SERVICE MANUAL
FM STEREO FM-AM TUNER
AEP Model
UK Model
SPECIFICATIONS
ST-SE570
Ver 1.0 2001.04
9-873-834-11
Sony Corporation
2001D0500-1
Home Audio Company
C
2001.4
Shinagawa Tec Service Manual Production Group
FM tunersection
Frequency range
87.5 - 108.0 MHz
(50 kHz step)
Aerial terminals
75
, unbalanced
IEC-male
Intermediate frequency
10.7 MHz
Sensitivity
at 26 dB quieting (mono)
10.3 dBf, 0.9
µV/75
at 46 dB quieting (stereo)
38.5 dBf, 23
µV/75
Usable sensitivity (IHF)
10.3 dBf, 0.9
µV/75
S/N
at 40 kHz deviation
74 dB (mono), 69 dB
(stereo)
Harmonic distortion
0.09% (mono),
0.18% (stereo)
Frequency response
30 Hz - 15 kHz
(+0.5/1.0 dB)
Separation
45 dB at 1 kHz
Selectivity
at 400 kHz
85 dB
at 300 kHz
70 dB
Output
at 40 kHz deviation
600 mV
AM tuner section
Frequency range
MW:
522 - 1,611 kHz
(9 kHz step)
LW:
144 - 288 kHz
(1 kHz step)
Intermediate frequency
450 kHz
Usable Sensitivity
(with AM loop aerial)
MW:
200
µV/m
LW:
700
µV/m
Signal-to-noise ratio
MW:
54 dB
(50 mV/m, 999 kHz)
LW:
50 dB
(50 mV/m, 216 kHz)
Harmonic distortion
0.3% (50 mV/m,
400 Hz)
Selectivity
50 dB
General
Power requirements
230 V AC, 50/60 Hz
Power consumption
10 W
Dimensions
430 x 83 x 290 mm
(w/h/d)
Weight
2.5 kg
Supplied accessories
Audio cord (1)
AM loop antenna (1)
FM wire antenna (1)
EON connecting cord (1)
Design and specifications are subject to change
without notice.
2
ST-SE570
TABLE OF CONTENTS
1.
GENERAL ................................................................... 3
2.
DISASSEMBLY
2-1. Disassembly Flow ...........................................................
4
2-2. Case (407026) .................................................................
4
2-3. MAIN Board ...................................................................
5
3.
TEST MODE .............................................................. 6
4.
ELECTRICAL ADJUSTMENTS ......................... 8
5.
DIAGRAMS
5-1. Note for Printed Wiring Boards and
Schematic Diagrams .......................................................
9
5-2. Printed Wiring Boards MAIN Section ..................... 10
5-3. Schematic Diagram MAIN Section .......................... 11
5-4. Printed Wiring Boards DISPLAY Section ............... 12
5-5. Schematic Diagram DISPLAY Section .................... 13
5-6. IC Pin Function Description ........................................... 14
6.
EXPLODED VIEWS
6-1. Case Section .................................................................... 16
6-2. Front Panel Section ......................................................... 17
6-3. Chassis Section ............................................................... 18
7.
ELECTRICAL PARTS LIST ............................... 19
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 PUB-
LISHED BY SONY.
3
ST-SE570
SECTION 1
GENERAL
This section is extracted from
instruction manual.
LOCATION OF CONTROLS
Front Panel
AUTO BETICAL SELECT qk (7, 12)
BAND qg (9, 10, 12)
CHARACTER 7 (11)
DIRECT qs (9)
DISPLAY 5 (10, 11, 13)
ENTER qa (9, 11, 12, 14)
EON NEWS/INFO 3 (13, 14)
EON TA 2 (13, 14)
FM MODE qh (9, 10)
MEMORY 4 (8, 11)
MENU 0 (9, 11, 14)
Numeric buttons qf (79)
POWER 1 (7, 8, 12)
PTY qj (14, 15)
RETURN 9 (9)
SHIFT qd (8, 11)
TUNE MODE 8 (8, 10)
TUNING/SELECT 6 (712, 14)
1234567890
1
2 3 4 5
7 8
6
9
0
qa
qs
qd
qf
qg
qh
qj
qk
1
FM ANTENNA terminal
2
AM ANTENNA terminals
3
LINE OUT jack
4
EON CONTROL OUT terminal
Rear Panel
ANTENNA
LINE OUT
EON CONTROL
FM
U
75
COAXIAL
R
L
OUT
AM
2
1
3
4
ST-SE570
4
· This set can be disassembled in the order shown below.
2-1.
DISASSEMBLY FLOW
SECTION 2
DISASSEMBLY
Note: Follow the disassembly procedure in the numerical order given.
2-2.
CASE (407026)
2-2. CASE (407026)
(Page 4)
2-3. MAIN BOARD
(Page 5)
SET
1
two screws
(case 3 TP2)
2
two screws
(case 3 TP2)
3
screw
(case 3 TP2)
4
case (407026)
ST-SE570
5
2-3.
MAIN BOARD
4
MAIN board
2
connector (CNP701)
2
connector (CNP702)
2
connector (CNP952)
1
wire (flat type) (15 core)
(CN101)
3
two screws
(BV/RING)