Yamaha-DSPE-800-Service-Manual电路原理图.pdf

《Yamaha-DSPE-800-Service-Manual电路原理图.pdf》由会员分享，可在线阅读，更多相关《Yamaha-DSPE-800-Service-Manual电路原理图.pdf（58页珍藏版）》请在收音机爱好者资料库上搜索。

1、DSP-E800 DSP-E800 DSP-E800 100719 AV PROCESSOR/AMPLIFIER SERVICE MANUAL I CONTENTS TO SERVICE PERSONNEL . 1 REAR PANELS . 1 SPECIFICATIONS . 2 INTERNAL VIEW . 3 DISASSEMBLY PROCEDURES . 34 ADJUSTMENTS . 5 SELF DIAGNOSIS FUNCTION. 617 FACTORY PRESET . 18 IC DATA . 1927 DISPLAY DATA . 28 PIN CONNECTIO

2、N DIAGRAM . 29 BLOCK DIAGRAM . 3031 PRINTED CIRCUIT BOARD . 3241 SCHEMATIC DIAGRAM . 4247 PARTS LIST . 4859 REMOTE CONTROL TRANSMITTER. 60 This manual has been provided for the use of authorized YAMAHA Retailers and their service personnel. It has been assumed that basic service procedures inherant

3、to the industry, and more specifically YAMAHA Products, are already known and understood by the users, and have therefore not been restated. WARNING:Failure to follow appropriate service and safety procedures when servicing this product may result in personal injury, destruction of expensive compone

4、nts and failure of the product to perform as specified. For these reasons, we advise all YAMAHA product owners that all service required should be performed by an authorized YAMAHA Retailer or the appointed service representative. IMPORTANT:The presentation or sale of this manual to any individual o

5、r firm does not constitute authorization, certification or recognition of any applicable technical capabilities, or establish a principle-agent relationship of any form. The data provided is believed to be accurate and applicable to the unit(s) indicated on the cover. The research, engineering, and

6、service departments of YAMAHA are continually striving to improve YAMAHA products. Modifications are, therefore, inevitable and specifications are subject to change without notice or obligation to retrofit. Should any discrepancy appear to exist, please contact the distributors Service Division. WAR

7、NING:Static discharges can destroy expensive components. Discharge any static electricity your body may have accumulated by grounding yourself to the ground buss in the unit (heavy gauge black wires connect to this buss). IMPORTANT:Turn the unit OFF during disassembly and parts replacement. Recheck

8、all work before you apply power to the unit. IMPORTANT NOTICE RadioFans.CN 收音机爱 好者资料库 DSP-E800 DSP-E800 M G model I REAR PANELS M B model 1 I TO SERVICE PERSONNEL Critical Components Information Components having special characteristics are marked Z and must be replaced with parts having specificati

9、ons equal to those originally installed. AC LEAKAGE TESTER OR EQUIVALENT EQUIPMENT UNDER TEST INSULATING TABLE WALL OUTLET IMPEDANCE SELECTOR WARNING Do not change the IMPEDANCE SELECTOR switch setting while the power to this unit is on, otherwise this unit may be damaged. RadioFans.CN 收音机爱 好者资料库 DS

10、P-E800 DSP-E800 2 I AUDIO SECTION Minimum RMS Output Power per Channel CENTER 20Hz to 20kHz, 0.06% THD, 870W 1kHz, 0.09% THD, 880W REAR 20Hz to 20kHz, 0.06% THD, 870W+70W 1kHz, 0.09% THD, 880W+80W Dynamic Power per Channel (IHF) REAR, 890W+90W REAR, 6110W+110W REAR, 4135W+135W REAR, 2160W+160W DIN S

11、tandard Output Power per Channel (G model only) CENTER, 1kHz, 0.7% THD, 4110W REAR, 1kHz, 0.7% THD, 4110W+110W IEC Power (G model only) CENTER, 1kHz, 0.04% THD, 875W REAR, 1kHz, 0.04% THD, 875W+75W Damping Factor CENTER, REAR, 20Hz to 20kHz, 8100 or more Input Sensitivity/Impedance CD, etc.150mV/47k

12、 6 CH INPUT (Ext. D.) MAIN150mV/47k CENTER, REAR, SUBWOOFER150mV/40k Maximum Input Signal 1kHz, 0.5% THD, CD, etc. (EFFECT ON)2.2V Output Level/Impedance REC OUT150mV/1.2k PRE OUT MAIN, CENTER, REAR1V/1.2k PRE OUT SUBWOOFER (MAIN SP: SMALL)4V/1.2k Frequency Response 10Hz to 100kHz, CD, etc. MAIN0/ -

13、 3dB Total Harmonic Distortion DISCRETE inputs to REAR SP OUT (20Hz to 20kHz, 35W/8)0.06% Signal to Noise Ratio (IHF-A-Network) CD, etc. (EFFECT OFF) (S: 150mV) MAIN PRE OUT99dB Residual Noise (IHF-A-Network) CENTER, REAR, SP OUT150V Channel Separation (Vol. 30dB) CD, etc. (EFFECT OFF) (Input 5.1k S

14、horted) 1kHz/10kHz60dB/45dB Filter Characteristics MAIN, REAR SP SMALL : H.P.F.fc = 90Hz, 12dB/oct. SUBWOOFER : L.P.F.fc = 90Hz, 18dB/oct. I SPECIFICATIONS I GENERAL Power Supply B, G modelsAC 230V, 50Hz Power Consumption B, G models180W Standby Power Consumption (reference data) B, G models0.85W AC

15、 Outlets Switched x 1100W max. Dimensions (W x H x D)435 x 126 x 391mm (17-1/8” x 4-15/16” x 15-3/8”) Weight10.0 kg (22 lbs. 1 oz) Finish G modelGold color/Titanium color/Black color B modelBlack color AccessoriesRemote Control Transmitter x 1 Battery (size AA, R06) x 2 G DIMENSIONS * Specifications

16、 subject to change without notice. B . British model G . European model I VIDEO SECTION Video Signal Type B, G modelsPAL Composite Video Signal Level1Vp-p/75 S-Video Signal Level Y1Vp-p/75 C0.286Vp-p/75 Video Maximum Input Level1.5Vp-p Video Signal to Noise Ratio50dB Monitor Output Frequency Respons

17、e Composite Video Signal5Hz10MHz, 3dB S-Video Signal5Hz10MHz, 3dB Units : mm (inch) Manufactured under license from Dolby Laboratories. Dolby, AC-3, Pro Logic, and the double-D symbol V are trademarks of Dolby Laboratories. 1992-1997 Dolby Laboratories. All rights reserved. Manufactured under licens

18、e from Digital Theater Systems, Inc. US Pat. No. 5,451,942 and other world-wide patents issued and pending. DTS, DTS Digital Surround, are trademarks of Digital Theater Systems, Inc. copyright 1996 Digital Theater Systems, inc. All rights reserved. 349.5 (133/4) 391 (153/8) 20 (13/16) 21.5 (7/8) 435

19、 (171/8) 16 (5/8) 110 (45/16) 126 (415/16) DSP-E800 DSP-E800 3 I INTERNAL VIEW qMAIN (2) P.C.B. wMAIN (1) P.C.B. eINPUT (1) P.C.B. rINPUT (3) P.C.B. tMAIN (5) P.C.B. yMAIN (4) P.C.B. uDSP P.C.B. iOPERATION (2) P.C.B. I DISASSEMBLY PROCEDURES (Remove parts in disassembly order as numbered.) 1. Remova

20、l of Top Cover a. Remove 4 screws (q) and 4 screws (w) in Fig. 1. 2. Removal of Front Panel a. Remove 6 screws (e) in Fig. 1. 3. Removal of Operation (2) P.C.B. a. Remove the Volume knob. b. Disconnect a flat connecting cable (CB801) in Fig. 1. c. Remove a nut (r) and then remove the Operation (2) P

21、.C.B. in Fig. 1. Fig. 1 qerw tyui Top Cover w w q e Front panel q e r Operation (2) P.C.B. CB801 DSP-E800 DSP-E800 4 4. Removal of Input (3) P.C.B. a. Remove 6 screws (t) and then remove the Input (3) P.C.B. in Fig. 2. 5. Removal of Input (1) P.C.B. a. Remove 6 screws (y) in Fig. 2. b. Disconnect 2

22、flat connecting cables (CB402, CB406) and a connector (CB410) in Fig. 3. c. Remove 3 screws (u) and then remove the Input (1) P.C.B. in Fig. 3. Fig. 3 Fig. 2 Fig. 4 t y t u i Shield Case/Top DSP P.C.B. Input (1) P.C.B. CB402 CB406 Input (3) P.C.B. 6. Removal of DSP P.C.B. a. Remove 2 screws (i) and

23、then remove the Shield Case/Top with the DSP P.C.B. in Fig. 4. Note : 1.When the rear panel has been removed, the ground connection at the input/output pin jack becomes open. Connect it to the chassis by using a lead wire. Input (3) P.C.B. CB410 DSP-E800 DSP-E800 Fig. 5 Fig. 6 !1 o !0 o !2 !2 !3 Fig

24、. 7 4-1 7. Checking the Amplifier Unit and Replacing Components a. Turn off the power switch and unplug the power plug from the AC outlet. b. Remove 9 screws ( o, !0, !1 ) indicated in Fig. 5. c. Remove 5 screws ( !2, !3 ) indicated in Fig. 6. d. Loosen the wire ring, which fixes the wire harness. e

25、. After removing the Amplifier Unit / Main (2) P.C.B, lift up the rear of the Amplifier Unit with a wire and set it as shown in Fig. 7. f. Use an insulating material (a rather thick cloth) so as to prevent the Amplifier Unit / Main (2) P.C.B. from contacting other P.C.Bs, chassis and power transform

26、er. g. Using a lead wire, connect the grounding of the pin jack to the chassis. (If it is left unconnected, the grounding floats and the unit may fail to function properly.) h. Connect the power plug and turn on the power switch. Amplifier Unit Main (2) P.C.B. Cloth Wire DSP-E800 DSP-E800 4-2 MEMO D

27、SP-E800 DSP-E800 5 I ADJUSTMENTS GConfirmation of Idling Current 1) No signal applied. 2) Non-loaded condition. 3) Aging is not neccessary. Test Point CB103 R161 or R163 R167 or R169 Rating (DC) 0.1mV5mV NoteItem REAR L REAR R CENTER If the measured voltage exceeds 5.1mV, cut the lead wire of R133(R

28、L ch), R142(RR ch) or R150(C ch) and then check again if each measured value satisfies the rating. Cut R133 (RL ch) R142 (RR ch) R150 (C ch)Note) If R133 (RL ch), R142 (RR ch) or R150 (C ch) have already been cut off and idling current does not flow, reconnect R133 (470), R142 (470) or R150 (470). Q

29、107, Q109 and Q111 are transistors for temperature compensation. Apply silicone grease to the contact surface with the heat sink. 0.1mV 5mV (DC) CB103 (RL ch) 0.1mV 5mV (DC) R161 or R163 (RR ch) R167 or R169 (C ch) * Confirm that the voltage is 0.127.5mV after 60 minutes. R161 R163 R167 R169 R150 R1

30、42 R133 CB103 Q107 Q111 Q109 DSP-E800 DSP-E800 6 I SELF DIAGNOSIS FUNCTION 1. PURPOSE AND OPERATION The DSP-E800 has a Self Diagnosis Function to locate a faulty part, if any, by inspecting and taking measurements. There are 12 main items in the diagnostic with sub-menu items as listed below. No. 1

31、2 3 4 5 6 7 8 9 10 12 SUB-MENU 1. MAIN BYPASS 2. DSP 0dB 1. YSS+SRAM M 2. YSS M 3. DSP FULL BIT 1. STATUS (BINARY FORM) 1. CENTER LARGE 2. EFFECT OFF 1. MAIN : SMALL 0dB 2. MAIN : LARGE 0dB 3. MAIN : LARGE 10dB 4. LFE/BASS : MAIN CENTER : NONE 5. LFE/BASS : MAIN 6. LFE/BASS : SUBWOOFER 7. CENTER : N

32、ONE 8. CENTER : SMALL REAR : SMALL 9. FRONT MIX 1. (EFFECT OFF) 2. ALL SEGMENTS TURN OFF 3. ALL SEGMENTS TURN ON 4. ALTERNATE SEGMENTS TURN ON 5. SOFTWARE RELEASE DATE 1. ALL 2. MAIN L 3. CENTER 4. MAIN R 5. REAR R 6. REAR L 7. LFE 1. INHIBIT (Inhibit Memory Initialize) 2. RESERVED (Reserve Memory I

33、nitialize) 1. 2. KEY1, KEY2 3. TUNER SIGNAL LEVEL 5. PS PROTECTION 1./2. DSP STATUS (1)/(2) 3./4. CHANNEL STATUS (1)/(2) 5./6. BSI0 (1)/(2) 7./8. BSI1 (1)/(2) 9./10. BSI2 (1)/(2) 11./12. BSI3 (1)/(2) 13./14. BSI4 (1)/(2) 15./16. BSI5 (1)/(2) 1. VERSION and CHECK SUM 2. MODEL TYPE and DESTINATION 3.

34、EXIT MAIN MENU ANALOG THROUGH DSP THROUGH AC3/DTS THROUGH PRO LOGIC SPEAKERS SET DISPLAY CHECK (EFFECT OFF) MANUAL TEST FACTORY PRESET AD DATA CHECK STATUS INFORMATION FROM DSP UNIT INFORMATION/ EXIT REMOTE CONTROL CODE (KEY) 7D04 (1) 111. CHECK SUM MODIFICATION DATA EEPROM DATA 2. WRITING CONFIRMAT

35、ION 3. START WRITING EEPROM WRITING FUNCTION 7D05 (2) 7D06 (3) 7D07 (4) 7D08 (5) 7D09 (6) 7D0A (7) 7D0B (8) 7D1A (TEST) 7D51 (SET MENU) 7D-57 (SLEEP) 7D-1D (EFFECT) 4. DC PROTECTION DSP-E800 DSP-E800 7 1. 2. 3. 4. 5. 6. 7. EFFECT LEVEL: MUTING: OFF INPUT (VIDEO): DVD/LD (DVD/LD) CENTER SPEAKER: LARG

36、E REAR SPEAKER: LARGE MAIN SPEAKER: LARGE LFE/BASS OUT: SWFR CHANNELCENTERR SURL SURSWFR LEVEL (dB)0000 C. Start-up display The protection history information appears on the front panel display. 2. BEGINNING AND CANCELLATION (1) Up the function and the display Up sub-menu No.1 of the diagnosis main

37、is selected. A. How to start the diagnostic program Use the front panel keys of the main unit Plug in the AC power cord. With the Power OFF, hold down the PROGRAM and EFFECT keys simultaneously (Step 1), then press the STANDBY/ON key (Step 2). Sub menu No. 1 of the diagnosis main menu No. 1 will sta

38、rt. B. Settings for start-up of diagnostic program The settings used when starting the diagnostic program are as follows. EFFECT key STANDBY/ON key PROGRAM key FRONT PANEL Step2. Press the STANDBY/ON key.Step1. Hold down the PROGRAM and EFFECT key simultaneously. DSP-E800 DSP-E800 8 G Protection his

39、tory function The following examples show how the protection history is displayed: Appears when the protection function has not been activated. Displayed the check sum (4-digit, hexadecimal) and the version (one letter) of the main microcomputer. Appears when the current protection function has been

40、 activated. When power is turned on in an abnormal condition, the power relay will come on, protection will operate immediately, and power will turn off. Appears when the power supply protection function has been activated. For the % value, the voltage at that point is shown by 5V/100%. When power i

41、s turned on in an abnormal condition, power will turn off after half a second. Appears when the power amp DC protection function has been activated. For the % value, the voltage at that point is shown by 5V/100%. When power is turned on in an abnormal condition, power will turn off after two seconds

42、. G FL display at start-up of diagnostic program When the diagnostic program has started, the check sum of the main microcomputer or the protection history (*) is displayed. If the protection function has been activated in the past, the type and voltage value are displayed. After a few seconds the d

43、iagnosis function menu will appear. (*)If a faulty condition is detected such as excessive current, a bad power supply or excessive amplifier DC offset, the Power will be switched OFF automatically. NOTE: For the voltages of the power and DC protection functions, see the diagnosis main menu No. 9, w

44、hich will be describbed later. The protection history will be cleared when RESERVED is selected in the diagnosis main menu No. 8 and FACTORY PRESET is engaged. D. Exiting method The diagnosis function can be exited by any of the following procedures. Take care with the setting of backup memory initi

45、alization menu (diagnosis No. 8) when releasing the diagnosis function. 1. Select sub-menu No. 3 EXIT of the diagnosis main menu No. 12. 2. Press the STANDBY/ON key on the main unit or STANDBY key on the remote control to turn Power OFF. CHK SUM: XXXX X IPROTECT I ON PS PRT:XX% DC PRT:XX% DSP-E800 D

46、SP-E800 9 G Selection by using the remote control unit The remote control codes in the menu list (see right column on page 6) correspond to the DSP program, test, set menu, sleep and effect keys. See the figure on the right. 3. OPERATION AND DISPLAY WHEN STARTING DIAGNOSIS FUNCTION (1) Selection of

47、diagnostic menu The diagnostic menu and the sub-menu can be selected by using the front panel keys of the main unit or the remote control unit. G Selection by using the front panel keys of the main unit The main menu can be changed cyclically by using the SET MENU /+ keys, and the sub-menu, by using the PROG