Sony FDL-PT222 Service Manual ▷ View online
– 9 –
– 10 –
SECTION 4
DIAGRAMS
4-1. BLOCK DIAGRAM (1)
BS
COMPOSITION
28
SELECT
BAND
BS
U/V
CONTROL
TUNING
BAND
SELECT
BT
26
GEN.
BT
RETURN
AUTO
INITIAL
SET
CHARGE/
DISCHARGE
CIRCUIT
DEFEAT
OUTPUT
DEFECT
SIGNAL
3
HP
14
1
4
5
COMPARATOR
6
10
DEF
FH
H SYNC
AFC
SUD
CS
18
UP
UA
22
OUTPUT
BAR
V
30
U
31
BAR
DISPLAY
POSITION
ADJUST
RV001
LB
HB
UB
MB
TU
Q001
BUFFER
Q002
AMP
FILTER
SWF201
IF AMP
Q201
IF
AGC
TU101
TUNER
TUNER
6
7
3
IF AMP
IF
IF
AGC OUT
AGC DL
AGC IF
4
RV201
DET
VIDEO
20
19
REF COIL
REF COIL
AUDIO
13
BUFFER
FM
DET
14
E-VDL
15
FM DET
16
LIM
INV.
Q205
FH SWITCH
Q005
CF202
LIMITER
10
SIF
DET OUT
18
SEP
SYNC
AFT
SYNC
23
AFT
17
VIDEO
AMP
SYNC SEP
22
AFT COIL
21
AFT
Q007
Q003,004
INV., SWITCH
CF203
CF201
Q202
BUFFER
LLD
2
3
5
9
7
8
IND
H SYNC
VIDEO
AUDIO
H.P
VHF
CN201
T1 (TUNER, VIF/SIF DET)
IC001
TUNER CONTROOL
IC201 VIF/SIF DET
UB
12
+4.5V
UP DOWN SW
11
20
19
RV002
V LOW
23
24
RV004
V HI
VLP
VHP
VHA
VLA
RF AGC
TO
A BOARD
CN502
AFC SWITCH
IF
IF
IF
IF
VIDEO
AUDIO
AUDIO
AUDIO
27
SWITCH
Q010-012
J101
EXT ANT
ANT
CHANNEL DISPLAY
POSITION CH13
CHANNEL DISPLAY
POSITION CH1
CHANNEL DISPLAY
POSITION CH12
T101
BALUN
STRAP
ANTENNA
– 12 –
– 11 –
4-2. BLOCK DIAGRAM (2)
S601
(1/2)
S001
S002
8
7
9
5
3
2
IND
H SYNC
VIDEO
AUDIO
H.P
VHF
CN502
RV501
2
3
VCC
6
7
V+
J501
SPEAKER
CN601
CN301
VHF
H.P
VIDEO
H SYNC
IND
2
3
9
7
8
8
7
9
3
2
(2/2)
S601
F601
9
8
4
PORT SWITCH
Q601-603
RV601
+4.5V
3
7
6
1
T601
+30V
+4.5V
Q401
BUFFER
+30V
11
11
BRT
RV450
5
1
4
2
3
DRIVE
Q701
Q702
8
6
T701
FR701
LCD
BACK LIGHT
DC IN 4.5V
J701
BATTERY
A (POWER SUPPLY, LCD BACK LIGHT, HEADPHONE AMP)
BUFFER
Q403
40
37
R2
HSO
V IN
34
Q303
SYNC. SEP.
35 H IN
IND SWITCH
Q408
38 INB
R
40
Q302
INV.
5
1
2
9
19
10
21
11
23
12
RV301
X301
3.58MHz
VIDEO IN
SYNC SEP
TINT CONT
VCXO IN
VCXO OUT
HD IN
CONTRAST
R OUT
G OUT
B OUT
IC301 Y/C JUNGLE
IC501 HEADPHONE AMP
27
29
28
23
B IN
G IN
R IN
AUTO CB
1
24
40
2
3
4
5
6
7
8
9
CP
CL2
CLB
CLA
D2
D3
D4
D1
BESTB
22
38
21
37
20
36
12
28
11
27
10
26
9
25
13
29
2
6
23
39
4
3
TPR2
TPR1
VM
VM
VM
VSS
17
18
33
34
16
32
15
31
VDG
VDR
VDG
VDR
VDB
VDB
VS2
VS2
BUFFER
Q402
Q406
SWITCH
VM BUFFER
Q407
13
TPR1
12
TPR1B
DB 10
XTD
XT1
4.5MHz
X401
21
20
30
TGL VL
RV402
IC401
MONITOR CONTROL
B (Y/C JUNGLE, MONITOR CONTROL)
LCD
MONITOR
CP
CP
CL2
CL2
CLB
CLB
CLA
CLA
D2
D2
D3
D3
D4
D1
D1
RES
RES
UB
12
UP DOWN SW 11
+
D701
-
+4.5V
+4.5V
TO
T1 BOARD
CN201
OFF
VHF
UHF
2
DRIVE
CH
BRT
CONTRAST
TINT
VIDEO
AUDIO
VIDEO
VIDEO
VOL
OFF
VHF
UHF
AUDIO
AUDIO
– 13 –
– 14 –
MEMO
4-3. CIRCUIT BOARDS LOCATION
4-4. PRINTED WIRING BOARDS AND
SCHEMATIC DIAGRAMS
Note:
• Capacitors without voltage indication are all 50V.
• All resistors are in ohms.
• Capacitors without voltage indication are all 50V.
• All resistors are in ohms.
k
Ω
=1000
Ω
, M
Ω
=1000k
Ω
• Indication of resistance, which dose not have one for rating electrical power, is
as follows.
Pitch : 5mm
Rating electrical power :
1
/
4
W
•
: nonflammable resistor.
•
: fusible resistor.
•
: internal component.
•
: panel designation and adjustment for repair.
• All variable and adjustable resistors have characteristic curve B, unless otherwise
noted.
•
: earth-chassis.
• As to the voltage volue shown by the semiconductors on the Shematic Diagram,
see the another list
• Readings are taken with a color-bar signal input.
• Readings are taken with a 10M
• Readings are taken with a 10M
Ω
digital multimeter.
• Voltages are dc with respect to ground unless otherwise noted.
• Voltage variations may be noted due to normal production tolerances.
• All voltages are in V.
• Voltage variations may be noted due to normal production tolerances.
• All voltages are in V.
• Circled numbers are waveform references.
•
: B+ bus.
•
: B– bus.
•
: signal path.
Reference information
RESISTOR
RESISTOR
: RN
METAL FILM
: RC
SOLID
: FPRD NONFLAMMABLE CARBON
: FUSE NONFLAMMABLE FUSIBLE
: RW
: FUSE NONFLAMMABLE FUSIBLE
: RW
NONFLAMMABLE WIREWOUND
: RS
NONFLAMMABLE METAL OXIDE
: RB
NONFLAMMABLE CEMENT
:
ADJUSTMENT RESISTOR
COIL
: LF-8L MICRO INDUCTOR
CAPACITOR : TA
TANTALUM
: PS
STYROL
: PP
POLYPROPYLENE
: PT
MYLAR
: MPS
METALIZED POLYESTER
: MPP
METALIZED POLYPROPYLENE
: ALB
BIPOLAR
: ALT
HIGH TEMPERATURE
: ALR
HIGH RIPPLE
Note: The symbol
display is on the component slde.
The components identified by shading and mark
are critical for safety. Replace only with part number
specified.
are critical for safety. Replace only with part number
specified.
The symbol
indicate fast operating fuse.
Replace only with fuse of same rating as maked.
G
D
S
B1 E1
C2
B2 C1
E2
2
3
4
5
6
7
8
9
0
!¡
!™
!¢
!§
!¶
!•
–
1
G
D
S
B2 E2
C1
B1 C2
E1
B2 E2
C1
B1 C2
E1
B2 E2
C1
B1 C2
E1
!ª
B1 E1
E2
C1(B2)
C2
@º
B1
E2
C1
C2
@™
@£
(B2)
E1
(B2)
E1
E2
B1
C2
C1
@¡
B1
E1
C2
B2
C1
E2
G
S
S
D
G
D
B1
E1
C2
B2
C1
E2
B1
E2
C2
C1(B2)
E2
B1
C1
C2
E1(B2)
C2
B1
C1
E2
E1(B2)
C2
B1
C1
E2
B2
E1
C2
Ver.1.5
Transistor
(FET)
(FET)
Transistor
Transistor
Transistor
Transistor
Transistor
Transistor
Transistor
Transistor
Transistor
Discrete semiconductot
(Chip semiconductors that are not actually used are included.)
Diode
Diode
Diode
Diode
Diode
Diode
Diode
Diode
Diode
Diode
Source
Source
Anode
Anode
(NC)
(NC)
Cathode
Anode
Cathode
Common
Cathode
Cathode
Common
Cathode
Cathode
Common
Common
Common
Common
Cathode
Anode
Base
Emitter
Collector
Base
Emitter
Collector
Drain
Gate
Gate
Drain
Device
Printed symbol
Terminal name
Circuit
Terminal name of semiconductors in silk screen
printed circuit (
*
)
Anode
Anode
Anode
Cathode
Anode
Anode
Cathode
!£
Transistor
(FET)
(FET)
Transistor
(FET)
(FET)
!∞
Emitter
Collector
Base
Transistor
Source
Gate
Drain
Cathode
Anode
Anode
Cathode
Anode
Anode
A
B
T1
– 16 –
– 15 –
4.5V
2
30V
30V
4.5V
4.5V
4.5V
4.5V
3
1
IF
IF
IF
IF
SIF
30V
4.5V
IF
SIF
VIDEO
VIDEO
VIDEO
IF
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
1
2
3
4
5
6
7
8
10
9
11
12
13
14
15
16
17
18
19
20
21
22
23
24
1
2
3
4
5
6
7
8
9
10
11
12
IF
MB
LB
HB
UB
TU
AGC
ANT
G
SWF
I
G
O
O
3
2
1
6
4
1
2
3
4
6
IC001
C001
R016
R017
R011
R005
C003
RV004
C008
C007
R004
R009
Q001
R008
RV001
C005
R014
R018
R029
IC201
R209
R210
R205
C206
R208
R221
C213
C215
C212
RV201
C226
C225
R223
R228
R225
C222
R235
C218
R230
C209
C211
R220
Q201
R216
R219
R218
C210
Q202
R201
R047
R046
D001
R241
R242
R243
C011
Q203
C004
C015
Q003
Q004
R021
Q002
R240
C234
C235
R012
Q011
R032
R001
C002
L201
C006
C014
R010
R214
R215
R231
C236
Q007
C105
C101
J101
C016
C202
C205
R226
C224
C223
C219
C012
C203
R030
CN201
R031
C204
RV002
R002
R003
D002
C021
CF201
C207
CF202
R213
R212
R206
CF203
R229
L206
R217
R013
TU101
L205
SWF201
T201
T202
R202
R224
R101
4.7
25V
:7L
47
6.3V
:7L
560p
CH:CHIP
47
6.3V
:7L
0.01
B:CHIP
0.1
25V
25V
F:CHIP
0.001
B:CHIP
0.47
25V
F:CHIP
10
16V
:7L
0.1
25V F:CHIP
100p
CH:CHIP
27p
CH:CHIP
0.01
B:CHIP
0.01
B:CHIP
0.01
B:CHIP
0.01
B:CHIP
0.01
B:CHIP
47
6.3V
:7L
0.01
B:CHIP
10
16V
:7L
0.01
B:CHIP
0.01
B:CHIP
0.01
B:CHIP
0.001
B:CHIP
22
6.3V
:7L
MA152WK-TX
AN5707NFAP
M51348AFP
15
µ
H
:FR-CP
2SB709A-R
XN4601
UN2210-TX
UN2110-TX
XN4215
UN211D-TX
2SC3837KT146Q
2SB709A-R
UN2210
100k
:CHIP
47k
:CHIP
150k
:CHIP
270k
:RN-CP
33k
:RN-CP
2.2
:CHIP
10k
:CHIP
330k
:CHIP
39k
:CHIP
39k
:CHIP
18k :CHIP
100k
:CHIP
47k
:CHIP
100k
:CHIP
10k
:CHIP
470
:CHIP
2.2k
:CHIP
680
:CHIP
100k
:CHIP
680 :CHIP
1.8k
:CHIP
33k
:CHIP
1k
:CHIP
10
:CHIP
1.2k
:CHIP
68
:CHIP
390
:CHIP
47
:CHIP
5.6k
:CHIP
1k
:CHIP
4.7k
:CHIP
10k
:CHIP
10
:CHIP
10
:CHIP
10k
:CHIP
180k
:CHIP
470
:CHIP
22k
:CHIP
470p
B:CHIP
1/16V
F:CHIP
0.1
25V
F:CHIP
0.01
B:CHIP
10
16V
:7L
3.3k
:CHIP
0.01
B:CHIP
1
16V
F:CHIP
47k
:CHIP
100k
:CHIP
1k
:CHIP
0.1
25V
F:CHIP
3.3
1
0
:CHIP
82k
:CHIP
0.001
B:CHIP
47k
:CHIP
100k
:CHIP
68k
:CHIP
12P
MA157-TX
0.1
F:CHIP
TPS4.5MC
10p
CH:CHIP
CDA4.5MC
10k
:CHIP
:CHIP
680
:CHIP
1.8k
:CHIP
SFSL4.5MDB
8.2k
:CHIP
:FR-CP
3.3k
:CHIP
56k :CHIP
0.82
µ
H
:FR-CP
F1248
45.75MHZ
45.75MHZ
220
:CHIP
1.5k
:CHIP
100
:CHIP
2
1
3
1
2
3
4
6
5
1
2
3
4
5
6
1
3
2
4
2
1
3
2
1
3
1
2
3
BRT
UP
VHP
VLP
CON
UA
VHA
VLA
VCC
UH
SUD
AFC
HSYNC
H.P
M.M
FH
NC
CHCAL
STOP
MANU
CHA
CS
NC
NC
BT
U/V
BS
GND
V OUT
U OUT
NC
FILTER OUT
FILTER IN
(VIF)
(SIF)
(SIF)
AGC
AGC
RF AGC
OUT
RF AGC DELAY
VCC
IF IN
IF IN
(VIF)
GND
VCC
SIF IN
DC F/B
GND
IF AGC
SYNC OUT
SYNC SEP
AFT COIL
REF COIL
REF COIL
DET OUT
AFT OUT
LIMITER
FM DETIN
E-VDL
AUDIO
ADJ
OUT
OUT
DEF
VIDEO
AUDIO
A.GND
AFT
LLD
T1
H.P
AUDIO
D.GND
4.5V
VIDEO
A.GND
H.SYNC
VHF
IND
UP DOWN SW
30V
UB
ULOW
VLOW
VHI
TUNER,
VIF, SIF DET
VIF, SIF DET
B-¥SS10904.<U..>-T1.
EXT ANT
1k
R233
100
:CHIP
C228
0.01
B:CHIP
C229
0.01
B:CHIP
R234
1.2k
:CHIP
R022
27k
:CHIP
R023
0
:CHIP
1
2
3
4
5
Q010
XN1115
Q012
XN2210
1
2
3
4
6
T101
STRAP
ANTENNA
TO
A BOARD
CN602
1
µ
H
1
A
B
C
D
E
F
G
2
11
10
9
8
7
6
5
4
3
3.4Vp-p (H)
1
3.7Vp-p (H)
2
0.9Vp-p (H)
3
• T1 BOARD WAVEFORMS
INPUT
CONTROL
AUTO
RETURN
PLUSE WIDTH
SET
SIGNAL
DET
DEFEAT
OUT
BT GENERATOR
BAR DISPLAY
POSITION
ADJUST
CHARGE/
DISCHAGE
DISCHAGE
INITIAL RESET
COMPARATOR
BAR OUTPUT
BS ADD
BAND
SW
TUNING
CONTROL
B
STOP
5
3
2
4
1
6
AFC
H.P.
M.M.
H.syn
FH
SUD
13
14
15
17
STOP
DEF
UP
DN
DN
CHCAL
7
27
8
L/H
U/V
23
24
VHA
VLA
Vcc 5V
BRT
28 BS
30 V OUT
31 U OUT
20 VLP
18 UP
19 VHP
21 CON
22 UA
10
C.S.
12
11
CHA
MANU
26
32
26
25
16
9
BT
NC
NC
NC
NC
29
GND
T1 BOARD : IC001 AN5707NFAP
GND (SIF)
DC F/B
SIF IN
Vcc (SIF)
GND (VIF)
IF IN
IF IN
Vcc (VIF)
RF AGC DELAY
RF AGC OUT
AGC FILTER
II
AGC FILTER
I
13
AUDIO OUT
14
E-VDL
15
FM DET IN
16
LIMITER OUT
17
AFT OUT
18
VIDEO OUT
19
REF COIL
20
REF COIL
21
AFT COIL
22
SYNC SEP IN
23
SYNC OUT
24
12
11
10
9
8
7
6
5
4
3
2
1
IF AGC ADJ
BUFFER
IF AGC
DET
VIDEO AMP
AFT
1st
Amp
AGC
2nd
Amp
VIDEO
DET
SYNC
SEP
FM DET
LIMITER
T1 BOARD : IC201 M51348AFP
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