Service Mode Adjustments - Sanyo 29-F5BA Service Manual

Adjustments in the Service Mode
Since some chassis circuit adjustments are controlled by the CPU built into the chassis, adjustments can be made
by inputting data directly via the remote control handset supplied with set.
[Memory IC replacement]
Since adjustment data for the circuit is stored in the memory IC (IC802) that comes with the CPU, the initializing of
the memory IC and re-inputting of the adjustments data must be made when the memory IC is replaced.
Initializing of the Memory IC
1. Replace IC 802.
2. Switch the TV on.
3. Press and hold the MENU button on the TV set, then
press "0" button on the remote control transmitter.
MENU CHA
O-R

Service mode adjustments

To enter to the service mode, press and hold the MENU button, then press the NUMERIC button (1, 2, 3 or 4).
Each service modes are as follows;
TV set
Remote control button
Digit "1"
Digit "2"
MENU
button
Digit "3"
Digit "4"
When the memory IC is replaced, Sub-Brightness and MTS adjustments should be-adjustments according to
service mode adjustments described below.
Sub-Brightness Adjustment
NOTE: AGC and Gray Scale must be adjusted before attempting the Brightness
Level Adjustment.
1. Receiver the mono-chrome circular pattern.
2. Connect the DC voltmeter "+" lead to TP-H and "-" lead to TP-G on the main
board.
3. Press and hold the MENU button on the TV set, then press "2" button on the
remote control transmitter to enter the Service Mode.
MENU CHA
O-R
4. Adjust the voltage to become DC 750mV ± 20mV by pressing the VOLUME (+/-) button on the
remote control or TV set.
5. Press the MENU button to return to the normal TV mode.
Note: Check the brightness level in every active channels, readjust if necessary.
0
Item
3 steps picture mode normalization
Sub-Brightness/Sharpness Adjustment
Stereo Adjustment
Fine Tuning mode
SUB-BRIGHT
2
SUB-SHARPNESS
ADJUST: - /+
CHOOSE:
Initial Data is as follows;
[MTS Adjustment Data]
Adjustment Item
INPUT LEVEL
STEREO VCO
FILTER
LOW SEPARATION
HI SEPARATION
SAP VCO
[3 Steps Picture Mode Normalization Data]
COLOR
CONTRAST
BRIGHTNESS
32
31
(Service Mode)
EXIT:MENU
-11-
Initial Data
25
23
32
29
26
27
STRONG NORMAL SOFT
34 30 22
63
63 63
15 40
32
Q431
HORIZ.
DRIVE
T451
F.B.T.
FOCUS SCREEN
TP-G TP-H
DC Volt Meter
VR
V-S