Sony CDP-XB820, Service Manual

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6-1. IC PIN FUNCTION DESCRIPTION
SECTION 6
DIAGRAMS
•
DISP BOARD IC801 CXP82832-009Q (SYSTEM CONTROLLER/FL DRIVER)
Pin No. Pin Name I/O Function
1, 2 13G, 14G O Grid drive signal output to the fluorescent indicator tube (FL801) “H”: goes on
3 NC — Not used (fixed at “H”)
4 +5V — Power supply terminal (+5V)
5 SCOR
I
Subcode sync (S0+S1) detection signal input from the CXD2585Q (IC101) in BD section
“H” active
6, 7 GND — Ground terminal
8 RMIN I Sircs signal input from the remote control receiver (IC802) “L” active
9 GND — Ground terminal
10, 11 OPEN O Not used (open)
12
LDOUT O
Motor control signal (load out direction) output to the loading motor driver (IC302)
“H” active *1
13 LDIN O
Motor control signal (load in direction) output to the loading motor driver (IC302)
“H” active *1
14 SENSE I Internal status monitor input from the CXD2585Q (IC101) in BD section
15 XLT O Serial data latch pulse output to the CXD2585Q (IC101) in BD section “L” active
16 DMUTE O
Digital muting on/off control signal output to the CXD2585Q (IC101) and D/A converter (IC301)
“L”: muting on
17 PRGLT O Serial data latch pulse output to the D/A converter (IC301) “L” active
18 SENSOR IN I Stabilizer detect sensor input terminal (fixed at “L” in this set)
19 BUSOUT O Sircs remote control signal output for the CONTROL A1 “H” active
20 BUSIN I Sircs remote control signal input for the CONTROL A1 “L” active
21 SENSOR SW I Stabilizer detect sensor switch input terminal “H” active Not used (open)
22 CLK O Serial data transfer clock signal output to the CXD2585Q (IC101) in BD section “L” active
23 LDON O Laser on/off control signal output to the CXA2568M (IC103) “H”: laser on
24 DATA O Serial data output to the CXD2585Q (IC101) in BD section
25 SQCK O
Subcode Q data reading clock signal output to the CXD2585Q (IC101) in BD section
“L” active
26 SUBQ I Subcode Q data input from the CXD2585Q (IC101) in BD section
27 +5V — Power supply terminal (+5V)
28 AVREF I Reference voltage (+5V) input terminal (for A/D converter)
29 KEY0 I
Key input terminal (A/D input) S851 to S858 (LANGUAGE, MUSIC SCAN, AUTO SPACE,
PEAK SEARCH, PLAY MODE, REPEAT, FADER, TIME/TEXT keys input)
30 KEY1 I
Key input terminal (A/D input) S801 to S805 and S810 (CLEAR, CHECK, EDIT/TIME FADE,
0
,
)
, PUSH ENTER keys input)
31 KEY2 I
Key input terminal (A/D input)
S806 to S810 (
§
OPEN/CLOSE,
·
,
P
,
p
,
≠
AMS
±
keys input)
32 FILTER.SW I FILTER switch (S860) input terminal (A/D input)
33 ADJ/AFADJ I
Input terminal for the CD test mode setting
“L”: ADJ mode, center voltage: AFADJ mode, normally: “H”
34
LOADSW I Loading in/out detect switch (S152 and S153) input terminal
35
MODEL.SEL1 I Destination setting terminal (fixed at “H”)
*1 Loading motor (M903) control
IN OUT BRAKE RUN IDLE
LDOUT (pin
!™
)
“L” “H” “H” “L”
LDIN (pin
!£
)
“H” “L” “H” “L”
Operation
Terminal