Pioneer HTP-072 Service Manual page 25

5
No. Symbol
51 SW_SUM
52 HP_RLY
53 D+1.2V_ON
54 HDMI_1V8_ON
55 DC/DC_ON1
56 CODEC_ADR
57 9211_RST
58 9211_SDA
59 9211_SCL
60 DSP_SIMO
61 DSP_SPICLK/B7
62 3V3
63 DSP_RST
64 GND
65 USB5V_DET
66 DSP_SOMI
67 DSP_SPICS
68 DSP_SPIEN
69 HDMI_SEL
70 PROTECT2
71 MAIN_IRQ
72 SUB_ON
73 USB5V_ON
74 HD_MUTE
75 SUB_IRQ
76 CODEC_SCL
77 SUB_RST
78 CODEC_SDA
79 SCDO_MAIN
80 CSCK_MAIN
81 SET OPTION
82 STEP OPTION
83 NC
84 NC
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 D+1.8V_ON
96 GND
97 THRU_LED
98 3V3
99 3V3
100 STBY_RLY
5
6
I/O
I Output for Sub Woofer SUMMING Control (H: SUMMING)
O Headphone audio output control pins at Mute Tr (active at L)
O Control pin DSP IC +1.2V (on: H)
O Control pin HDMI IC +1.8V (on: H)
O Control pin DC/DC IC +3.3V (on: H)
I Format control input 1 for H/W (SPI OR I2C)
O Output to reset PCM9211
I/O Data signal output for PCM9211 (I2C)
O Clock signal output for PCM9211 (I2C)
O Data signal Input for DA808
O Clock signal output for DA808 (SPI)
+3.3V power supply
O Output to reset DA808
Ground
I USB+5 voltage monitor input pin overcurrent protection
I Data signal output for DA808 (SPI)
O Chip select signal output for DA808
I SPI Enable signal input from DA808
O IC signal of the control pins at select HDMI or analog audio
I AMP6 Assy input signal of the RADIATOR THERMAL pin (L = VOLUME DOWN)
O Interrupt signal output pin to SUB UCOM
O Control pin SUB UCOM IC +3.3V REG. IC (on: H)
O Control pin NCP380 FOR USB +5V (on: H)
I Input for HDMI_RX_MUTE condition
I Interrupt signal output pin to MAIN UCOM
O Clock signal output for PCM1681 (I2C)
O Output to reset SUB UCOM
I/O Data signal output for PCM1681 (I2C)
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
Not used
Not used
I AMP6 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
Not used
I Data input for Key1 scan
I Data input for Key3 scan
I Data input for Key2 scan
I Data input for INPUT selector encoder
O Output for chip enable of SC16315
O control pin DSP IC +1.8V (on: H)
Ground
O HDMI LED on/off control pin if Speaker DC protection
+3.3 V Power Supply
+3.3 V Power Supply
O Output to ST-BY Relay ON/OFF (active at H)
HTP-072
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Description
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A
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