Manuale d’uso / di manutenzione del prodotto DC-DA370 del fabbricante Sanyo
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FILE NO. Service Manual Micr o Component System DC-DA370 (UK) PRODUCT CODE No. 129 599 00 REFERENCE No. SM 5810201 This service manual consists of "DC-DA370U" (Main unit : 129 598 00) and "SX-DA370" (Speaker system : 165 027 00). Contents Specifications .
- 1 - SPECIFICATIONS General Output power ......................... 12.5 W x 2 (at 4 ohms, 10% distortion) Inputs ..................................... VIDEO IN : 400 mV / 50k ohms Outputs .................................. SPEAKERS : 4 ohms PHONES : 8 - 32 ohms OPTICAL OUT:Optical Power requirements .
- 2 - LASER BEAM SAFETY PRECAUTION • Pick-up that emits a laser beam is used in this CD player section. CAUTION : USE OF CONTROLS OR ADJUSTMENTS OR PERFORMANCE OF PROCEDURES OTHER THAN THOSE SPECIFIED HEREIN MAY RESULT IN HAZARDOUS RADIATION EXPOSURE LASER OUTPUT .
- 3 - OPENING EXPANDED b a (2) Checking the "eye" pattern 1. Switch "ON" the POWER. 2. Connect an oscilloscope to TP1 (RF) and TP4 (VC). 3. Load the test disc. 4. Press the PLAY button. 5. Check to be sure that the "eye" pattern is at the center of waveform and that the diamond shape is clearly defined.
- 4 - TUNER ADJUSTMENTS 1. FM Step Adjusting Connection S G Se t Adjustment Remark Circuit I nput Output F requency Position 1 98.0MHz.Input Level Alignment voltage IC231 Alignment voltage IC231 FM Antenna SG=66dB μ V 3-22pin(TP24,25) is 0.0 ± 0.05V 3-22pin is 0.
- 5 - B A WHEN ASSEMBLING THE RACK GEAR AND CD LID When assembling the rack gear and CD lid, "A"part should be inserted into the "B" part. WHAT TO DO IF If the operation of the unit or display is not normal, even though the appropriate buttons have been pressed.
- 6 - EXPLODED VIEW (CABINET & CHASSIS) 12 1 2 15 15 16 3 4 6 72 73 7 Y02 Y03 Y05 Y07 54 55 Y05 Y04 Y01 Y05 Y05 Y06 24 56 58 57 71 26 27 28 32 29 30 30 31 25 14 17 33 53 52 18 19 20 22 23 21 5 9 1.
- 7 - PARTS LIST PRODUCT SAFETY NOTICE EACH PRECAUTION IN THIS MANUAL SHOULD BE FOLLOWED DURING SERVICING. COMPONENTS IDENTIFIED WITH THE IEC SYMBOL ! ! ! IN THE PARTS LIST AND THE SCHEMATIC DIAGRAM DESIGNATED COMPONENTS IN WHICH SAFETY CAN BE OF SPECIAL SIGNIFICANCE.
- 8 - PARTS LIST CD P.W.BOARD ASSY REF.NO. PART NO. DESCRIPTION 71 614 314 9606 ASSY,PWB CD (Only Initial) CN111 645 040 0513 SOCKET,FPC 15P or 645 026 2463 SOCKET,FFC 15P CN113 645 005 8127 PLUG,6P,B.
- 9 - PARTS LIST REF.NO. PART NO. DESCRIPTION S6218 614 240 1002 SWITCH,TACT or 645 006 5958 SWITCH,PUSH 1P-1T or 614 220 5471 SWITCH,TACT S6219 645 006 5958 SWITCH,PUSH 1P-1T or 614 240 1002 SWITCH,T.
- 10 - PARTS LIST REF.NO. PART NO. DESCRIPTION or 405 000 0904 TR DTA114YS or 405 078 2404 TR BN1A4P Q2452 405 078 2404 TR BN1A4P or 405 000 0904 TR DTA114YS or 405 151 5209 TR KRA107M or 405 036 3702.
- 11 - 1 3 2 5 4 6 7 ※ ※ ※ ※ ※ ※ ※ PARTS LIST(TAPE MECHANISM) TAPE MECHANISM REF.NO. PART NO. DESCRIPTION 614 315 4839 ASSY,MECHA,TM-DA370TN-SH 1 645 045 1799 R/P,E .
- 12 - IC BLOCK DIAGRAM & DESCRIPTION 1 4 5 2 3 VCC HEAD SWITCH CTRL1 CTRL2 GND IC443 BA7755A (Head Switch) IC440 AN7348K ( Play/Rec Pre Amp) Nor/Cro & Hi/Lo Logic R R P R P P ALC Mute Mute Lo.
- 13 - IC102 LC78622NE (Digital Signal Processor) N o. Pin Name I/ O Function 32 TEST3 I Test pin. 33 TEST4 I Test pin. 34 N C - Non connection. 35 MUT EL O Mute output terminal for L-ch 36 LVDD - Pow.
- 14 - Pin No Pi n Name Symbol I /O Function 1 P06 AMBER_LED O AMBER_LED Output 2 P07 DSP_RESET O DSP Reset Signal 3 P10/S00 COIN O CD_DSPInterface(command+data Output) 4 P11/SIO/SB0 SQOUT I CD_DSPInt.
- 15 - LCD DISPLAY DESCRIPTION F GH B IK J EC LN M A D SURR. S7 S5 S6 P S4 S3 S2 S1 *1 *1 T1 T2 18 COL 40 1 P AD NO . 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 COM1 COM1 -- -- -- 1F 1A 1K 1B .
- 17 - - 16 - SCHEMATIC DIAGRAM (CD) This is a basic schematic diagram. PRODUCT SAFETY NOTICE Each precaution in this manual should be followed during servicing. Components identified with the IEC symbol ! ! ! in the parts list and the schematic diagram designated components in which safety can be of special significance.
- 19 - - 18 - PRODUCT SAFETY NOTICE Each precaution in this manual should be followed during servicing. Components identified with the IEC symbol ! ! ! in the parts list and the schematic diagram designated components in which safety can be of special significance.
- 25 - - 24 - SCHEMATIC DIAGRAM (AMPLIFIER) This is a basic schematic diagram. PRODUCT SAFETY NOTICE Each precaution in this manual should be followed during servicing. Components identified with the IEC symbol ! ! ! in the parts list and the schematic diagram designated components in which safety can be of special significance.
- 27 - - 26 - SCHEMATIC DIAGRAM (TUNER) This is a basic schematic diagram..
- 28 - WIRING DIAGRAM (PRIMARY+ SECONDARY POWER TRANSFORMER AND CD LID SWITCH) POWER TRANSFORMER, PRIMARY P.W.BOARD POWER TRANSFORMER, SECONDARY P.W.BOARD CD LID SWTICH P.
- 29 - VOLTAGE TABLE IC101 LA9241M P I N 123456789 1 0 1 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 VOL(V) 2.51 2.51 2.54 2.54 2.52 2.52 2.52 2.52 2.52 2.52 2.52 2.52 2.52 2.52 2.52 2.52 2.52 2.52 P I N 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 VOL(V) 2.
- 30 - VOLTAGE TABLE IC445 MM1453XF P I N 123456789 1 0 1 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 VOL(V) 3.42 3.42 0 0 3.42 3.42 3.42 3.42 0 3.42 3.42 3.42 3.42 3.42 4.09 3.42 7.38 IC446 NJM78L05 123 17.3 0.58 5.48 IC601 LC867240A P I N 123456789 1 0 1 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 VOL(V) 0 4.
SANYO Technosound Co., Ltd. Osaka, Japan Apr. / '01 / 1000 BB Printed in Japan WIRING CONNECTION CD MECHANISM (6P) (15P) CN430 (3P) CN457 (2P) CN456 (2P) CN601 (32P) LCD60 (10P) CN??? (3P) CN1 13 (6P) C N 111 (15P) CN1 14 (5P) CN445 (10P) CN400 (32P) PHONES CN455 CN440 (6P) CN441 (3P) CN201 AM LOOP ANT .
- 21 - - 20 - FRONT P.W.BOARD WIRING DIAGRAM (CD & FRONT) CD P.W.BOARD.
- 23 - - 22 - AMPLIFIER P.W.BOARD WIRING DIAGRAM (TUNE & AMPLIFIER ) TUNER P.W.BOARD.
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il Sanyo DC-DA370 è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del Sanyo DC-DA370 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Sanyo DC-DA370 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Sanyo DC-DA370 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Sanyo DC-DA370, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del Sanyo DC-DA370.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Sanyo DC-DA370. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Sanyo DC-DA370 insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
