Panel Board - Sony HCD-V4800 Service Manual

PANEL BOARD IC601 TMP87CH74-6566
(FLUORESCENT INDICATOR TUBE DRIVER, KEY CONTROL, LED DRIVER)
Pin No. Pin Name
1 LED3
2 LED4
3 LED5
4 LED6
5 LED7
6 LED8
7 VSS
8 X-OUT
9 X-IN
10 RESET
11 LED9
12 LED10
13 TEST
14 LED11
15 LED12
16 LED13
17 LED14
18 LED15
19 LED16
20 VOL-A
21 DOOR SW
22 JOG-A
23 CLOCK
24 DATA
25 LED SELECT
26 MODEL
27 KEY-1
28 KEY-2
29 KEY-3
30 KEY-4
31 LED17
32 L+R
I/O
O
LED drive signal output terminal (SUPER WOOFER, P (CD))
O
LED drive signal output terminal (· (CD))
O
LED drive signal output terminal (deck-B ª / ·)
O
LED drive signal output terminal (P / r REC (TAPE))
O
LED drive signal output terminal (EFFECT, ENTER)
O
LED drive signal output terminal (FILE 1/2)
—
Ground terminal
O
System clock output terminal (8 MHz)
I System clock input terminal (8 MHz)
System reset signal input from the reset signal generator (IC302)
I
hundreds msec. after the power supply rises, "L" is input, then it changes to "H"
O
LED drive signal output terminal Not used (connected to ground)
O
LED drive signal output terminal Not used (connected to ground)
I
Connected to ground
O
LED drive signal output terminal (FILE 3/4)
O
LED drive signal output terminal (FILE 5, P FILE)
O LED drive signal output terminal (MENU 2/1)
O
LED drive signal output terminal (KEY CONTROL)
O LED drive signal output terminal (decck-A · / ª)
O
LED drive signal output terminal (CD NON-STOP, VCD)
I Rotary encoder pulse input from the S701 (VOLUME)
I
CD door switch (S691 (6 OPEN)) input terminal
I Jog dial pulse input from the S711 (≠ AMS ±)
Communication data reading clock signal input or transfer clock signal output with the master
I/O
controller (IC301) and IIC interface controller (IC901)
Communication data bus with the master controller (IC301) and IIC interface controller
I/O
(IC901)
O
LED selection signal output terminal
I
Destination setting terminal
Key input terminal (A/D input) (S601 to 608, 651 to 659)
ENTER/NEXT, TUNER MEMORY, TUNING MODE, TUNER/BAND, TUNING +/–,
I
STEREO/MONO, FUNCTION, deck-B (· / ª / ) / 0 / p), P , r REC,
H SPEED DUB, CD SYNC
Key input terminal (A/D input) (S609 to 615, 676 to 679, 681 to 686)
I GROOVE, GEQ 4 / 9 / ( / $ , SUPER WOOFER, SUPER W MODE, CD (· / p /
P), DISC SKIP, CD ()), REPEAT, PLAY MODE, 1/ALL DISCS, EDIT, CD (0)
Key input terminal (A/D input) (S616 to 618, 641 to 647, 661 to 666, 670, 671)
I GEQ CONTROL, ENTER, EFFECT, deck-A (· / ª / p / 0 / )), DOLBY NR,
DIRECTION, DISC 1 to DISC 5, CD FLASH, PREV, NEXT
Key input terminal (A/D input) (S619 to 626, 628 to 633, 667 to 669)
SPECTRUM ANALYZER, DISPLAY/DEMO, POWER. CLOCK SET, REC, DAILY 1/2,
I
SLEEP, WAVE, KARAOKE PON/MPX, SURROUND, P FILE MEMORY, n, ˜,
CD NON-STOP, CD LOOP, RETURN
O
LED drive signal output terminal (PBC, AUTO PBC)
I
Spectrum analyzer drive signal input terminal (for high frequency)
Function
– 26 –
"L": reset For several