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1、n AMPLIFIER SECTION RMS Output Power Stereo Mode both channels driven: 10 % Total Harmonic Distortion 1 kHz Front CH95 W per channel (4 ) Total RMS Stereo mode power190 W n FM/AM TUNER, TERMINALS SECTION Preset stationFM 15 stations AM 15 stations Frequency Modulation (FM) Frequency range87.50 - 108
2、.00 MHz (50 kHz step) Sensitivity4.0 V (IHF) S/N 26dB2.2 V Antenna terminals75 (unbalanced) Amplitude Modulation (AM) Frequency range522 - 1629 kHz (9 kHz step) AM Sensitivity S/N 20dB at 999 kHz 560 V/m Music Port Input Jack Sensitivity100 mV, 4.7 k TerminalStereo, 3.5 mm jack Phone jack TerminalSt
3、ereo, 3.5 mm jack Mic jack 2006 Matsushita Electric Industrial Co. Ltd. All rightsreserved.Unauthorizedcopyingand distribution is a violation of law. SA-VK450EE Colour (S). Silver Type Sensitivity0.7 mV, 600 TerminalMono, 6.3 mm jack (2 system) n CASSETTE DECK SECTION Track system4-Track, 2 Channel
4、Heads Record/playbackSolid permalloy head ErasureDouble gap ferrite head MotorDC servo motor Recording systemAC bias 100 kHz Erasing systemAC erase 100 kHz Tape speed4.8 cm/s Overall frequency response (+3, -6 dB) at DECK OUT Normal35 Hz - 14 kHz S/N ratio50 dB (A weighted) Wow and flutter0.18 % (WR
5、MS) Fast forward and rewind timeApprox. 120 seconds with C-60 cassette tape n DISC SECTION Disc played 8 cm or 12 cm (1) DVD (DVD-Video, DivX , ) (2) DVD-RAM (DVD-VR, JPEG , , MP3 , , MPEG4 , , DivX , ) (3) DVD-R (DVD-Video, DVD-VR, JPEG , , MP3 , , MPEG4 , , DivX* 6,*7) DVD Stereo System Notes: Thi
6、s models DVD mechanism changer unit is CRS1D. Please refer to the original Service Manual (Order No. MD0603065A3) for this mechanism. Specifications ORDER NO. MD0603053C3 * 6 * 6* 4 * 4* 2 * 2* 5 * 5 *7 *7 *7*7*7 *7*7*7 RadioFans.CN 收音机爱 好者资料库 (4) DVD-R DL(DVD-Video, DVD-VR) (5) DVD-RW (DVD-Video, D
7、VD-VR, JPEG , , MP3 , , MPEG4 , , DivX* 6,*7) (6) DVD+R/RW (Video) (7) DVD+R DL (Video) (8) CD,CD-R/RW CD-DA, Video CD, SVCD, MP3 , , WMA , , JPEG* 4,*7, MPEG4* 5,*7, DivX* 6,*7, HighMAT Level 2 (Audio and Image) Conforming to IEC62107 MPEG-1 Layer 3, MPEG-2 Layer 3 Windows Media Audio Ver 9.0 L3 No
8、t compatible with Multiple Bit Rate (MBR) Exif Ver 2.1 JPEG Baseline files Picture resolution: between 160 x 120 and 6144 x 4096 pixels (Sub sampling is 4:0:0, 4:2:0, 4:2:2 or 4:4:4). Extremely long and slender pictures may not be displayed. MPEG4 data recorded with the Panasonic SD multi cameras or
9、 DVD video recorders. Conforming to SD VIDEO specifications (ASF standard)/ MPEG4 (Simple Profile) video system/ G.726 audio system. Plays all version of DivXvideo (including DivX6) with standard playback of DivXmedia files. Cerfified to the DivXHome Theater Profile. GMC (Global Motion Compensation)
10、 is not supported. The total combined maximum number of recognizable audio, picture and video contents and groups: 4000 audio, picture and video contents and 400 groups. Pick up Wavelength CD785 nm DVD662 nm Laser Power CDCLASS 1M DVDCLASS 1 Audio output (Disc) Number of channels(FL, FR) 2 ch (stere
11、o) n VIDEO SECTION Video systemPAL625/50, PAL525/60, NTSC Composite video output Output level1 Vp-p (75 ) TerminalPin jack (1 system) S-video output Y output level1 Vp-p (75 ) C output level0.3 Vp-p (75 ) (PAL) 0.286 Vp-p (75 ) (NTSC) TerminalS terminal (1 system) Component video output NTSC : 525 (
12、480)p/525 (480)i, PAL : 625 (576)p/625 (576)i Y output level1 Vp-p (75 ) PBoutput level0.7 Vp-p (75 ) PRoutput level0.7 Vp-p (75 ) Terminal Pin jack (Y: green, PB: blue, PR: red) (1 system) n GENERAL Power supplyAC 230 V, 50Hz Power consumption105 W Power consumption in standby mode: 0.9 W (approxim
13、ate) Dimensions (W x H x D)250 x 330 x 341.8 mm Mass6.7 kg Operating temperature range+5 to +35C Operating humidity range5 to 90% RH (no condensation) n SYSTEM SC-VK450(EE)Music Center: SA-VK450 (EE) Speaker: SB-VK450 (GC) For information on speaker system, please refer to the original Service Manua
14、l (Order No. MD0601005C3) for SB-VK450GC-S. 2 SA-VK450EE * 4* 2 * 2 * 5 * 3* 1 *7*7*7 *7*7 * 1 * 2 * 3 * 4 * 5 * 6 * 7 RadioFans.CN 收音机爱 好者资料库 Notes: 1. Specifications are subject to change without notice. Mass and dimensions are approximate. 2. Total harmonic distortion is measured by the digital s
15、pectrum analyzer. 3 SA-VK450EE RadioFans.CN 收音机爱 好者资料库 1 Safety Precautions 6 1.1. General Guidelines 6 1.2. Before Repair and Adjustment 6 1.3. Protection Circuitry 6 2 Prevention of Electro Static Discharge (ESD) to Electrostatically Sensitive (ES) Devices 8 3 Handling Precautions for Traverse Uni
16、t 9 3.1. Handling Optical Pickup 9 3.2. Replacing Precautions for Optical Pickup Unit 9 3.3. Grounding for Preventing Electrostatic Destruction 9 4 Precaution of Laser Diode 10 5 Handling the Lead-free Solder 11 5.1. About lead free solder (PbF) 11 6 Accessories 12 7 Operation Procedures 13 7.1. Mai
17、n Unit Operation Control 13 7.2. Remote Control Operation Control 14 7.3. Disc Information 15 7.4. DivX VOD Content 17 8 New Features 18 8.1. CRS1D Mechanism Overview 18 8.2. Music Port 20 9 About HighMAT 21 9.1. Whats HighMAT? 21 9.2. Why take advantage of HighMAT? 21 9.3. Benefits of HighMAT? 22 1
18、0 Self diagnosis and special mode setting 25 10.1. Service Mode Summary Table 25 10.2. Service Mode Table 1 25 10.3. Special Mode Table 2 32 11 Assembling and Disassembling 40 11.1. Caution 40 11.2. Disassembly flow chart 41 11.3. Main Parts Location 42 11.4. Disassembly of Top Cabinet 43 11.5. Disa
19、ssembly of Rear Panel 43 11.6. Disassembly of CD/DVD Changer Unit (CRS1D) 43 11.7. Disassembly of Main P.C.B. 45 11.8. Disassembly of Transformer P.C.B. 45 11.9. Disassembly of Power P.C.B. 46 11.10. Disassembly of Front Panel Unit 47 11.11. Disassembly for Panel P.C.B. Typically the melting point i
20、s 50 - 70F (30 - 40C) higher. Please use a high temperature soldering iron. In case of soldering iron with temperature control, please set it to 700 20F (370 10C). When soldering or unsoldering, please completely remove all of the solder on the pins or solder area, and be sure to heat the soldering
21、points with the Pb free solder until it melts enough. Pb free solder will tend to splash when heated too high (about 1100F/600C). 11 SA-VK450EE 6 Accessories Remote control AC power supply cord FM indoor antenna AM loop antenna Video cable MIC 12 SA-VK450EE 7 Operation Procedures 7.1. Main Unit Oper
22、ation Control 13 SA-VK450EE 7.2. Remote Control Operation Control 14 SA-VK450EE 7.3. Disc Information 15 SA-VK450EE 16 SA-VK450EE 7.4. DivX VOD Content 17 SA-VK450EE 8 New Features 8.1. CRS1D Mechanism Overview 18 SA-VK450EE 8.1.1. General Feature This is a five disc changer mechanism for CD/DVD. Th
23、e outline figure is shown below. The mechanism has CHANGE WHILE PLAY function. It open other trays for disc exchanging while one tray is at PLAY position performing recording or reproducing. The mechanism can quickly change all trays with CHANGE ALL function. All trays can be move to OPEN position w
24、ith one operation. There is no sensor to indicate presence of disc on any tray. 8.1.2. Hardware composition Below is the hardware components of the mechanism NameFunction Open Switch (OPEN-SW)The switch is used to detect normal tray opening The switch is used for detect tray being manually push/trig
25、ger when full open Home Switch (HOME-SW)Is used to detect cam gear home position Close Sensor (CLOSE-SENSOR)Used for normal single tray closing Used to detect cam gear rotate to Play Driving position Play Switch (PLAY-SW)Detect TRV clamping complete position Stocking Switch (STOCK-SW)Detect tray com
26、pletely transfer for play position to stocking position UD Sensor (UD-SENSOR)Detect TRV vertical movement position Top Switch (TOP-SW)Detect a default position of TRV vertical movement position Driver ICTo drive Motor MotorMain driving source for changer PlungerSwitching the driving source from moto
27、r to: 1. Tray open/close 2. Drive tray to play/stock position and TRV vertical movement 8.1.3. Mechanism Operation This mechanism has the following state: 1. Driving of a tray to open/close 2. Up/down operation of a traverse performs a state changes of tray. By using the plunger to lift/release of a
28、 switching gear, and the cam gear to lift/release the function gear the motor can be link to several gear trains to perform various operations. The functions that can be perform in this mechanism are described as below: ConditionExplanation Open current playing trayThe state to change current playin
29、g disc. All tray will be open at once and current tray at PLAY position will be expose. Open AllThe state where all trays being driven to OPEN position. The disc can be taken in or out from tray to tray by close tray one by one from top to bottom. StockThe state where the trays are stored in STOCK p
30、osition PlayThe state where one of the tray 5 trays is being driven to PLAY position and clamped by traverse unit Play QZZCWAT 14.1.1. Head Azimuth Adjustment (Deck 1/2) Caution: Please replace both azimuth adjustment screw and springs simultaneously when readjusting the head azimuth. (shown in Fig.
31、 2) Even if you wish to readjust the head azimuth without replacing the acrews and springs, a fine adjustment to the azimuth screw and spring. Please remove the screw-locking bond left on the head base when replacing the azimuth screw. If you wish to readjust the head azimuth, be sure to adjust with
32、 adhering the cassette tape closely to the mechanism by pushing the center of cassette tape with your finger. (shown in Fig. 3) 1. Playback the azimuth adjustment portion (8 kHz, -20dB) of the test tape (QZZCFM) in the forward play mode. Vary the azimuth adjustment screw until the output of the R-CH
33、 (PB OUT-R) are maximized. 2. Perform the same adjustment in the reverse play mode. 3. After the adjustment, applyscrewlock to the azimuth adjusting screw. 14.1.2. Tape Speed Adjustment (Deck 1/2) 1. Set the tape edit button to “NORMAL” position. 2. Insert the test tape (QZZCWAT) to DECK 2 and playb
34、ack (FWD side) the middle portion of it. 3. Adjust Motor VR (DECK 2) for the output value shown below. Adjustment target: 2940 3060 Hz (NORMAL speed) 4. After alignment, assure that the output frequency of the DECK 1 FWD are within 60 Hz of the value of the output frequency of DECK 2 FWD. Fig. 1 14.
35、1.3. Bias Voltage Check 1. Set the unit “AUX” position. 2. Insert the Normal blank tape (QZZCRA) into DECK 2 and the unit to “REC” mode (usekey). 3. Measure and make sure that the output is within the standard value. Bias voltage for Deck 2144mV (Normal) Fig. 2 Fig. 3 14 Adjustment Procedures 63 SA-
36、VK450EE 14.1.4. Bias Frequency Adjustment (Deck 1/2) 1. Set the unit to “AUX” position. 2. Insert the Normal blank tape (QZZCRA) into DECK 2 and set the unit to “REC” mode (usekey). 3. Adjust L1002 so that the output frequency is within the standard value. Standard Value: 89 110 kHz 1. Connect the i
37、nstrument as shown in Fig. 5. 2. Set the unit to AM mode. 3. Apply signal as shown in Fig. 5 from AM-SG. 4. Adjust Z2602 so that the output frequency is maximized in Fig. 6. Fig. 5 Fig. 6 14.2.2. AM RF Adjustment 1. Connect the instrument as shown in Fig. 7. 2. Set the unit to AM mode. 3. Set AM-SG
38、to 520kHz. 4. Receive 520kHz in the unit. 5. Adjust L2601 (OSC) so that the EVM-AC is maximized. 6. Set AM-SG to 600Hz. 7. Receive 600Hz in the unit. 8. Adjust L2601 (ANT) so that the EVM-SG is maximized. 9. Set AM-SG to 520kHz. 10. Receive 520kHz in the unit. 11. Adjust L2602 (OSC) so that the EVM-
39、DC value is with 1.10.5V. Fig. 4 Fig. 7 14.2. Tuner Section 14.2.1. AM-IF Alignment 64 SA-VK450EE 14.3.1. Cassette Deck Section 14.3.2. Adjustment Point 14.3. Alignment Points 65 SA-VK450EE 15 Voltage and Waveform Chart Note: Circuit voltage and waveform described herein shall be regarded as referen
40、ce information when probing defect point, because it may differ from an actual measuring value due to difference of Measuring instrument and its measuring condition and product itself. 15.1. DVD Module P.C.B. 66 SA-VK450EE 67 SA-VK450EE 15.2. Main P.C.B. 68 SA-VK450EE 69 SA-VK450EE 15.3. Panel P.C.B
41、. & Power P.C.B. & Transformer P.C.B. 70 SA-VK450EE 15.4. Deck P.C.B. & Deck Mechanism P.C.B. & Mic P.C.B. & Tuner P.C.B. 71 SA-VK450EE 15.5. Waveform Chart 72 SA-VK450EE 73 SA-VK450EE 74 SA-VK450EE 16 Wiring Connection Diagram 29 . . . . . . . . . . 1 30 . . . . . . . . . . 2 CN6807 C PANEL P.C.B.
42、SOLDER SIDE F DECK P.C.B. SOLDER SIDE DECK MECHANISM P.C.B. SOLDER SIDE G M1 1 2 MOTOR - + CS1001 (DECK 1) PLAYBACK HEAD TO CRS1D (CN1) SOLENOIDSOLENOID CN971 PbF PbF A DVD MODULE P.C.B. (SIDE B) TO OPTICAL PICKUP UNIT FP8531 1 . . . . . . . . . . . 26 SOLDER SIDE PbF PbF B MAIN P.C.B. SOLDER SIDE I
43、 TUNER P.C.B. CN2806 CN2803 Z2602 L2602 L2601 CN2809 1. . . . . . . . . . . . 12 CN2808 1. . . . . . . . . . . . 12 1 11 . . . . . 2 10 . . . 1 11 . . . . 2 12 . . . . 1 CN2807 29 2 30 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . M2 2 1 CN2805 14 . . . . . 2 13 . . . . . 1
44、 CN2801 1 49 . . . . . . . . . . . . . . . 3 47 . . . . . . . . . . . . . 2 50 . . . . . . . . . . . . . . . 4 48 . . . . . . . . . . . . . FM LOOP ANTENNA AM LOOP ANTENNA COMPONENT VIDEO OUT VIDEO OUT S-VIDEO OUT JK2601 JK2800 JK2803 PbF CN5950 9 . . . . . . . 1 10 . . . 2 9 . . . 1 AC IN 230V 50HZ
45、 CAUTION RISK OF ELECTRIC SHOCK AC VOLTAGE LINE. PLEASE DO NOT TOUCH THIS P.C.B JK5950 TRANSFORMER P.C.B. SOLDER SIDE E T5950 (TRANSFORMER) T5951 (SUB-TRANSFORMER) PbF 3 CN5955 1 . 9 CN5951 1 . . . . . SOLDER SIDE D POWER P.C.B. PbF H5104 91. . . . . . CN5102 1 . . . . . . . 12 CN5103 1 . . . . . .
46、. 12 JK5102 SPEAKER VR6491 VR6501 JK6551 CP6401 Z6400 JK6552 PHONESSENSOR H6555 9 1 . . . . . . . VOLUME MIC VOLUME MUSIC PORT 10 . . . . 2 9 . . . . 1 1. . . . . 7 H6556 CN6806 1 . . . . 11 2 . . . . 12 MIC P.C.B. SOLDER SIDE H MIC PbF CN2701 JK2701 1 7 . . . . . TO SPINDLE MOTOR A DVD MODULE P.C.B
47、. (SIDE A) PbF FP8101 50 1 . . . . . . . . . . . . . . . . . . . FP8251 6 . . . .1 FP8041 FOR DEBUG FP8031 FOR FLASH ROM WRITING CS1002(DECK 2) R/P HEAD, ERASE HEAD 1 2. 5 4 1 2. 5 4 CN1001 10 . . . . 2 11 . . . . . . 1 SA-VK450EE 75 SA-VK450EE 76 17 Block Diagram ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?
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