Sony STR-DE225 / STR-DE325 Service Manual ▷ View online
STR-DE225/DE325
— 19 —
— 20 —
3-8. SCHEMATIC DIAGRAM — MAIN SECTION (1/3) —
STR-DE225/DE325
— 21 —
— 22 —
3-9. SCHEMATIC DIAGRAM — MAIN SECTION (2/3) —
STR-DE225/DE325
— 23 —
— 24 —
3-10.
SCHEMATIC DIAGRAM — MAIN SECTION (3/3) —
Pin No.
1
2
3
4
5
6
7
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
I/O
O
O
O
O
O
O
O
—
O
O
O
O
O
I
O
I
I
I
I
—
O
O
O
—
I
I
I
I
—
—
—
—
—
I
O
O
O
O
O
O
Description
Fluorescent indicator tube drive.
Power supply (+5V).
System clock.
System data.
PLL data input from TU001.
Chip enable output.
Chip enable output.
Input for model select.
Protector detect output.
Protector detect input.
System reset terminal.
Auto stop detect input.
Stereo detect input.
Ground.
Speaker relay drive.
Surround Relay.
Power relay drive.
Ground.
A/D signal input terminal.
A/D3 key input terminal.
A/D2 key input terminal.
A/D1 key input terminal.
Power supply (+5V).
Reference voltage (+5V).
Ground.
Not used (Open).
Ground.
System clock (4.19MHz).
System clock (4.19MHz).
Mute drive output for
µ
PD2581V (IC701).
Prologic LED.
CINEMA STUDIO LED.
HALL LED.
Tuner mute drive output.
Pin Name
DIG7
DIG6
DIG5
DIG4
DIG3
DIG2
DIG1
+5V
S. CLK
S. DATA
PLL. DATA
S. CE (LC7288)
S. CE (LV100)
REAR-R
BRIDGE
PROTECT
RESET
AUTO-STOP
STEREO-IN
AVss
SP-RY
SURR-RY
POWER-RY
AVss
SIGNAL
A/D3
A/D2
A/D1
AVDD
AV. REF
GND
NC
Vss
X1
X2
IC. MUTE
PROLOGIC
SIMULATED
HALL
T. MUTE
— 25 —
3-11. IC PIN FUNCTION DESCPIRTION
• IC201 µPD78044FGF-112-3B9
Click on the first or last page to see other STR-DE225 / STR-DE325 service manuals if exist.