Sanyo CZP2140 Service Manual page 8

AFT Adjustment
Instructions
Item
AGC Voltage Alignment Resonance Frequency Adj.
TP – P (R563)
TP-C
Tuner – TP
TP– J
TP– K
TP – S (R581 )
TP – Q (R715) through 330 S2 R.
TP – R (J412) through 820 !2 R.
—
c
o .-
:
a
c
c
8
—
c
0 .-
'4-
.-
-0
c
6
—
DC 15.5V
DC 5 – 8V (AGC)
Output Probe
Input Probe
Tuning Voltage 12V
DC15.5V
Dc 15.5V
DC 15.5V
TP – P (R563)
TP– C
Tuner – TP
TP– L
TP– K
TP – S (R581 )
TP – Q (R715) through 330 S2 R.
TP – R (J412) through 820 Q R.
20dB
1000
100mV/div
side b
/B
20 dB
lV/div
side b
not used
20mVrms (ATT20dB )
ATT
Oscilloscope Sens.
Output Probe
Dumping Resistor
SG Output
TP – D (100 Q resister)
none
u
Fix the AGC voltage when the
overall waveform level is adjustec
at 1.0 Vp-p.
Keep AGC voltage which is adjusted at
AGC voltage alignment, and adjustT131
for 38.9 MHz marker is just on the
reference line.
Adjustment
47-
38.9 MHz marker
/
eference line
Waveform
BMW+ I NtSS''GUl
+ PRCG -
+voL-
(
n
AMP
r~
Swwl
0
n 0"1 - TEzzl
T581
g
PCWER
vR710
TRANS
9 w
uzII1 -K'
0761 ~ ~
0762
. A.. .
Resonance Frequency Adj.
n
Input Probe
=
i%
10K Q
i
=0
.-
G
g
[/
~
I
PcGf-lilzl
12~ II. . ... . . . l%.
r<
TP-G
T471
F.B.T
V.ncl=hl
KDY
n
0432
How.
! –
A
HORIZ.ORIVE k -- - - - '_
cW'PUT
0431
TP.F
a
-..
IL
TRANs
H-DRIVE
,.-. -
—7—