Sony ST-D777ES Service Manual ▷ View online
ST-D777ES
AEP Model
UK Model
SERVICE MANUAL
DAB/FM/AM TUNER
SPECIFICATIONS
DAB tuner section
Frequency range
174.928 (5A) - 239.200 (13F) MHz
1452.960 (L1) - 1490.624 (L23) MHz
1452.960 (L1) - 1490.624 (L23) MHz
Sensitivity
6.9
µ
V/28 dBf
Signal-to-noise ratio
100 dB
THD+N
0.005 % (1 kHz)
Channel separation
90 dB (1 kHz)
Selectivity
35 dB (at adjacent channel)
Frequency response
+0.2/-0.3 dB (5 Hz - 20 kHz)
DA converter
Pulse D/A S-TACT128
Digital filter
VC24 (only for DAB analog output)
Digital output
Terminals: Coaxial and Optical
Sampling frequncy: 48 kHz
Sampling frequncy: 48 kHz
RDI output
Optical
Aerial terminal
75
Ω
, F female
FM tuner section
Frequency range
87.5 - 108.0 MHz
Sensitivity
at 40 kHz derivation
at 26 dB quieting (mono) 0.9
at 26 dB quieting (mono) 0.9
µ
V/10.3 dBf
at 46 dB quieting (stereo) 23
µ
V/38.5 dBf
Signal-to-noise ratio
at 40 kHz derivation
80 dB (mono), 76 dB (stereo)
80 dB (mono), 76 dB (stereo)
THD+N
1 kHz, 40 kHz derivation
WIDE
0.035 % (mono), 0.045 % (stereo)
WIDE
0.035 % (mono), 0.045 % (stereo)
Channel separation
50 dB (1 kHz) WIDE
Selectivity
at 400 kHz
WIDE 85 dB
NARROW 90 dB
WIDE 85 dB
NARROW 90 dB
Frequency respose
+0.2/-0.3 dB (30 Hz - 15 kHz)
Aerial terminal
75
Ω
, IEC male
AM tuner section
Frequency range
MW: 522 - 1,611 kHz (9 kHz step)
LW: 144 - 288 kHz
(1 kHz step: Manual tuning)
(3 kHz step: Automatic tuning)
LW: 144 - 288 kHz
(1 kHz step: Manual tuning)
(3 kHz step: Automatic tuning)
Sensitivity
(with AM loop aerial)
MW: 200
MW: 200
µ
V/m
LW: 700
µ
V/m
Signal-to-noise ratio
MW: 54 dB (50 mV/m, 999 kHz)
LW: 50 dB (50 mV/m, 216 kHz)
LW: 50 dB (50 mV/m, 216 kHz)
Harmonic distortion
0.3 %
Sensitivity
50 dB
Aerial terminal
Push lever
General
Power requirements
230 V, AC 50/60 Hz
Power consumption
20 W
Dimensions
430
×
97.5
×
374 mm (w/h/d)
Weight
6.2 kg
Remote control capability
IR
Station preset capacity max. 99 (DAB, FM and AM total)
Supplied accessories
Supplied accessories
• Audio cord (1)
• AM loop aerial (1)
• FM wire aerial (1)
• DAB wire aerial (1)
• Remote commander (1)
• R6 (size AA) baatteries (2)
• AM loop aerial (1)
• FM wire aerial (1)
• DAB wire aerial (1)
• Remote commander (1)
• R6 (size AA) baatteries (2)
Design and specifications are subject to change without notice.
2
TABLE OF CONTENTS
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK
0
OR DOTTED LINE WITH
MARK
0
ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS
LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE
COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS
APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS
PUBLISHED BY SONY.
COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS
APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS
PUBLISHED BY SONY.
1.
GENERAL
······································································· 3
2.
TEST MODE
································································· 12
3.
ELECTRICAL ADJUSTMENTS
····························· 14
4.
DIAGRAMS
··································································· 17
4-1. BLOCK DIAGRAM ·························································· 17
4-2. CIRCUIT BOARDS LOCATION ····································· 18
4-3. PRINTED WIRING BOARD MAIN SECTION ············ 19
4-4. SCHEMATIC DIAGRAM MAIN SECTION (1/4) ········ 20
4-5. SCHEMATIC DIAGRAM MAIN SECTION (2/4) ········ 21
4-6. SCHEMATIC DIAGRAM MAIN SECTION (3/4) ········ 22
4-7. SCHEMATIC DIAGRAM MAIN SECTION (4/4) ········ 23
4-8. SCHEMATIC DIAGRAM DISPLAY SECTION ··········· 24
4-9. PRINTED WIRING BOARD DISPLAY SECTION ······ 25
4-10. SCHEMATIC DIAGRAM POWER SECTION ············· 26
4-11. PRINTED WIRING BOARD POWER SECTION ········ 27
4-12. IC PIN FUNCTION DESCRIPTION ······························· 28
4-13. IC BLOCK DIAGRAMS ·················································· 31
4-2. CIRCUIT BOARDS LOCATION ····································· 18
4-3. PRINTED WIRING BOARD MAIN SECTION ············ 19
4-4. SCHEMATIC DIAGRAM MAIN SECTION (1/4) ········ 20
4-5. SCHEMATIC DIAGRAM MAIN SECTION (2/4) ········ 21
4-6. SCHEMATIC DIAGRAM MAIN SECTION (3/4) ········ 22
4-7. SCHEMATIC DIAGRAM MAIN SECTION (4/4) ········ 23
4-8. SCHEMATIC DIAGRAM DISPLAY SECTION ··········· 24
4-9. PRINTED WIRING BOARD DISPLAY SECTION ······ 25
4-10. SCHEMATIC DIAGRAM POWER SECTION ············· 26
4-11. PRINTED WIRING BOARD POWER SECTION ········ 27
4-12. IC PIN FUNCTION DESCRIPTION ······························· 28
4-13. IC BLOCK DIAGRAMS ·················································· 31
5.
EXPLODED VIEWS
···················································· 34
5-1. FRONT PANEL SECTION ··············································· 34
5-2. MAIN SECTION ······························································· 35
5-2. MAIN SECTION ······························································· 35
6.
ELECTRICAL PARTS LIST
···································· 36
SERVICE POSITION
• The service position of the MAIN board is the state in which the back-panel is removed
and the MAIN board is swing-raised by 90
and the MAIN board is swing-raised by 90
°
.
(An insulating material is necessary to prevent the machine from shorting.)
Insulating material
MAIN board
3
SECTION 1
GENERAL
FRONT PANEL
REAR PANEL
1
2 3 4
8
7
6
5
9
qd qa
0
qs
qf
qg
1 2 3
4
5
6
7
8
1
?
/
1
switch
2
DAB button
3
FM button
4
AM button
5
TUNING MODE button
6
PTY button
7
TUNING/SELECT button
8
MENU button
9
ENTER button
0
MEMORY button
qa
CHARACTER button
qs
MONO/SC button
qd
DISPLAY MODE button
qf
EON button
qg
DISPLAY button
1
DAB RDI OUT OPTICAL jack
2
DAB DIGITAL OUT COAXIAL jack
3
DAB DIGITAL OUT OPTICAL jack
4
ANTENNA DAB jack
5
ANTENNA FM jack
6
ANTENNA AM terminal
7
ANALOG OUT jack
8
POWER cord
4
This section is e
xtr
acted
acted
from instr
uction manual.