Sony SRF-DR2000 Service Manual ▷ View online
– 21 –
– 22 –
SRF-DR2000
4-6. SCHEMATIC DIAGRAM (MICOM SECTION)
r
Refer to page 18 for Wavforms.
r
Refer to page 23 for IC Block Diagrams.
Note:
• All capacitors are in
• All capacitors are in
µ
F unless otherwise noted. pF:
µµ
F
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
U
: B+ Line.
• Power voltage is dc 3 V and fed with regulated dc power
supply from external power voltage jack.
Note:
•
•
X
: parts extracted from the component side.
•
r
: Through hole.
•
b
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
Caution:
Pattern face side:
Parts on the pattern face side seen from
(Conductor Side)
the pattern face are indicated.
Parts face side:
Parts on the parts face side seen from
(Component Side)
the parts face are indicated.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : FM
(
no mark : FM
(
) : Multiplex
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
• Signal path.
J
: Multiplex
– 23 –
IC402 CXA1111N
r
IC BLOCK DIAGRAMS
IC404 LA4533M
IC403 LA3335M
FF 0º
1
2
3
4
5
6
7
8
9
10
FF 1/2
FF 90º
V.C.O
VCO STOP
SYNC
DET
STEREO
SWITCH
SWITCH
PHASE
COMPALATE
LAMP
TRIGGER
DECODER
IN
FILTER
VCC
VCO
NC
GND
STLED
M/ST
L
R
24
23
22
21
20
19
18
17
16
15
14
13
1
2
3
4
5
6
7
8
9
10
11
12
FM.IF
DISCRI
TUNING
METER
RIPPLE
FILTER
AM.IF
DET.AGC
BAND SIGNAL
OUTPUT CIRCUIT
REGULATOR
FM.FE
AM.FE
BAND
AM IF
FM IF
TUNE
EARTH
IF
AFCW
AFCJ
DET
FILTER
VCC
MUTE
MIX OUT
EARTH
FM IN
NC
AM RF
FM RF
REG
FM OSC
AFC
AM OSC
DISCRI
EARTH
IC401 TA8158F (ER)
POWER
SWITCH
MUTE
CIRCIUT
BIAS
1
2
3
4
5
6
7
8
9
10 MT/SW
OUT1
POWER GND
OUT2
VCC
P/SW
IN1
PRE GND
IN2
REF
AMP2
AMP1
1
2
3
4
5
6
7
8
9
10
RF AMP
OSCILLATOR
BIAS
POWER SUPPLY
CIRCUIT
NC
VCC
OSC
OSC MONI
MIX OUT
RF IN
BIAS
RF OUT
MIX IN
GND
BUFFER
– 24 –
SECTION 5
EXPLODED VIEW
NOTE :
• -XX, -X mean standardized parts, so they
may have some difference from the original
one.
one.
• Items marked “ * ”are not stocked since they
are seldom required for routine service. Some
delay should be anticipated when ordering
these items.
delay should be anticipated when ordering
these items.
• The mechanical parts with no reference
number in the exploded views are not
supplied.
supplied.
• Accessories and packing materials are given
in the last of this parts list.
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
1
3-930-536-11 PANEL
2
3-930-534-11 CABINET (FRONT)
3
1-762-590-21 SWITCH, RUBBER KEY (MENU)
4
1-762-591-21 SWITCH, RUBBER KEY (POWER)
* 5
A-3663-105-A MICOM BOARD, COMPLETE
6
3-374-079-01 SCREW (1.7X5), TAPPING
* 7
A-3683-003-A MAIN BOARD, COMPLETE
8
3-930-599-01 TERMINAL (-), BATTERY
9
3-930-598-01 TERMINAL (+), BATTERY
* 10
3-930-535-01 HOLDER (LCD)
11
3-936-441-01 CUSHION (BATTERY CASE LID)
12
3-930-591-21 LID, BATTERY CASE
13
3-910-063-01 SCREW (1.7X10)
14
3-930-583-21 CABINET (REAR)
15
3-930-593-21 STAND
* 17
3-698-057-01 STOPPER, B1
18
3-027-525-01 CUSHION
19
3-027-608-01 SPACER (DIA. 3)
20
3-572-550-01 CUSHION (A)
LCD1
1-801-152-11 LCD MODULE
LCD1
1
2
3
4
5
6
7
19
8
9
10
11
12
13
14
15
17
not supplied
not supplied
not supplied
20
18
18
– 25 –
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.
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.
one.
• RESISTORS
All resistors are in ohms
METAL : Metal-film resistor
METAL OXIDE :Metal oxide-film resistor
F : nonflammable
METAL : Metal-film resistor
METAL OXIDE :Metal oxide-film resistor
F : nonflammable
• Items marked “ * ”are not stocked since
they are seldom required for routine service.
Some delay should be anticipated when
ordering these items.
Some delay should be anticipated when
ordering these items.
• SEMICONDUCTORS
In each case, u :
µ
, for example :
uA.... :
µ
A.... , uPA.... :
µ
PA....
uPB.... :
µ
PB.... , uPC.... :
µ
PC....
uPD.... :
µ
PD....
• CAPACITORS
uF :
µ
F
• COILS
uH :
µ
H
When indicating parts by reference num-
ber, please include the board.
ber, please include the board.
SECTION 6
ELECTRICAL PARTS LIST
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
*
A-3683-003-A MAIN BOARD, COMPLETE
*********************
3-027-783-01 LEAF (CF), COPPER
< FILTER >
BPF401 1-239-061-11 FILTER, BAND PASS
< CAPACITOR >
C401
1-163-251-11 CERAMIC CHIP
100PF
5%
50V
C402
1-163-220-11 CERAMIC CHIP
3PF
0.25PF 50V
C403
1-163-009-11 CERAMIC CHIP
0.001uF
10%
50V
C404
1-163-227-11 CERAMIC CHIP
10PF
0.5PF
50V
C405
1-163-085-00 CERAMIC CHIP
2PF
50V
C406
1-163-141-00 CERAMIC CHIP
0.001uF
5%
50V
C407
1-163-009-11 CERAMIC CHIP
0.001uF
10%
50V
C408
1-163-141-00 CERAMIC CHIP
0.001uF
5%
50V
C409
1-163-085-00 CERAMIC CHIP
2PF
50V
C410
1-163-141-00 CERAMIC CHIP
0.001uF
5%
50V
C411
1-124-589-11 ELECT
47uF
20%
16V
C412
1-163-021-91 CERAMIC CHIP
0.01uF
10%
50V
C413
1-163-021-91 CERAMIC CHIP
0.01uF
10%
50V
C414
1-163-021-91 CERAMIC CHIP
0.01uF
10%
50V
C416
1-163-021-91 CERAMIC CHIP
0.01uF
10%
50V
C417
1-126-157-11 ELECT
10uF
20%
16V
C418
1-163-021-91 CERAMIC CHIP
0.01uF
10%
50V
C419
1-164-346-11 CERAMIC CHIP
1uF
16V
C420
1-164-346-11 CERAMIC CHIP
1uF
16V
C421
1-163-038-91 CERAMIC CHIP
0.1uF
25V
C422
1-163-037-11 CERAMIC CHIP
0.022uF
10%
25V
C423
1-163-121-00 CERAMIC CHIP
150PF
5%
50V
C424
1-163-133-00 CERAMIC CHIP
470PF
5%
50V
C425
1-126-157-11 ELECT
10uF
20%
16V
C426
1-163-021-91 CERAMIC CHIP
0.01uF
10%
50V
C427
1-163-038-91 CERAMIC CHIP
0.1uF
25V
C428
1-163-275-11 CERAMIC CHIP
0.001uF
5%
50V
C429
1-164-346-11 CERAMIC CHIP
1uF
16V
C430
1-163-023-00 CERAMIC CHIP
0.015uF
5%
50V
C431
1-163-038-91 CERAMIC CHIP
0.1uF
25V
C432
1-163-038-91 CERAMIC CHIP
0.1uF
25V
C433
1-163-023-00 CERAMIC CHIP
0.015uF
5%
50V
C434
1-104-847-11 TANTAL. CHIP
22uF
20%
4V
C435
1-164-346-11 CERAMIC CHIP
1uF
16V
C436
1-163-038-91 CERAMIC CHIP
0.1uF
25V
C437
1-124-584-00 ELECT
100uF
20%
10V
C438
1-163-038-91 CERAMIC CHIP
0.1uF
25V
C439
1-126-382-11 ELECT
100uF
20%
6.3V
C440
1-124-584-00 ELECT
100uF
20%
10V
C442
1-135-201-11 TANTALUM CHIP 10uF
20%
4V
C443
1-164-346-11 CERAMIC CHIP
1uF
16V
C445
1-163-037-11 CERAMIC CHIP
0.022uF
10%
25V
C446
1-163-037-11 CERAMIC CHIP
0.022uF
10%
25V
C501
1-163-021-91 CERAMIC CHIP
0.01uF
10%
50V
C502
1-162-568-11 CERAMIC CHIP
0.33uF
10%
16V
C503
1-163-239-11 CERAMIC CHIP
33PF
5%
50V
C504
1-163-231-11 CERAMIC CHIP
15PF
5%
50V
C505
1-164-346-11 CERAMIC CHIP
1uF
16V
C506
1-163-038-91 CERAMIC CHIP
0.1uF
25V
C507
1-163-009-11 CERAMIC CHIP
0.001uF
10%
50V
C508
1-163-125-00 CERAMIC CHIP
220PF
5%
50V
C601
1-164-346-11 CERAMIC CHIP
1uF
16V
C602
1-163-227-11 CERAMIC CHIP
10PF
0.5PF
50V
C603
1-126-157-11 ELECT
10uF
20%
16V
C604
1-163-038-91 CERAMIC CHIP
0.1uF
25V
C605
1-104-483-11 ELECT
470uF
20%
4V
C606
1-163-141-00 CERAMIC CHIP
0.001uF
5%
50V
C607
1-163-141-00 CERAMIC CHIP
0.001uF
5%
50V
C701
1-163-009-11 CERAMIC CHIP
0.001uF
10%
50V
C702
1-163-009-11 CERAMIC CHIP
0.001uF
10%
50V
C703
1-163-009-11 CERAMIC CHIP
0.001uF
10%
50V
C704
1-163-009-11 CERAMIC CHIP
0.001uF
10%
50V
C705
1-163-021-91 CERAMIC CHIP
0.01uF
10%
50V
C706
1-163-021-91 CERAMIC CHIP
0.01uF
10%
50V
C707
1-135-151-21 TANTALUM CHIP 4.7uF
20%
4V
C708
1-163-021-91 CERAMIC CHIP
0.01uF
10%
50V
C709
1-135-151-21 TANTALUM CHIP 4.7uF
20%
4V
C710
1-163-021-91 CERAMIC CHIP
0.01uF
10%
50V
C711
1-163-021-91 CERAMIC CHIP
0.01uF
10%
50V
< FILTER >
CF401
1-577-572-11 FILTER, CERAMIC
CF402
1-577-574-11 FILTER, CERAMIC
CF403
1-577-574-11 FILTER, CERAMIC
MAIN
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