Alpine-DVA-7996-R-Service-Manual 电路图 维修手册.pdf

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1、LPINE SERVICE MANUAL FM/MW/LW/RDS DVD Player DAB Mp 3 NX, DIGITALAUDID CO NT RO L I TEXT I .,._ mJrn 010Lev1 VOD,O,. IDIGITALVIDEO! D I G I TA L DIGITAL OUT -7SSSR The following cautions will prevent accidents in the workplace and will ensure safe products. GThe symbols indicate caution is needed to

2、 prevent injuries and damage to property. The symbols and their meanings follow. Lh Warning If you ignore this symbol and handle the product incorrectly or unsafely, serious injury or death may result. Lh Caution If you ignore this symbol and handle the product incorrectly or unsafely, injury or onl

3、y material damage may result. GThe following svmbols indicate two levels of cautions. Lh When you see this symbol, you have to be very careful. 0 When you see this symbol, you have to follow the instructions there. Warning Do not look squarely into the laser light coming from the pickup. You mav loo

4、se you sight. Caution Do not allow wiring to be caught in the screw/ chassis. If wiring is caught in the screw/chassis, it may cause a short circuit, resulting in a fire. High Temperature Caution Touching the heat sink may cause severe burns. Reverse Power Supply Connections or Misconnections Cautio

5、n Reverse power supply connections or misconnections mav cause ignition problems and smoke mav result. Soldering Caution Hot solder from solder splash may cause severe burns. 0 0 0 0 0 Fuse Caution Always use a designated fuse. Use of an incorrect fuse may result in a fire. Battery Caution Use the d

6、esignated battery. Confirm the correct polarity and seat of the battery. An incorrect battery or an improperly connected or seated battery mav result in a fire. Designated Parts Caution Look up the part list and ensure that only designated parts are used to prevent problems or accidents. Wiring Caut

7、ion Ensure that the wiring is correct when rewiring to prevent problems with ignition/breakdown. Wear Gloves Wear gloves to prevent electrical shocks or injury from the end face of the metal. For the FDA laser standard, the following CAUTION label is stuck on each product. Lh Please be careful for r

8、epair. CAUTION-Laser radiation when open, DO NOT ST ARE INTO BEAM 2 - DVA-7996R Contents Packing Assembly Parts List . . . . . . . . . . . . 4 Packing Method View . . . . . . . . . . . . 4 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

9、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7 Extension Cable . . . . . . . . . . . . . . . . . . 8 Adjustment Procedures . . . . . . . . . . . . . . . 9-11 Block Diagram . . . . . . . . . . . . . .

10、 . . . . . . 12 Parts Layout on P.W.Boards and Wiring Diagram . 13-24 Schematic Diagram . . . . . . . . . . . . . . . . 25-52 Terminal Voltage of IC/TR . 53-68 Description of IC Terminal . . . . . . . . . . . . . . . 69-7 4 Electrical Parts List . . . . . . . . . . . . . . . . . . . . . 75-96 Explod

11、ed View (Cabinet) . 97-100 Cabinet Assembly Parts List . . . . . 101 DVD Deck Mechanism Assembly Parts List . . . . . . . . . 102, 103 Exploded View (DVD Deck Mechanism) (DV36T02B) . . . . . 104, 105 NOTE : Due to continuing product improvement, specifications and designs are subject to change witho

12、ut notice. -3- DVA-7996R Paking Assembly Parts List Symbol Part No. Description Symbol Part No. Description No. No. 101-1 03S72235F13 SCR, MCH M5X8 FLAT 101-8 01T15394Y02 ANT, JASO-ISO 101-2 03S68555F26 SCR, WAVE Ml. 7X4 102 01T55446Y02 ASSY, REMOCON RUE4191 101-3 03S63857F75 SCR, TPG. M3X12 103 15D

13、50406W01 CASE, INNER 101-4 60T55630W01 BAT, MGN R03 (NB)UM-4 104 15D50063YOi CARRYING, CASE 101-5 75A60305Y01 CUSHION, REMOCON 105 om 5359Y13 ASSY, WIRE PWR 7899R 101-6 36A 11113W01 CAP, RUBBER (A) 106 01T25634Y01 ASSY, WIRE VIDEO 101-7 03A11112W01 BOLT, HEX. M5 (A) 107 68P50520Y48 0/M AOEU 0-1 8-2

14、8-3 X4 (r ef Xl X2 8-4 8-5 8-6 c=Jx1 Xl Xl 8-7 B-8 1 1 B 8 oc-oc -4- Specifications Intermediate Frequency DVA-7996R 10.70.1MHz Frequency Range . 87.5 108MHz Usable Sensitivity (Mono, 30dB S/N, at 98.1 MHz) . 20.2dBf -3dB Limiting Sensitivity (at 98.1 MHz) . . . 23.2dBf Residual Noise (Ref. 400Hz (N

15、ARROW), at 98.1 MHz) . 28 1 0dB S/N Ratio (at 98.1 MHz) Stereo : 55dB Mono: 58dB Image Rejection (at 106.1 MHz) . 40dB IF Rejection (at 90.1 MHz) . 60dB Distortion (Input 60dB, at 98.1 MHz) . 1 % Frequency Response (Ref. 400Hz, at 98.1 MHz) . 1 00Hz : 03dB 1 0kHz : -103dB Stereo Separation (1 kHz, a

16、t 98.1 MHz) . 20dB PS Sensitivity (at 98.1 MHz) . 36.2dBf Intermediate Frequency 1st.: 10.7MHz 2nd. :450kHz Frequency Range . 531 1,602kHz Usable Sensitivity (20dB S/N, at 999kHz) . 36dB S/N Ratio (at 999kHz) . 44dB Image Rejection (at 1.404kHz) IF Rejection (at 603kHz) Distortion (at 999kHz) 50dB 6

17、0dB 1.5% Frequency Response (Ref. 400Hz, at 999kHz) . 1 00Hz : -34dB Intermediate Frequency 2.5kHz : -3+4, -6dB 1st.: 10.7MHz 2nd. :450kHz Frequency Range . 153-281 kHz Usable Sensitivity (20dB S/N, at 216kHz) . 42dB S/N Ratio (at 216kHz) . 44dB Image Rejection (at 270kHz) . 50dB IF Rejection (at 16

18、2kHz) . 60dB Distortion (at 216kHz) 1.5% Frequency Response (Ref. 400Hz, at 216kHz) . . 1 00Hz: -34dB 2.5kHz : -3+4, -6dB -5 DVA-7996R System . Optical (Compact Disc System) Channel Balance (1 kHz) . TCD-782 : 03dB SCD-4419 (FOLDER4-128kbps): 03dB Distortion (1 kHz) . TCD-782 : 0.3% SCD-4419 (FOLDER

19、4-128kbps) : 0.3% Frequency Response (Ref. 1 kHz) . TCD-782 : 1 ?Hz : 03dB 127Hz : 02dB 10.007kHz : 02dB 19.997kHz : -24dB SCD-4419 (FOLDER4-128kbps) : 17Hz : 03dB 127Hz : 02dB 10.007kHz : 02dB 19.997kHz : -24dB S/N Ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

20、. . . . . . . . . . . . . TCD-782 : 80dB SCD-4419 (FOLDER4-128kbps): 80dB Separation . TCD-782: 65dB De-Emphasis (Ref. 1 kHz) SCD-4419 (FOLDER4-128kbps): 65dB TCD-782: 4kHz: -203dB 16kHz : -203dB Output Level (1 kHz) . DVD (TDV-540A) : 1.20.2mVrms Channel Balance (1 kHz) . VCD (HLV-402) : 03d8 DVD (

21、TDV-540A) : 03dB T.H.D. (1 kHz) . VCD (HLV-402): 0.3% DVD (TDV-540A) : 0.3% Frequency Response (1kHz) . VCD (HLV-402): 20Hz: 03d8 S/N Ratio (1 kHz) Separation (1 kHz) -6- 1 00Hz : 02dB 1 0kHz : 02dB 20kHz : -24d8 DVD (TDV-540A, 48kHz sample): 17Hz: 03dB 127Hz : 02dB 10.00?kHz : 02dB 19.997kHz: -24dB

22、 DVD (TDV-540A, 96kHz sample): 17Hz: -33d8 127Hz : 02dB 10.007kHz : 02dB 43.997kHz : -33d8 VCD (HL V-402) : 80d8 DVD (TDV-540A): 80dB VCD (HLV-402): 65d8 DVD (TDV-540): 65d8 DVA-7996R Signal system . PAL System Flash signal Output Voltage . VCD (HLV-402): 10.1V DVD (JVC V-509) : 1 0.1 V Flash signal

23、 Frequency Response . VCD (HLV-402) : 2MHz: -22dB DVD (JVC V-509) : 6MHz: -42dB Flash signal S/N Ratio . VCD (HLV-402): 45dB DVD (JVC V-509) : 55dB Wave Length . 655nm Laser Power CLASS 11 Power Supply . DC14.4V Pre Output (TCD-782 (0dB, 1 kHz), T.H.D. 1 %, ( FRONT.REAR.SUB-W +15STEP) /Impedance . 4

24、V2.5dBV/ch/10kohm Dimensions (WXHXD) . Nose: 188X58X25.8mm Chassis: 178X50X166.5mm Weight . 2kg NOTE : Due to Continuing product improvement, specifications and designs are subject to change without notice. -?- DVA-7996R Extension Cable 8Always connect the Extension Cable to the mecha when making ch

25、ecks of voltage. E.Cable FFC 45P 01E34124S01 BACK-END P.W.Board - I I I : : ; - I 1 I I I I I I I I I I I I J L- DV(l.5) FFCJIG-50P 01E30083S01 0 0 I I I I 1_ -_I 0 0 DV36T02BMech - 8 - I I I I I DSP P.W.Board -, ,-,-,-,-,- - - 1 I !._ _ : CH201 Main P.W.Board Extension Cable 01V33296S01 r-7 ,_ -1 7

26、899 E.Cable ASSY 15P 01E34670S01 Front P.W.Board DVA-7996R Adjustment Procedures 1. FM/AM SECTION (1) Dummy Antenna Circuit (2) Connections 0 0 FM Signal Generator 0 0 AM Signal Generator FM Stereo Modulator 1- 1 1 0ohm 45ohm I :output I _ J For 50 ohm FM Signal Generator Figure 1 1- 1 30ohm 15pF c;

27、:-Wrl I 1_ 6 Input 65 F I p 1OUtpUt 6 I I _ _._,o I - -J For 50 ohm AM Signal Generator Figure 2 Antenna Receptacle AC VTVM FM Dummy Antenna TP003 i- e TP007 0 GND Unit Under Test * GND short for 45 sec. Figure 3 Antenna Receptacle AC VTVM AM Dummy Antenna FM Signal Generator llqII TP003 i- e TP007

28、0 L=G=ND-i-+o Unit Under Test * GND short for 45 sec. Figure 4 + o-+- + + Antenna Receptacle FM Dummy Antenna + -g- Audio Output (RCA) GND Unit Under Test AC VTVM Figure 5 DVA-7996R (3) Control Settings Power Switch Fader Control Balance Control ON Center Position Center Position LPS . OFF (4) Adjus

29、tment Procedures Step Description Connection Signal Generator 87.7MHz, (1) 26dB (Mod. OFF) Signal Meter Auto 1 Figure 3 Adjustment (FM) 87.7MHz, (2) 2123dB (Mod. OFF) 87.7MHz, (3) 26dB (Mod. OFF) 1,000kHz, (1) 33dB (Mod. OFF) Signal Meter Auto 2 Figure 4 Adjustment (MW) 1,000kHz, (2) 2830dB (Mod. OFF) 1,000kHz, (3) 33dB (Mod. OFF) Band Switch FM/AM MX . Non Effect T-CORR Non Effect Others . OFF Test Point/ Dial Control PW.Board Adjustment Coordinates Auto Adjustment : After setting up of Sig