Sony STR-DE185 Service Manual ▷ View online
7
STR-DE185
2-2. FRONT PANEL SECTION
2-3. BACK PANEL
6
front panel section
4
two screws
(BVTP3 x 8)
(BVTP3 x 8)
1
CN4
2
CN5
3
CNP801
5
four screws
(BVTP3 x 8)
(BVTP3 x 8)
1
CN3
2
CNP901
3
CNP907
4
three screws
(BVTP3 x 8)
(BVTP3 x 8)
5
two screws
(BVTP3 x 8)
(BVTP3 x 8)
6
two screws
(BVTP3 x 8)
(BVTP3 x 8)
7
screw
(BVTP3 x 8)
8
screw
(BVTP3 x 8)
9
back panel (DE1)
8
STR-DE185
2-4. MAIN BOARD
4
two screws
(BVTP3 x 8)
(BVTP3 x 8)
5
screw
(BVTP3 x 8)
(BVTP3 x 8)
8
MAIN board
6
screw
(BVTP3 x 8)
(BVTP3 x 8)
7
3
two screws
(BVTP3 x 8)
(BVTP3 x 8)
1
CNP904
2
CNP905
9
STR-DE185
SECTION 3
TEST MODE
Fluorescent Indicator Tube Test Mode
All fluorescent segments are tested. When this test is activated, all
segments turn on at the same time, then each segment turns on one
after another.
All fluorescent segments are tested. When this test is activated, all
segments turn on at the same time, then each segment turns on one
after another.
Procedure:
1. While pressing the five function buttons of [VIDEO 1], [VIDEO 2],
1. While pressing the five function buttons of [VIDEO 1], [VIDEO 2],
[MD/TAPE], [CD] and [TUNER] simultaneously, press the
?/1
button to turn the power ON.
2. The FL tube will illuminate in half light on. The following dis-
play will be repeated whenever the five function buttons are
pressed.
pressed.
• Operation of function buttons
3. Press any button other than the function buttons to release the
check mode.
AUTO-BETICAL Check Mode (AEP, UK models)
To auto-scanning and memories of RDS station.
To auto-scanning and memories of RDS station.
Procedure:
1. While pressing the [MEMORY/ENTER] button, press the
1. While pressing the [MEMORY/ENTER] button, press the
?/1
button to turn the power ON.
2. The message “AUTO-BETICAL SELECT” are scrolled.
AM Tuning Interval Selection Mode (US model)
Either 9 kHz step or 10 kHz step can be selected for the AM tuning
interval.
Either 9 kHz step or 10 kHz step can be selected for the AM tuning
interval.
Procedure:
1. While pressing the [TUNING/CHAR +] button, press the
1. While pressing the [TUNING/CHAR +] button, press the
?/1
button to turn the power ON.
2. Either the message “9k STEP” or “10k STEP” appears.
3. Select the desired step.
3. Select the desired step.
Software Version Display Mode
The software version is displayed.
The software version is displayed.
Procedure:
1. While pressing the two buttons of [SPEAKERS B] and [VIDEO 1]
1. While pressing the two buttons of [SPEAKERS B] and [VIDEO 1]
simultaneously, press the
?/1
button to turn the power ON.
2. The software version is displayed.
all light on half light on 1 half light on 2 all light off
ex.)
US model
: U
*.**
AEP, UK model : CE
*
.
**
Area
Shift version
10
STR-DE185
SECTION 4
DIAGRAMS
1 to 7
DIG7 to 1
O
Digit drive signal output to the fluorescent indicator tube (FL201).
8
+5V
—
Power supply pin (+5 V)
9
CL
O
Serial clock signal output to FM/AM tuner pack.
10
DO
O
Serial data signal output to FM/AM tuner pack.
11
DI
I
Serial data signal input from FM/AM tuner pack.
12
CE
O
Serial chip enable signal output to FM/AM tuner pack.
13
VOL DATA
O
Serial data signal output to sound control IC.
14
VOL CE
O
Serial clock signal output to sound control IC.
15
RDS DATA
I
RDS data signal input from FM/AM tuner pack. (AEP, UK model only)
16
PROTECTOR
I
Overload detection signal input
17
RESET
I
Reset signal input
18
TUNED
I
TUNED indicator detection signal input from FM/AM tuner pack.
19
STEREO
I
STEREO indicator detection signal input from FM/AM tuner pack.
20
AVSS
—
Analog ground
21
VERSION
I
Destination select signal input (Fixed at H: US model, L: AEP, UK model)
22
FM SIGNAL OUT
I
FM/AM signal meter voltage detection signal input from FM/AM tuner pack.
(AEP, UK model only)
23 to 28
AD6 to 1
I
Function keys signal input
29
AVDD
—
A/D converter power supply pin (+5 V)
30
AVREF
—
A/D converter reference voltage input (+5 V)
31
NC
—
Not used. (Connect to AVREF pin in this set)
32
OPEN
—
Not used. (Open)
33
GND
—
Ground
34
X1
I
Master clock input (4.19 MHz)
35
X2
O
Master clock output (4.19 MHz)
36
REC SW1
O
VIDEO 1 ON/OFF signal output
37
REC SW2
O
MD/TAPE ON/OFF signal output
38, 39
VOL A, B
I
Master volume JOG data input A, B
40
FUNC.MUTE
O
Not used. (Fixed at L in this set)
41
CK
O
Serial clock signal output to electoric volume IC.
42
DATA
O
Serial data signal output to electoric volume IC.
43
STB
O
Serial data strobe signal output to electoric volume IC.
44
SYS.POWER
I
System power signal input
45
AC MUTE
O
A-Class mute signal output
46
RDS INT
I
RDS clock signal input from FM/AM tuner pack. (AEP, UK model only)
47
STOP
I
Stop signal input from reset signal generator IC.
48
VSS
—
Ground
49
SIRCS
I
Sircs signal input from remote control receiver IC.
50
TUNER MUTE
O
Muting control signal output to FM/AM tuner pack.
51
NC
—
Not used. (Open)
52
+5V
—
Power supply pin (+5 V)
53
BASS B. LED
O
BASS BOOST LED drive signal output
54
SPK A LED
O
SPEAKERS A LED drive signal output
55
SPK B LED
O
SPEAKERS B LED drive signal output
4-1. IC PIN DESCRIPTION
• IC201 µPD78044FGF-200-3B9 (SYSTEM CONTROLLER, FL DRIVER)
Pin No.
Pin Name
I/O
Pin Description
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