Kenwood-DVFR4050-cd-sm 电路图 维修手册.pdf

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1、DVD / CD PLAYER DV-505/DVF-R4050/-S SERVICE MANUAL 2001-10 PRINTED IN KOREA B51-5758-00 (K/K) 3445 Front panel * (A60-) Window * (B10-) AUDIO OUTPUT COMPONENT VIDEO OUTPUT VIDEO OUTPUT Cr Cb Y S-VIDEO OPTICALCOAXIAL L R DIN socket (E68-0018-08) Top cover * (A01-) * Refer to parts list on page 19 . I

2、n compliance with Federal Regulations, following are repro- duction of labels on, or inside the product relating to laser product safety. KENWOOD-Corp. certifies this equipment conforms to DHHS Regulations No.21 CFR 1040. 10, Chapter 1, subchapter J. DANGER : Laser radiation when open and interlock

3、defeated. AVOID DIRECT EXPOSURE TO BEAM. Caution : No connection of ground line if disassemble the unit. Please connect the ground line on rear panel, PCBs, Chassis and some others. Button * (K27-) Button * (K27-) Button * (K27-) Button(POWER) * (K27-) RCA jack (E63-1244-08) AC power cord bushing (J

4、42-0350-08) AC power cord * (E30-) RCA jack (E63-1227-08) RCA jack (E63-1192-08) 70% RadioFans.CN 收音机爱 好者资料库 DV-505/DVF-4050/-S 2 CONTENTS / ACCESSORIES / CAUTIONS CONTENTS / ACCESSORIES / CAUTIONS. 2 DISASSEMBLY FOR REPAIR.3 BLOCK DIAGRAM .4 WIRING DIAGRAM.5 PC BOARD.10 SCHEMATIC DIAGRAM.14 EXPLODE

5、D VIEW.21 PARTS LIST.23 SPECIFICATIONS.Back cover Contents Cord RCA 1p (E30-7235-08) Cord RCA 3p (E30-2990-08) Remote control unit (1) (A70-1570-08) Batteries (R03/AAA) (2) *AC plug adaptor (1) (E03-0115-05) * Use to adapt the plug on the power cord to the shape of the wall outlet. (Accessory only f

6、or regions where use is necessary.) Note related to transportation and movement Before transporting or moving this unit, carry out the follow- ing operations. 1. Set the POWER key to ON without loading a disc. 2. Wait a few seconds and verify that the display shown appears. 3. Set the POWER key to O

7、FF. Beware of condensation When the difference between the internal temperature of the unit and external atmosphere is large, dew (mist) may be produced on the internal parts of the unit. In such a case, turn the unit ON and leave it for a few hours until the condensation has dried up. Be especially

8、 careful in the following conditions: When the unit is brought into a place where there is a large differ- ence in temperature between the previous location, when the humidity of the listening room is high, etc. The marking is located on the rear panel and says that the component uses laser beams th

9、at have been clas- sified as Class 1. It means that the unit is utilizing laser beams that are of a weaker class. There is no danger of hazardous radiation outside the unit. CLASS 1 LASER PRODUCT The marking of products using lasers (Except for some areas) Operation to reset The microprocessor may f

10、all into malfunction (impossibility to oper- ate erroneous display, etc.) when the power cord is unplugged while power is ON or due to an external factor. In this case, execute the following procedure to reset the microprocessor and return it to normal condition. Please note that resetting the micro

11、processor clears the contents stored in, it returns the microprocessor to the condi- tion when it left the factory. 1In POWER ON condition, keep the DISC 3 key and the 44444 (Skip) key pressed at the same time. 2When both keys are pressed, the region code of the unit, the software version, etc. will

12、 be displayed on the display. (When nothing is done, the display of this information continues.) Example: 71 . 16 . 06:14 3Press the DISC 4 key and the 44444 key at the same time. BYE will be shown on the display. 4Press the ON/OFF key to go to Power OFF. 5When Power ON is performed with the ON/OFF

13、key, the settings become the default factory settings. Cautions Accessories Attention Please contact our KENWOOD Service Department in your side if you want the service information; Circuit Description. Full Described Parts list and so. Information is available to you by internet from us. RadioFans.

14、CN 收音机爱 好者资料库 DV-505/DVF-4050/-S 3 DISASSEMBLY FOR REPAIR 1. How to open the tray if it does not come out. (Fig. 1) 1. Turn the gear ccw in the direction of the arrow in the drawing through the hole on loading chassis bottom. 2. Pull out the tray frontward by hand when it comes just out. 2. How to R

15、emove the Tray (Fig. 2) 1. Remove the front panel, front chassis, power supply and the left mecha. frame. 2. Pull out the tray frontward (1) to match the dent of tray (2) to the protrusions of the mecha. base (3). 3. Remove the tray upward (4). 3. How to assemble the Tray (Fig. 3,4) 1. Adjust the po

16、sition of the plastic cam lifter (1) and main gear (2) in the drawing (1so that the traverse unit will reach the lowest position. 2. Attach the tray in the direction (3, 4) of the arrow in the drawing. 3. Push the tray backward. 1 3 2 4 3 4 1 2 Fig. 1 Fig. 3 Fig. 4 Fig. 2 RadioFans.CN 收音机爱 好者资料库 ADD

17、R F-WE F-RESET F-DE D-RAS0- ADDR RDNOTWR DATA D-CAS0- D-CAS1- +3.3V DIGITAL VCC F/E SDATA EXIT-DATA +3.3V-RESET F/E SCL EXIT-BCLK EXIT-DATAVALID EXT-PSTART/ERROR +12V MOTOR VCC +8V MOTOR VCC +5V DIGITAL VCC SLIDER-IN(DRAWER-CCW-CTRL) SLIDER-OUT(DRAWER-CW-CTRL) SLIDER-OPEN/CLOSE(POWER-POSITION-P1) +1

18、2V ANALOG VCC +8V ANALOG VCC +5V DIGITAL VCC -8V ANALOG VCC +12V MOTOR VCC 5V FRONT +8V MOTOR VCC +3.3V DIGITAL VCC : AC240V 50Hz : AC230V 50Hz (X) (T,E) : AC110-120V/220-240V : AC120V 60Hz 50/60Hz (K,P) (Y,M) F-CE F-OE(DRAM OE) -27V FL AC FL AC +5VS STBY ON/OFF CNTL IR REMOCON +5.6VS VFD DATA OUT V

19、FD STB VFD DATA IN PCM1748E-DATA LRCLK BCK PCMCLK PCM1748E-CS PCM1748E-CLK AUDIO-MUTE CVBS-OUT Y-OUT R(Cr)-OUT C-OUT B(Cb)-OUT G(Y)-OUT 9 10 8 6 7 SPDIF PIXCLK-27MHz SCL SDA VIDEO-MUTE VFD CLK DATA IRQ2 POWER CTL L AUDIO R AUDIO GND BLUE-OUT GREEN-OUT RED-OUT CVBS-OUT L-CH OUT R-CH OUT IC201 STI5519

20、 FLASH MEMORY IC401 8MBIT SST39VF800505 HY57V651620 SDRAM-64MBIT IC301 F/E 44.1, 48 kHz) 4 fs (Sampling frequency; 96 kHz) Audio section Frequency response Sampling frequency ; 44.1 kHz . 4 Hz 20 kHz Sampling frequency ; 48 kHz . 4 Hz 22 kHz Sampling frequency ; 96 kHz . 4 Hz 42 kHz Signal to noise

21、ratio .More than 98 dB Dynamic range .More than 95 dB Total harmonic distortion .Less than 0.005 % (1 kHz) Channel separation .More than 95 dB (1 kHz,) Wow and flutter . Below measurable limit Analog output level/impedance .2 V / 1 k Digital output level/impedance COAXIAL . 0.5 Vp-p / 75 OPTICAL. -2

22、1 dBm -15 dBm (Wave length 660 nm) Video Section Video output format. NTSC/PAL Video compression DVD. MPEG-2 Composite video output level . 1 Vp-p (75 load, sync. negative) S-video output level (Y-signal) . 1 Vp-p (75 load, sync. negative) (C-signal) NTSC . 0.286 Vp-p (75 ) PAL . 0.300 Vp-p (75 ) Ho

23、rizontal resolution .More than 480 lines Video signal to noise ratio.More than 60 dB General Power consumption . 20 W Dimensions. W:440 mm(17-5/16) H: 127 mm(5) D: 440 mm (17-5/16) Weight (net). 6.8 kg (15.0 lb) KENWOOD follows a policy of continuous advancements in development. For this reason specifications may be changed without notice. Sufficient performance may not be exhibited at extremely cold locations (Where water freezes).