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1、SERVICE MANUAL MODELAVR-1905/785 AV SURROUND RECEIVER AVC-1590 AV SURROUND AMPLIFIER For U.S.A., Canada, Europe, U.K., Asia, China, Taiwan R.O.C., Korea 1IN/LOW; 2IN) 31 R-Y1 INPUT 30 B-Y1 INPUT 29 Y1 INPUT 28 I2C GND 27 R-Y2 INPUT 26 B-Y2 INPUT 25 Y2 INPUT 24 23 22 21 20 19 18 17 16 15 SW GND ADRS
2、SW R-Y/R OUTPUT B-Y/B OUTPUT Y/G OUTPUT SW Vcc (9V) SYNC Vcc (9V) CP/HP INPUT Dig GND SCP OUTPUT DAC2 DAC1 fsc Y DL Y DL SW SW PEDESTAL CLAMP 1H DL CONTROL SECAM CONTROL CbCr / UV SW fsc TRAP OFFSET SW LPF / fsc TRAP BPFH. AFCH C / D 32fH VCO V C / D ACC TOF SCP SW APC P / N ID SYSTEM CW MATRIX TINT
3、 DEMO CHROMA BLK NOSE DET YUV RGB MATRIX CP / HP IN SW V SEP SYNC SEP SUB-COLOR VCXO SUB- CONTRAST Y OFFSET SW DAC TEST Ys I2C BUS CONTROL PEDESTAL CLAMP PEDESTAL CLAMP HI: 20h/LOW: 24h 1 BIASVB1 2 VRT 27 COUT 3 VDD1 26 VSS1 4 TESTI1 25 YOUT 5 VSS2 24 VB2 6 VRB 23 PD 7 YCIN 22 FIL 8 TEST 21 VSS4 9 K
4、ILLER 20 VDD4 10 TESTI2 19 FSC 11 VDD3 18 TESTOUT 12 VSS3 17 MODE1 13 VDD2 16 SDA 14 TESTI3 15 SCL CORING PEAKING DAC 1/8 (8fsc) 8fsc4fsc DAC IIC BUS 28 PLL DET1/2VCO Ped. CLIP LPFDELAY CNR C-N.C CORING V-ENHANCER KILLER DYNAMIC COMB FILTER Sync. Clamp ADC LINE MEMORY LINE MEMORY INTERPOLATION MM74L
5、CX244 (IC809-811) BU2090F (IC302,607,615) 74LVX157 (IC816) 1 2 3 4 5 6 7 8 18 17 16 15 14 13 12 11Q3 VDD OE Q7 Q8 Q11 Q10 Q9 Q6 VSS DATA CLOCK LCK Q0 Q1 Q2 910Q4Q5 CONTROL CIRCUIT 12-bit SHIFT REGISTER 12-bit STRAGE REGISTER O U T P U T B U FFE R (O P E N D R A IN ) 1 2 3 4 5 6 7 8 20 19 18 16 15 14
6、 13 I3 VCC OE2 O2 I5 O0 I4 O1 I6 OE I0 O4 I1 O5 I2 O6 912 O7O3 1011 GNDI7 TOP VIEW 17 1A 1B 1Y 2A 2B 2Y GND 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 Vcc ST 4A 4B 4Y 3A 3B 3Y SELECT 5 SEL RadioFans.CN 20 AVR-1905/785 AVC-1590 BA7625 (IC651) BA7626 (IC612,613,616,652,653) IC63LV1024-10T (IC827) BD3812F
7、(IC702)MM74HCT244 (IC812)RC1117-1.2 (IC824) RC1117-3.3 (IC823) 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 Monitor OUT GND IN5 GND IN4 CTL E IN3 CTL D IN1 CTL A V OUT1 Vcc IN2 CTL B V OUT2 CTL C 6dB 6dB LOGIC LOGIC ABEMONITOR OUTCDEV OUT 1CDEV OUT 2 LL*IN 1LL* LL*IN 1 HL*IN 2HL*IN 2HL* LH*IN 3LH*IN 3LH*I
8、N 3 HHLIN 4HHLIN 4HHLIN 4 HHHIN 5HHHIN 5HHHIN 5 Note 1: * mark means that feasible for either H or L. Note 2: Each input terminal is provided with sink chip clamp (BA7625). Each input terminal takes 20kohm at the end (BA7626). ? ? 14 OUT1 13 OUT2 12 SEL DGND MUTE 11 10 DA VCC VEE AGND AGND AGND IN 1
9、 9 CL 87 6 5 4 2 LOGIC ? ? IN 23 1 20 1 19 2 18 3 17 4 16 5 15 6 14 7 13 8 12 9 11 10 1G 2G1A0 2A0 2A3 2Y01Y0 1Y3 1A1 2Y1 1A2 2Y2 1Y1 2A1 1Y2 2A21A3 2Y3 GND VCC 1 2 3 2 ADJ/GND OUT IN VOUT FRONT VIEW RadioFans.CN 21 AVR-1905/785 AVC-1590 LH28F800BJE (IC805) SN74LV573APW (IC818,819) SN74LVC139APWR (I
10、C820) 1 2 3 4 5 6 7 8 10 9 20 19 18 17 16 15 14 13 12 11 OE D0 D1 D2 D3 D4 D5 D6 D7 GND Vcc Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7 LE D Q L D Q L D Q L D Q L D Q L D Q L D Q L D Q L D0D1D2D3D4D5D6D7 L E OE 1 23456789 11 1213141516171819 Q0Q1Q2Q3Q4Q5Q6Q7 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 1G 1A 1B 1Y0 1Y1 1Y2 1
11、Y3 GND VCC 2G 2A 2B 2Y0 2Y1 2Y2 2Y3 FUNCTION TABLE (each decoder/demultiplexer) INPUTS OUTPUTS G SELECT OUTPUTS G BAY3Y2Y1Y0 LLLHHHL LLHHHLH LHLHLHH LHHLHHH HXXHHHH RadioFans.CN 22 AVR-1905/785 AVC-1590 2. FL DISPLAY 16-ST-66GNK (FL301) S38 S14 S9S1 S2 S3 S4 S5 S12 S13 S7S15 S6 S10 S11 G1 G1G2G3G4G5
12、G6G7G16G15G13G12G10G9 158 G14G11G8 G2G16 12345678910111213141516171819 232425262728293031323334 F1F1S1S2S3S4S5S6S7S8S9S10 S11 S12 S13 S14 S15 S16 S17 20 2122353637383940 4142434445464748495051525354555657 S18 S19 S20 S21 S22 S23 S24 S25 S26 S27 S28 S29 S30 S31 S32 S33 S34 S35 S36S37 S38 G16 G15 G14
13、G13 G12 G11 G10G9G8G7G6G5G4G3G2G1F2F2 58 S13 S14 S15 S16 S17 S18 S19 S20 S21 S22 S23 S24 G1G2G3G4G5G6G7G8G9G10G11G12G13G14G15G16 S38 S36 S37 S38 -2 DBS TV -1 VDP TAPE /(DVD) /(MD) AUXDVD CDRV.AUX TUNER -2 -3 CD -1 PHONO VCR REC ZONE2 STEREO AUTO TUNED RDS CH S1 S2 S3 S4 S5 S6 S7 S8 S9 S10 S11 S12 S1
14、 S2 S3 S4 S5 S6 S7 S9 S10 S11 S12 S1 S2 S3 S4 S5 S6 S7 S8 S9 S10 S11 S12 S13 S14 S15 S16 S17 S18 S19 S20 S21 S22 S23 S24 S13 S14 S15 S25 S26 S27 S28 S29 S30 S31 S32 S33 S34 S35 S25 S26 S27 S28 S29 S30 S31 S32 S33 S34 S35 G2G16G1G2G16G1G2G16G1G2G16G1 DIGITAL PRO LOGICII S1 S6 S11 S16 S21 S26 S31 S2 S
15、7 S12 S17 S22 S27 S32 S3 S8 S13 S18 S23 S28 S33 S4 S9 S14 S19 S24 S29 S34 S5 S10 S15 S20 S25 S30 S35 TUNED RDS STEREO AUTO REC ZONE2 PHONO VCR CD -1 TUNER -2-3V.AUX AUX CDR DVD / /TAPE VDPTV -1-2 /DBS PRO LOGICII DIGITAL DIGITAL ANALOG TUNED RDS STEREO AUTO REC ZONE2 PHONO VCR CD -1 TUNER -2-3V.AUX
16、AUX CDR DVD/ /TAPE VDPTV -1-2 / DBS CH CH PRO LOGICII DIGITAL DIGITAL ANALOG Pin Assignment F1, F2 : Filament G1G16 : Grid S1S38 : Anode PIN NO. CONNECTION PIN NO. CONNECTION PIN NO. CONNECTION Anode & Grid Assignment RadioFans.CN 23 AVR-1905/785 AVC-1590 PRINTED WIRING BOARDS MAIN P.W.B. UNIT (1/2)
17、 COMPONENT SIDE RadioFans.CN 24 AVR-1905/785 AVC-1590 MAIN PW.B. UNIT (2/2) FOIL SIDE RadioFans.CN 25 AVR-1905/785 AVC-1590 CPU / FRONT P.W.B. UNIT (1/2) COMPONENT SIDE RadioFans.CN 26 AVR-1905/785 AVC-1590 CPU / FRONT P.W.B. UNIT (2/2) FOIL SIDE RadioFans.CN 27 AVR-1905/785 AVC-1590 CNT P.W.B. UNIT
18、 (1/2) COMPONENT SIDE RadioFans.CN 28 AVR-1905/785 AVC-1590 CNT P.W.B. UNIT (2/2) FOIL SIDE RadioFans.CN 29 AVR-1905/785 AVC-1590 INPUT-VOL P.W.B. UNIT FOIL SIDECOMPONENT SIDE RadioFans.CN 30 AVR-1905/785 AVC-1590 INPUT-VOL-E3 P.W.B. UNIT ( E3 Model only) COMPONENT SIDEFOIL SIDE RadioFans.CN 31 AVR-
19、1905/785 AVC-1590 DSP P.W.B. UNIT COMPONENT SIDE FOIL SIDE RadioFans.CN 32 AVR-1905/785 AVC-1590 COMP/EXT-IN P.W.B. UNIT (1/2) COMPONENT SIDE RadioFans.CN 33 AVR-1905/785 AVC-1590 COMP/EXT-IN P.W.B. UNIT (2/2) FOIL SIDE RadioFans.CN 34 AVR-1905/785 AVC-1590 COMP P.W.B. UNIT FOIL SIDE COMPONENT SIDE
20、RadioFans.CN 35 AVR-1905/785 AVC-1590 D-VIDEO/PRE-OUT P.W.B. UNIT (Japan model only) FOIL SIDE COMPONENT SIDE RadioFans.CN 36 AVR-1905/785 AVC-1590 NOTE FOR PARTS LIST 5%1/4W 1/16W ss ss ss ss ss ss RD :2B : 1/8 WF :1%P: RC :2E : 1/4 WG :2%NL : RS:2H : 1/2 WJ :5%NB : RW :3A : 1WK :10%FR : RN :3D : 2
21、WM :20%F: RK :3F: 3W 3H : 5W RN14K2E182GFR 182 ? 1800=1.8k 0 2 1R2 ? 1.2 1 2R CE04W1H2R2MBP CE:0J: 6.3 VF: 1%HS : CA :1A : 10VG : 2%BP : CS:1C : 16VJ: 5%HR : CQ :1E : 25VK : 10%DL : CK :1V : 35VM : 20%HF : CC :1H : 50VZ: +80%U:UL CP:2A : 100 V20%C:CSA CM :2B : 125 VP: +100%W:UL-CSA CF:2C : 160 V 0%F
22、: CH :2D : 200 VC : 0.25pF 2E : 250 VD : 0.5pF 2H : 500 V=: 2J: 630 V 222 ? 2200F 0 2 F 222 ? 2200pF=0.0022F 0 2 pF pF 221 ? 220pF 2 (02) 0 (001) 2R2 ? 2.2F 1 2R F AC RD : Carbon2B : 1/8WF: 1%P: Pulse-resistant type RC : Composition2E : 1/4WG: 2%NL : Low noise type RS : Metal oxide film2H : 1/2WJ: 5
23、%NB : Non-burning type RW : Winding3A : 1WK: 10%FR : Fuse-resistor RN : Metal film3D : 2WM: 20%F: Lead wire forming RK : Metal mixture3F : 3W 3H : 5W CE : Aluminum foil0J: 6.3VF: 1%HS : High stability type electrolytic CA : Aluminum solid1A : 10VG : 2%BP : Non-polar type electrolytic CS : Tantalum e
24、lectrolytic1C : 16VJ: 5%HR : Ripple-resistant type CQ : Film1E : 25VK : 10%DL : For change and discharge CK : Ceramic1V : 35VM : 20%HF : For assuring high requency CC : Ceramic1H : 50VZ: +80%U: UL part CP : Oil2A : 100V20%C: CSA part CM : Mica2B : 125VP : +100%W : UL-CSA type CF : Metallized2C : 160
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