Sanyo 28DN1 - Page 8

CIRCUIT ALIGNMENT
10kQ
as 0. ae
VIF alignment Input probe Output probe
ser a
DC 15.5V C644 + By using T141, adjust "P" to
AGC voltage (4.3-4.5V) 1C201-pin48 be maximum amplitude.
Output probe 1C201-pin45
(Side b)
Input probe 1C201-pin7
39.5MHz
20dB
Marker frequency
Sweep ATT
OdB=176mVrms/75
Trap alignment
sera ee
DC
15.5V
C644
+
By
using
T101,
adjust
"A"
to
Output
probe
Tuner
IF
be
minimum
amplitude.
(Side a)
Q101-C
Input probe
Marker frequency
Sweep ATT
OdB=176mVrms/75
41.5MHz
11dB
SIF alignment
SETTING Adjustment
Waveform
DC 12V 1IC3801-pin11 1. Adjust AGC voltage to be
AGC voltage 1C3801-pin3 "A" = 0.5Vp-p. nan
Output probe 1IC3801-pin1 2. By using T3801, adjust "P" p
(Side b) to be equal centre line.
Input probe 1IC3801-pin12
Sweep ATT 10dB
Marker Frequency 38.5MHz
F2VCV