Instruction/ maintenance manual of the product DC-DA370 Sanyo
Go to page of 26
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.
An important point after buying a device Sanyo DC-DA370 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Sanyo DC-DA370 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Sanyo DC-DA370 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Sanyo DC-DA370 you will learn all the available features of the product, as well as information on its operation. The information that you get Sanyo DC-DA370 will certainly help you make a decision on the purchase.
If you already are a holder of Sanyo DC-DA370, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Sanyo DC-DA370.
However, one of the most important roles played by the user manual is to help in solving problems with Sanyo DC-DA370. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Sanyo DC-DA370 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
