Read Sony SAVA-29 Service Manual online
— 29 —
3-13. IC PIN FUNCTIONS
• IC501 SYSTEM CONTROL (uPD78043FGF-046-3B9) (DISPLAY BOARD)
Pin No.
1 to7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53 to 70
71
72 to 77
78 to 80
I/O
O
O
O
O
O
O
O
O
O
I
O
O
O
O
I
I
I
I
I
O
O
I
I
I
I
O
O
O
O
O
O
Description
FL grid output signal
Power supply (+5 V)
Power relay control output
Surround IC (LA2787, LV1017) control, chip enable output
CSW channels volume IC (LC75373) control, chip enable output
LR channels volume IC (LC75373) control, chip enable output
Rear volume IC (TC9210) control, latch output
Clock output
Data output
FL power supply switch
Reset input
Not used (Connected to ground)
Not used (Connected to ground)
A/D converter ground (Connected to ground)
LR mute
Center mute
Rear mute
Sub woofer mute
POWER key detection
Key input 1
Key input 0
Auto power signal detection input
A/D converter analog power supply (+5 V)
A/D converter reference voltage
Stop detection
Not used (Not connected)
Ground (Connected to ground)
External crystal oscillator is connected to this terminal
External crystal oscillator is connected to this terminal
Not used (Not connected)
Wireless rear power transmission control output
Sub woofer volume adjustment control output
SAVA-29/59 discrimination input
External/internal center speaker selection control input
Control S (TV) select control input
Not used (Connected to ground)
Not used (Connected to ground)
SIRCS data input
Not used (Connected to ground)
Not used (Connected to ground)
Not used (Connected to ground)
Not used (Connected to ground)
STANDBY LED ON/OFF control output
READY LED ON/OFF control output
OPERATE LED ON/OFF control output
Power supply (+5 V)
FL segment output signal
FL pull down voltage (–35 V)
FL segment output signal
FL grid output signal
Pin Name
7G to 1G
VDD
POWER RY
SUR CE
VOL CSW CE
VOL LR CE
VOL3 LAT
S CLOCK
S DATA
FL SW
RESET
AVSS
LR MUTE
C MUTE
S MUTE
SW MUTE
POWER SW
KEY 1
KEY 0
AUTO SW
AVDD
AVREF
STOP
XT2
VSS
X1
X2
REAR POWER
S/W BOOST
U SET SW
C EXT SW
TV/SW
SIRCS
IC
STANDBY LED
READY LED
OPERATE LED
VDD
S24 to S7
VLOAD
S6 to S1
10G to 8G
• Abbreviation
FL : Fluorescent indicator signal
FL : Fluorescent indicator signal
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