Read Sony STR-DA90ESG Service Manual online
– 9 –
Pin No.
Pin Name
I/O
Function
1
MBUS (VZ)
I
Not used (fixed at “L”)
2
MBUS (MON)
I
Not used (fixed at “L”)
3
MBUS (STU)
O
Not used (open)
4
LED-V3
O
LED drive signal output terminal “H”: LED on (for function VIDEO 3 indicator)
5
LED-V2
O
LED drive signal output terminal “H”: LED on (for function VIDEO 2 indicator)
6
LED-V1
O
LED drive signal output terminal “H”: LED on (for function VIDEO 1 indicator)
7
STANDBY
O
LED drive signal output terminal “H”: LED on Not used (open)
8
DPC (SURR)
O
LED drive signal output terminal “H”: LED on (for SUR indicator)
9
DPC (EQ)
O
LED drive signal output terminal “H”: LED on (for EQ indicator)
10
DPC (INDEX)
O
LED drive signal output terminal “H”: LED on (for INDEX indicator)
11
DVSS
—
Ground terminal
12
LED-CE
O
LED drive signal output terminal “H”: LED on (for function CD indicator)
13
LED-DAT/MD
O
LED drive signal output terminal “H”: LED on (for function DAT/MD indicator)
14
LED-TAPE
O
LED drive signal output terminal “H”: LED on (for function TAPE indicator)
15
LED-TV
O
LED drive signal output terminal “H”: LED on (for function TV/DBS indicator)
16
LED-LD
O
LED drive signal output terminal “H”: LED on (for function LD/DVD indicator)
17
LED-V3
O
LED drive signal output terminal “H”: LED on (for function VIDEO 3 indicator)
18
LED-V2
O
LED drive signal output terminal “H”: LED on (for function VIDEO 2 indicator)
19
LED-V1
O
LED drive signal output terminal “H”: LED on (for function VIDEO 1 indicator)
20
RX (SIN)
I
Receive data input from the on screen display controller (IC809)
21
TX (SOUT)
O
Transmit data output to the on screen display controller (IC809)
22
BUSY
I
Busy signal input from the on screen display controller (IC809)
23
FL CLEAR
O
Display clear signal output to the fluorescent indicator tube driver (IC101, 102)
24
FL DATA
O
Serial data output to the fluorescent indicator tube driver (IC102)
25
FL CLK
O
Serial data transfer clock signal output to the fluorescent indicator tube driver (IC101, 102)
26
LAT (OSD)
O
Serial data latch pulse signal output to the fluorescent indicator tube driver (IC101, 102)
27
SIRCS1
I
Sircs signal input from the remote control receiver (IC104)
28
AVCC —
Power supply terminal (+5V)
29
AVR+
I
Reference voltage input terminal (+5V)
30
AVR–
I
Reference voltage input terminal (+0V)
31
GND
—
Ground terminal
32
AD KEY IN 1
I
Key input terminal (A/D input)
S132 to 134 (INPUT MODE, DIRECT PASS, BASS BOOST keys)
S132 to 134 (INPUT MODE, DIRECT PASS, BASS BOOST keys)
33
AD KEY IN 2
I
Key input terminal (A/D input)
S116 to 119 (FM/AM, SHIFT, PRESET TUNING –/+ keys)
S116 to 119 (FM/AM, SHIFT, PRESET TUNING –/+ keys)
34
DVSS
—
Ground terminal
35
AD KEY IN 3
I
Key input terminal (A/D input) S109 to 110 (EQUALIZER BAND, TUNING +/–, FM
MODE, MEMORY, DISPLAY keys)
MODE, MEMORY, DISPLAY keys)
36
AD KEY IN 4
I
Key input terminal (A/D input) S101 to 108 (EQUALIZER CH, DPC MODE,
cursor
cursor
←
/
↓
/
↑
/
→
, SET UP, OPEN/CLOSE keys)
37
AD KEY IN 5
I
Key input terminal (A/D input)
S129 to 131 (MODE, SOUND FIELD ON/OFF, GENRE keys)
S129 to 131 (MODE, SOUND FIELD ON/OFF, GENRE keys)
38
AD VERSION
I
Setting terminal for the destination (A/D input)
39
VOL-UP
I
Motor drive signal input for the master volume
40
VOL-DOWN
I
Motor drive signal input for the master volume
41
MODE0
I
Mode selection terminal (fixed at “H”)
DISPLAY BOARD IC105 MB90673PF-G-206-BND
(FLUORESCENT INDICATOR TUBE DRIVE CONTROLLER, KEY CONTROL)
(FLUORESCENT INDICATOR TUBE DRIVE CONTROLLER, KEY CONTROL)
SECTION 4
DIAGRAMS
4-1.
IC PIN FUNCTION DESCRIPTION
Click on the first or last page to see other STR-DA90ESG service manuals if exist.