Sony HCD-XG500 Service Manual - Page 53

HCD-XG60/XG500 • PANEL FL BOARD IC601 TMP88CP76F-1B71 (FLUORESCENT INDICATOR TUBE DRIVER, KEY CONTROL) Pin No. 1 Pin Name SIRCS 2 KEY POWER SAVE/DEMO 3 LED SCK 4 KEY POWER ON/OFF 5 LED DAT 6 LED LATCH 7 LED SEL 8 WAKE UP 9 VOL A 10 VOL B 11 KEY 0 I/O Description I Remote control signal input from the remote control receiver (IC702) Power save/demonstration switch (S609 POWER SAVE/DEMO (STANDBY)) input terminal I "L" is input when key pressing Remote control signal input from the remote control receiver (IC702) O Serial data transfer clock signal output to the LED driver (IC701) I Power on/off switch (S608 I/1) input terminal "L" is input when key pressing O Serial data output to the LED driver (IC701) O Serial data latch pulse signal output to the LED driver (IC701) O LED selection signal output O Wakeup control signal output to the system controller (IC501) "L" active I Jog dial pulse input from the rotary encoder (S736 VOLUME) (A phase input) I Jog dial pulse input from the rotary encoder (S736 VOLUME) (B phase input) Key input terminal (A/D input) S601 to S607, S727 to S732 (DISPLAY, SPECTRUM I ANALYZER, TIMER SELECT, SLEEP, c/CLOCK SET, GAME, FUNCTION, ROCK, MOVIE, REGGAE, MIC GUITAR/KARAOKE, GUITAR DISTORTION, PTY) keys input (S732 PTY key: used for the AEP and UK models) 12 KEY 1 I Key input terminal (A/D input) S621 to S627, S743 to S750 (H, h, x, . AMS > m/M, DOLBY NR, DIRECTION, FLASH, EDIT, NON-STOP, DISC1/2/3/4/5) keys input Key input terminal (A/D input) 13 KEY 2 I S615 to S619, S716 to S726 (h, H, x, . AMS > m/M, GUITAR, JAZZ, SAMBA, DANCE, TANGO, SALSA, GAME, b, v, V, B) keys input Key input terminal (A/D input) 14 KEY 3 I S701 to S710, S712 to S715, S741 (TUNER MEMORY, ENTER/TEXT, -, TUNER/BAND, +, STEREO/MONO, TUNING MODE, ENTER, P.FILE, FLAT, SURROUND, GROOVE, SUPER WOOFER, SUPER WOOFER MODE, LOOP) keys input 15 KEY 4 I Key input terminal (A/D input) S611 to S614, S751 to S757 (X, z REC, H SPEED DUB, CD SYNC, HX, x, m, M, DISC SKIP, REPEAT, PLAY MODE) keys input 16 GUITAR DISTORTION O Distortion on/off control signal output 17 BPF 0 I Spectrum analyzer drive (super low frequency) signal input from the spectrum analyzer bandpass filter (IC602) (for 40 Hz) 18 BPF 1 I Spectrum analyzer drive (low frequency) signal input from the spectrum analyzer band-pass filter (IC602) (for 100 Hz) 19 BPF 2 I Spectrum analyzer drive (low and middle frequency) signal input from the spectrum analyzer band-pass filter (IC602) (for 400 Hz) 20 BPF 3 I Spectrum analyzer drive (middle and high frequency) signal input from the spectrum analyzer band-pass filter (IC602) (for 2 kHz) 21 BPF 4 I Spectrum analyzer drive (high frequency) signal input from the spectrum analyzer band-pass filter (IC602) (for 6 kHz) 22 ALL BAND I Spectrum analyzer drive signal input from the spectrum analyzer band-pass filter (IC602) (for VACS, non-stop signal) 23 VSS - Ground terminal 24 VASS - Ground terminal (for A/D conversion) 25 VAREF I Reference voltage (+5V) input terminal (for A/D conversion) 26 27, 28 VDD GR-16, GR-15 - Power supply terminal (+5V) O Grid drive signal output to the fluorescent indicator tube (FL601) 29 to 40 GR-14 to GR-3 O Grid drive signal output to the fluorescent indicator tube (FL601) 41 VDD VFT - Power supply terminal (+5V) 42 GR-2 O Grid drive signal output to the fluorescent indicator tube (FL601) 53