Sony 1000RF Service Manual - Page 11
Diagrams, 1. Ic Pin Description
UPC - 027242568495
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SECTION 4 DIAGRAMS 4-1. IC PIN DESCRIPTION • IC801 µPD17705GC-547-3B9 (SYSTEM CONTROL) Pin No. Pin Name I/O Pin Description 1 NC - Not used. (Connect to ground in this set.) 2 IN_SW I Disc insertion detection input L: IN_SW 3 D_SW I DOWN switch detection input L: D_SW 4 SELF_SW I Disc self store detection input L: SELF_SW 5 L_SW I Sled limit switch detection input L: L_SW 6 LM_EJ O Loading motor control output (Eject direction) 7 LM_LD O Loading motor control output (Loading direction) 8 RY_ON O Relay control output 9, 10 NC - Not used. (Open) 11 BAND_SW I BAND select input 0: US 12 - 20 NC - Not used. (Open) 21 GND3 - Ground 22 NC - Not used. (Open) 23 ADKI2 I A/D key input 2 24 ADKI1 I A/D key input 1 25 ROTCOM I Rotary commander shift key input 26 NC - Not used. (Open) 27 TEST_SW I Test mode initial setting detection input L: TEST_SW 28, 29 NC - Not used. (Open) 30 VDD2 - Power supply pin (+5 V) 31 FMIN I PLL local oscillator frequency input 32 NC - Not used. (Open) 33 GND2 - Ground 34 NC - Not used. (Open) 35 EO1 O PLL error 1 output 36 TEST0 - Connect to GND line. 37 - 40 NC - Not used. (Open) 41 ACC_IN I Accessory power detection input L: ACC_IN 42 SCOR I SCOR signal detection input 43 MUTE O Mute control output 44 LEVEL D O Level control output 45 NC - Not used. (Open) 46 PH2 I Connect to +5 V line. 47 LEVEL 1 O Volume control output 48, 49 NC O Not used. (Open) 50 EMPH_O O Emphasis control output 51 PW_ON O System power control output 52 LM_ON O Loading motor power control output 53 CD_ON O CD power control output 54 ILLON O Illumination power control output 55 - 57 NC - Not used. (Open) 58 LCD_CE O LCD chip enable output 59 EZ_SEL I Rotary commander shift key input L: EZ_SEL 60 SENS I CD SENS signal detection input 61 FOK I Focus OK signal detection input 62 LD_ON O Laser ON/OFF control output L: LD_ON 63, 64 NC - Not used. (Open) 65 LCD_CLK O LCD serial clock output 66 LCD_DAT O LCD serial data output 67 LCD_INH O LCD inhibition output L: LCD_INH 68 SQCK0 O Sub Q read clock output Pin No. 69 70 71 72 73 74 75 76 77 78 79 80 Pin Name CD_RST SQ_SI CD_SO0 CD_LAT CD_CK0 NC GND1 XOUT XIN BU_IN VDD1 RESET I/O Pin Description O Reset output to CD signal processor IC. I Sub Q data input O CD signal serial data output O CD signal processing data latch output O CD signal processing serial clock output - Not used. (Open) - Ground O ceramic oscillator output (4.5 MHz) I ceramic oscillator input (4.5 MHz) I Backup power detection input - Power supply pin (+5 V) I Reset input L: RESET 11 11