Sony STR-DN840 Service Manual

Also see for STR-DN840: Limited warranty Quick setup guide Operating instructions Specifications Operating instructions

STR-DN84063DIGITAL BOARD (5/8) IC2502 ADSST-AVR-3046 (DSP)Pin No. Pin Name I/O Description1 SDDQM O Data mask signal output to the SD-RAM2 MS0 O Memory select signal output to the SD-RAM3 SDCKE O Clock enable signal output to the SD-RAM4 VDD_INT - Power supply terminal (+1.2V) (for core)5 CLK_CFG1 I Clock frequency setting terminal Fixed at “L” in this unit6 ADDR0 O Address signal output to the SD-RAM7 BOOT_CFG0 I Boot mode selection signal input terminal Fixed at “H” in this unit8 VDD_EXT - Power supply terminal (+3.3V) (for I/O)9 to 13 ADDR1 to ADDR5 O Address signal output to the SD-RAM14 BOOT_CFG1 I Serial data input from the main system controller15 GND - Ground terminal16, 17 ADDR6, ADDR7 O Address signal output to the SD-RAM18, 19 NC - Not used20, 21 ADDR8, ADDR9 O Address signal output to the SD-RAM22 CLK_CFG0 I Clock frequency setting terminal Fixed at “L” in this unit23 VDD_INT - Power supply terminal (+1.2V) (for core)24 CLKIN I System clock input terminal (25 MHz)25 XTAL2 O System clock output terminal Not used26 ADDR10 O Address signal output terminal Not used27 SDA10 O Address signal output to the SD-RAM28 VDD_EXT - Power supply terminal (+3.3V) (for I/O)29 VDD_INT - Power supply terminal (+1.2V) (for core)30 ADDR11 O Address signal output to the SD-RAM31 ADDR12 O Address signal output terminal Not used32 ADDR17 O Bank address signal output to the SD-RAM33 ADDR13 O Address signal output terminal Not used34 VDD_INT - Power supply terminal (+1.2V) (for core)35 ADDR18 O Bank address signal output to the SD-RAM36 RESETOUT/RUNRSTIN I/O Reset signal output terminal/Running reset signal input terminal Not used37 VDD_INT - Power supply terminal (+1.2V) (for core)38 MOSI I Serial data input from the main system controller39 MISO O Serial data output to the main system controller40 SPICLK I Serial data transfer clock signal input from the main system controller41 VDD_INT - Power supply terminal (+1.2V) (for core)42 DPI_P05 I Chip select signal input from the main system controller43 DSP_CS I Chip select signal input from the main system controller44 MD - Not used45 VDD_EXT - Power supply terminal (+3.3V) (for I/O)46 NC - Not used47 RESET_MAIN I Reset signal input terminal Not used48 VDD_INT - Power supply terminal (+1.2V) (for core)49 UART_OUT O Serial data output terminal Not used50 UART_IN I Serial data input terminal Not used51 LED O Not used52 to 56 NC - Not used57 VDD_EXT - Power supply terminal (+3.3V) (for I/O)58 to 61 NC - Not used62 VDD_INT - Power supply terminal (+1.2V) (for core)63, 64 NC - Not used65 VDD_INT - Power supply terminal (+1.2V) (for core)66, 67 NC - Not used68 VDD_INT - Power supply terminal (+1.2V) (for core)69 NC - Not used