Sony-DPSV55-mep-sm 电路图 维修手册.pdf

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1、MICROFILM SERVICE MANUAL MULTI-EFFECT PROCESSOR US Model Canadian Model DPS-V55 AEP Model UK Model DPS-V55M SPECIFICATIONS DPS-V55/V55M Photo: DSP-V55 RadioFans.CN 收音机爱 好者资料库 2 ATTENTION AU COMPOSANT AYANT RAPPORT LA SCURIT! LES COMPOSANTS IDENTIFIS PAR UNE MARQUE ! SUR LES DIAGRAMMES SCHMATIQUES ET

2、 LA LISTE DES PICES SONT CRITIQUES POUR LA SCURIT DE FONCTIONNEMENT. NE REMPLACER CES COM- POSANTS QUE PAR DES PICES SONY DONT LES NUMROS SONT DONNS DANS CE MANUEL OU DANS LES SUPPLMENTS PUBLIS PAR SONY. SAFETY-RELATED COMPONENT WARNING! COMPONENTS IDENTIFIED BY MARK ! OR DOTTED LINE WITH MARK ! ON

3、THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB- LISHED BY SONY. TABLE OF CONTENTS 1.SERVICING NOTES. 2 2.GENERAL. 5 3.DISASSEMBLY. 9 4.TEST MODE. 11 5.DIAGRA

4、MS. 13 5-1.Printed Wiring Board MAIN Section . 15 5-2.Schematic Diagram MAIN Section (1/3) . 17 5-3.Schematic Diagram MAIN Section (2/3) . 19 5-4.Schematic Diagram MAIN Section (3/3) . 21 5-5.Printed Wiring Boards PANEL Section . 23 5-6.Schematic Diagram PANEL Section . 25 5-7.IC Pin Function Descri

5、ption . 28 6.EXPLODED VIEWS. 32 7.ELECTRICAL PARTS LIST. 34 RadioFans.CN 收音机爱 好者资料库 3 SECTION 1 SERVICING NOTES ROM VERSION CHECK This system have ROM version check function consequently key set up of when power on. (No need in open the main body) 1) Press three buttons ENTER, EXIT, and POWER simul-

6、 taneously, in the power off. 2) Fluorescent indicator tube indicate ROM version about 1 sec- ond, and restart system. UPDATING THE ROM (IC704) VERSION The ROM version may be updated in order to fix the bugs or add the functions. “All Initialize!” is displayed and internal data are automatically ini

7、tialized, if the power is turned on after replacing the ROM. In this case, the user preset data and system data cannot be restored. Please notify the users of this matter. If the same version ROM was replaced for repair, not for version updating, the data are not initialized unless internal data are

8、 dam- aged. Nevertheless, to avoid a trouble, it is recommended to save inter- nal data using the Data Filer, etc. The initial version of the ROM will be Ver.1.00 part No. 8-759- 499-74. Note: Internal data mentioned above are all saved in the IC702 (CY6225LL) when the power is turned off. REPLACING

9、 THE BATTERY The built-in battery must be replaced, if “Battery Low!” is dis- played at the power ON. When the battery was used up com- pletely, internally saved data (system data, user preset data, etc.) are all cleared, and “Ext. RAM Error!” “All Initialize!” are dis- played at the power ON, then

10、the data are initialized to the factory setting automatically. In this case, the user preset data and system data cannot be restored. Please notify the users of this matter. Unless “Ext. RAM Error” “All Initialize!” are displayed at the power ON, internal data are still saved, and in this case, inte

11、rnal data are kept unchanged if the battery is replaced while the power is turned on. To avoid a trouble, it is recommended to save internal data using the Data Filer, etc. This information is given to the users on page 19 of the Operation Manual. Ver 1.00 Flexible Circuit Board Repairing Keep the t

12、emperature of the soldering iron around 270 C during repairing. Do not touch the soldering iron on the same conductor of the circuit board (within 3 times). Be careful not to apply force on the conductor when soldering or unsoldering. Notes on chip component replacement Never reuse a disconnected ch

13、ip component. Notice that the minus side of a tantalum capacitor may be dam- aged by heat. ADVARSEL Eksplosjonsfare ved feilaktig skifte av batteri. Benytt samme batteritype eller en tilsvarende type anbefalt av apparatfabrikanten. Brukte batterier kasseres i henhold til fabrikantens instruksjoner.

14、VARNING Explosionsfara vid felaktigt batteribyte. Anvnd samma batterityp eller en likvrdig typ som rekommenderas av apparattillverkaren. Kassera anvnt batteri enligt gllande freskrifter. VAROITUS Paristo voi rjht, jos se on virheellisesti asennettu. Vaihda paristo ainoastaan laitevalmistajan suositt

15、elemaan tyyppiin. Hvit kytetty paristo valmistajan ohjeiden mukaisesti. ADVARSEL! Lithiumbatteri-Eksplosionsfare ved fejlagtig hndtering. Udskiftning m kun ske med batteri af samme fabrikat og type. Levr det brugte batteri tilbage til leverandren. CAUTION Danger of explosion if battery is incorrectl

16、y replaced. Replace only with the same or equivalent type recommended by the manufacturer. Discard used batteries according to the manufacturers instructions. RadioFans.CN 收音机爱 好者资料库 4 SAFETY CHECK-OUT After correcting the original service problem, perform the follow- ing safety check before releasi

17、ng the set to the customer: Check the antenna terminals, metal trim, “metallized” knobs, screws, and all other exposed metal parts for AC leakage. Check leakage as described below. LEAKAGE TEST The AC leakage from any exposed metal part to earth ground and from all exposed metal parts to any exposed

18、 metal part having a return to chassis, must not exceed 0.5 mA (500 microampers.). Leakage current can be measured by any one of three methods. 1.A commercial leakage tester, such as the Simpson 229 or RCA WT-540A. Follow the manufacturers instructions to use these instruments. 2.A battery-operated

19、AC milliammeter. The Data Precision 245 digital multimeter is suitable for this job. 3.Measuring the voltage drop across a resistor by means of a VOM or battery-operated AC voltmeter. The “limit” indication is 0.75 V, so analog meters must have an accurate low-voltage scale. The Simpson 250 and Sanw

20、a SH-63Trd are examples of a pas- sive VOM that is suitable. Nearly all battery operated digital multimeters that have a 2 V AC range are suitable. (See Fig. A) Fig. A.Using an AC voltmeter to check AC leakage. 1.5 k0.15 F AC voltmeter (0.75 V) To Exposed Metal Parts on Set Earth Ground 5 SECTION 2

21、GENERAL This section is extracted from instruction manual. 6 7 8 9 CASE FRONT PANEL ASSY SECTION 3 DISASSEMBLY 2 two screws (case 3 TP2) 1 three screws (case 3 TP2) 3 case 1 two screws (case 3 TP2) 2 two screws (case 3 TP2) 5front panel assy 4clamp 1flat wire (23 core) (CN702) 3four screws (BVTT3 6)

22、 1connector (CN703) 2three screws (BVTT3 6) Note: Follow the disassembly procedure in the numerical order given. 10 BACK PANEL MAIN BOARD 4back panel 2four lock screws 2six screws (BVTP3 10)1connector (CN601) 3screw (BVTT3 6) 3three screws (BVTT3 6) 3screw (BVTT3 6) 3MAIN board 1flat wire (23 core)

23、(CN702) 2two screws (BVTT3 6) 1connector (CN301) 2two screws (BVTT3 6) 1connector (CN101) 1connector (CN602) 1connector (CN701) 1connector (CN703) 11 SECTION 4 TEST MODE Operation of Test Mode The test mode is executed according to order the following. Press N button, and come back the before item.

24、1Begin the test mode 1) PressPOWERbutton while Press three buttons SYSTEM, BYPASS and N simultaneously. 2) The self-diagnosis is executed and indicated error mes- sages in case of something wrong a hardware (See Self- diagnosis Message), begin the test mode in case of no damage. Display: 2Key switch

25、 and rotary encoder check 1) Press any switch button, and display a figure to button. ButtonDisplayButtonDisplay n0ENTER4 N1SAVE5 BYPASS2SYSTEM6 Fx TYPE3EXIT7 2) Right down of display value increases like 1, 2, 3. if rotating JOG knob in clockwise, or decreases like 0, 9, 8. if rotating in counter c

26、lockwise. (Limit of figure: 000 to 255) Display: 3MIDI circuit check Preparation: The MIDI cable (DIN cable) between MIDI IN connec- tor and MIDI OUT/THRU connector. (If not available this check with not connect cable) 1) Press n button. (This check begin with display all figure of switch but- ton a

27、nd rotary encoder position.) 2) Begin the MIDI circuit check, and display result. Display: No problem Circuit problem or no connecting cable If retry of check, Press n button, and Press N button with begin. 4Signal check 1 (Bypass check mode) 1) Press n button. 2) Enter the bypass check mode. Analog

28、 output muting is OFF, and each channel the out- put signal as intact as input signal. Display: 5Signal check 2 (Sine wave output mode) 1) Press n button. 2) Enter the sine wave output mode. Each channel output jack output a sine wave 1 kHz (about 7.3 Vp-p). (Input have muting) Display: 6Ending the

29、test mode 1) Press n button. 2) The display change the following. Display: Item 1 or 2 is executed at the work contents. 1 Next item (A) - (E) is press ENTER button. (A)Change the ROM. (B)Change the battery. (C)Change the RAM. (D)Customer request is initial state. (E)Besides the above-mentioned. Rep

30、air connected with hardware on the main board. This case display the following few seconds, and come up power. (Initialize is done.) Display: 2 Next item (F), (G) is press EXIT button. (F)Hardware is not change repair. (G)Only check, such as function check. This case come up power usual. (No initial

31、ize) * * * * * * * * * * * * * * * * * switch buttons figure (state of pressed all) rotary encoder count (optional value) 12 Self-diagnosis Display (1)ROM Error Contents: Data of EPROM (IC704) is wrong. Method: Check the bridge is possible and if find out a repair. IC704 insert the socket is wrong,

32、if find out a insert again. Display: (2)Internal RAM Error Contents: Internal RAM of micro computer (IC701) is wrong. Method: Perform an initialize. (See Initialize Method.) Replace the IC701, if do not restore of the ini- tialize is not happen another error messages. Display: (3)External RAM Error

33、Contents: Internal data of SRAM (IC702) is wrong. Method: Check the bridge is possible and if find out a repair. Perform an initialize. (See Initialize Method.) Replace the IC702, if do not restore of these items the above-mentioned and not happen an- other error messages. Display: (4)DRAM Error Con

34、tents: Internal data of DRAM (IC503) is wrong. Method: Check the bridge is possible and if find out a repair. Display: (5)Battery Low Contents: Exhaust the power of lithium battery (BA501). Method: Replace the BA501. Check a point of contact, if do not restore of replace the BA501. Display: Initiali

35、ze Method Press three buttons SAVE, SYSTEM, and POWER si- multaneously, and the display of fluorescent indicator tube changes to “All Initialize!”, and restart system. DPS-V55/V55M 13 14 SECTION 5 DIAGRAMS Circuit Boards Location VOLUME board LCD board ENCODER board MAIN board POWER SWITCH board POW

36、ER COVER board JACK board (DPS-V55M) Note on Schematic Diagram: All capacitors are in F unless otherwise noted. pF: F 50 WV or less are not indicated except for electrolytics and tantalums. All resistors are in and 1/4 W or less unless otherwise specified. C : panel designation. Note on Printed Wiri

37、ng Boards: X : parts extracted from the component side. Y : parts extracted from the conductor side. b : Pattern from the side which enables seeing. Indication of transistor. U : B+ Line. V : B Line. Voltages and waveforms are dc with respect to ground under no-signal conditions. Voltages are taken

38、with a VOM (Input impedance 10 M). Voltage variations may be noted due to normal produc- tion tolerances. Waveforms are taken with a oscilloscope. Voltage variations may be noted due to normal produc- tion tolerances. Circled numbers refer to waveforms. THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS

39、AND SCHEMATIC DIAGRAMS. (In addition to this, the necessary note is each block.) B These are omitted. CE Q Note: The components identi- fied by mark ! or dotted line with mark ! are criti- cal for safety. Replace only with part number specified. Note: Les composants identifis par une marque ! sont c

40、ritiques pour la scurit. Ne les remplacer que par une pice portant le numro spcifi. IC Block Diagrams MAIN BOARD IC501, 551CS4222-KS IC505TC74VHC74F IC703M62021FP-600C 234 ANALOG LOW-PASS & OUTPUT STAGE SERIAL AUDIO DATA INTERFACE CONTROL PORT DIGITAL FILTER WITH DE-EMPHASIS VOLUME CONTROL RIGHT DAC

41、 LEFT DAC RIGHT ADC DIGITAL FILTER LEFT ADC VOLUME CONTROL 5 28 27 26 678910 11 121314 15 252423222120 191817 16 1 MCLK LRCK NC SCLK VD DGND SDOUT SDIN SCL/CCLK SDA/CDIN DEM0 NC NC AINR AINR+ DEM1 AINL AINL+ VA AGND AOUTR AOUTR+ AOUTL+ AOUTL NC SMUTE AD0/CS RST Signal path. F: CH1 L: CH2 f: CH3 h: C

42、H4 g : DIGITAL (CH1, 2) i : DIGITAL (CH3, 4) 14 1234567 13 12 111098 VCC GND CK CLR CK CLR Q PR Q Q PR Q D D 234 COMPARATOR 5678 1 RESET CIRCUIT DELAY CIRCUIT 1.24V GND RES CT VIN VBAT VOUT CS RES DPS-V55/V55M 15 16 5-1.PRINTED WIRING BOARD MAIN Section See page 13 for Circuit Boards Location. See p

43、age 14 for Note on Printed Wiring Board. (Page 23) (Page 23) (Page 23) (Page 24) (Page 23) (Page 23) DPS-V55/V55M 5-2.SCHEMATIC DIAGRAM MAIN Section (1/3) See page 14 for Note on Schematic Diagram and IC Block Diagrams. See page 27 for Waveforms. Semiconductor Location Ref. No. Location D101E-10 D10

44、2E-10 D103E-10 D104E-10 D151C-5 D201E-10 D202E-10 D203E-10 D204E-10 D301E-8 D302E-8 D303E-8 D304E-8 D401E-8 D402E-8 D403E-8 D404E-8 D601H-13 D602H-13 D603H-13 D604H-13 D605H-12 D606H-12 D607H-12 D608H-12 D609G-10 D610H-10 D651G-11 D652H-11 D701C-2 D751B-4 IC101B-13 IC102C-13 IC103C-8 IC104C-8 IC201B

45、-12 IC202C-12 IC203C-8 IC301B-11 IC302C-11 IC303C-7 IC304C-7 IC401B-9 IC402C-9 IC403C-6 IC501F-9 IC502E-5 IC503D-5 IC504H-5 IC505H-6 IC506H-7 IC507H-7 IC551F-7 IC601G-10 IC602H-10 IC603I-10 IC604I-8 IC701G-3 IC702E-3 IC703B-2 IC704D-3 IC705C-3 Q101B-8 Q151B-6 Q152B-5 Q201B-7 Q301B-6 Q401B-6 Q651G-11

46、 Q652G-11 Q701E-1 Q702A-2 Q703I-5 Q704I-5 Q751B-4 Q752B-3 Q753B-3 17 18 (Page 25) (Page 25) (Page 26) (Page 25) (Page 25) (Page 19) DPS-V55/V55M 19 20 5-3.SCHEMATIC DIAGRAM MAIN Section (2/3) See page 14 for Note on Schematic Diagram and IC Block Diagrams. See pages 15 and 16 for Printed Wiring Boar

47、d. See page 27 for Waveforms. (Page 18)(Page 21) DPS-V55/V55M 21 22 5-4.SCHEMATIC DIAGRAM MAIN Section (3/3) See page 14 for Note on Schematic Diagram and IC Block Diagrams. See pages 15 and 16 for Printed Wiring Board. See page 27 for Waveforms. The components identified by mark ! or dotted line with mark ! are critical for safety. Replace only with part number specified. Les composants identifis par une marque ! sont critiques pour la scurit.Ne les remplacer que par une pice portant le numro spcifi. (Page 20) (Page 25) DPS-V55/V55