Sony STR-DE197 Service Manual ▷ View online
9
STR-DE197
2-4. MAIN BOARD
5
two screws
(+BV SUMITITE (B3))
6
screw
(+BV SUMITITE (B3))
8
MAIN board
7
screw
(+BV SUMITITE (B3))
4
two screws
(+BV SUMITITE (B3))
1
CNP902
3
CNP904
2
CNP903
10
STR-DE197
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.
segments turn on at the same time, then each segment turns on one
after another.
Procedure:
1. While depressing the [VIDEO 1], [VIDEO 2], [MD/TAPE], [CD] and
1. While depressing the [VIDEO 1], [VIDEO 2], [MD/TAPE], [CD] and
the [TUNER] buttons simultaneously, press the
?/1
button to
turn on the main power.
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 model)
To auto-scanning and memories of RDS station.
Procedure:
1. While depressing the [MEMORY/ENTER] button, press the
1. While depressing the [MEMORY/ENTER] button, press the
?/1
button to turn on the main power.
2. The message “AUTO-BETICAL SELECT” are scrolled for a
moment and the receiver starts scanning.
AM Tuning Interval Selection Mode (US, Canadian model)
Either 9 kHz step or 10 kHz step can be selected for the AM tuning
interval.
interval.
Procedure:
1. While depressing the [PRESET TUNING +] button or the [TUN-
1. While depressing the [PRESET TUNING +] button or the [TUN-
ING/CHAR +] button, press the
?/1
button to turn on the main
power.
2. Either the message “9k STEP” or “10k STEP” appears for a
moment and select the desired step.
Software Version Display Mode
The software version is displayed.
Procedure:
1. While depressing the [SPEAKER B] and the [VIDEO 1] buttons
1. While depressing the [SPEAKER B] and the [VIDEO 1] buttons
simultaneously, press the
?/1
button to turn on the main power.
2. The destination and the software version are displayed for a
moment.
all light on half light on 1 half light on 2 all light off
ex.)
US, Canadian model : U
*.**
AEP model
: CE
*
.
**
Area
Software version
11
STR-DE197
SECTION 4
DIAGRAMS
1 to 7
DIG7 to DIG1
O
Digit drive signal output to the vacuum fluorescent display (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 CL
O
Serial clock signal output to sound control IC.
15
RDS DATA
I
RDS data signal input from FM/AM tuner pack. (AEP 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, Canadian model, L: AEP model)
22
FM SIGNAL OUT
I
FM/AM signal meter voltage detection signal input from FM/AM tuner pack.
(AEP model only)
23 to 28
AD6 to AD1
I
Function keys signal input
29
AVDD
—
A/D converter power supply pin (+5 V)
30
AV.REF
—
A/D converter reference voltage input (+5 V)
31
—
—
Not used. (Connect to AV.REF 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, VOL 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 electronic volume IC.
42
DATA
O
Serial data signal output to electronic volume IC.
43
STB
O
Serial data strobe signal output to electronic 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 model only)
47
STOP
I
Stop signal input from reset/+5.6V regulator 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
—
—
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
SPEAKER A LED drive signal output
55
SPK B LED
O
SPEAKER B LED drive signal output
4-1. IC PIN DESCRIPTION
• IC201
µ
PD78045FGF-134-3B9 (SYSTEM CONTROLLER, FL DISPLAY DRIVER)
Pin No.
Pin Name
I/O
Pin Description
12
STR-DE197
56
RY R1 COIL
O
Power relay (12V) drive signal output
57
RY POWER
O
AC power relay (9V) drive signal output
58
RY A
O
Speaker A relay (12V) drive signal output
59
RY B
O
Speaker B relay (12V) drive signal output
60
RY HP
O
Phones relay (12V) drive signal output
61
—
—
Not used. (Open)
62 to 70
S15 to S7
O
Segment drive signal output to the vacuum fluorescent display (FL201).
71
VLOAD
—
Power supply pin (–24 V)
72 to 77
S6 to S1
O
Segment drive signal output to the vacuum fluorescent display (FL201).
78 to 80
DIG10 to DIG8
O
Digit drive signal output to the vacuum fluorescent display (FL201).
Pin No.
Pin Name
I/O
Pin Description
Click on the first or last page to see other STR-DE197 service manuals if exist.