Sony CDP-XB920 Service Manual page 29

• IC 801 (SYSTEM CONTROL) CXP82832-009Q
Pin No. Pin Name
1 13G
2 14G
3 NC (+5V)
4 +5 V (PEO/EC1/1NT0)
5 SCOR
6 GND (PE2/1NT2)
7 GND (PE3/1NT3/NM1)
RMIN
8
9 GND (PE5)
10 X (OPEN)
11 X (OPEN)
12 LDOUT
13 LDIN
14 SENS
15 XLT
16 D-MUTE
17 PGML
SENSOR IN
18
19 BUSOUT
20 BUSIN
21 SENSOR SW
22 CLK
23 LDIN
24 DATA
25 SQCK
26 SUBQ
27 +5V
28 AVREF
29 Key 0
30 Key 1
Key 2
31
32 FILTER SW
33 ADJ/AFADJ
34 LOADSW
35 MODEL SEL1
36 MODEL SEL2
37 AVSS
38 RST
39 EXTAL
40 EXTAL
VSS
41
42 TX
43 TEX
44 VDD (+5V)
45 VFDP (-30V)
46 XSEL
47 REINIT
48 REGF
49 A-MUTE
50 NC
I/O
O Fluorescent display tube grid 13 output
O Fluorescent display tube grid 14 output
— Not used. Connected to 5V
— Not used. Connected to 5V
I Signal processing IC data sync input
— Not used. Connected to GND
— Not used. Connected to GND
I Remote control input
— Not used. Connected to GND
— Not used. Open
— Not used. Open
O Loading OUT direction output
O Loading IN direction output
I Signal processing IC SENSE input
O Signal processing IC command latch output
O Signal processing IC mute output
O D/F IC command latch output
I Stabilizer detect sensor input
O Control A1 output
I Control A1 input
I stabilizer detect sensor switch
O Signal processing IC command clock output
O Laser diode ON/OFF switching output
I Signal processing IC data input
O Signal processing IC SUBQ read clock output
I Signal processing IC SUBQ input
— Terminal through 5V
I AD converter reference voltage input
I Key input
I Key input
I Key input
I D/F switching rotary switch input
O Normal/ADJ/AFADJ mode switching
I Input of IN switch and OUT switch
O MODEL switching terminal
O Model selector terminal
I A/D converter GND input
I Microprocessor reset input
— 8 MHz X'tal connection terminal
— 8 MHz X'tal connection terminal
— GND
— Not used. Open
— Not used. Connected to GND
— 5V supply terminal
— Voltage supply terminal for option pulldown FDP
— Not used. Open
— Not used. Open
O RF amplifier, laser power hold output
— Not used. Open
— Not used. Open
— 41 —
Description
(LL: XE520 LH: XB720 HL: XB820 HH: XB920)
(LL: XE520 LH: XB720 HL: XB820 HH: XB920)