Sony ST-SA50ES Service Manual ▷ View online
— 23 —
5-7. IC PIN FUNCTION (DISPLAY BOARD)
• IC701 System Control (
µ
PD780204GF-050-3BA)
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41 to 45
46
47 to 78
79
80 to 83
84
85
86 to 100
Pin Name
VDD
ANT
ATT
BAND1
BAND2
IF-B
NC
MONO
TUN
RESET
X2
X1
GND
NC
LOCK
VDD
CLK
DATA
D-IN
CE
BLN
ST
CAL
AST
AVSS
MUTE
EON
PGM
DATA RDS
R2
KEY 2
KEY 1
SI
AVDD
AVREF
RIN
R1
RDS CLK
POWER
GND
IS 1 to 5
VDD
P1 to P32
V LOAD
P33 to P36
P37
G15
G1 to G15
I/O
—
—
—
—
—
—
—
—
—
I
O
I
—
—
—
—
O
O
I
O
—
I
—
I
—
O
—
—
—
O
I
I
I
—
I
I
I
—
I
—
I
—
O
—
O
—
—
O
Function
Power supply (+5V).
Not used. (Open)
Not used. (Open)
Not used. (Open)
Not used. (Open)
Not used. (Open)
Not used. (Open)
Not used. (Open)
Not used. (Open)
System reset input.
Oscillation signal output (4.19MHz).
Oscillation signal input (4.19MHz).
Ground.
Not used. (Open)
Not used. (Open)
Power supply (+5V).
PLL clock to FE101.
PLL data to FE101.
PLL data from FE101.
PLL Latch to FE101.
Not used. (Open)
Stereo display detection.
Not used. (Open)
Auto stop signal detection.
Ground.(Analog)
Muting signal output.
Not used. (Open)
Not used. (Open)
Not used. (Open)
Rotary encoder phase detection.
Key input.
Key input.
Signal input.
Analog power supply (+5V).
Reference voltage (+5V).
Remote control input.
Rotary encoder number of rotation detection.
Not used. (Open)
Power supply ON/OFF monitor.
Ground.
Model detection.
Power supply (+5V).
Fluorescent indicator tube, segment drive.
Power supply (–30V).
Drives indication tube.
Not used. (Open)
Not used. (Open)
Fluorescent indicator tube, grid drive.
— 24 —
IC301 LA3401
IC901 LA5667
IC221, IC251 LA1235
5-8. IC BLOCK DIAGRAMS (TUNER BOARD)
1
FM/AM SELECT
MUTING
FM/AM SELECT CONTROL
LOGIC / MUTE ON/OFF
MUTING
OUT
LAMP
DRIVE
PLL
GND
MPX
22
21 20 19 18 17 16
15
14
13
12
2
3
4
5
6
7
8
9
10
11
AM
+B
VCO
MUTE
ST
FM
L
R
FM/AM
1
2
3
4
REG
GND
CONTROL
REG
5
6
7
3
6
11
2
5
8
1
4
14
15
12
9
10
16
13
7
FM IF AMP
LIMITER
AF/NULL
METER
QUADRATURE
DET
AF AMP
IF OFF
NULL METER
SHORTING
LEVEL
DET
METER
DRIVE
MUTING
CIRCUIT
CIRCUIT
DETUNE
DET
GND
B+
SECTION 6
EXPLODED VIEW
NOTE:
•
-XX, -X mean standardized parts, so they may
have some differences from the original one.
have some differences from the original one.
•
Items marked “*” are not stocked since they
are seldom required for routine service. Some
delay should be anticipated when ordering these
items.
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.
in the exploded views are not supplied.
The components identified by mark
!
or
dotted line with mark
!
are critical for safety.
Replace only with part number specified.
— 25 —
a
a
b
b
2
1
4
3
5
20
18
19
18
19
2
21
21
2
2
17
16
15
17
6
6
8
9
2
2
2
2
2
12
2
2
14
14
14
13
11
11
11
11
10
Nut supplied
with RV701
with RV701
ECP700
not supplied
not supplied
not supplied
PT901
7
Ref. No.
Part No.
Description
Remarks
Ref. No.
Part No.
Description
Remarks
1
4-970-683-91 PANEL, FRONT
2
4-974-510-01 SCREW(+BV 3
×
8 CU)
3
4-942-568-41 EMBLEM (NO.5), SONY
4
4-218-054-01 KNOB(T)
5
X-4951-152-1 BASE ASSY, PANEL
6
4-907-989-01 CUSHION (S)
7
A-4419-400-A DISPLAY BOARD COMPLETE
8
4-998-790-01 KNOB,POWER
* 9
1-656-890-12 AC SW BOARD
10
4-974-321-61 CASE
11
3-704-366-01 SCREW (CASE) (M3
×
8)
! 12
1-783-531-31 CORD, POWER
13
3-703-244-00 BUSHING (2104), CORD
14
3-704-515-41 SCREW (BV/RING)
* 15
4-994-272-12 PANEL, BACK
16
A-4419-399-A TUNER BOARD COMPLETE
17
4-910-502-01 CUSHION, ANTENNA
18
4-970-123-03 FOOT(F50180S)
19
4-970-124-01 CUSHION (F50180S)
* 20
1-656-891-12 ENCODER BOARD
21
7-685-650-79 SCREW +BVTP 3
×
16 TYPE2 TT(B)
ECP700 1-690-880-41 LEAD (WITH CONNECTOR)
! PT901
1-423-858-11 TRANSFORMER,POWER
6-1. FRONT PANEL AND CASE SECTION
NOTE:
•
Due to standardization, replacements in the
parts list may be different from the parts
specified in the diagrams or the components
used on the set.
parts list may be different from the parts
specified in the diagrams or the components
used on the set.
•
-XX, -X mean standardized parts, so they
may have some difference from the original
one.
may have some difference from the original
one.
•
Items marked “*” are not stocked since they
are seldom required for routine service.
Some delay should be anticipated when
ordering these items.
are seldom required for routine service.
Some delay should be anticipated when
ordering these items.
•
CAPACITORS:
uF: µF
uF: µF
•
RESISTORS
All resistors are in ohms.
METAL: metal-film resistor
METAL OXIDE: Metal Oxide-film resistor
F: nonflammable
All resistors are in ohms.
METAL: metal-film resistor
METAL OXIDE: Metal Oxide-film resistor
F: nonflammable
•
COILS
uH: µH
uH: µH
The components identified by mark
!
or
dotted line with mark
!
are critical for safety.
Replace only with part number specified.
•
SEMICONDUCTORS
In each case, u: µ, for example:
uA...: µA... , uPA... , µPA... ,
uPB... , µPB... , uPC... , µPC... ,
uPD..., µPD...
In each case, u: µ, for example:
uA...: µA... , uPA... , µPA... ,
uPB... , µPB... , uPC... , µPC... ,
uPD..., µPD...
When indicating parts by reference number,
please include the board name.
please include the board name.
Ref. No.
Part No.
Description
Remarks
Ref. No.
Part No.
Description
Remarks
— 26 —
SECTION 7
ELECTRICAL PARTS LIST
*
1-656-890-12 AC SW BOARD
***********
< SWITCH >
! S901
1-572-267-51 SWITCH, PUSH (AC POWER)(1 KEY)(POWER)
************************************************************
A-4419-400-A DISPLAY BOARD, COMPLETE
***********************
*
4-921-941-71 CUSHION (FL)
*
4-945-292-01 HOLDER, INDICATION TUBE
< CAPACITOR >
C701
1-162-306-11 CERAMIC
0.01uF
20%
16V
C702
1-162-306-11 CERAMIC
0.01uF
20%
16V
C703
1-162-209-31 CERAMIC
27PF
5%
50V
C704
1-162-209-31 CERAMIC
27PF
5%
50V
C706
1-164-159-11 CERAMIC
0.1uF
50V
C707
1-126-051-11 ELECT
47uF
20%
35V
C708
1-162-306-11 CERAMIC
0.01uF
20%
16V
C709
1-162-306-11 CERAMIC
0.01uF
20%
16V
C710
1-162-306-11 CERAMIC
0.01uF
20%
16V
C711
1-126-048-81 ELECT
10uF
20%
50V
C712
1-104-905-11 CAPACITOR
0.22F
5.5V
C713
1-162-306-11 CERAMIC
0.01uF
20%
16V
C714
1-126-043-11 ELECT
0.47uF
20%
50V
C715
1-126-051-11 ELECT
47uF
20%
35V
C716
1-162-306-11 CERAMIC
0.01uF
20%
16V
C718
1-126-048-81 ELECT
10uF
20%
50V
< DIODE >
D701
8-719-911-19 DIODE 1SS119
D702
8-719-911-19 DIODE 1SS119
D703
8-719-911-19 DIODE 1SS119
D705
8-719-911-19 DIODE 1SS119
D707
8-719-911-19 DIODE 1SS119
< FLUORESCENT INDICATOR TUBE >
FL701
1-517-860-11 INDICATOR TUBE, FLUORESCENT
< IC >
IC701
8-759-574-43 IC uPD780204GF-050-3BA
IC702
8-749-923-43 IC GP1U57XB (REMOTE SENSOR)
< TRANSISTOR >
Q701
8-729-119-78 TRANSISTOR
2SC403SP-51
< RESISTOR >
R702
1-249-429-11 CARBON
10K
5%
1/4W
R703
1-249-437-11 CARBON
47K
5%
1/4W
R704
1-249-419-11 CARBON
1.5K
5%
1/4W F
R705
1-249-419-11 CARBON
1.5K
5%
1/4W F
R707
1-249-441-11 CARBON
100K
5%
1/4W
R708
1-249-441-11 CARBON
100K
5%
1/4W
R709
1-247-807-31 CARBON
100
5%
1/4W
R710
1-249-406-11 CARBON
120
5%
1/4W F
R711
1-249-406-11 CARBON
120
5%
1/4W F
R712
1-249-407-11 CARBON
150
5%
1/4W F
R713
1-249-408-11 CARBON
180
5%
1/4W F
R714
1-249-409-11 CARBON
220
5%
1/4W F
R715
1-249-410-11 CARBON
270
5%
1/4W F
R716
1-249-411-11 CARBON
330
5%
1/4W
R717
1-249-413-11 CARBON
470
5%
1/4W F
R718
1-249-414-11 CARBON
560
5%
1/4W F
R719
1-249-416-11 CARBON
820
5%
1/4W F
R720
1-249-418-11 CARBON
1.2K
5%
1/4W F
R721
1-249-421-11 CARBON
2.2K
5%
1/4W F
R723
1-247-807-31 CARBON
100
5%
1/4W
R724
1-249-406-11 CARBON
120
5%
1/4W F
R725
1-249-406-11 CARBON
120
5%
1/4W F
R726
1-249-407-11 CARBON
150
5%
1/4W F
R727
1-249-408-11 CARBON
180
5%
1/4W F
R728
1-249-409-11 CARBON
220
5%
1/4W F
R729
1-249-410-11 CARBON
270
5%
1/4W F
R730
1-249-411-11 CARBON
330
5%
1/4W
R731
1-249-413-11 CARBON
470
5%
1/4W F
R732
1-249-414-11 CARBON
560
5%
1/4W F
R733
1-249-416-11 CARBON
820
5%
1/4W F
R734
1-249-418-11 CARBON
1.2K
5%
1/4W F
! R737
1-249-401-11 CARBON
47
5%
1/4W F
R738
1-249-417-11 CARBON
1K
5%
1/4W F
R739
1-249-433-11 CARBON
22K
5%
1/4W
R740
1-247-895-00 CARBON
470K
5%
1/4W
R741
1-249-413-11 CARBON
470
5%
1/4W F
R743
1-249-413-11 CARBON
470
5%
1/4W F
R744
1-249-413-11 CARBON
470
5%
1/4W F
R745
1-249-413-11 CARBON
470
5%
1/4W F
R746
1-249-413-11 CARBON
470
5%
1/4W F
R747
1-249-413-11 CARBON
470
5%
1/4W F
R748
1-249-413-11 CARBON
470
5%
1/4W F
R750
1-249-413-11 CARBON
470
5%
1/4W F
R751
1-249-413-11 CARBON
470
5%
1/4W F
R753
1-249-413-11 CARBON
470
5%
1/4W F
R782
1-249-437-11 CARBON
47K
5%
1/4W
AC SW
DISPLAY
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