Service manual

78
RX-V665/HTR-6260
RX-V665/HTR-6260
Pin
No.
Port Name
Function
Name
(P.C.B.)
I/O
Detail of Function
Power On
Stby Thrh
Standby
Stby Sleep
MCU Sleep
24
/NMI
P85/NMI
/NMI MCU MCU MCU MCU MCU Unused, pull up to Vcc
25
INT2
P84/INT2
HDMI_MUT IRQ IRQ O O O
HDMI mute input
Act H: Mute
26
INT1
P83/INT1
HDMI_INT IRQ IRQ O O O Interrupt from HDMI RX
27
INT0
P82/INT0
CEC_N_INT IRQ IRQ O O O CEC microprocessor interrupt
28
P81
P81/TA4in/U/INPC15/
OUTC15/CTS5/
RTS5/RTP23
DSP_N_RDY I O O O O DA70Y RDY
P81 DIR_WCK I O O O O CDDA writing DIR_WCK input
29
RXD5
P80/TA4out/U/
ISRXD0/RXD5
DSP_MISO SI O O O O Synchronous data input for DIR, DA70Y, DAC
30
CLK5
P77/TA3in/INPC14/
OUTC14/ISCLK0/
CLK5/RTP22
DSP_SCK SO O O O O Synchronous clock output for DIR, DA70Y, DAC
31
TXD5
P76/TA3out/INPC13/
OUTC13/ISTXD0/
TXD5
DSP_MOSI SO O O O O Synchronous data output for DIR, DA70Y, DAC
32
P75
P75/TA2in/W/
INPC12/OUTC12/
ISRXD1/RTP21
DIR_N_RST O O O O O DIR reset
33
P74
P74/TA2out/W/
INPC11/OUTC11/
ISCLK1/RTP20
DSP_FMT O O O O O
DA70Y full mute output
H: Mute
34 P73 232C_MISO O O O O O
35
P72
P72/TA1out/V/CLK2
SEL_CDDA O O O O O
CDDA writing route select
H: CDDA writing mode, L: Operational mode usually
36
SCL2
P71/TA0in/TB5in/
RXD2/SCL2/STXD2/
INPC17/OUTC17/
OUTC22/ISRXD2/
IEin/RTP03
CEC_SCL SO SO O O O
CEC microprocessor, Tuner, HDMI_EQ (SiI9185A) I2C SCL output
(100 kHz device)
U-com block then +3.3S, 3.3k then pull up
37
SDA2
P70/TA0out/TXD2/
SDA2/SRXD2/
INPC16/OUTC16/
OUTC20/ISTXD2/
IEout/RTP02
CEC_SDA SIO SIO O O O
CEC microprocessor, Tuner, HDMI_EQ (SiI9185A) I2C SDA input
(100 kHz device)
U-com block then +3.3S, 3.3k then pull up
38
TxD1
P67/TXD1/SDA1/
SRXD1
232C_MOSI SO SO SO O O
RS232C data output
Pull up at 100 k-ohms
TxD1 TXD SO E8a, ICP (In-circuit programmer) data output
39
Vcc1
Vcc1
Vcc1 MCU MCU MCU MCU MCU Microprocessor power supply
40
RxD1
P66/RXD1/SCL1/
STXD1
232C_MISO SI SI SI I I
RS232C data input
Pull up at 100 k-ohms
RxD1 RXD SI E8a, ICP (In-circuit programmer) data input
41
Vss
Vss
Vss MCU MCU MCU MCU MCU Microprocessor GND
42
P65
P65/CLK1
232C_RTS SO SO SO O O RS232C RTS output
CLK1 E8a_SCLK SI
E8a, ICP (In-circuit programmer) clock input
Pull up at 100 k-ohms