Sony RDR-HX680 Service Manual page 58

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5-1. IT CONTROL IC
(IC101:LC87F06J2A-F59P6-E (AV-133/134 BOARD))
Pin No. Pin Name
1
2
3
4 WDT
5 ACDET
6 HSM_TO_T
7
8 RESET
9 TX1
10 TX2
11 GND
12
13
14 VDD1
15 MODEL1
16 MODEL2
17 KEY1
18 KEY2
19 KEY3
20 AGC
21 BATTDET
22 FUNC
TE
L 13942296513
23 SDET3
24 SDET2
25 SDET1
26 AVLOUT
27 SDA
28 SCL
29 XRST
30
31 AFT
32
33 XAMUTE
34 RCSEL1
35 RCSEL2
36
37 DDCSW1
38 DDCSW2
39 GND
40 VDD4
41 FUNC ON
42 SQUEEZE
43 CAPACTIOR
44
www 45 BLAIR
46 P_SAVE
47 XSCMUTE
48 AVLTH
.
49 FLDATA
50 FLSTB
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IC PIN FUNCTION DESCRIPTION
I/O
NC — Not used
NC — Not used
NC — Not used
— Fixed at "H"
I Input of IC's VDD detect signal
I Input of ROM/GIO address signal for IC1001 (RD-066 board)
IR I Input of remote control receive signal
I Input of system reset signal
I Input of sub-clock (32.768KHz)
O Output of sub-clock (32.768KHz)
— Analog GND
CF1 I Input of main-clock (15MHz)
CF2 O Output of main-clock (15MHz)
— Power supply input
— Fixed at "H"
— Fixed at "GND"
I Input of function key signal [1]
I Input of function key signal [2]
I Input of function key signal [3]
I Input of auto gain control signal
— Fixed at "H"
I Input of detection signal for euro-scart
I Input of line3 S-video detection signal
I Input of line 2 S-video detection signal
I Input of line1 S-video detection signal
O Output of n-link switch signal
I/O Input/output of IIC data signal
O Output of IIC clock signal
O Output of system reset signal for EURO MSP
NC — Not used
I Input of tuner AFT control signal
NC — Not used
I Input of audio muting signal
O Output of R/C select signal [1]
O Output of R/C select signal [2]
NC — Not used
O Output of DDC IC switching signal [1]
O Output of DDC IC switching signal [2]
— Analog GND
— Power supply input
O Output of detection signal for euro-scart
O Output of detection signal for euro-scart
I Input of IC's VDD detect signal
NC — Not used
O Output of transmission pulse for G-Link
O Output of power save signal for AV select IC's
x ao
y
O Output of SA mute control signal
O Output of N-link switch drive signal
i
O Output of data signal for FLD drive
O Output of strove signal for FLD driver
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RDR-HX680/HX780/HX785/HX980/HX1080
SECTION 5
8
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3 6 7 1 3
u163
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5-1
2 9 9 4 2 8
Function
1 5 0 5 8 2 9 9 4
m
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9 9
2 8 9 9