Read Sony DAV-DS1000 / ST-DS1000 Service Manual online
ST-DS1000
AEP Model
UK Model
E Model
Australian Model
SERVICE MANUAL
FM/AM TUNER
Sony Corporation
Home Audio Company
Published by Sony Engineering Corporation
9-877-465-02
2004A16-1
© 2004.01
• ST-DS1000 is the FM/AM tuner in
DAV-DS1000.
SPECIFICATIONS
Ver 1.1 2004.01
FM tuner section
System
PLL quartz-locked digital synthesizer system
Other models:
87.5 – 108.0 MHz (50 kHz step)
Antenna terminals
75 ohms, unbalanced
Intermediate frequency
10.7 MHz
Antenna
FM wire antenna
AM tuner section
System
PLL quartz-locked digital synthesizer system
Tuning range
Other models:
531 – 1,602 kHz (with the interval set at 9 kHz)
530 – 1,710 kHz (with the interval set at 10 kHz)
530 – 1,710 kHz (with the interval set at 10 kHz)
Intermediate frequency
450 kHz
Antenna
Loop antenna
Dimensions (approx.)
110
× 180 × 110 mm (4
3
/
8
× 7
1
/
8
× 4
3
/
8
inch) (w/h/d)
Mass (approx.)
0.3 kg (0.7 lb)
General
Power requirements
Australian and Asian models:
Australian and Asian models:
220 – 240 V AC, 50/60 Hz
Mexican model:
120 V AC, 60 Hz
Other models:
110 – 120 V/220 – 240 V AC, 50/60 Hz
Power consumption
225 W
1 W (120 V AC) 1.5W (230 V AC) (at the Power Saving Mode)
1 W (120 V AC) 1.5W (230 V AC) (at the Power Saving Mode)
Operating temperature
5˚C to 35˚C (41˚F to 95˚F)
Operating humidity
25 % to 80 %
Design and specifications are subject to change without notice.
2
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.
Notes on chip component replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be
• Notice that the minus side of a tantalum capacitor may be
damaged by heat.
Flexible Circuit Board Repairing
• Keep the temperature of soldering iron around 270˚C
during repairing.
• Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).
• Be careful not to apply force on the conductor when soldering
or unsoldering.
ST-DS1000
Unleaded solder
Boards requiring use of unleaded solder are printed with the lead-
free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with
the lead free mark due to their particular size.)
free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with
the lead free mark due to their particular size.)
: LEAD FREE MARK
Unleaded solder has the following characteristics.
• Unleaded solder melts at a temperature about 40
• Unleaded solder melts at a temperature about 40
°C higher than
ordinary solder.
Ordinary soldering irons can be used but the iron tip has to be
applied to the solder joint for a slightly longer time.
Soldering irons using a temperature regulator should be set to
about 350
Ordinary soldering irons can be used but the iron tip has to be
applied to the solder joint for a slightly longer time.
Soldering irons using a temperature regulator should be set to
about 350
°C.
Caution: The printed pattern (copper foil) may peel away if the
heated tip is applied for too long, so be careful!
heated tip is applied for too long, so be careful!
• Strong viscosity
Unleaded solder is more viscous (sticky, less prone to flow) than
ordinary solder so use caution not to let solder bridges occur such
as on IC pins, etc.
ordinary solder so use caution not to let solder bridges occur such
as on IC pins, etc.
• Usable with ordinary solder
It is best to use only unleaded solder but unleaded solder may
also be added to ordinary solder.
also be added to ordinary solder.
DVD player :
DVX-DS1000
DVX-DS1000
DVD player : DVX-DS1000
Sub woofer :
SA-WS1000
SA-WS1000
Sub woofer : SA-WS1000
Tuner :
ST-DS1000
ST-DS1000
Tuner : ST-DS1000
Front speaker :
SS-IF1000
SS-IF1000
Front speaker : SS-IF1000
Center speaker :
SS-CT1000
SS-CT1000
Center speaker :
SS-CT1000
SS-CT1000
Rear speaker :
SS-IR1000
SS-IR1000
Rear speaker : SS-IR1000
Remote
commander :
RM-SS1000/
commander :
RM-SS1000/
SS1000B
Remote commander :
RM-SS1000/SS1000B
RM-SS1000/SS1000B
Units required for
operation
check
Unit.
need to
checking
need to
checking
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
*
1
*
1
*
2
*
1 Only the defective unit.
*
2 Either one of them.
Units with
a
mark: The units that are required for the system operation check during repair service
However, there can be a case that some units of the system need to not be brought into repair shop depending on the unit. that became defective.
• The units that are required for the system operation check during repair service
3
TABLE OF CONTENTS
ST-DS1000
1. ELECTRICAL ADJUSTMENTS
································· 4
2. DIAGRAMS
········································································ 6
2-1. PRINTED WIRING BOARD
– Tuner Board (AEP, UK) – ·········································· 7
2-2. PRINTED WIRING BOARD
– Tuner Board (EXCEPT AEP, UK) – ·························· 8
2-3. SCHEMATIC DIAGRAM
– Tuner Board (AEP, UK)(1/2) – ··································· 9
2-4. SCHEMATIC DIAGRAM
– Tuner Board (AEP, UK)(2/2) – ································· 10
2-5. SCHEMATIC DIAGRAM
– Tuner Board (EXCEPT AEP, UK)(1/2) – ················· 11
2-6. SCHEMATIC DIAGRAM
– Tuner Board (EXCEPT AEP, UK)(2/2) – ················· 12
2-7. IC PIN FUNCTION DESCRIPTION ························· 14
3. EXPLODED VIEWS
OVERALL SECTION ················································· 15
4. ELECTRICAL PARTS LIST
······································· 16
Ver 1.1 2004.01
4
ST-DS1000
AM Section
Function switch
: AM
FM Section
Function switch
: FM
• Connecting Level Meter (FM and AM)
• Connecting Digital Voltmeter (FM and AM)
AM RF signal
generator
generator
30% amplitude modulation by 400Hz
signal.
Output level : as low as possible
signal.
Output level : as low as possible
Put the lead-wire
antenna close to
the set.
antenna close to
the set.
FM RF signal
generator
generator
33.75kHz frequency deviation by
1kHz signal.
Output level : as low as possible
1kHz signal.
Output level : as low as possible
antenna
terminal
terminal
0.01
µ
F
digital
voltmeter
voltmeter
100 k
Ω
TP (VT)
J1100
(
PHONES
)
DVX-DS1000
32
Ω
SA-WS1000
set
ST-DS1000
level meter
(range: 0.5–5 V ac)
AM IF ADJUSTMENT
Adjust for a maximum reading on level meter.
T5
450 kHz
(
) : 9 kHz step (MX)
<
> : 9 kHz step (EXCEPT MX)
no mark : 10kHz step
AM FREQUENCY COVERAGE CHECK
Frequency Display
530 kHz
1,710 kHz
(531 kHz)
(1,710 kHz)
<531 kHz>
<1,602 kHz>
Reading on Digital voltmeter
1.1
± 0.3 V
6.8
± 0.8V
(6.8
± 0.8V)
<6.6
± 0.6V>
Adjustment Part
confirmation
confirmation
<
> : 9 kHz step
no mark : Others
AM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
T1
T5
620 kHz
<
621
kHz>
1,400 kHz <1,404 kHz>
FM DET ADJUSTMENT
Adjust for a maximum reading on level meter.
T4
10.7 MHz
FM FREQUENCY COVERAGE ADJUSTMENT
Frequency Display
87.5 MHz
108 MHz
Reading on Digital voltmeter
1.5
± 0.2 V
7.8
± 0.8 V
Adjustment Part
confirmation
L7
(
) : AEP, UK
FM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L2
L4
(L5)
T3
87.5 MHz
87.5 MHz
87.5 MHz
98.0 MHz
FM SD SENSITIVITY ADJUSTMENT
RV1
When FM RF signal generator output level is set to 25 dB
µV,
adjust RV1 so that signal level is high at 6 pin of IC1.
Abbreviation
MX
: Mexican model.
Adjustment Location : TUNER board (See page 5)
0dB = 1
µV
SECTION 1
ELECTRICAL ADJUSTMENTS
