T Board - Sony FDL-PT22/JE Service Manual

T BOARD : IC201 M51348AFP
AUDIO OUT 13 BUFFER 12 GND (SIF)
E-VDL 14 11 DC F/B
LIMITER
FM DET IN 15 10 SIF IN
FM DET
LIMITER OUT 16 9 Vcc (SIF)
AFT OUT 17 AFT VIDEO AMP 8 GND (VIF)
VIDEO OUT 18 7 IF IN
2nd 1st
Amp Amp
REF COIL 19
6 IF IN
VIDEO
DET
REF COIL 20 5 Vcc (VIF)
AFT COIL 21 4 RF AGC DELAY
AGC
SYNC SEP IN 22 3 RF AGC OUT
SYNC
SEP
SYNC OUT 23 2 AGC FILTER II
IF AGC
IF AGC ADJ 24 1 AGC FILTER I
DET
T BOARD : IC001 AN5707NFAP
STOP DEF CHCAL BRT
13 14 15 17
DEFEAT
AFC 5 COMPARATOR OUT
H.P. 3
TUNING
PLUSE WIDTH
CONTROL
SET
SIGNAL
M.M. 2
DET
UP
B STOP
DN
H.syn 4 INPUT
CONTROL
FH 1
SUD 6
AUTO
RETURN
CHARGE/
BT GENERATOR
DISCHAGE
INITIAL RESET
29 9 16 25 26 32 26 12
GND NC NC NC NC BT MANU
– 19 –
T
– T BOARD –
A
B
C
D
E
L/H U/V Vcc 5V
7 27 8
BAND
SW
BS ADD 28 BS
30 V OUT
BAR OUTPUT
31 U OUT
18 UP
BAR DISPLAY
20 VLP
19 VHP
POSITION
21 CON
ADJUST
22 UA
10 11 23 24
C.S. CHA VHA VLA
ELECTRONIC TUNER,
VIF, SIF
1 2 3 4
< Component Side >

T BOARD

DIODE
*
9
D001 E-3
7
D002 D-3
IC
IC001 E-3
IC201 C-6
TRANSISTOR
*
1
Q001 D-7
!•
Q002 D-7
1
Q003 D-6
1
Q004 E-6
!¶
Q006 C-7
Q007 D-3 1
1
Q201 C-7
1
Q202 B-6
1
Q203 D-6
VARIABLE
RESISTOR
RV001 D-3
RV002 D-3
RV004 D-4
RV201 C-3
5 6 7 8
< Conductor Side >
NOTE:
: Pattern from the side which enables seeing.
: Pattern of the rear side.
• T BOARD WAVEFORMS
1 2 3
3.4Vp-p (H) 3.7Vp-p (H) 0.9Vp-p (H)
– 20 –
9