREEN IR VSW EN VIN VSW EN VIN P ON ZERO MUTE VCC V+V+ CH-R CH-L VCC +B DWN P ON IR ZE

11、RO MUTE SLOT-IN LOADING MECHANISM DISPLAY PCBPOWER & OUTPUT PCB COMBO PCB TRAVERSE MECHANISM RadioFans.CN 收音机爱 好者资料库 3 KDV-S210P/S220P /S230P/S240P COMPONENTS DESCRIPTION COMBO PCB Ref. No.Application / FunctionOperation / Condition / Compatibility MPEG decoding controlDVD MPEG images are decoded. D

12、olby digital decoding controlOutputs of Dolby digital audio are decoded. LPCM audio decoding controlLPCM audio of CD and DVD are decoded. DVD navigation controlDVD navigation is controlled. ATAPI communication controlATAPI communication is control in order to control F/E. U1 Built-in microcomputer f

13、or controlling System as a whole and B/E are controlled. 32bit RISC microcomputer is built-in. system and B/E system Built-in video DACVideo DAC is built-in to output current for composite video output from No. 106 pin. Digital audio DAC control output Audio signals are output from No. 32 (TWS), 33

14、(TSD0), 39 (MCLK), and 40 (TBCK) pins. Also, DAC system control is conducted using No. 160 (AUX0), 161 (AUX1), and 168 (AUX6) pins. Controls for keys and remote control No. 162 pin is input for EJECT key. When receiving input, it is in L. No. 166 pin is for remote control input. When receiving input

15、, there will be pulse input. U2 EEPROM for storing system setting EEPROM for storing system setting information and resume information. information and resume information U3 Frame buffer memoryDecoding data buffer memory. Program memoryMemory for program control. U53.3V regulatorFrom No. 3 pin, VCC

16、(5V) is input and from No. 2 pin, VCC33 (3.3V) is output. U9System reset controlRising/Falling of VCC (5V) is detected by No. 5 pin, and L-reset output is made from No. 4 pin. U23For audio post LPFCH1-side is Rch and CH2-side Lch. Constitutes a multiple feedback-type active LPF. U27SPDIF output, Pul

17、se transformer driver Inverters are connected in 3-step parallel connection for increased current capacity and output to the pulse transformer. U28B/E program memoryFlash memory for storing B/E program memory. U34Program memoryFlash memory for storing programs. Digital audio signal is input from No.

18、 3 (TWS), 2 (TSD0), 16 (MCLK), and 1 (TBCK) pins. U35Digital audio 2ch DACAlso, signals for DAC system control are input from No. 15 (AUX0), 14 (AUX1), and 13 (AUX6) pins. Output for Lch analog audio is made from No. 7 pin and that for Rch is made from No. 8 pin. DVD/CD digital servo controlBuilt-in

19、 DVD/CD digital servo equalizer and various timing generation circuit. DVD/CD data decoding control Data generation from RF of DVD/CD, error correction and control over scramble analysis SU1 and release. F/E section built-in system control F/E section 8bit microcomputer for system control. microcomp

20、uter ATAPI communication controlATAPI communication control with B/E. Pickup actuator driver Control signals for focus and tracking actuator signals of the pickup are received by No. 1 and No. 26 pins respectively and currents are output from No. 13 and14 and No. 15 and 16 pins. SU2Feed motor driver

21、 Control signals for the feed motor is received at No.6 pin and currents are output from No. 11 and 12 pins. Motor driver for slot loading mechanism Control signals for slot loading mechanism motor is received at No. 23 pin and currents are output from No. 18 and 17 pins. RadioFans.CN 收音机爱 好者资料库 4 K

22、DV-S210P/S220P /S230P/S240P Ref. No.Application / FunctionOperation / Condition / Compatibility Spindle motor driver Timing is controlled by No. 18 pin control signal for the 3-phase brushless spindle motor, using SU3No. 16 pins Hall element input signals, while current outputs are made from No 20,

23、22 and 24 pins. Spindle motor rotation detectionRotation FG output for controlling spindle motor is output from No. 27 pin. DVD/CD servo error signal replay Generation of various servo signals from pick up signals. SU6amplifier control Built-in DVD/CD laser APC circuitBuilt-in LD current control cir

24、cuit for DVD/CD. SU7 Frame buffer memoryMemory for temporarily caching read data of DVD/CD. System memoryExternal microcomputer memory for F/E system control. CH1-sideCH1-side Servo reference voltage generationSignal after dividing VC25 (2.5V) into 2.1V enters the positive phase and output from the

25、SU8 amplifieroutput terminal as buffer output. CH2-sideCH2-side RFRP (mirror detection signal)RF bottom hold signal and its DC are input to reverse input and positive input respectively generation amplifierfor canceling DC fluctuation. These then can be used as mirror signals. SQ33.3V regulatorVCC (

26、5V) is input from No. 3 pin and 3.3V is output from No. 2 pin. SQ4Driver for LD-driving for CD CDs LD current control signals output from SU6 are received at base and the current amount for LD driving is controlled. SQ5Driver for LD-driving for DVD DVDs LD current control signals output from SU6 are

27、 received at base and the current amount for LD driving is controlled. THERMISTER PCB Ref. No.Application / FunctionOperation / Condition / Compatibility UT1Inverter Output from UT2 comparator is inverted. Input is made on No. 2 pin and output on No. 4 pin. Active L. UT2Comparator Signal from thermi

28、ster is inverse input and reference voltage is input to positive-phase input. Output from thermister is comparated and output from No. 4 pin. Active H. QT1Switching TR UT1 output is received on the base and output is inverted when it is made. The output is feedback into the positive-phase input at U

29、T2 for containing the fluctuations in outputs. THT1 Temperature detection thermister for Resistance value is low at low temperature and high at high temperature. thermal shutdown DISPLAY PCB Ref. No.Application / FunctionOperation / Condition / Compatibility UD3 Power supply ON/OFF delay circuitWith

30、 +B_DWN of reduced voltage detection circuit and OR of /P_ON signal, /P_DWN NOR gate ICsignal is generated. POWER & OUTPUT PCB Ref. No.Application / FunctionOperation / Condition / Compatibility UP1 VCC (+5V) generation switchingPower supply is input from No. 2 pin and switching output is made from

31、No. 3 pin. regulator ICGoing via choke coil, it becomes VCC (+5V) power supply output. COMPONENTS DESCRIPTION 5 KDV-S210P/S220P /S230P/S240P COMPONENTS DESCRIPTION Ref. No.Application / FunctionOperation / Condition / Compatibility UP2S7V generation switching regulator IC Power supply is input from

32、No. 2 pin and switching output is made from No. 3 pin. Going via choke coil, it becomes S7V power supply output. UP3Analog audio output LPF amplifierCH1-side is Rch and CH2-side is Lch. Constitutes non-inverse active LPF composition. UP4 Composite video output 75 driver Input is made on No. 3 pin an

33、d output is made from No 6 pin. amplifier IC QP1Mute circuit driving TR When QP2 is ON, input is made to the emitter. Mute circuit driving power supply is output from the collector. QP2Mute circuit switching TRWhen this TR comes ON, muting is ON and when it comes OFF, muting is OFF. QP3Mute circuit

34、switching TR This is a TR for switching QP2. Therefore, the logic is inverted and when the TR comes ON, muting is OFF, and when the TR comes OFF, the muting is ON. QP4Rch mute TRWhen base is H, Rch is muted. QP5Lch mute TRWhen base is H, Lch is muted. QP8Composite video output buffer driver TRWhen t

35、he input signal comes in on the base, output is made from the emitter. QP9Power supply ON/OFF delay circuit SW TR When this TR is ON, base current of QP21 is shut off. QP21 is OFF and switching power supply is ON. QP10Mute circuit switching TR When Z_MUTE signal in the base of this TR is active, (H

36、on no signal), QP1 is turned ON and the mute circuit is driven. QP11Mute circuit switching TR /P_ON in the base becomes L when the power switch comes ON. Therefore, it is H when the power is OFF. When this happens, QP3 is forced to go OFF and muting is driven. QP12Power supply ON/OFF delay circuit S

37、W TR On the base of this TR, power switch triggered /P_ON signal comes in. When this is L, and QP22 is turned ON, base current of QP20 is shut off. When QP20 is OFF, switching power supply is ON. QP15 Reduced voltage detection switching At the time of reduced +B1, base current is shut off and the ci

38、rcuit goes OFF. TR for resume operation QP20Power supply ON/OFF delay circuit SW TRWhen this TR is ON, switching power supply is OFF. QP21Power supply ON/OFF delay circuit SW TRWhen this TR is ON, switching power supply is OFF. QP22Power supply ON/OFF delay circuit SW TR When this TR is ON, base cur

39、rent at QP20 is shut off. This means QP20 is OFF and switching power supply is ON. QP30BU_VCC (+5V) regulator driving TR Receives batter power supply (+B1) by the collector and outputs regulation voltage 28V (+B1) from the emitter. QP4028V regulator drive TR Receives battery current (+B) with collec

40、tor and outputs regulated voltage 28V (+B1) from the emitter. This is used to counter the surge current, and it is normally about +B - +B1 = 1.4V. QP41TR for comprising Darlington connectionAlong with QP40, constitutes Darlington connection and works to enhance compound hfe. 6 KDV-S210P/S220P /S230P

41、/S240P MICROCOMPUTERS TERMINAL DESCRIPTION B/E Microcomputer : ES6008 (COMBO PCB : U1) Pin No.Pin NameI/OApplicationProcessing Operation Description 1VEE-I/O power supply (+3.3V) input 27LA4LA9OFlash ROM address bus 8VSS-Digital GND 9VCC-Core power supply (+2.5V) input 1016LA10LA16OFlash ROM address

42、 bus 17VSS-Digital GND 18VEE-I/O power supply (+3.3V) input 1921LA17LA19OFlash ROM address bus 22,23LA20,LA21OFlash ROM address busNC 24/RESETIChip reset input 25TDMDXONC 25RSELIROM selection terminalSelected by 8bit ROM 26VSS-Digital GND 27VEE-I/O power supply (+3.3V) input 28TDMDRINC 29TDMCLKINC 3

43、0TDMSFINC 31TDMTSC#ONC 32TWSOAudio frame synchronization output 32SEL_PLL2ISystem and DSCK output clock selection 2Selected by DCLK x 4 33TSD0OAudio serial data port 0 33SEL_PLL0ISystem and DSCK output clock selection 0Selected by DCLK x 4 34VSS-Digital GND 35VCC-Core power supply (+2.5V) input 36TS

44、D1OAudio serial data port 1NC 36SEL_PLL1ISystem and DSCK output clock selection 1Selected by DCLK x 4 37,38TSD2,TSD3OAudio serial data port 2,3NC 39MCLKOAudio master clock 40TBCKOAudio bit clock output 41SPDIFOSPDIF output 41SEL_PLL3IClock source selectionSelected by crystal oscillator 42NC-NC 43VSS

45、-Digital GND 44VCC-Core power supply (+2.5V) input 45RSDIAudio input serial dataNC 46RWSIAudio input frame synchNC 47RBCKIAudio input bit clockNC 48NC-NC 49XINICrystal input 7 KDV-S210P/S220P /S230P/S240P Pin No.Pin NameI/OApplicationProcessing Operation Description 50XOUTOCrystal output 51AVEE-PLL

46、analog power source (+3.3V) input 52VSS-Digital GND 5358DMA0DMA5ODRAM address bus 05 59VEE-I/O power supply (+3.3V) input 60VSS-Digital GND 6166DMA6DMA11ODRAM address bus 611 67VSS-Digital GND 68VEE-I/O power supply (+3.3V) input 69/DCASODRAM Column address strobe 70/DOEODRAM output enableNot used.

47、70DSCK_ENODRAM clock enable 71/DWEODRAM write enable 72/DRASODRAM low address strobe 73,74DMBS0,DMBS1OSDRAM bank select 0,1 75VEE-I/O power supply (+3.3V) input 76VSS-Digital GND 7782DB0DB5I/ODRAM data bus 05 83VCC-Core power supply (+2.5V) input 84VSS-Digital GND 8590DB6DB11I/ODRAM data bus 611 91V

48、SS-Digital GND 92VEE-I/O power supply (+3.3V) input 9396DB12DB15I/ODRAM data bus 1215 97/DCS1OSDRAM chip select 1NC 98VSS-Digital GND 99VEE-I/O power supply (+3.3V) input 100/DCS0OSDRAM chip select 0 101DQMODATA input/output mask 102DSCSOSDRAM clock output 103VSS-Digital GND 104VEE-I/O power supply

49、(+3.3V) input 105DCLKIPLL 27MHz clock inputNC 106YUV0OYUV0 pixel output dataNot used. 106CAMIN2ICamera input 2Not used. 106UDACOU video DAC outputOutput for composite video out 107YUV1OYUV1 pixel output dataNot used. 107VREFIVideo DAC reference voltage input 108YUV2OYUV2 pixel output dataNC 108CDACOVideo DAC outputNC MICROCOMPUTERS TERMINAL DESCRIPTION 8 KDV-S210P/S220P /S230P/S240P Pin No.Pin NameI/OApplicationProcessing Operation Description 109YUV3OYUV3 pixel output dataNot used. 109COMPICompensation input 110YUV4OYUV4 pixel output dataNot used. 110RSETIDAC current adjust input