Sony CDP-D12, Service Manual

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3-6
CDP-D12
CPU Pin Descroption : IC401
PIN SIGNAL I/O DESCRIPTION
1 LOARDIN O DISC LODING EJECT MOTOR
CONTROL (LOADING)
2 LOADOUT O DISC LODING EJECT MOTOR
CONTROL (EJECT)
3 CD_RST O RESET CD SIGNAL PROCESSOR/
SERVO
4 TSTB O CD TEXT INFORMATION NO STROBE
5 STB O CD STROBE
6 A0 O PARAMETER/COMMAND JUDGEMENT
7 PACK I CD PACK
8 RFOK I CD RF_OK
9 DISCDETECT I SELF SWITCH DETECT
10 DISCSET I D_SWITCH WHEN CD IN/OUTDETECT
12 LOADEND I PH1 SWITCH CHECK
13 DISCIN I PH2 SWITCH CHECK
14 SINGLEFULL I PH3 SWITCH CHECK
15 LIMITSW I LIMIT SWITCH CHECK
16 SPCRST O SHOCK PROOF CONTROLLER RESET
17 SPCLAT O SHOCK PROOF CONTROLLER LATCH
19 232C OUT O UART DATA OUTPUT
20 232C IN I UART DATA INPUT
21 TSCK O CD TEXT INFORMATION CLOCK
22 TDSPSO O CD TEXT INFORMATION SERIAL DATA
24 TDSPSI I CD TEXT INFORMATION SERIAL DATA
26 DISPCLK O FL DISPLAY MODULE CLOCK
27 C — CAPACITANCE
28 DISPDOUT O FL DISPLAY MODULE DATA
29 DISPDIN I FL DISPLAY MODULE DATA
30 DISPLAT O FL DISPLAY MODULE DATA LATCH
34 AVSS — A/D CONVERTER POWER SUPPLY
35 AVRH — A/D CONVERTER EXTERNAL REFERENCE
36 AVRL — A/D CONVERTER EXTERNAL REFERENCE
37 AVSS — A/D CONVERTER POWER SUPPLY
38-40 KEY1-KEY3 I KEY VOLTAGE
47 POWERDOWN I POWER DOWN CHECK
48 ENCODEMAIN I ENDODE
49-51 MD0 - MD2 — SYSTEM MODE SELECT
52 HST — HARDWARE STANDBY
53 X_SBSY I CD SUBCODE SYNC
MB90553APF-G-250-BND
—TOP VIEW—
81
85
90
95
100
50
45
40
35
31
80 75 70 65 60 55 51
1 5
10 15 20 25 30
PIN SIGNAL I/O DESCRIPTION
56 PARA- O PARALLEL PORT NO_DISC
POWEROUT
57 PARA- O PARALLEL PORT PLAY OUTPUT
PLAYOUT
58 PARA- O PARALLEL PORT PAUSE OUTPUT
PAUSEOUT
59 PARA- I PARALLEL PORT PLAY INPUT
PLAYIN
60 PARA- I PARALLEL PORT PAUSE INPUT
PAUSEIN
61 CCL_FS O CLOCK CONTROLLER CLOCK
62 PARA- I PARALLEL PORT STOP
STOPIN
63 PARA- I PARALLEL PORT AMS +
AMSINCIN
64 PARA- I PARALLEL PORT AMS _
AMSDECIN
67 SIRCSSELECT I REMOTE CONTROL/CTRL-S CONVERSION
68 WIREDPORTINI CTRL-S
69 PAUSEOUT O RELAY PAUSE
70 DISPBK O FL DISPLAY MODULE BK DATA
71 ENDOUT O RELAY END
72 PAUSEIN I RELAY PAUSE
73 PLAYIN I RELAY PLAYBACK
74 AMUTE O ANALOG MUTE
75 EEPCS O EEPROM CHIP SELECT
76 ENCODESUB I ENCODER
77 RST — RESET
78 EEPDI I EEPROM DATA
79 EEPDO O EEPROM DATA
80 EEPCLK O EEPROM SERIAL CLOCK
82-83 X0 - X1 — OSCILLATOR
87 IRPORTIN I REMOTE CONTROL
88 SPCCLK O SHOCK PROOF CONTROLLER CLOCK
89 SPCDATAOUT O SHOCK PROOF CONTROLLER DATA
90 SPCDATAIN I SHOCK PROOF CONTROLLER DATA
91 CDMON O CD MECHANISM POWER ON
92 CDON O CD POWER ON
93 DFRST O DIGITAL FILTER RESET
94 DFLAT O DIGITAL FILTER LATCH
95 DFDATA O DIGITAL FILTER DATA
96 DFCLK O DIGITAL FILTER CLOCK
97 PLLDATA O CLOCK CONTROLLER DATA
98 PLLCLEAR O CLOCK CONTROLLER CLEAR
99 PLLCLK O CLOCK CONTROLLER CLOCK
100 PLLLOCK I LOCKING OK/NO JUDGEMENT
23,81 VCC — POWER SUPPLY
11,41, GND — GROUND
81
18,25, NC — NO CONNECTION
31-33,
41,43-46,
54,55,65,
66,85,86
IC