Kenwood-DPCX937-cd-sm 电路图 维修手册.pdf

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1、70% PORTABLE CD PLAYER DPC-X537-D/X537-H/X537-L/X637-H/X937-S SERVICE MANUAL 2003-7 PRINTED IN KOREA B51-5863-00 (K/K) 23 In compliance with Federal Regulations, following are repro- duction of labels on, or inside the product relating to laser product safety. KENWOOD Corp. certifies this equipment

2、conforms to DHHS Regulations No.21 CFR 1040. 10, Chapter 1, subchapter J. DANGER : Laser radiation when open and interlock defeated. AVOID DIRECT EXPOSURE TO BEAM. Miniature phone jack (E11-0971-05) DC jack (E03-0506-03) Charger Knob (K29-8301-13) Knob (K29-8303-03) DC jack (E03-0507-05) Miniature p

3、hone jack (E11-0960-05) Lid assy * (A53-) * Refer to parts list on page 9. SPECIFICATIONS Battery life (Fully charge) Main Unit Format System .Compact disc digital audio system Laser . Semiconductor laser Audio Frequency response . 20 Hz to 20 kHz, 9 +0.2 dB Headphone output level (16) . 5.0 mW + 5.

4、0 mW Line output/impedance . 0.420 V / 10 k Power supply DPC-X637 : Rechargeable batteries (NB-3A70). DC 1.2 V x 2 Commercially-available alkaline batteries (LR03) . DC 1.5 V x 2 DPC-X537 : Commercially-available alkaline batteries (LR03) . DC 1.5 V x 2 Dimensions (W x H x D). 131 mm x 21.7 mm x 132

5、 mm . (5- 3/16 x 7/8 x 5-3/16) Weight (net) .165 g (5.8 oz) Recharger stand (DPC-X637 only) Power supply AC adaptor (AC50040). DC 5.0 V Separately sold option part Rechargeable Nickel Metal Hydride Battery . NB-3A70 *1 : NB-3A70*2 : LR03 DPC-X637/DPC-X537 Approx. 15 Hours Rechargeable batteries *1 C

6、ommercially- available alkaline batteries *2 KENWOOD follows a policy of continuous advancements in development. For this reason specifications may be changed without notice. Sufficient performance may not be exhibited at extremely cold locations (Where water freezes). At 0.1mW+0.1mW output (16 load

7、). Standard value during continuous use/charging in an temperature of 20C. Time of use may vary depending on battery maker, battery type, use environment, and temperatute. Approx. 20 Hours NotesNotes RadioFans.CN 收音机爱 好者资料库 AC adapter (W08-0693-05): E4E9 (W08-0694-05): Y9 Remote controller assy (A70

8、-1638-05) Stereo headphone (W01-1818-05) Rechargeable battery (W09-1307-05): E4E9 (W09-1308-05): Y9 Battery case (W01-1823-05) Battery case (W01-1822-05) Cable clip (W01-1819-08) DPC-X537/X637/X937 2 ACCESSORIES / CAUTIONS Accessories ModelColorABB. DPC-X537-DORANGEE3 DPC-X537-HGREYY1 DPC-X537-HGREY

9、E2 DPC-X537-LBLUEE1 DPC-X637-HGREYE4 DPC-X937-SSILVERY9 DPC-X937-SSILVERE9 Color vs Model The marking of products using lasers (For countries other than U.S.A., U.S.-Military and Canada) The marking this product has been classified as Class 1. It means that there is no danger of hazardous radiation

10、outside the product. Location: Battery cover CLASS 1 LASER PRODUCT CAUTION INVISIBLE LASER RADIATION WHEN OPEN. DO NOT STARE INTO BEAM OR VIEW DIRECTLY WITH OPTICAL INSTRUMENTS. Inside this laser product, a laser diode classified as Class 3A laser radiation is contained as alerted by the internal ca

11、ution label shown above. Do not stare into beam or view directly with optical instruments. Location: Inside this product Note : 1. This system uses a microcomputer so it may malfunction due to external noise or interference. In such a case, unplug the power cord and remove the batteries, then re-con

12、nect the power cord and insert the batteries again. 2. Erroneous operation may occur when the headphone plug is plugged or unplugged; but this is not a malfunction. Cautions RadioFans.CN 收音机爱 好者资料库 2 ACEGIBDFHJ 1 3 5 7 4 6 R106 R107 C77 R108 R97 C80 C79 R109 L1 W5 C95 R129 C96 C97 C1 C11 R85 C94 C93

13、 C92 C91 R100 R101 C89 C90R99 C83 C84 R79 R81 R80 C85 R77 R78 C3 C28 R27 C35 R30 R130 C32 R29 X2 C30 C31 C27 R25 R47 R48 C48 C47 R46 C103 C46 R45 C45 R44 R40 R39 R43 R51 R52 R49 R50 C50 C49 C53 C38 C37 R32 C39 C40 R28 C29 C105 C34 C62 R62 C71 1 6 C66 R61 W6 C63 C64 C69 C100 R125 C82 R122 R115 C57 C5

14、4 C55 R57 R102 R103 R104 C86 R98 R110 C74 X1 C73 C65 R117 RST SCL 4 5 1 SBD 10 5 6 Lch Rch 24 R126 VDD SBT GND REM1 1 13 1 8 12 85 41 BATT+ +B BATT- TEST LDT LCK VC GND VDD RF FE TE 16.93MHz AGND KEY1 L3 L2 16.9344MHz 1 16 EB EB EB EB S7 S6 J2 LINE OUTPHONES DC IN EXT BATT REMOTE CONTROL D1 CN1 D5 D

15、4 Q14 Q13 J4 D3 Q10 Q9 D9 J3 CN2 J1 IC10 IC8 IC3 IC5 X32-7540-00 (J75-0005-02) (SIDE-A) Q15 Q25 Q26 Q4 D6 Q27 D2 Q28 S5 S4 S1 S3 S2 Q21 Q1 Q22 Q2 Q11 Q12 Q5 Q23 Q7 Q8 Q18 Q24 D7 D8 Q19 Q31 Q32 Q29 Q33 Q30 IC7 IC9 IC1 IC2 IC4 IC6 R205 R71 C75 R72 R68 C76 R69 R70 R73 R76 C78 R105 R120 R95 R96 C98 R1 R

16、75 C106 W7 R90 R89 R88 W3 C102 R84 R87 R86 R91 R92 R93R94 C88 R83 R82 R118 C15 R11 C14 R10 C13 R9 C18 R15 C16 R12 C17 R13 R14 C2 R2 C4 R3 C6 C5 C7 C8 R16 C12 R26 C19 R4 C20 R21 C22 C23 R20 R22 R23 R24 C104 R19 C26 C25 R128 C24 C21 R37 R38 R54 C52 C51 R53 R31 R33 R34 R36 R35 R5 R7 R119 C10 C60 C61 R5

17、9 R58 C59 C58 C70 R65 C68 R64 C81 C44 C42 C41 C43 C56 R55 R111 C87 W201 W202 R60 C72 R66 R67 R56 W2 C101 R114 R113 R112 R121 R116 R124 R123 R63 LID-SW ARF 24 R127 13 12 1 SVCC(2.43V) Lch AGNDAVCC(2.78V) 1 F E PD1 PD2 Rch OPT-D AGND Rch REM1 /REM2 LDATA 13 12 36 OPT-D 60 61 41 40 20 80 1 21 80 60 LSC

18、K Lch DGND SDA DC-IN BATT-DET 1 VOL-UP VOL-DOWN AMP-CNT Lch Rch A-GND 41 61 1732 161 13 54 24 25 1 48 STOP PLAY/UP DOWN VC GND KEY1 PD FCS+ SL+ SW-G1.5V L-SW SPL+ SPL- SL- VSUB(2.99V) VCC LD+ TRK+ TRK- 20 21 FCS- FE TE TEST 4 8 5 GNDBATT- GND EXT-DET BATT+ 40 37 EB EB EBEB EB EB EB EB EBEBEB EB EB E

19、B EB E EB B EB EB EB EB EB EB X32-7540-00 (J75-0005-02) (SIDE-B) Refer to the schematic diagram for the value of resistors and capacitors. PC BOARD 34 RadioFans.CN 收音机爱 好者资料库 ABDFHJCEGI 2 1 3 5 7 4 6 DPC-X537/X637/X937 X32-7540-00 (1/2)56 EUROPEE1 DESTINATION COUNTRY PX ABB. Y1 MODEL NAME DPC-X537-L

20、 JAPANJ DPC-X537-H JAPANJ1 EUROPEE2 DPC-X537-D JAPANJ2 E3EUROPE MODEL NAME DESTINATION EUROPE JAPAN COUNTRY E4 J3 ABB. DPC-X637 DPC-X637-H DPC-X737-S MODEL NAME DESTINATION JAPAN JAPAN COUNTRY J4 J5 ABB. DPC-X737-L DPC-X770-L DPC-X770-N JAPANJ6 JAPANJ7 DESTINATION DPC-X937-S DPC-X937 MODEL NAME EURO

21、PE COUNTRY JAPAN E9 ABB. J9 PXY9 TP8 TP7 BATT TP6 TP1 TP4 TP3 TP2 TP5 8 7 6 5 4 3 2 1 Lch IN NC NC AMP CNT GND Rch IN A GND +B TP7 TP8 1 2 3 4 IN2 SCTL BIAS IN1 8 7 6 5 OUT2 GND VCC OUT1 10K R1 0.1 C1 R9 10K 10K R2 0.1 C2 R8 10K 560 R10 4.7 C13 R3 47K C3 82P 100u10 + C5 100u10 + C6 R4 47K C4 82P R6

22、1.2K R12 1.2K 1.2K R13 C11 0.1 R14 1.2K 1K R11 0.01 C10 +3.7V +3.7V 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 E VCC GND PD2 LD+ GND VR MON-OUT PD1 VC F GND FCS+ TRK- TRK+ FCS- 1 2 3 4 5 6 SLED+ SLED- LIMIT-SW LIMIT-SW SPINDLE+ SPINDLE- 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 PD LD VCC EQSW RFOUT RFIN CA

23、GC ARF CEA 3TOUT DCDET OFTCNT BDO OFTR NRFDET LDON 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 LDR PDA PDC PDB PDF PDE TBAL FBAL GCTL FEOUT FEN TEOUT TEN VREF PDOWN GND 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 41 42 43 44 45 4

24、6 47 48 49 50 51 52 53 54 55 56 57 58 59 60 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 DVSS2 A3 A2 A1 A0 A9 A4 A5 A6 A7 A8 NCAS1 NCAS0 D3 D2 NRAS NWE D1 D0 DRVDD EXT2 DVDD1 DVSS1 X1 X2 NTEST SBCK SUBC NCLDCK PMCK SPPOL NRST STAT DMUTE SMCK PWMSEL BLKCK MLD MDATA MCLK ADPVCC DSLF DRF

25、 PLLF VCOF AVDD2 AVSS2 OUTL AVSS1 OUTR AVDD1 FSEL TMOD1 TMOD2 FLAG/SRMONI IPFLAG/CLVS EXT0 EXT1 IOVDD2 TX DVDD2 SPOUT TRVP TRVM TRP TRM FOP FOM IOVDD1 TBAL FBAL FE TE RFENV OFT NRFDET BDO LDON ARF IREF 24 23 22 21 20 19 18 17 16 15 14 13 VSS DQ3 DQ2 CAS OE A9 A8 A7 A6 A5 A4 VSS 1 2 3 4 5 6 7 8 9 10

26、11 12 VCC DQ0 DQ1 WE RAS NC A10 A0 A1 A2 A3 VCC WE RAS A10 A0 A1 A2 A3 CAS A9 A8 A7 A6 A5 A4 A10 RAS WE A1 A0 A3 A2 A1A6 4 1 3 2 DQ1 DQ0 VCC 6 5 9 8 7 NC RAS WE A0 A10 21 VSS DQ3 DQ2 24 22 23 A9 OE CAS A7 A8 19 20 16 17 18 12 11 10 VCC A3 A2 VSS A4 A5 13 14 15 A6 A9 EX2 A7 A8 A4 A5 0.1 C35 100u4 C34

27、 + 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 REM1 OPT-DET VREF+ NRST VDD SOSCMD XO XI SSTRT 8.4MHz OSC1 OSC2 VS

28、S LED OPT-SW DEST C1 C2 VLC1 VLC2 VLC3 COM3 COM2 COM1 COM0 SEG0 SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7 SEG8 SEG9 SEG10 SEG11 NC NC NC SDA BLKCK PLL-SW NC VDD TEST VCNT AC-DET OFF LM-SW EQSW OFTCNT PDOWN BEEP2 GCTL OFTR CHG AMP-CNT EXT-DET WP SCL REM2 KEY1 HP-STB MON CHG-D NC BEEP1 DSP-RST MDATA STAT MCL

29、K LDATA DMUTE LSCK MLD AMUTE BASS1 BASS2 LID-SW/SBD HOLD-SW/SBT 5 4 3 2 1 V+1 STB-TC IN1 OUT1 V+2 6 7 8 9 10 VREF STB IN2 OUT2 GND 1 2 3 4 AOUT AIN- AIN+ GND 8 7 6 5 V+ BOUT BIN- BIN+ 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 1 2 3 4 5 6 7 8 9 10 11 12 37 38 39 40 41 42

30、 43 44 45 46 47 48 MON FO1 RO1 DRGND2 FO2 RO2 VM RO3 FO3 DRGND2 RO4 FO4 VCNT PVCC2 REGB VG LG START VSEN PVCC1 DSW PGND1 USW SVCCF EMP RESET OFF PREGND EO EI SVCC CRP AVCC VSUB IN VSUB SSW FI1 RI1 RI2 FI2 FI3 RI3 FI4 RI4 CLK SOFT CT SPRT 10K R14 5.1K R15 5600P C18 55 100K R13 0.022 C17 330K C16 1 R1

31、2 W202 W201 54 31 30 32 R11 560P C15 30K 270P C13 68K R9 1K R10 C14 6800P 33 52 47u4 C3 + 2.2 R2 C4 0.047 50 C5 0.22 R3 10K 38 36 35 37 R4 R5 100K 100K 0.047 C7 C8 5600P 0.012 C6 34 22u4 C12 + 22u4 C10 + 10 R7 47u4 C1 + R1 10 F- T+ T- F+ 29 28 25 26 49 28 27 26 25 23 24 70 22 71 390P 1 C60 0.1 C58 C

32、59 48 17 1M R63 11K R58 0.01 C61 22K R59 47u4 C64 + C63 + 47u4 12K R62 R61 27K L1 330uH F+ F- T- T+ 29 28 26 25 1 C71 R65 100K C70 1 330uH C68 1 R64 33K 56uH L2 L3 22K R73 220K R71 220K R68 R111 1 C76 100K R69 R70 150K R72 C75 1220K 1K A3 A2 A1 A0 A9 A4 A5 A6 A7 A8 A10 CAS DQ3 DQ2 RAS WE DQ1 DQ0 EX2

33、 22 23 24 25 26 27 28 30 31 32 33 34 37 36 35 38 R27 330 + C28 R26 56 100u4 2.2K R19 0.01 C20 R21 56K C22R22 0.022100K 0.15 C23 0.068 C24 R23 180 0.47 C25R24 0.01 C26 2.2K R25 100 100u4 C27 + 41 35 29 31 R28 330 30 33 11 28 C29 0.1 71 70 C30 9P 9P C31 R29 47 X2 16.9344 47 R29 9P C30 C31 9P 16.93MHz

34、X1 0.1 C32 MHz C86 11 22P 150 R97 7 100K R96 100K R95 C87 1 10K R110 10K R98 19 R108 47K 20 4.3K R99 28 29 30 31 33 35 38 37 36 R102 220K R103 220K 34 32 27 25 23 10K R100 R101 6.2K 20 22 1 C89 C90 1 41 42 48 47 C93 0.1 55 54 52 50 49 10 R45 10 R46 0.22 C46 0.22 C45 C54 + 47u4 23 470 R55 47u4 C55 +

35、C56 0.33 1 R57 1 C44 1 C43 47u4 C57 + 10 R5 C41C42 18K R38 18K R37 1000P 1000P R44R43 R39R40 6.2K6.2K 3.3M3.3M 10u16 C53 + C51 0.33 R53 18KR54 12K C52 0.47 38 37 0.1 C82 C81 0.1 0.1 C77 1000P C101 1000P C102 220 R114 220 R113 C78 100P 100 R76 100K R75 0.01 C83 C85R79 330 R80 1.2K R78 C84 R82 47K R81

36、 24K R77 1000P 1 0.01220K 1 R83 1 R84 56 W2 27 R86 R85 1.8K 27 R87 27 R88 27 R112 W3 4.7K R90 4.7K R89 25 VOUT 5 VSS 4 VIN NC 2 1 CE 3 C72 68K R67 47K R66 0.1 47u4 C74 C73 + 0.1 100K R118 R119 10u16 + C100 10K R120 100K R121 + 10K10u16 220K 1.5K R117 2.2 R30 47 17 22 20 56K R20 0.022 C21 42 10 R104

37、60 SBT GND SBD RST VDD 17 39 40 17 40 39 C92 0.01 100u4 + C91 56 1.8K R94 3K R93 6.2K R92 24K R91 1 2 1 2 R115 150K 5 6 7 8 SDA SCL WP VCC 4 3 2 1 GND A2 A1 A0 +2.7V +2.7V +2.8V +2.7V +2.8V +2.7V +2.8V +2.8V +2.7V+2.7V +2.7V +2.8V +3V +3V +2.8V +2.4V +2.4V +2.7V +2.7V +2.7V +2.8V +3V +2.4V +3V +3V +

38、2.8V +2.4V+2.4V +2.8V +2.4V+2.4V +2.4V +2.4V +2.4V +2.4V +1.5V+1.5V +1.5V+1.5V+1.5V +1.5V +1.5V +1.5V+1.5V+1.5V +1.5V C19 560P 47u16 + C69 220u6.3 C66 + 18K R60 47u10 + C65 0.01 C88 C94 0.01 3.9K R5 0.1 C9 100u10 + C8 R34 100K 10u16 R33 100K 10u16 + C40 + C39 3.3K R35 3.3K R36 5.1K R16 47u4 + C62 A/

39、D PORT 100u4 C11 + C104 0.1 10 R128 0.01 C105 W5 W6 100K R130 R126 DQ1 DQ0 DQ2 DQ3 R127 DQ0 DQ1 DQ3 DQ2 C103 0.1 27 W7 1M R122 1M R123 R124 150K TP14 33K R116 47K R125 Q18 MODEL NAME DPC-X660 ABB. DESTINATION JAPAN COUNTRY J8 IC1 Q32 +5V +5V +5V +5V+5V +5V +5V+5V+5V +5V+5V +5V +5V+5V +B +B +B +B+B +

40、B +B +B +B +B +B +B +B +B +B +B +B+B +B +B+B +B+B +B +B +B +B +B +B +B +B +B +B +B +B +B +B +B +B +B +B +B +B +B (X32-7540-00) (X32-7540-01) (X32-7540-02) (X32-7540-03) J3 J1 EXT BATT DC JACK J2 Q2 D2 D1 Q1J CN1 CN2 DRAMDRAM RF AMP Q1 Q19 Q18 D8 Q21Q23Q24 Q22 Q5 F D3 D4 S6 LID SW S7 D5 AMPQ9 Q11 Q12

41、 G Q25 D2 Q28 C D Q31 Q32 Q31 D9 HOLD SW u-COM to KSM-1000BBC to KSM-1000BBC D7 Q2 D1 for FLASH u-COM TP9 TP10 TP11 TP12 TP13 /UP PLAY S1 STOP S2 DOWN S3 UP VOL S4 DOWN VOL S5 Q29 Q4 Q26 Q8 Q7 MUTE E D3 Q33 Q30 H DISC ON/OFF ERROR LD CONT PWR ON/OFF PWM/RESET LEVEL SHIFT BATT/AC ADP SW Q21 CONT CONT

42、 Q21 POWER START SUPPLY AC ADP CHECK QUICK CHARGE CHARGE OUT DSP PLL SW BEEP BASS BOOST (X32-7540-04) AMP REG OVER CHECK VOLTAGE GND- CONT Q26 OFF ON/ E2ROM 1.5V REG EXT-BATT CHECK CONT for REMO CON POWER SUPPLY IC1 (X27-1710-00) IC1 IC2 IC3IC4 IC9 IC5 IC8 IC6 IC7 (X32-7540-00) IC10 DPC-X537/X737/X9

43、37 7 KMOLN 0-00 UNIT No. EUROPEE1 DESTINATION COUNTRY PX ABB. Y1NONO 95,127 R27, YES EL NAME -X537-L JAPANJ -X537-H JAPANJ1 EUROPEE2 -X537-D JAPANJ2 E3EUROPE BCDEF YES X1 NO W5 NO IC4 47u4 C34 YES G YES UNIT No.EL NAME 0-01 DESTINATION EUROPE JAPAN COUNTRY E4 J3 ABB. YES CBDFE NOYES47u4NONONO C34GIC

44、4 R27, 95,127 W5X1 C-X637 -X637-H NO UNIT No. -X737-S EL NAME 0-02 DESTINATION JAPAN JAPAN COUNTRY J4 J5 ABB. NO CBDFE YESNO100u4YESYES C34G R27, 95,127 W5X1 -X737-L -X770-L -X770-N JAPANJ6 JAPANJ7 NO UNIT No. DESTINATION -X937-S C-X937 EL NAME EUROPE COUNTRY JAPAN 0-03 E9 ABB. J9 R27, YES BCDEF NO1

45、00u4 C34G YESYESNO 95,127 W5X1 PXY9 REM1 DGND AGND Rch Lch REM2/LDATA LSCK VDD GND Rch Lch GND VCC VIN 8 7 6 5 T2 D C T1 100u10 + C5 100u10 + C6 1.2K 1.2K R13 R14 1.2K +3.7V A3 A2 12 11 10 VCC A3 A2 VSS A4 A5 13 14 15 A4 A5 100u4 C34 + 3 2 1 STB-TC IN1 OUT1 V+2 8 9 10 STB IN2 OUT2 GND R105 100 34 32

46、 R106 100 20 R107 100 100P C95 C96 100P C97 100P R49 4.7 220u4 + C47 R51 2.2 4.7 R50220u4 + C48 2.2 R52 10 R45 10 R46 0.22 C46 0.22 C45 C49C50 1000P1000P 23 1 R57 47u4 C57 + 10K R56 36 C80 + 47u4 0.1 C79 220 R32 220 R31 1000P C38 C37 1000P 19 7 47K R109 0.01 C98 60 +B +2.4V 0.1 C9 100u10 + C8 R47R48

47、 22K22K 330 R129 H H H H R96, 130 130 R96, R96, 130 R96, 130 W6,7 YES YES W6,7 NO W6,7 W6,7 NO IC3 or IC3 IC3,4 A42U2604V-60 IC3,4 A42U2604V-60 IC41LV44002-50 IC41LV4400250T 47u40-04NOYES EL NAME C-X660 ABB. DESTINATION JAPAN COUNTRY UNIT No. J8 DEBCHFGC34 NONOYESNOYESYES 95,127 IC3IC4 R27, W6W5,7 1

48、30 R96, X1 IC1 IC41LV4400250T IC41LV44002-50 or IC41LV4400250T or IC41LV44002-50 +B +B +B +B +B +B 7540-00) 7540-01) 7540-02) 7540-03) J4 REMOTE CONTROL OUT LINE J2 Lch Rch SP D2 AC ADAPTOR 5.0V/400mA IC1 : BH7826FVM Q1: 2SC3940A(R,S) Q2: DTC124EUA or UN5212 or KRC403 D1: UDZ4.3B or HZUS4.3(B2) D2: CRS06 D3: UDZS8.2B or (X27-1710-00) J1 AM Q13 Q14 Q15 D6 B MUTE CONT MUTE Q27 IC1: AN22003A IC2: MN662787SC IC3,4 : IC5: NJM2776RB2 IC6: AN41502A IC7: XC62HR1502MR IC8: NJM12904V IC9: MN101