JVC KD-R491 Schematic Diagrams page 26

2.3 Microcomputer's terminal description
IC701 (R5S726A0D216FP) on MAIN PWB ASSY
Pin No. Pin Name
1 LCD_INH
2 DAB_COM_ON
2 NC
3 PVcc
4 NRST
5 Vss
6 PANEL_PON
7 DC_ERR2
8 PWIC_MUTE
9 LCD_CE
10 Vss
11 LCD_CLK
12 Vcc
13 RGB_CLK
13 PCB_TEST_MODE_RX
14 LCD_DATA_SYS
14 LCD/RGB_DATA_SYS
14 PCB_TEST_MODE_TX
15 USB_PON
16 PVcc
17 NC
18 Vss
19 NC
20 Vcc
21 PWIC_STBY
22 SXM_DATA_SXM
22 NC
23 SXM_DATA_SYS
23 NC
24 DEBUG_1A
24 DAB_CLK_SYS
24 HD_CLK_SYS
25 DEBUG_1B
25 DAB_CS_SYS
25 HD_CS_SYS
26 DEBUG_1C
26 DAB_DATA__SYS
26 HD_DATA_SYS
27 DAB_DATA_DAB
27 HD_DATA_HD
28 PVcc
29 FREQ_SEL
30 Vss
31 ENC2
I/O Application
O Display On/Off Control
O Enable DAB micon (For DAB model)
O No Use (for non DAB model)
- Power supply for I/O circuits
O LSI Reset Signal (L= Reset)
- GND
O Supply Control to Panel
I Detect DC Clip (for ST Power Amp IC)
O Muting Output for Power Amp IC
O LCD Driver IC Chip Enable Output (for LCD Model)
- GND
O LCD CLK Output
- Power supply
O I2C Clock Output for RGB Driver (For RGB Model)
I PCB Test Mode RX
O LCD DATA Output (for LCD Model)
O LCD and RGB DATA Output (for RGB Model)
O PCB Test Mode TX
O Enable Output for High Side Switch
- Power supply for I/O circuits
O No Use (for non BT model)
- GND
O No Use (for non BT model)
- Power supply
O Output to Power On Power Amp IC
I SXM Data Input (For SXM model only)
O No Use (for non SXM model)
O SXM Data Output (For SXM model only)
O No Use (for non SXM model)
O For Debug
O Clock to DAB (for DAB model only)
O Clock to HD Decoder (for HD model only)
O For Debug
O Command Request from main micon to DAB micon (for
DAB model)
O Command Request from SYS-com to HD (for HD mod-
el)
O For Debug
O DAB Data Output (for DAB model only)
O HD Data Output (for DAB model only)
I DAB Data Input (for DAB model only)
I HD Data Input (for HD model only)
- Power supply for I/O circuits
O Frequency Select
- GND
I Volume Encoder Pulse Input 2
(No.MA665<Rev.001>)7/33
Processing/Operation/Descrip-
tion
L: Display OFF / H: Display ON
H: ON / L: OFF
L: Reset ON / H: Reset OFF
L: ON / H: OFF
L: DC Error ON / H: DC Error OFF
L: Mute ON / H: Mute OFF
L: HisideSW OFF / H: HisideSW
ON
L: Standby / H: Play
Pulse: Power On / L: Power Off