Diagrams; Block Diagram - Sony FDL-PT22/JE Service Manual

SECTION 4

DIAGRAMS

4-1. BLOCK DIAGRAM

IF AMP FILTER
IF
Q201 SWF201
TU101
AGC
TUNER
RF IN
IC001 TUNER CONTROL
3
SW BS BS
BS 28
Q006 COMPOSITION
DEFEAT
OUTPUT
TUNING
CONTROL
U/V BAND
VB 27
SELECT
SIGNAL
DEFECT
UB
BAND
SELECT
AUTO H SYNC
+4.5V RETURN
MB COMPARATOR
CHARGE/
BUFFER AMP BT BT INITIAL
TV 26 DISCHARGE
Q001 Q002 GEN. SET
CIRCUIT
RV001 UP
18 BAR
U LOW
DISPLAY
RV003 UA POSITION BA R
22
UA ADJUST OUTPUT
20 VLP
RV002
19 VHP
V LOW
23 VHA
RV004
24 VLA
V HI
T(TUNER,VIF/SIF DET,TUNING)
– 11 –
CN201 CN502
12 UB 12
2 VHF 2
3 H.P 3
IC201 VIF/SIF DET
IF
6
IF
7 IF AMP
LLD
REF COIL
AGC OUT 19
VIDEO
3 AGC IF REF COIL
DET 20
AGC DL
RV201 4
DEF
14
FH E-VDL AUDIO
FH SW INV
1 14 BUFFER 13 5 AUDIO 5
Q005 Q205
FM DET
FM
15
DET
LIM SIF
16 LIMITER 10
CF202
SYNC SYNC
4 23 CF203
SEP
AFC AFT DET OUT
VIDEO BUFFER
5 17 AFT 18 9 VIDEO 9
AMP Q202
Q007
AFC SW
AFT
AFT COIL SYNC SEP
21 22
SUD
6 CF201
7 H SYNC 7
CS 8 IND 8
INV/SW
10
Q003,004
V
30 11 UP DOWN SW 11
U
31
BATTERY
J701
DC IN
A(DC IN,B/L INV)
– 12 –
CN601 CN301
2 VHF 2
3 H.P 3
S601
+4.5V
(1/2)
IC501 HP AMP
VCC
3 J501
6
PHONES
RV501
2
SPEAKER
V+
7
9 VIDEO 9
7 H SYNC 7
8 IND 8
IC301 Y/C/J
T601
9 1 +30V
1 VIDEO IN HD IN
S601 PORT SW
8 6 +4.5V
(2/2) F601 Q601-603
2 SYNC SEP CONTRAST
RV601 7
19 TINT CONT R OUT
PORT SW
RV301
Q610
4 3
+4.5V
21 VCXO IN G OUT
23 VCXO OUT B OUT
S001 S002
X301
DOWN UP 3.58MHz
BUFFER
+30V
Q401
11 BRT 11
RV450
T701
3
DRIVE
2
Q701
D701
8
DRIVE
4
Q702
BACK
LIGHT
1
6
5
B(HP AMP,MONITOR CONTROL,CHROMA)
– 13 –
IC401
MONITER CONTROL
BUFFER CP 24
40 R2 CP 1
Q403 CP 40
37 HSO
CL2 22
CL2 2
CL2 38
CLB 21
CLB 3
CLB 37
CLA 20
CLA 4
CLA 36
D2 12
D2 5
D2 28
D3 11
D3 6
D3 27
10
D4 7
D4 26
D1 9
D1 8
D1 25
RES 13
BESTB 9
RES 29
TPR2 2
TPR1B 12 VM BUFFER
TPR1 6
Q407
TPR1 13
VM 23
SYNC SEP
34 V IN
Q303
VM 39
LCD
VM 4
MONITOR
SW VSS 3
DB 10
Q406
35 H IN
IND SW
38 INB
Q408
40 R
INV
5
Q302
9 23 AUTO CB
10 28 R IN XT1 20
X401
4.5MHz
11 29 G IN XTD 21
12 27 B IN TGL VL 30
RV402
BUFFER VDG 17
Q402 VDR 18
VDG 33
VDR 34
VDB 16
VDB 32
VS2 15
VS2 31
– 14 –