Panasonic-SAAKX74P-cs-sup 电路图维修手册.pdf

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1、 Panasonic Corporation 2012. All rights reserved. Unauthorized copying and distribution is a violation of law. PSG1207012SE A6 CD Stereo System Model No.SA-AKX74PH SA-AKX74PN SA-AKX94PH SA-AKX74PR SA-AKX94PR Product Color: (K).Black Type Subject : Updates on Block Diagram, Schematic Diagram, Printed

2、 Circuit Board, Exploded View & Parts List. TABLE OF CONTENTS PAGEPAGE 1 Notes - 2 2 Block Diagram (Updates) - 3 2.1. Power Supply (SA-AKX74PH/PN-K) - 3 2.2. Power Supply (SA-AKX94PH-K) - 4 3 Schematic Diagram (Updates) - 5 3.1. Main(MICON) Circuit (SA-AKX74PH/PN-K)- 5 3.2. Panel Circuit (SA-AKX74PH

3、/PN-K)- 8 3.3. CD Interface, Mic and Voltage Selector Circuit (SA-AKX74PH/PN-K)- 9 3.4. D-Amp Circuit (SA-AKX74PH/PN-K) -10 3.5. SMPS Circuit (SA-AKX74PH/PN-K)-11 3.6. CD Interface, Mic and Voltage Selector Circuit (SA-AKX94PH-K)-13 3.7. SMPS Circuit (SA-AKX94PH-K)-14 4 Printed Circuit Board (Update

4、s)-16 4.1. Panel, Remote Sensor, USB and Music Port P.C.B. (SA-AKX74PH/PN-K)-16 4.2. SMPS and D-Amp P.C.B. (SA-AKX74PH/PN- K)- 17 5 Exploded View (Updates)- 18 5.1. Packaging (SA-AKX74PH/PN-K) - 18 5.2. Packaging (SA-AKX94PH-K) - 19 6 Electrical & Mechanical Replacement Parts List (Updates) - 21 Ple

5、ase file and use this supplement manual together with the service manual for Model No. SA-AKX74PH/PN-K Order No. PSG1203050CE Model No. SA-AKX94PH-K Order No. PSG1203051CE Model No. SA-AKX74/94PR-K Order No. PSG1204034AE RadioFans.CN 收音机爱好者资料库 RadioFans.CN 收音机爱好者资料库 2 1Notes Background: For improv

6、ement of quality and performance. This supplement includes revised contents to the original service manual for below sections:- 1. Block Diagram 2. Schematic Diagram. 3. Printed Circuit Board. 4. Exploded View. 5. Electrical & Mechanical Replacement Parts List. RadioFans.CN 收音机爱好者资料库 3 2Block Diagr

7、am (Updates) 2.1.Power Supply (SA-AKX74PH/PN-K) With reference to original service manual (section 14.4) on pages 77. SA-AKX74PH/PN POWER SUPPLY (1/2) BLOCK DIAGRAM TO POWER SUPPLY BLOCK (2/2) 1 4 3 2 NOTE: “ * ” REF IS FOR INDICATION ONLY AC INLET P5701 F1 DZ5701 5,65,6 CN2007CN5802 77 CN2007CN5802

8、 +35V SENSE+35V SENSE +35V SENSE 88 CN2007CN5802SYS3.3VSYS3.3V PW +16V PW +5V DC DET PWR SYS3.3V SWITCHING MODE POWER SUPPLY CONTROL MIP2F20MSSCF IC5799 SHUNT REGULATOR C0DAZYY00039 IC5801 3 4 2 1 SUB TRANSFORMER T5751 MAIN TRANSFORMER T5701 TH5702 TH5860 TH5861 D5701 D5896 D5798 D5793 D5702 D5730 D

9、5795 D5725 D5731 D5729 D5726 D5802 D5803 D5804 -35V SENSE D5801 D5724,D5727 QR5802 DC DETECT Q5860,Q5861,Q5862 TRANSFORMER TEMPERATURE DETECT FEEDBACK CIRCUIT SYNC Q5898 SYNC SWITCH QR5810 PCONT SWITCH QR5801 SWITCH Q2035 AM BEATPROOF CIRCUIT Q5721 SWITCH Q5722 CURRENT LIMITING SWITCH PC5799 FEEDBAC

10、K 3 4 2 1 PC5701 FEEDBACK 1 2 4 3 PC5702 SYNC 4 3 1 2 PC5720 FEEDBACK SWITCHING REGULATOR C5HACYY00004.PN C5HACYY00005.PH IC5701 VCC OCP/BD FB D 35V SYNCSYNC DCDET2DC DET PWR +35V SENSE -35V SENSE DC16V PCONTPCONT SYNC 1,21,2 CN2007CN5802-35V SENSE -35V SENSE 5,65,6 ZJ5000*ZJ2001*+35V SENSE+35V SENS

11、E -35V SENSE 1,21,2 ZJ5000*ZJ2001*-35V SENSE TEMP DET 99 CN2007CN5802TEMP DET -35V TEMP DET TEMP DET IC5899 SHUNT REGULATOR C0DAZYY00039 C0DAEYY00040 DC DET PWR PCONT SMPS BP SMPS BP FROM/TO SERVO & SYSTEM CONTROL FROM/TO SERVO & SYSTEM CONTROL 1414 CN2007CN5802PCONT 1010 CN2007CN5802 DCDET2 1313 CN

12、2007CN5802 BLKBLK TL7*TL5* REDRED TL8*TL6* DC16V VOLT ADJ S5701 L5701 3 2 4 1 FOR PH FOR PH FOR PHFOR PN SMPS P.C.B. VOLTAGE SELECTOR P.C.B. MAIN P.C.B. 4 7 6 1 5 4 1 2 7 8 6 5 4 1 2 7 8 6 14 9 15 12 11 10 14 9 15 12 11 10 5 4 1 2 7 8 6 14 9 15 12 11 10 FB2 VDD1 D5 VCC4 CL3 5 6 3 2 1 7 8 10 K CRR Q5

13、720 VOLTAGE REGULATOR D5721 D5722 D5728 D5723 SECONDARYPRIMARY ECO CTL Q5899,QR5811,QR5812 ECO CTLECO CTL ECO CTL 1111 CN2007CN5802 +5V+5V 82 CN2011CN5902 5,65,6 ZJ5901*CN5801+35V SENSE 1,21,2 ZJ5901*CN5801-35V SENSE 35V +35V SENSE -35V SENSE -35V +5V 5V D-AMP P.C.B. CHANGE (IC5899) 4 2.2.Power Supp

14、ly (SA-AKX94PH-K) With reference to original service manual (section 14.4) on pages 81. SA-AKX94PH POWER SUPPLY (1/2) BLOCK DIAGRAM TO POWER SUPPLY BLOCK (2/2) 1 3 2 NOTE: “ * ” REF IS FOR INDICATION ONLY AC INLET P5701 F1 DZ5701 5,65,6 CN2007CN5802 77 CN2007CN5802 +35V SENSE+35V SENSE 5,65,6 ZJ5500

15、*CN5801+35V SENSE+35V SENSE 88 CN2007CN5802SYS3.3VSYS3.3V PW +16V DC DET PWR SYS3.3V SWITCHING MODE POWER SUPPLY CONTROL MIP2F20MSSCF IC5799 SHUNT REGULATOR C0DAZYY00039 IC5801 3 4 2 1 SUB TRANSFORMER T5751 MAIN TRANSFORMER T5701 TH5860 TH5861 D5701 D5896 D5798 D5793 D5702 D5730 D5795 D5725 D5731 D5

16、729 D5726 D5802 D5803 D5804 -35V SENSE D5801 D5724,D5727 QR5802 DC DETECT Q5860,Q5861,Q5862 TRANSFORMER TEMPERATURE DETECT FEEDBACK CIRCUIT SYNC Q5898 SYNC SWITCH Q5700 SWITCH QR5810 PCONT SWITCH QR5801 SWITCH Q2035 AM BEATPROOF CIRCUIT Q5721 SWITCH Q5722 CURRENT LIMITING SWITCH PC5799 FEEDBACK 3 4

17、2 1 PC5701 FEEDBACK 1 2 4 3 PC5702 SYNC 4 3 1 2 PC5720 FEEDBACK SWITCHING REGULATOR C1ZBZ0004646 IC5701 VCC OCP/BD FB DRIVE 35V SYNCSYNC DCDET2DC DET PWR +35V SENSE -35V SENSE DC16V PCONTPCONT SYNC 1,21,2 CN2007CN5802-35V SENSE -35V SENSE 1,21,2 ZJ5500*CN5801-35V SENSE 5,65,6 ZJ5000*ZJ2001*+35V SENS

18、E+35V SENSE -35V SENSE 1,21,2 ZJ5000*ZJ2001*-35V SENSE TEMP DET 99 CN2007CN5802TEMP DET -35V 35V +35V SENSE -35V SENSE -35V TEMP DET TEMP DET IC5899 SHUNT REGULATOR C0DAZYY00039 C0DAEYY00040 DC DET PWR PCONT SMPS BP SMPS BP FROM/TO SERVO & SYSTEM CONTROL FROM SERVO & SYSTEM CONTROL 1414 CN2007CN5802

19、PCONT 1010 CN2007CN5802 DCDET2 1313 CN2007CN5802 BLKBLK TL7*TL5* REDRED TL8*TL6* DC16V VOLT ADJ S5701 L5701 3 2 4 1 SMPS P.C.B. VOLTAGE SELECTOR P.C.B. MAIN P.C.B. 2 5 4 8 4 5 1 2 8 7 6 16 11 17 14 13 12 FB2 VDD1 D5 VCC4 CL3 5 6 3 2 1 7 8 10 K CRR Q5720 VOLTAGE REGULATOR D5721 D5722 D5728 D5723 SECO

20、NDARYPRIMARY D-AMP P.C.B. CHANGE (IC5899) 5 3Schematic Diagram (Updates) 3.1.Main(MICON) Circuit (SA-AKX74PH/PN-K) With reference to original service manual (section 16.3) on pages 87, 91 & 96. A 1234567891011121314 C D B E G H F B B MAIN(MICON) CIRCUIT SCHEMATIC DIAGRAM - 5 TO MAIN(MICON) CIRCUIT (

21、2/10) TO MAIN(MICON) CIRCUIT (6/10) P1 P1 1 MI: MAIN(MICON): SCHEMATIC DIAGRAM - 5 14 DA: MAIN(D-AMP): SCHEMATIC DIAGRAM - 15 16 : AUX/TUNER/MUSIC PORT/MIC AUDIO INPUT SIGNAL LINE : CD AUDIO INPUT SIGNAL LINE: AUDIO OUTPUT SIGNAL LINE: +B SIGNAL LINE : -B SIGNAL LINE: USB SIGNAL LINE: AM SIGNAL LINE

22、 : FM SIGNAL LINE SA-AKX74PH/PN MAIN(MICON) CIRCUIT 3/105/10 8/10 2/10 7/10 4/10 9/1010/10 1/10 6/10 2 R20564.7K C20723300PC2073 C2074 R20511K R21620 C2067 1 C20700.47 0.01 C2068 3300P 1 0.47C2071 R2054 0 R20574.7K R20521KR21930 R20606.8K R20594.7K C20830.022 3300PC2082 C2077 C2079 R20584.7K C2076 C

23、2078 C2153 10 C2081C2080 0.01 0.018 0.47 1K R2372 C2192 1 R2373 150K B1ABCF000231 Q2001 R2064 15K B1ABCF000176 Q2040 R2061 6.8K R2355 12K C2084C2088 0.0820.082 150KR2062 R2063 15K 10K 50V3.3C2086 R2356 1K B1ABCF000176 Q2037 C2087 4.7 C208550V3.3 C2075 0.01 0.018 0.47 0.01 1K R2374 1C2033 1C2034 C202

24、81 C20321 1000P C2024 1000P C2026 15K R2152 15K R2154 680R210310C2021 C20311 10C2020R2012680 C20291 C2054 1000P C2053 1000P C2043 1000P100P C2049 C2046 1000P100P C2050 C205750V4.7 10V33C2056 C2193 1 51 49 47 45 42 43 40 41 44 46 48 50 25 20 16 15 18 19 17 23 24 21 22 26 3835363032 312729 2834 333739

25、 614235 52 89711 121013 14 IC2000 C1AB00003256 ASP R2375 150K B1ABCF000176 Q2041 C2066 50V1 50V1C2061 R2294 6.8K R2295 6.8K AUX_L TUNER_R RCH_IN TUNER_L AUX_R C208950V3.3 R207856K R2077 1K C2242 0.1 C2093 16V1000 CLIP_ATTN R207933 C209050V1 C2092 0.068 ASP_DATA ASP_CLK CD_L CD_R DAGND PW_+9V AGND 10

26、0 R2246 Q2042 B1ABCF000176 R2377 1K SYS3.3V BASS_SHIFT RIGHT-OUT LEFT-OUT PW_+9V_1 MPORT_R MPORT_L SWITCH SWITCH SWITCH SWITCH SWITCH LCH_IN 26 SURTC 14 BPF2 15 BPF3 VOL2CAPA GND TONEB1B TONEB2B SRFIL TONEM1B TONEM2B SDA V+ SCL OUTB VOL2CAPB EXTSENSE INT TONEB1A TONEM1A TONEM2A TONEB2A BPF1 OUTA IN3

27、B 39 NC IN1B IN2B RECOUTB MONOUTB IN2A IN1A IN3A 1 NC IN5A RECOUTA MONOUTA IN6B VREF IN6DIFF IN5B NC IN6A NC NC NC IN4A IN4B NC VOLINAVOLINB TONEHBTONEHA MIC_GND R2426 68K C2055 C2060 47P100P 675 243 8 V+ V- 1 IC2002 C2059 C2064 47100 R2043 R2045 22K22K R2427 68K C2048 50V1 C2047 50V1 R2039 22K R204

28、4 22K C0ABBB000067 BUFFER AMP R2032 47K R2029 47K C2241 0.1 C2041 6.3V100 R2024 3.9K R2025 3.9K R2030 47K R2031 47K MIC C2037 0.047 R2050 22K R2053 22K R2129 0 (R2063) CHANGE 6 5758596061626364656667686970 A C D B E G H F : AUX/TUNER/MUSIC PORT/MIC AUDIO INPUT SIGNAL LINE : CD AUDIO INPUT SIGNAL LIN

29、E: AUDIO OUTPUT SIGNAL LINE: +B SIGNAL LINE : -B SIGNAL LINE: USB SIGNAL LINE: AM SIGNAL LINE : FM SIGNAL LINE P1 TO MAIN(MICON) CIRCUIT (4/10) MI: MAIN(MICON): SCHEMATIC DIAGRAM - 5 14 DA: MAIN(D-AMP): SCHEMATIC DIAGRAM - 15 16 TO MAIN(MICON) CIRCUIT (10/10) B B MAIN(MICON) CIRCUIT SCHEMATIC DIAGRA

30、M - 9 10/10 MAIN(MICON) CIRCUIT SA-AKX74PH/PN 3/105/10 8/10 2/10 7/10 4/10 9/10 1/10 6/10 L L TO D-AMP CIRCUIT (CN5902) IN SCHEMATIC DIAGRAM - 21 1 9 AA AB AC AD SW_MUTE R2133 0 B1GDCFJJ0047 MUTING CONTROL Q2006 C2119 6.3V220 UP_DGND C2238 2.2 3 2 6 7 4 5 1 9 8 CN2011 DC_DET_AMP MODE_DA MUTE_F PW_+5

31、V GND +5V AGND FHOP MOD_DA +5V GND DC_DET SUBWOOFER SIGNAL AGND MUTE F F_HOP AGND R2125 SW_LV2 Q2005 B1GDCFJJ0047 BUFFER R2111 47K C2113 50V1 C2109 SW_LV1 R2110 R2089 10K C2111 10M 0.01 Q2004 B1GDCFJJ0047 BUFFER R2119 C2112 1K R2145 10K R2147 C2125C2131 10.01 R2151 18K R2148 1K R2149 470 Q2008 B1ABC

32、F000176 MUTING R2179 12K R2180 100K Q2010 B1ABCF000176 SW LEVEL CONTROL R2167 2.2K Q2009 B1ABCF000176 SW LEVEL CONTROL R2132 1K R2131 C2118 10K 47P1K 0.56 R2124 100P 27K 15K C2122 15K10 C2124 10 675 24 V- 3 8 V+ 1 IC2004 C0ABBB000067 DUAL OP-AMP (R2124) CHANGE 7 A C D B E G H F 575859606162636465666

33、7686970 : AUX/TUNER/MUSIC PORT/MIC AUDIO INPUT SIGNAL LINE : CD AUDIO INPUT SIGNAL LINE: AUDIO OUTPUT SIGNAL LINE: +B SIGNAL LINE : -B SIGNAL LINE: USB SIGNAL LINE: AM SIGNAL LINE : FM SIGNAL LINE TO MAIN(MICON) CIRCUIT (9/10) 10/10 SA-AKX74PH/PN MAIN(MICON) CIRCUIT 3/105/10 8/10 2/10 7/10 4/10 9/10

34、 1/10 6/10 B B MAIN(MICON) CIRCUIT SCHEMATIC DIAGRAM - 14 TO MAIN(MICON) CIRCUIT (5/10) MI: MAIN(MICON): SCHEMATIC DIAGRAM - 5 14 DA: MAIN(D-AMP): SCHEMATIC DIAGRAM - 15 16 4 5 3 AA AB AC 6 7 AD 1.8K R2320 18K 27K 27K R2321 18K R2292 10K 0.068 C2204 R2290 4.7K R2293 10K C2213 0 1.8K R2305 R2308 0.06

35、8 C2205R2291 4.7K C2212 0 R2264 R226510K C2186 R2257 12K C2185 10 C2183 R2254 C2181 R2258 6800P 1M 0.68 10K 15K 675 243 8 1 IC2001 R2259 C2184 R2255 C2182 15K 6800P 1M 0.68 R225612K R2267 106.8K R2270 39K C2180 10 R22722.7K 0.1C2189 2.7KR2268 C217910 R2266 6.8K R2269 39K C2107 0 R2225 0 C2108 0 R222

36、4 0 Q2029 B1ABCF000176 BUFFER AMP R2244 4.7K R2245 4.7K R2242 27K C2166 0.056 Q2032 B1ABCF000176 BUFFER AMP R2241 27K R2238 1.8K R2239 1.8K C2169 0.15 C2165 0.056 C2168 0.15 R2434 C2200 25V220 R2435 1.8K R2048 33 R2436 4.7K 27K C2280 C2282 0.056 R2439 27K C2279 0.056 0.15 R2440 1.8K C2281 0.15 R2438

37、 4.7K Q2030 B1ABCF000176 BUFFER AMP Q2028 B1ABCF000176 BUFFER AMP 16V220C2190 C0ABBB000067 DUAL OP-AMP GND V+ FR_R_WOOFERDA FR_R_TWEETERDA FR_L_WOOFERDA FR_L_TWEETERDA CHANGE (R2320,R2321) 8 3.2.Panel Circuit (SA-AKX74PH/PN-K) With reference to original service manual (section 16.5) on pages 99. A 1

38、234567891011121314 1234567891011121314 C D B E G H F PANEL CIRCUIT SCHEMATIC DIAGRAM - 17 SA-AKX74PH/PN PANEL CIRCUIT 2/21/2 TO PANEL CIRCUIT (2/2) D D TO REMOTE SENSOR CIRCUIT (CN6200) IN SCHEMATIC DIAGRAM - 19 : -B SIGNAL LINE: +B SIGNAL LINE P1 : MUSIC PORT/MIC AUDIO INPUT SIGNAL LINE: AUDIO OUTP

39、UT SIGNAL LINE C C 123123 D6010 B0BC035A0007 B0EAMM000057 D6007 R6038 5.6K Q6003 B1BAAL000018 POWER SAVE CONTROL C6024 3300P R6049 47K R6039 47 L6000 J0JBC0000019 -VP B0EAMM000057 D6005D6008 DZ2J24000L C6028 50V47 GR1SG1 PW_CD3.3V GR11 GR12 SG2 SG3 C60210.01 GR2 GR3 GR8 GR9 GR3 GR2 GR6 GR4 GR5 GR1 G

40、R7 C6010330P 330P C6013330P C6012 R603382K GR10 GR11 GR12 NC NC NC NC NC NC NC NC GR8 GR9 GR3 GR2 GR6 GR4 GR5 GR1 NC NC NC F+ GR7 GR10 R6047 1 C6029 16V100 R6053 10 R6051 1 D6009 B0BC2R4A0006 53 4 8 7 62 1 9 T6000 G4DYA0000214 SWITCHING TRANSFORMER B0JAME000114 D6006 SG7 SG6 SG12 SG10 SG11 SG16 SG13

41、 SG15 SG14 SG8 SG9 SG4 SG1 SG3 SG2 SG5 SG7 SG6 SG12 SG10 SG11 SG16 SG13 SG15 SG14 SG8 SG9 SG4 SG1 NC NC NC F- SG3 SG2 SG5 C6031 0.1 22K R6054 C6032 50V22 C6023 50V47 GR6 GR5 GR8 GR9 GR7 SG6 SG5 SG9 SG7 SG8 GR4SG4 SG14 GR12 SG15 SG16 SG11 SG10 SG13 SG12 GR10 GR11 21 5 6 3 1 2 4 19 9 7 8 16 17 11 10 1

42、21514131820 35374244 4339 3841 4036 33 22 31 29 27 24 23 26 25 28 30 32 34 C0HBB0000057 FL DISPLAY DRIVER IC6000 C6003 0.1 220R6031 R6029220 FL_CLK FL_CS FL_DA 4352346183935312728252630293432333836374240411312151614911102324181917212220744 A2BB00000184 FL DISPLAY FL6000 R6030470 FL_GND PW_+18V S13 S

43、12 CLK STB P1G11 NC P3 S16 VEE S14 S15 G12/S17P2 OSC DIN K2 12 VSS K1 S2 S3 S1 S6 S5 S7 S4 22 S9 S8 VDD S10 S11 G3 G2 G1 G7 G9 G8 33 G10 G5 G4 G6 P0 44 VSS VDD 1000P 1000P 1000P 1000P 1000P 1000P 1000P 1000P 1000P 1000P 1000P 1000P C6004 C6005 C6007 C6008 C6009 C6011 C6014 C6016 C6018 C6019 C6020 C6

44、022 VR6001 K9AA012Y0004 VOL_JOGB ROT_JOGA C6027 100P 10K R6048 10K R6041 C6026 100P RMT ROT_JOGB 10K R6050 100P C6030 PW_SYS3.3V DGND EVEKE2F3524B VR6000 VOL_JOGA R6040 10K C6025 100P 2 1 4 3 CN6001 VREF+ ALBUM/TRACK DGND VOLUME RMT RMT P3 P2 P0 DELETE (D6011) ADD (D6007) 9 3.3.CD Interface, Mic and

45、 Voltage Selector Circuit (SA-AKX74PH/PN-K) With reference to original service manual (section 16.7) on pages 102. A 1234567891011121314 1234567891011121314 C D B E G H F A C D B E G H F H H CD INTERFACE CIRCUIT SCHEMATIC DIAGRAM - 20 SA-AKX74PH/PN CD INTERFACE / MIC / VOLTAGE SELECTOR CIRCUIT N N V

46、OLTAGE SELECTOR CIRCUIT MM TO SMPS CIRCUIT IN SCHEMATIC DIAGRAM - 23 A A TO CD SERVO CIRCUIT (FP8251) IN SCHEMATIC DIAGRAM - 4 TO LOADING P.C.B. (CD MECHANISM UNIT BRS11C) NOTE: “ * ” REF IS FOR INDICATION ONLY K K MIC CIRCUIT : +B SIGNAL LINE: MIC AUDIO INPUT SIGNAL LINE C C TO PANEL CIRCUIT (ZJ600

47、3*) IN SCHEMATIC DIAGRAM - 18 F F TO MUSIC PORT CIRCUIT (ZJ6402*) IN SCHEMATIC DIAGRAM - 19 FOR PH (BLK) TL5* TL6* (RED) S5701 VOLT ADJ 2 3 1 2 3 1 5 4 CN7001 + M7301* 6 8 9 7 2 1 1 4 5 3 10 10 CN7002 4 31 2 S7201 RESET + M7302* DGND OPEN_SW SPM+ SPM- LDM+ CLOSE_SW TRV+ LDM- LDM+ OPEN_SW DGND REST_S

48、W TRV- LDM- CLOSE_SW SPINDLE MOTOR TRAVERSE MOTOR 1 2 ZJ6501* 4 3 2 1 +9V MIC MIC_SW MIC_GND CHASSIS_GND CHASSIS_GND ZJ6500* 231 VR6500 EVUF2AF15B14 MIC VOLUME 1 7 6 4 2 3 5 JK6500 MIC C6516 0.01 C6517 0.01 C6515 1000P C650516V10 C6513 50V0.1 C650950V1 564123 91113141210 7 8 IN VREF INT V+ GND GAIN1 OUT