Sharp SD-NX10W, Service Manual

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SD-NX10W
1 P77/AN7 SD_ST_IN Input Tuner tuning and stereo receiver signal detection.
(A/D Input) Not tuned: "H", SD input: "M", ST: "L"
2 P76/AN6 KEY1 Input (A/D Input) A/D KEY input 1.
3 P75/AN5 KEY2 Input (A/D Input) A/D KEY input 2.
4 P74/AN4 KEY3 Input (A/D Input) A/D KEY input 3.
5 P73/AN3 P-DWN Output Vref voltage cut when detecting the power failure at SYS-STOP.
"H"= Normal state, "L"= Power failure
6 P72/AN2 TUNER_SM Input (A/D Input) Tuning level detection. Output: "L"
7 P71/AN1 PROTECT Input (A/D Input) Ignored for 500 msec after detecting error and turning on the power.
Power is turned off when the input voltage is 2.5 V or below.
8 P70/AN0 SPAN Input (A/D Input) Input: "L"
9 PB3 POWER Output Control of connection to or disconnection of the primary side power
supply. "H"= Connection, "L"= Disconnection
10 PB2/DA H.P_SW Input Switch for the headphones connection detection.
"H"= Headphones, "L"= Speaker
11 P57/SRDY3/AN15 MD_DISC_IN Input (A/D Input) Detects the MD disc at the exit section inside the lid.
3.76 V or below= Exists at the exit. Over 3.76 V= Not exist at the exit.
12 P56/SCLK3/AN14 CD_SENS_A Input Clarion mechanism disc optical sensor A.
"H"= Shut out by the disc, "L"= Not shut out
13 P55/SOUT3/AN13 CD_SENS_B Input Clarion mechanism disc optical sensor B.
"H"= Shut out by the disc, "L"= Not shut out
14 P54/SIN3/AN12 CD_SENS_C Input Clarion mechanism disc optical sensor C.
"H"= Shut out by the disc, "L"= Not shut out
15 P53/SRDY2/AN11 MD_LOAD_SW Input MD LOAD SW detection. "L"
→
"H"= DISC IN
16 P52/SCLK2/AN10 MD_ST Output 1. Beginning of the CD track: 20 msec. "H" output
2. MD ON (RESET): 100 msec. "H" output
17 P51/SOUT2/AN9 MD_SERACH Output CD play: "L" (including CUEW/REVIW) Others: "H"
18 P50/SIN2/AN8 MD_RESET Output MD RESET output.
19 P67/SRDY1/CS/SCLK12 MD_D_STB Input MD strobe input.
20 P66/SCLK11 MD_D_SCK Output MD clock output.
21 P65/SOUT1 MD_KDATA Output MD KEY data.
22 P64/SIN1 MD_DATA Input MD data input.
23 P63/CNTR1 CD_BUS3 Input/Output Data input/output terminal for CD interface 3.
"L" output fixed except CD function.
24 P62/CNTR0 CD_BUS2 Input/Output Data input/output terminal for CD interface 2.
"L" output fixed except CD function.
25 P61/PWM CD_BUS1 Input/Output Data input/output terminal for CD interface 1.
"L" output fixed except CD function.
26 P60 CD_BUS0 Input/Output Data input/output terminal for CD interface 0.
"L" output fixed except CD function.
27 P47/T3OUT CD_BUCK Output Clock output terminal for CD interface.
"L" output fixed except CD function.
28 P46/T1OUT CD_CCE Output Chip enable output terminal for CD interface.
"L" output fixed except CD function.
29 P45/INT1/ZCR CD_CHK_SW Input Clarion mechanism disc chucking detection SW.
"L"= Non-chucking, "H"= Chucking completed
30 P44/INT4 D_CONT Input "L" fixed.
31 P43/INT3 IC_CLK Output External control IC related clock.
SANYO C bus, input/output expander.
32 P42/INT2 REMOCON_IN Input Remote control input.
33 P41 IC_DI Output External control IC related DATA output.
SANYO C bus, input/output expander.
34 P40/INT0 SYS_STOP Input Microcomputer backup detection.
"H"= Normal state. "H"
→
"L": Power failure detection
35 RESET RESET Input Microcomputer reset terminal. "L"
→
"H": Microcomputer reset
36 PB1/XCIN IC_CE Output External control IC related chip enable output. SANYO CCB bus
37 PB0/XCOUT IC_DO Input External control IC related DATA output. SANYO CCB bus
Pin
No.
Input/Output Port Name Terminal Name
ICD01 RH-iX0381AWZZ: System Microcomputer (IX0381AW) (1/2)
Remarks