Schematic Diagram; Main Pcb Assy (1/7) - Pioneer X-HM20-K Service Manual

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10. SCHEMATIC DIAGRAM

10.1 MAIN PCB ASSY (1/7)

A
A
1/7
MAIN PCB ASSY
(X-HM20: 92L36100201011)
(X-HM10: 92L36100101011)
USB_ID H for slave mode,L for Host mode
C78
NA
C80
NA
C81 NA
C82 NA
B
C77 1nF
C
VDD_3V3
VDD_1V8
D
+3V3
E
LOW_VOLTAGE_DET
+3V3
3906
Q9
4K7 R58
RESET
F
A
1/7
24
1
2
1.8v LDO 250uA(output)500uA(input) at 32KHz with SD_clk 32KHz output
1.
VDD_3v3 1.5mA at 32KHz
2.
SE_CFLG/DVD_TRIN
ADC_DATA
GPIO_SDA
GPIO_SCL
R/W
A4
A5
A6
A7
A8
A9
SPI_FLASH_D0
SPI_FLASH_D1
SPI_FLASH_CS
SPI_FLASH_CLK
SPI_FLASH_D2
SPI_FLASH_D3
SD_CLK
SD_UDQM
A3
A2
A1
A0
VDD_3V3
A10
A13
SDRAM_CS
SD_RAS
A18
SD_CAS
A17
R140
NA
R141
0R
R50
10K
Q4
delay 180ms
3904
1,0.22uF 16ms
2,1uF 56ms
X-HM20-K
2
3
20pF
C29
32.768KHz
20pF
C30
C28 22pF
C27 22pF
1
PDVDD
2
S(D)RAM_WE/GPIO1[15]
3
A4/GPIO1[21]
4
A5/GPIO1[22]
5
A6/GPIO1[23]
6
A7/GPIO1[24]
7
A8/GPIO1[25]
8
A9/GPIO1[26]
9
A21/SPI_DATA0
10
A22/SPI_DATA1
11
A19/SPI_CS
12
A20/SPI_CLK
13
PDVSS
14
PDVDD
15
A23/SPI_DATA2
16
A24/SPI_DATA3
17
A11/GPIO1[28]
18
A12/GPIO1[29]
19
SDRAM_CLK
20
PVDD_1V8
21
A16/SDRAM_UDQM/GPIO2[1]
22
A3/GPIO1[20]
23
A2/GPIO1[19]
24
A1/GPIO1[18]
25
A0/GPIO1[17]
26
PDVDD
27
A10/GPIO1[27]
28
A14/SDRAM_BANK1/GPIO1[31]
29
A13/SDRAM_BANK0/GPIO1[30]
30
SDRAM_CS/GPIO1[13]
31
A18/SDRAM_RAS/GPIO2[3]
32
A17/SDRAM_CAS/GPIO2[2]
SD_LDQ M A15
UART_TX
UART_RX
3
4
121
FB7
USB5.1V
IC1
OPTEK_OTK5256
4
NC
FB5
3906
Q1
R16 4
C34 1uF
C33 104P
C35
104P
GPIO0[30]/
GPIO0[29
GPIO0[27
GPIO0[26
GP
GPIO0[2
GPIO0[2
GPIO0[20
GPIO0[23
GPIO0
GPIO0
GPIO
GPIO0[1
GPIO
GPIO0
GPIO0
GP
GPIO
GPIO0
GPIO0
GPIO
GPIO
GP
GP
GP
GP
GP
GP