Ic Information - Pioneer VSX-5231 Service Manual

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5.4 IC INFORMATION

A
(M3030RFGPFP_256K)(CPU ASSY: IC203)
MAIN CPU
• Pin Function
No. Symbol
1 DIRECT_SEL
2 CNT_LED
3 3959_RST
4 3959_PWR
5 POWERDOWN
6 NC
B
7 RMC
8 GND
9 CNVSS_UP
10 24C16_SDA
11 24C16_SCL
12 RESET
13 XOUT
14 GND
15 XIN
16 3V3
17 NMI
18 TUNER_INT
C
19 4588_INT
20 WOL_NW
21 NC
22 A_MUTE
23 HP_DET
24 HP_RLY
25 SW_SUM
26 CTL_B
27 NC
28 OSD/FLT_CLK
29 CTL_A
D
30 MUTE_B+_CONT
31 U_TX
32 U_RX
33 BUSY_JTAG
34 SCLK_JTAG/TR_DET'
35 VOL_DATA
36 VOL_CLK
37 STBY_RLY
38 OSD_RST
39 F_RLY
40 TUNER_SCLK
E 41 EPM_UP
42 TUNER_SDIO
43 TUNER_SEN
44 TUNER_RST
45 NC
46 OSD_CE/CE
47 NC
48 S_RLY
49 3959_SDA
50 3959_SCL
F
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I/O
O Not used
O Not used
O MFI IC reset signal
O MFI IC Power control pin
I Power down signal input pin
Not used
I Remote control signal input pin
Ground
I Switches processor mode
I/O Data signal input & output for data backup of main CPU
O Clock signal output for data backup of main CPU
I CPU reset signal input pin (active at L)
O Output for 16 MHz Crystal
Ground
I Input for 16 MHz Crystal
+3.3 V Power Supply
Pull up
I Tuner Interrupt signal input pin
I AK4588 Interrupt signal input pin
I Not used
Not used
O Audio output control pins at Mute Tr (active at L)
I Monitoring the input pin headphone connection
I Headphone audio output control pins at Mute Tr (active at L)
I Output for Sub Woofer SUMMING Control (H: SUMMING)
O IC control signal B output pin for selecting the video input
Not used
O OSD & FL drive IC output pin of the Clock
O IC control signal A output pin for selecting the video input
O Power control pin mute B+
O Output for Upgrade (UART)
I Input for Upgrade (UART)
O BUSY signal output pin
I Serial clock input and Protection pin
O Data signal output for R2A15219 (I2C)
O CLK signal output for R2A15219 (I2C)
O Output to ST-BY Relay ON/OFF (active at H)
O OSD IC Reset signal output pin
O Tr driven control pins at the Front speaker output Relay (active at H)
O Clock signal output for Tuner Pack
I UPGRADE
I/O Data signal input & output for Tuner Pack
O Output for Tuner Pack Serial Enable Input (active at L)
O Output to reset Tuner Pack (active at L)
Not used
O OSD IC enable signal output and UPGRADE pin
Not used
O Tr driven control pins at the Surround speaker output Relay (active at H)
I/O MFI IC DATA signal
I/O MFI IC CLK signal
VSX-523-K
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