Sony ZS-M7 Service Manual page 43

Pin No. Pin name I/O Description
51 JOG0 – Reserved (ground connection).
52 SDA I/O Serial data I/O with EEPROM (IC171).
53 SCL O Serial clock output to EEPROM (IC171).
54 2M/4M – Reserved ("H" level).
55 – Reserved (ground connection).
56 – Reserved (ground connection).
57 RXD (UART) O Communication with master control IC (IC801) and UART receive output.
58 TXD (UART) I Communication with master control IC (IC801) and UART send input.
59 RTS (T) I UART send request input from master control IC (IC801).
60 CTS (R) O UART send request output to master control IC (IC801).
61 AUBIT0 – Reserved ("H" level).
62 AUBIT1 – Reserved (ground connection).
63 CLKSET0 – Reserved (ground connection).
64 CLKSET1 – Reserved (ground connection).
65 GND – Power supply pin (ground).
66 +3.3V – power supply pin (VCC).
67 SCLK O Serial clock output to digital signal processor IC (IC201).
68 SWDT O Write data signal output to digital signal processor IC (IC121).
69 SRDT I Read data signal input from digital signal processor IC (IC121).
70 EMP O Delmphasis ON/OFF control signal output.
71 SCK1 – not used (OPEN).
72 SOUT1 – not used (OPEN).
73 SIN1 – not used (OPEN).
74 CSB – Reserved (VCC connection).
75 LDON O Laser ON/OFF control signal output.
76 PIT/GRV – not used (OPEN).
77 FOK I Focus OK signal input from digital signal processor IC (IC121).
78 – not used (OPEN).
79 LOCK – not used (OPEN).
80 WRPWR O Laser power switch signal output to digital signal processor IC (IC121).
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81 DIG-RST O Reset signal output.
82 – not used (OPEN).
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83 DA-RST O Reset signal output to D/A and A/D converters "L": reset.
84 DSEL-A – not used (OPEN).
85 DSEL-B – not used (OPEN).
86 MOD O MD module ON/OFF control signal output.
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87 REC/PB – not used (OPEN).
88 – not used (OPEN).
89 SCTX O Record data output authorization signal output.
90 XLATCH O Serial latch signal output to digital signal processor IC (IC121).
91 – not used (OPEN).
92 – not used (OPEN).
93 AMUTE – not used (OPEN).
94 LD OUT O Loading motor F control signal output.
95 LD IN O Loading motor F control signal output.
96 LIMIT IN I Detection input from limit switch (S681).
97 PROTECT I Record tab detection input from disk write-protect switch (S683).
98 REFLECT I Disk reflection rate detection input from reflect switch (S682).
99 GND – Power supply terminal (ground).
100 +3.3V – Power supply terminal (VCC).
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MAIN BOARD (2/2) IC801 SYSYTEM CONTROL (CXP84648-037Q)
Pin No. Pin name I/O Description
1 PACON O Power amplifier control output.
2 MEGABASE O Mega-bus control output.
3 RECH O A/D converter select output.
4 STXD O Communication with MD and UART send output.
5 SRXD I Communication with MD and UART receive input.
6 SCTS I UART send request input from MD.
7 SRTS O UART send request output to MD.
8 MDH O D/A converter select output.
9 PDOWN O Notification of power cutoff to MD.
10 MDRST O Reset MD microcomputer.
11 PCON O Power supply control output.
12 OPEN O CD tray control output H: Open.
13 CLOSE O CD tray control output H: Close.
14 XRST O CD system reset output.
15 MDATA O CD serial data output.
16 SENSE1 I CD sense input 1.
17 MCLK O CD serial clock output.
18 XLT O CD system latch output.
19 – not used.
20 SENCE2 I CD sense input 1.
21 TEST I Test mode input. "L": Reset
22 RSMK1 I Radio-directed setting 1 (+5V connection).
23 RSMK2 I Radio-directed setting 2 (ground connection).
24 RSMK3 I Radio-directed setting 3 (ground connection).
25 ACCHK I AC power supply detection input. L: AC H: No AC
26 LEDMD O LED on during MD.
27 LEDCD O LED on during CD.
28 LEDRADIO O LED on during radio.
29 SHIFT O Shift system clock.
30 RST I Hardware reset pin. "L": Reset
31 EXTAL I System clock (5MHz) oscillation input.
32 XTAL O System clock (5MHz) oscillation output.
33 VSS Ground.
34 TX O Time clock (32.768kHz) oscillation output.
35 TEX I Time clock (32.768kHz) oscillation input.
36 AVSS Ground for A/D converter.
37 AVREF I A/D converter reference voltage input.
38 KEY1 I Key input (12 stage input) 1.
39 KEY2 I Key input (12 stage input) 2.
40 KEY3 I Key input (12 stage input) 3.
41 – not used (OPEN).
42 – not used (OPEN).
43 – not used (OPEN).
44 REGCHK I Regulator voltage check input.
45 OPN/CLS I CD tray status detection input.
46 FLRST O FL microcomputer reset.
47 FLCS2 O FL name communication and chip select output.
48 FLSCK2 O FL name communication and clock output.
49 FLDI2 I FL name communication and data input.
50 FLDO2 O FL name communication and data output.
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Pin No. Pin name I/O Description
51 FLSCK1 O Communication with FL microcomputer and clock output.
52 FLCS1 O FL microcomputer chip select output.
53 FLDT1 O Communication with FL microcomputer and data output.
54 JOG1 I JOG dial rotation detection 1 input.
55 JOG2 I JOG dial rotation detection 2 input.
56 RMC I remote control signal input.
57 RDI I Radio PLL data input.
58 RDO O Radio PLL data output.
59 RSCK O Radio PLL clock output.
60 RCE O Radio PLL chip enable output.
61 SCOR I CD score input.
62 FOK I CDFOK input.
63 – not used (OPEN).
64 EPSD I/O EEPROM data I/O.
65 SQCK O CDSUBQ clock output.
66 SUBQ I CDSUBQ data input.
67 EPSK O EEPROM clock output.
68 ST I Radio stereo detection. "L": Mono
69 9/10 I Radio AM station interval switch. "L": Set to 9kHz
70 RMUTE O Radio mute output.
71 EPCS O EEPROM chip select output.
72 VDD – Power supply terminal (+5V).
73 NC – VDD connection.
74 MD – not used (OPEN).
75 CD O CD function output.
76 RADIO O Radio function output.
77 XLINE O Line function output.
78 VOCLK O Serial data output for volume.
79 AMUTE O Audio mute output.
80 VOLDATA O Serial clock output for volume.
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