6. ELECTRICAL PARTS LIST .................................... 24
SECTION 1
GENERAL
COMPONENTS IDENTIFIED BY MARK ! OR DO TTED LINE
2
WITH MARK ! 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.
Location of Parts and Controls
1
4
1 POWER button
2 TUNING/SELECT– button
3 TUNING/SELECT+ button
4 DISPLAY button
5 CHARACTER button
6 ANTENNA button
7 BAND button
567
8
10911
8 MEMORY button
9 MENU ENTRY MENU button
10 MENU ENTRY RETURN button
11 MENU ENTRY ENTER button
12 TUNE MODE button
13 SHIFT button
12
13
2
3
— 2 —
Page 3
SECTION 2
TEST MODE
1. Circuit Check Mode
Set to the reception frequency that the circuit can STEREO RDS stations. (Set the input level to above 70 dB.)
This enables circuit check to be performed in any of the reception modes-FM, AM (MW, LW). Set to a desired band before setting the test
mode.
1. Turn OFF the power.
2. While pressing ENTER and BAND together, turn ON the power.
• The items in the following table will be checked automatically in order every 2 seconds.
DisplayItems
Tuned
IF Frq
Sig Level
Stereo
RDS Signal
AST signal =LOW
IF COUNT OK
SI LEVELh70dB
ST signal=LOW
RDS DATA OK
FM RDS
OK or NG
OK or NG
OK or NG
OK or NG
OK or NG
DISPLAY
AM (MW, LW)
OK or NG
OK or NG
NG
IC251 NG, RV251 adjustments
FE101, IC251 NG, or IF count buffer amp (Q251, Q401) NG
NOTE : The preset data will be erased when this test mode is used. Therefore, take down the data before setting this mode and preset the data
again after completing operations in this mode.
2. FLUORESCENT INDICATOR TUBE Check and KEY Check mode
1. Turn OFF the power.
2. While pressing ENTER and RETURN together, turn ON the power.
3. While continuously pressing ENTER and RETURN together, check the following.
Microcomputer version indication (1 sec) n All light up “7F” n Dot area only “60” n Dot area only “7E”
N
N
Dot area only “5F” N Dot area only “3D”
Indication test pattern
1 7F
p p p p p
p p p p p
p p p p p
p p p p p
p p p p p
p p p p p
p p p p p
2 60
π p π p π
π p π p π
π p π p π
π p π p π
π p π p π
π p π p π
π p π p π
3 7E
p p p p p
π π π π π
π π π π π
π π π π π
π π π π π
π π π π π
π π π π π
4 3D
π π π π π
π π π π π
p p p p p
π π π π π
p p p p p
π π π π π
π π π π π
5 5F
π π π π π
π π π π π
π π π π π
π π π π π
π π π π π
π π π π π
p p p p p
* The indication test patterns from 2 to 5 are indicated on only even grids.
The display changes every 1 sec.
— 3 —
Page 4
4. Release ENTER and RETURN . The KEY CHECK mode will be set.
5. All key numbers will be displayed.
Key Number : 12
6. Each time the key is pressed, the key number will be counted down.
Each key will be counted only once, at the first time.
7. When all keys have been pressed, the process will end.
NOTE : As contents of the Factory Preset will be written into memory after completing this check mode, delete contents of memory
according to 4. Forced RESET.
3. Entering the Factory Preset (In case perform just to write memory of the Factory Preset.)
1. Turn OFF the power.
2. While pressing ENTER and MEMORY together, turn ON the power.
4. Forced RESET (Used to delete the contents of Factory Preset when it is written into the preset memory.)
Clears all the RAMs and sets the initial state
1. Turn OFF the power.
2. While pressing ENTER and ANTENNA together, turn ON the power.
3. When “All clear” is indicated on the display tube.
SECTION 3
ELECTRICAL ADJUSTMENTS
Precautions in Repairing
If the front end unit fails, it is difficult to repair the inner circuits, so
replace the entire front end unit.
Set “IF : WIDE” after the all adjustments.
FM SECTION0dB = 1µV
FM RF SSG
FM ANTENNA (75
set
Ω
)
1 kHz
highpass
filter
LINE OUT
distortion meter
• Standard Setting of FM Stereo RF Signal Generator.
STEREO STANDARD SIGNAL
Carrier frequency: 98MHz
Modulation: Audio 1kHz
Main channel (L+R) :33.75kHz
deviation
Sub channel (L–R) :33.75kHz
deviation
Pilot:7.5kHz
deviation
MONAURAL
STANDARD SIGNAL
Carrier frequency: 98MHz
Modulation : Audio 1kHz
75kHz deviation
How to switch IF BAND : WIDE/NARROW and ANT ATT :
ON/OFF
Method:
1. Press the power button to turn the power on and set to FM.
2. Press the MENU button and press the TUNING/SELECT –, +
button to indicate “Reception” on the fluorescent display tube,
then press the ENTER button.
3. Press the TUNING/SELECT –, + button to indicate “ATT/IF
Band”, and press the ENTER button.
4. “ANT ATT: OFF” is indicated on the fluorescent display tube
and press the TUNING/SELECT –, + button to indicate “ON”
or “OFF”, then press the ENTER button.
When the ANT ATT is set, “ANT ATT” is indicated on the fluorescent display tube.
5. “IF: Wide” is indicated on the fluorescent display tube, and press
the TUNING/SELECT –, + button to indicate “Wide” or “Narrow”, then press the ENTER button.
When the “IF: Narrow” is set, “NARROW” is indicated on the
fluorescent display tube.
6. Set WIDE after the operation.
— 4 —
Page 5
FM Discriminator ADJUSTMENT
(NULL and MONO Distortion Adjustment)
Setting :
IF BAND : WIDE
ANT ATT : OFF
FM RF SSG
set
FM ANTENNA (75
Modulation: Monaural Standard signal
Output level: 6mV (76dB) (at 75
Ω
)
Ω
open)
1 kHz
highpass
filter
LINE OUT
distortion meter
Procedure :
1. Tune the set to 98 MHz.
2. Set “IF BAND : N ARRO W” according to the procedure of “How
to switch IF BAND WIDE/NARROW” on page 6.
3. Adjust RV231 to the point (moment) when the “STEREO” indicator will change from going off to going on.
FM Meter Level Adjustment
Setting :
IF BAND : WIDE
ANT ATT : OFF
FM RF SSG
TP251
NULL terminal
Digital Voltmeter
(DC range)
Procedure :
1. Tune the set to 98 MHz.
2. Adjust IFT252 for 0V reading on the digital voltmeter.
.................. NULL
3. Adjust IFT253 for a minimum reading on the distortion meter.
.................. MONO Distortion (THD)
4. Repeat the adjustments of 2 and 3 several times.
Note : When replacing the ceramic filter, perform this alignment.
Stereo Level Adjustment
Setting :
IF BAND : WIDE
ANT ATT : OFF
FM RF SSG
set
Ω
FM ANTENNA (75
Modulation: Stereo Standard signal
Output level: 18µV (25dB) (at 75
Ω
)
open)
Procedure :
1. Tune the set to 98 MHz.
2. Adjust RV251 to the point (moment) when the “STEREO”
indicator will change from going off to going on.
Narrow Gain Adjustment
Setting :
IF BAND : NARROW
ANT ATT : OFF
FM RF SSG
set
Ω
FM ANTENNA (75
Modulation: Stereo Standard signal
Output level: 3mV (76dB) (at 75
Ω
)
open)
Procedure :
1. Tune the set to 98 MHz.
2. Press DISPLAY button to display the digital signal, then adjust
RV221 to be displayed as “SIG 70dB”.
Stereo Separation Adjustment
Setting :
IF BAND : WIDE
FM RF SSG
Ω
FM ANTENNA (75
Modulation: Stereo Standard signal
Output level: 6mV (76dB) (at 75
)
Ω
open)
set
level meter
LINE OUT
Procedure :
1. Refer to “How to switch IF BAND WIDE/NARROW” on page
6.
FM stereo
Signal generator
Output channel
L-CHL-CHA
R-CHL-CH
R-CHR-CH
L-CHR-CH
Level meter
connection
Level meter
reading (dB)
B
Adjust RV301 for minimum
reading on Level meter
C
D
Adjust RV301 for minimum
reading on Level meter
FM ANTENNA (75
Modulation: Stereo Standard signal
Output level: 18µV (25dB) (at 75
Ω
set
open)
L-CH Stereo separation : A - B
R-CH Stereo separation : C - D
VDD
ANT
ATT
BAND1
BAND2
IF-B
N.C.
MONO
TUN
RESET
X2
4.19MHz
GND
N.C.
LOCK
V
DD
CLK
DAT A
D-IN
CE
BLN
ST
CAL
AST
AV
SS
MUTE
EON
PGM
DATA RDS
R2
KEY 2
KEY 1
SI
DD
AV
AVREF
RIN
R1
RDS CLK
POWER
GND
—
—
—
—
—
—
—
—
—
I
O
I
—
—
I
—
O
O
I
O
—
I
—
I
—
O
—
—
I
—
I
I
I
—
I
I
—
I
I
—
Power supply (+5V).
Not used.
Not used.
Not used.
Not used.
Not used.
Not used.
Not used.
Not used.
System reset input.
Oscillation signal output (4.19MHz).
Oscillation signal input (4.19MHz).
Ground.
Not used.
Lock signal input.
Power supply (+5V).
PLL clock to FE101.
PLL data to FE101.
PLL data from FE101.
PLL latch to FE101.
Not used.
Stereo display detection.
Not used.
Auto stop signal detection.
Ground. (Analog)
Muting signal output.
Not used.
Not used.
RDS data input.
Not used.
Key input.
Key input.
Signal input.
Analog power supply (+5V).
Reference voltage (+5V).
Remote control input.
Not used.
RDS data clock input.
Power supply ON/OFF monitor.
Ground.
Function
Pin No.
41
42
43
44
45
46
47-78
79
80-83
84,85
86-100
IS 5
IS 4
IS 3
IS 2
IS 1
V
DD
P1-P32
V LOAD
P33-P36
P37.16G
15G-1G
Pin Name
I/OFunction
I
I
Model detection.
I
I
I
Power supply (+5V).
—
Drives indication tube.
O
Power supply (–30V).
—
Drives indication tube.
O
Not used.
—
Drives indication tube.
O
— 21 —
— 22 —
Page 15
SECTION 5
EXPLODED VIEWS
NOTE:
• Items marked “*” are not stocked since they are
seldom required for routine service. Some delay
should be anticipated when ordering these items.
• The mechanical parts with no reference number in
the exploded views are not supplied.
• Hardware (# mark) list and accessories and packing materials are given in the last of this parts list.
1
5
1
23
#4
11
10
12
#2
not supplied
7
FL701
#2
10
#2
2
#4
9
8
not supplied
18
15
#4
16
1
17
15
#5
22
21
13
23
The components identified by mark !
or dotted line with mark ! are critical
for safety.
Replace only with part number
specified.
R7121-249-406-11 CARBON1205%1/4W F
R7131-249-406-11 CARBON1205%1/4W F
R7141-249-407-11 CARBON1505%1/4W F
R7151-249-401-11 CARBON475%1/4W F
R7161-249-417-11 CARBON1K5%1/4W F
R7171-249-433-11 CARBON22K5%1/4W
R7181-247-895-00 CARBON470K5%1/4W
R7211-247-807-31 CARBON1005%1/4W
R7221-249-406-11 CARBON1205%1/4W F
R7231-249-406-11 CARBON1205%1/4W F
R7241-249-407-11 CARBON1505%1/4W F
R7251-249-408-11 CARBON1805%1/4W F
R7261-249-409-11 CARBON2205%1/4W F
R7271-249-410-11 CARBON2705%1/4W F
R7281-249-411-11 CARBON3305%1/4W
R7291-249-413-11 CARBON4705%1/4W F
R7301-249-414-11 CARBON5605%1/4W F
R7311-249-413-11 CARBON4705%1/4W F
R7321-249-413-11 CARBON4705%1/4W F
R7331-249-413-11 CARBON4705%1/4W F
R7341-249-413-11 CARBON4705%1/4W F
R7351-249-413-11 CARBON4705%1/4W F
— 24 —
Page 17
DISPLAYMAIN
Ref. No.Part No.DescriptionRemark
R7361-249-413-11 CARBON4705%1/4W F
R7371-249-413-11 CARBON4705%1/4W F
R7381-249-413-11 CARBON4705%1/4W F
R7391-249-413-11 CARBON4705%1/4W F
R7401-249-413-11 CARBON4705%1/4W F
R7411-249-413-11 CARBON4705%1/4W F
R7471-249-429-11 CARBON10K5%1/4W
R7491-249-429-11 CARBON10K5%1/4W
R3301-249-417-11 CARBON1K5%1/4W F
R3311-249-417-11 CARBON1K5%1/4W F
R3321-249-409-11 CARBON2205%1/4W F
R3331-249-409-11 CARBON2205%1/4W F
R3341-249-417-11 CARBON1K5%1/4W F
R3351-249-417-11 CARBON1K5%1/4W F
R3501-249-381-11 CARBON15%1/4W
R3511-249-437-11 CARBON47K5%1/4W
R3521-249-437-11 CARBON47K5%1/4W
R4011-249-421-11 CARBON2.2K5%1/4W F
! R4021-249-409-11 CARBON2205%1/4W F
R4041-249-413-11 CARBON4705%1/4W F
R4051-247-807-31 CARBON1005%1/4W
R4061-247-807-31 CARBON1005%1/4W
— 27 —
The components identified by mark !
or dotted line with mark ! are critical
for safety.
Replace only with part number specified.
Page 20
ST-S3000ES
MAIN
Ref. No.Part No.DescriptionRemark
R4081-249-429-11 CARBON10K5%1/4W
R4091-249-429-11 CARBON10K5%1/4W
R4101-249-430-11 CARBON12K5%1/4W
R4111-249-417-11 CARBON1K5%1/4W F
! R4121-249-407-11 CARBON1505%1/4W F
R4131-249-429-11 CARBON10K5%1/4W
R4141-249-441-11 CARBON100K5%1/4W
R4151-247-883-00 CARBON150K5%1/4W
R4161-249-417-11 CARBON1K5%1/4W F
R4191-249-422-11 CARBON2.7K5%1/4W F
R4201-249-441-11 CARBON100K5%1/4W
R4211-249-417-11 CARBON1K5%1/4W F
R4221-249-418-11 CARBON1.2K5%1/4W F
R4231-249-418-11 CARBON1.2K5%1/4W F
R4241-249-421-11 CARBON2.2K5%1/4W F
R4251-249-420-11 CARBON1.8K5%1/4W F
R4261-249-421-11 CARBON2.2K5%1/4W F