Adjustment In The Service Mode - Sanyo 29-F5BA Service Manual

Adjustment in the Service Mode

5. Adjust level of 300Hz at TP317 to become minimum by pressing the VOLUME(+ / -) button on the remote
control or TV set.
TP317 (R)
6. Select "HI SEPARATION" by pressing the CHANNEL UP/DOWN button on the remote control or TV set.
7. Adjust level of 4KHz at TP318 to become minimum by pressing the VOLUME (+/-) button on the remote
control or TV set.
TP318 (L)
8. To exit from the service mode, press the MENU button.
SAP VCO Adjustment
1. Connect a frequency counter to TP317 (C3437, + side) on the
Main Board and ground.
2. Ground TP-20 (Base of Q131) with the jumper lead. (Setting
of no signal condition.)
3. Ground TP-316 (C3411, side +) with the jumper lead through
1M Ω resistor.
4. Switch the TV set on.
5. Press and hold the MENU button on the TV set, then press
"3" button on the remote control transmitter to enter to the
Service Mode.
6. Select "SAP VCO" by pressing the CHANNEL UP/DOWN
button on the remote control or TV set.
INPUT LEVEL
STEREO VCO
FILTER
LOW SEPARATION 29
HI SEPARATION
SAP VCO
7. Adjust frequency of the counter to become 78.125KHz ±0.5KHz
by pressing the VOLUME (+/-) button on the remote control or
TV set.
8. To exit from the service mode, press the MENU button.
Minimum leakage
300Hz
INPUT LEVEL 25
STEREO VCO 23
FILTER 32
LOW SEPARATION 29
HI SEPARATION 26
SAP VCO 27
25
23
32
26
27
-14-
Minimum leakage
MAIN BOARD
TP-A
TP20
Ground with
jumper wire
TP-D
C3407
1M Ohms
Ground with jumper
lead through 1M ohms
resister.
Frequency
Counter
GND
4KHz
1H DELAY
Q111
IC201
Q243
Q242
Q261
X161
X242
KS
H-CEN
Q131
IC201
IF/VIDEO/CHROMA
IC65
Base
L171 VR191
AGC
X141
Q684
Q201
Q140
Q202
Q661
TP316
IC1101
C3411
Q861
TP317
IC3401
MTS KY
C3437
VR3
K
A
KL