For U.S.A. & Canada model SERVICE MANUAL Ver. 1 MODEL AVR-1505/485 AV SURROUND RECEIVER For purposes of improvement, specifications and design are subject to change without notice. Please use this service manual with referring to the operating instructions without fail. Some illustrations using in this service manual are slightly different from the actual set. 16-11, YUSHIMA 3-CHOME, BUNKYO-KU, TOKYO 113-0034 JAPAN X0207 V.01 DE/CDM 0407 AVR-1505/485 SAFETY PRECAUTIONS The following check should be performed for the continued protection of the customer and service technician. LEAKAGE CURRENT CHECK Before returning the unit to the customer, make sure you make either (1) a leakage current check or (2) a line to chassis resistance check. If the leakage current exceeds 0.5 milliamps, or if the resistance from chassis to either side of the power cord is less than 460 kohms, the unit is defective. 500V 1M (1) (2) (1) (2) 2 AVR-1505/485 DIMENSION 3 AVR-1505/485 CAUTION IN SERVICING Initializing AV SURROUND RECEIVER AV SURROUND RECEIVER initialization should be performed when the µcom, peripheral parts of µcom, and Digital P.W.B. are replaced. 1. Switch off the unit. 2. Hold the following SPEAKERS-A button and SPEAKERS-B button, and switch on the unit. 3. Check that the entire display is flashing with an interval of about 1 second, and release your fingers from the 2 buttons and the microprocessor will be initialized. Note: If step 3 does not work, start over from step 1. All user settings will be lost and this factory setting will be recovered when this initialization mode. So make sure to memorize your setting for restoring after the initialization. 4 AVR-1505/485 ADJUSTMENT Audio Section Idling Current Required measurement equipment: DC Voltmeter 1. Preparation (1) Avoid direct blow from an air conditioner or an electric fan, and adjust the unit at normal room temperature 15 °C ~ 30 °C (59 °F ~ 86 °F). (2) Presetting · POWER (Power source switch) OFF · SPEAKER (Speaker terminal) No load (Do not connect speaker, dummy resistor, etc.) 2. Adjustment (1) Remove top cover and set VR101, VR102, VR103, VR104, VR105, on Amp. Unit, VR106 on SURR.-BACK ch Amp. Unit at fully counterclockwise ( ) position. (2) Connect DC Voltmeter to test points (FRONT-Lch: TP104, FRONT-Rch: TP105, CENTER ch: TP103, SURROUND-Lch: TP101, SURROUND-Rch: TP102, SURROUND-BACK ch: CP106). (3) Connect power cord to AC Line, and turn power switch "ON". (4) Presetting. MASTER VOLUME : "---" counterclockwise ( min.) MODE : 6CH STEREO FUNCTION : CD (5) Within 2 minutes after the power on, turn VR101 clockwise ( ) to adjust the TEST POINT voltage to 1.5 mV ± 0.5 mV DC. (6) After 10 minutes from the preset above, turn VR101 to set the voltage to 2.5 mV ± 0.5 mV DC. (7) Adjust the Variable Resistors of other channels in the same way. F Lch VR104 TP104 S Lch S Back ch VR101,TP101 VR106 CP106 C ch VR103,TP103 VR102 S Rch TP102 VR105 TP105 DC Voltmeter F Rch 5 AVR-1505/485 BLOCK DIAGRAM 6 AVR-1505/485 LEVEL DIAGRAMS (1/2) 7 AVR-1505/485 LEVEL DIAGRAMS (2/2) 8 AVR-1505/485 SEMICONDUCTORS Only major semiconductors are shown, general semiconductors etc. are omitted to list. 1. IC's CXP740096 (IC201) PC6 PC7 PA0 PA1 PA2 PA3 PA4 PA5 PA6 PA7 NC VDD VSS PK1/TX PK2/TEX PI1/RMC PI2/NMI PI3/TO0/ADJ PI4/INT1/CS1 PI5/SCK1 100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 PC5 PC4 PC3 PC2 PC1 PC0 PB7/SI2 PB6/SO2 PB5/SCK2 PB4/TO2 PB3 PB2 PB1 PB0 PJ7 PJ6 PJ5 PJ4 PJ3 PJ2 PJ1 PJ0 PD7 PD6 PD5 PD4 PD3 PD2 PD1 PD0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 TOP VIEW 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 PI6/SO1 PI7/SI1 PE0/INT0 PE1/INT2 PE2/PWM0 PE3/PWM1 PE4 PE5 PE6 PE7 PG0/TxD PG1/RxD PG2/EC0 PG3/EC1 PG4/EC2 PG5/INT3 PG6/INT4 PG7/CINT AN0 AN1 AN2 AN3 PF0/AN4 PF1/AN5 PF2/AN6 PF3/AN7 AVDD AVREF AVSS PF4/AN8 CXP740096 Terminal Function Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 Pin Name BD3811K1/3812F_MUTE BD3811K1/3812F_CLK BD3811K1/3812F_DATA CDR/TAPE VCR ERR_MUTE SEL_CLK BSE 89057_EMPHA SW_SUM SHARC_SDIN 89057_SDIN EPROM_RESET 89057_RESET SHARC_CS SHARC_SDOUT 89057_CE 89057/1837_SDOUT 89057/1837_SCLK 1837_RESET REELAY_SURR_B SW_MUTE I/O O O O O O O O O I O I I O O O O O O O O O O BD3811K/BD3812F MUTE CONTROL BD3811K/BD3812F CLOCK BD3811K/BD3812F DATA CDR/TAPE MUTE VCR MUTE ERR MUTE SEL_CLK AC3MUTE MUTE for BITSTREAM LC89057 CONTROL SW SUMMING CONTROL SHARC EX(DSP) DATA INPUT LC89057 CONTROL EPROM RESET LC89057 RESET SHARC EX(DSP) CS SHARC EX(DSP) DATA OUTPUT LC89057 CONTROL CONTROL DATA CONTROL CLOCK CODEC RESET SURROUND BACK RELAY SW MUTE PH7 PH6 PH5 PH4 PH3 PH2 PH1 PH0 PK7/TO1 RST VSS XTAL EXTAL PK6/CS0 PK5/SI0 PK4/SO0 PK3/SCK0 PF7/AN11 PF6/AN10 PF5/AN9 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 Function 9 AVR-1505/485 Pin No. 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 Pin Name RELAY_FRONT_B RELAY_FRONT_A RELAY_SURR RELAY_CNT RELAY_H/P FUNC_UP H/P_DETECT FUNC_DOWN SURR_SB_MUTE CNT_MUTE NC SURR_MUTE NC NC NC FL_DRV_RST RELAY_POWER RESET GND XTAL EXTAL FL_DRV_CE FL_DRV_DATA FL_DRV/2090_CLK 2090_DATA VOL_DOWN VOL_UP SEL_DOWN SEL_UP AVSS VREF AVDD S-VIDEO_DET COPM_DET STEP_OPT SET_OPT GND KEY_IN3 KEY_IN2 KEY_IN1 C-VIDEO_DET PROTECT 89057_INT SHARC_SCLK 1837_CE SHARC_RESET FRONT_MUTE PWR_DOWN NC NC NC VIDEO_MUTE TA1270_TC90A69 DATA TA1270_TC90A69 CLK RDS_DATA I/O O O O O O O I O O O O O O I FRONT B RELAY FRONT A RELAY SURROUND RELAY CENTER RELAY RELAY H/P ENCODER INPUT (FUNCTION) DETECT H/P ENCODER INPUT (FUNCTION) SURROUND BACK MUTE CENTER MUTE SURROUND MUTE LC75721 RESET POWER RELAY RESET GND CRISTAL OSIRATER CONNECTION CRISTAL OSIRATER CONNECTION O O O O I I I I LC75721 CE LC75721 DATA LC75721/BU2090 CLOCK BU2090 DATA ENCODER INPUT (VOLUME) ENCODER INPUT (VOLUME) ENCODER INPUT (SELECTOR) ENCODER INPUT (SELECTOR) AVSS VREF AVDD I I I I I I I I I O O O O I O O O I S Signal Detect input Compornent Signal input AREA SELECT MODEL SELECT GND KEY INPUT KEY INPUT KEY INPUT Composit Signal Detect input PROTECTION LC89057 INT SHARC EX(DSP) SCLK CODEC CE SHARC EX(DSP) RESET FRONT MUTE POWER DOWN DETECT VIDEO MUTE TA1270/TC90A69 DATA TA1270/TC90A69 SCLK RDS(TDA7330) DATA Function 10 AVR-1505/485 Pin No. 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 FLAG3 FLAG2 FLAG1 FLAG0 VIDEO_SEL1 VDEO_SEL2 REMOCON NC GND VSS VDD(BACK UP) NC NC PLL_DATA PLL_CLK PLL_DT_IN TU_MUTE ST TUNED PLL_CE 2090_CLK(VIDEO) 2090_DATA(VIDEO) O O I O I I O O O REMOTE CONTROL SIGNAL INPUT GND VSS VDD FOR BACK UP PLL CONTROL (LC72131) PLL CONTROL (LC72131) PLL CONTROL (LC72131) TUNER MUTE STEREO DETECT TUNE DETECT PLL CONTROL (LC72131) BU2090 CLK BU2090 DATA Pin Name RDS_CLK I/O I I I I I RDS(TDA7330) CLOCK Special flag for ROM update DSP operation check flag NON USE EPROM chip select control for DSP Function 11 AVR-1505/485 ADSP-21266SKSTZ-2B (IC804) 144 1 109 108 PIN 1 INDICATOR TOP VIEW 36 73 37 72 ADSP-21266SKSTZ-2B Terminal Function Pin Name LQFP Pin # Pin Name LQFP Pin # Pin Name LQFP Pin # Pin Name LQFP Pin # VDDINT CLKCFG0 CLKCFG1 BOOTCFG0 BOOTCFG1 GND VDDEXT GND VDDINT GND VDDINT GND VDDINT GND FLAG0 FLAG1 AD7 GND VDDINT GND VDDEXT GND VDDINT AD6 AD5 AD4 VDDINT GND AD3 AD2 VDDEXT GND AD1 AD0 WR VDDINT 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 VDDINT GND RD ALE AD15 AD14 AD13 GND VDDEXT AD12 VDDINT GND AD11 AD10 AD9 AD8 DAI_P1 (SD0A) VDDINT GND DAI_P2 (SD0B) DAI_P3 (SCLK0) GND VDDEXT VDDINT GND DAI_P4 (SFS0) DAI_P5 (SD1A) DAI_P6 (SD1B) DAI_P7 (SCLK1) VDDINT GND VDDINT GND DAI_P8 (SFS1) DAI_P9 (SD2A) VDDINT 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 VDDEXT GND VDDINT GND DAI_P10 (SD2B) DAI_P11 (SD3A) DAI_P12 (SD3B) DAI_P13 (SCLK23) DAI_P14 (SFS23) DAI_P15 (SD4A) VDDINT GND GND DAI_P16 (SD4B) DAI_P17 (SD5A) DAI_P18 (SD5B) DAI_P19 (SCLK45) VDDINT GND GND VDDEXT DAI_P20 (SFS45) GND VDDINT FLAG2 FLAG3 VDDINT GND VDDINT GND VDDINT GND VDDINT GND VDDINT VDDINT 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 GND VDDINT GND VDDINT GND VDDINT GND VDDEXT GND VDDINT GND VDDINT RESET SPIDS GND VDDINT SPICLK MISO MOSI GND VDDINT VDDEXT AVDD AVSS GND CLKOUT EMU TDO TDI TRST TCK TMS GND CLKIN XTAL VDDEXT 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 12 AVR-1505/485 LC89057W (IC807) RXOUT 1 RX0 RX1 RX2 RX3 RX4 RX5/VI RX6/UI 2 3 4 5 8 9 10 C bit, U bit 36 RERR Input Selector DO DI CE CL XMODE DGND DVDD TMCK/PIO0 TBCK/PIO1 TLRCK/PIO2 TDATA/PIO3 TXO/PIOEN 37 38 39 40 41 42 43 44 45 46 47 48 24 23 22 21 20 19 18 17 16 15 14 13 SDIN SLRCK SBCK RDATA RLRCK DVDD DGND RBCK RMCK AGND AVDD LPF Demodulation & Lock Detect Data Selector 21 RDATA 24 SDIN PLL Clock Selector Modulation or Parallel Port I/N 16 17 20 22 23 RMCK RBCK RLRCK SBCK SLRCK LPF 13 TMCK/PIO0 TBCK/PIO1 TLRCK/PIO2 TDATA/PIO3 44 45 46 47 TXO/PIOEN 48 29 XIN 28 XOUT 27 XMCK 34 CKST LC89057W Terminal Function Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 Pin Name RXOUT RX0 RX1 RX2 RX3 DGND DVDD RX4 RX5/VI RX6/UI DVDD DGND LPF AVDD AGND RMCK RBCK DGND DVDD RLRCK RDATA SBCK SLRCK SDIN DGND DVDD XMCK I/O O I I I I -- -- I I I -- -- O -- -- O O/I -- -- O/I O O O I -- -- O Function Input bi-phase select data output terminal TTL compatible digital data input terminal Coaxial compatible amp built-in digital data input terminal TTL compatible digital data input terminal TTL compatible digital data input terminal Digital GND Digital power TTL compatible digital data input terminal TTL compatible digital data/Validity flag input terminal for modulation TTL compatible digital data/User data input terminal for modulation Digital power for PLL Digital GND for PLL PLL loop filter connecting terminal Analog power for PLL Analog GND for PLL RMCK clock output terminal (256fs, 512fs, XIN, VCO) RBCK clock in/output terminal (64fs) Digital GND Digital power RLRCK clock in/output terminal (fs) Serial audio data output terminal SBCK clock output terminal (32fs, 64fs, 128fs) SLRCK clock output terminal (fs/2, fs, 2fs) Serial audio data input terminal Digital GND Digital power Osc. amp output terminal 13 RXOUT 1 RX0 2 RX1 3 RX2 4 RX3 5 DGND 6 DVDD 7 RX4 8 RX5/VI 9 RX6/UI 10 DVDD 11 DGND 12 36 35 34 33 32 31 30 29 28 27 26 25 Microcontroller I/F 37 DO RERR INT CKST AUDIO/VO EMPHA/UO DGND DVDD XIN XOUT XMCK DVDD DGND EMPHA/UO 32 AUDIO/VO 33 INT CL CE DI 35 40 39 38 XMODE 41 TOP VIEW AVR-1505/485 Pin No. 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 Pin Name XOUT XIN DVDD DGND EMPHA/UO AUDIO/VO CKST INT RERR DO DI CE CL XMODE DGND DVDD TMCK/PIO0 TBCK/PIO1 TLRCK/PIO2 TDATA/PIO3 TXO/PIOEN I/O O I -- -- I/O I/O I/O I/O O O I I I I -- -- I/O I/O I/O I/O O/I Function X'tal osc. connecting output terminal X'tal osc. connection, external clock input terminal (24.576MHz or 12.288MHz) Digital power Digital GND Emphasis information/U-data output/Chip address setting terminal Non-PCM detect/V-flag output/ Chip address setting terminal Clock switch transition period output/Demodulation master or slave function switching terminal Interrupt output for µcom (Interrupt factor selectable)/Modulation or general I/O switching terminal PLL lock error, data error flag output µcom I/F, read out data output terminal (3-state) µcom I/F, write data input terminal µcom I/F, chip enable input terminal µcom I/F, clock input terminal System reset input terminal Digital GND Digital power 256fs system clock input for modulation/General I/O in/output terminal 64fs bit clock input for modulation/General I/O in/output terminal fs clock input for modulation/General I/O in/output terminal Serial audio data input for modulation/General I/O in/output terminal Modulation data output/ General I/O enable input terminal * For latch-up countermeasure, perform each power supply ON/OFF in the same timing. BD3811K1 (IC701) AGND10 ROUT32 ROUT31 ROUT22 ROUT21 ROUT12 ROUT11 GOUT2 AGND9 GOUT1 VIN2 VIN1 IN22 IN21 IN12 IN11 80 IN31 IN32 IN41 IN42 IN51 IN52 IN61 IN62 IN71 IN72 IN81 IN82 INDVDSR INDVDSL INDVDC INDVDSW OUT2(+) OUT2(-) OUT1(+) OUT1(-) IN1DSP IN1MIX IN2DSP IN2MIX 1 2 3 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 TNF2 TNF1 BNF11 BNF21 BNF12 BNF22 BBNF2 OUT2 BBNF1 OUT1 AGND8 AGND7 VCC AGND6 VEE AGND5 MUTE CL DA DGND AGND4 GOUTSR VINSR AGND3 TREBLE 4 5 BASS 6 7 8 9 10 11 12 13 14 15 16 17 LOGIC 18 19 20 21 22 23 24 25 INDSPSR 61 60 59 58 57 56 BASS BOOST 55 54 5.1ch Mode SW2 DVD 53 52 51 50 49 48 47 5.1ch Mode SW ...