Pioneer VSX-1022-K Service Manual page 48

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• Pin Function
No. Symbol
51 C_RLY
52 F_RLY
53 N_PWR
54 D_PWR
55 H_PWR2
56 H_PWR1
57 MIC_DET
58 4588_PDN
59 4588_SDA
60 4588_SCL
B
61 DSP_SDA
62 VCC2
63 DSP_SCL
64 VSS
65 DSP_RST
66 NC
67 DSP_SDOUT
68 DSP_CS
69 DSP_RDY
70 HDMI_SEL
71 PROTECT2
72 MAIN_IRQ
C
73 SUB_ON
74 SUB_IRQ
75 HD_MUTE
76 SUB_PDN
77 SUB_RST
78 SCDI_MAIN
79 SCDO_MAIN
80 CSCK_MAIN
81 SET OPTION
82 STEP OPTION
83 VIDEO_MUTE
84 OSD/FLT_DATA
D
85 PROTECT1
86 VOL_DN
87 VOL_UP
88 IN_DN
89 NC
90 KEY1
91 KEY3
92 KEY2
93 IN_UP
94 FLT_CE
95 NC
96 GND
97 NC
E
98 VREF
99 AVCC
100 V+5V_DET
F
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I/O
O Tr driven control pins at the Center speaker output Relay.(active at H)
O Tr driven control pins at the Front speaker output Relay. (active at H)
O Control pin digital +3.3 V DC/DC IC (on: H)
O Control pin digital +3.3 V DC/DC IC (on: H)
O Control pin digital +1.2 V DC/DC IC (on: H)
O Control pin HDMI IC +5.0 V REG. IC (on: H)
O Monitoring the input pin microphone connection (detection: L)
O Output for AK4588 power down
O Data signal output for AK4588 (I2C)
O Clock signal output for AK4588 (I2C)
O Data signal output for DA787 (DA789) (I2C)
– +3.3 V power supply
O Clock signal output for DA787 (DA789) (I2C)
– Ground
O Output to reset DA787(DA788)
– Not used
I Data signal Input from DA787 (DA788)
O Output for DA787 (DA788) chip select
I Input for DA787 (DA788) SPI Enable
O IC signal of the control pins at select HDMI or analog audio
I AMP Assy input signal of the RADIATOR THERMAL pin (L= PROTECTION)
O Interrupt Output to SUB UCOM
O Output for SUB UCOM Power ON/OFF cotrol pin
I Interrupt Iuput from SUB UCOM
I Input for HDMI_RX_MUTE condition
O Output for SUB UCOM power down
O Output to reset SUB UCOM
I Data signal input from SUB UCOM
O Data signal output to SUB UCOM
O Clock signal output for SUB UCOM
I Input for Set option
I Input for Step (Group) option
O Output for NJM41050 mute cotrol pin
O OSD & FL drive Ic output pin of the Data
I AMP Assy Protection detection signal input pin (ASO= 0.82 V, DC= 1.39 V)
I Data input for VOLUME encoder (VOLUME DOWN is counterclockwise direction)
I Data input for VOLUME encoder (VOLUME UP is clockwise direction)
I Data input for INPUT selector encoder
I Not used
I Data input for Key1 scan
I Data input for Key3 scan
I Data input for Key2scan
I Data input for INPUT selector encoder
O Output for chip enable of SC16315
O Not used
– Ground
O Not used
– Reference voltage (Connected to +3.3 V)
– +3.3 V power supply
I Output to ST-BY Relay ON/OFF (active at H)
VSX-1022-K
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Description
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