Panasonic CT-24SX11CE AP367 Service Manual - Page 15

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Chassis Service Adjustment Procedures

All service adjustments are factory preset and should not require adjustment unless controls and/or
associated components are replaced.
Note:
Connect the (-) lead of the voltmeter to the appropriate ground. Use heat sink when the HOT ground symbol
( ) is used. Otherwise, use COLD ground (
C584
-
IC6501
IC101
IC2301
T
U
IC3001
N
E
C 003
R
-
A/V REAR INPUTS
TP
8
1
140.0V B+ Voltage Confirmation
1. Set the Bright and the Picture to Minimum by
using the Picture Menu.
2. Connect the DVM between
ground (
). (In P-Board).
3. Confirm that B+ voltage is 140.0V ± 1.5V. This
voltage supplies B+ to the Horizontal Output &
Flyback circuits.
P-Board B+ Voltages
120V AC line input. Set the Bright and the Picture to
Minimum by using the Picture Menu. Use cold ground
(
) for the (-) lead of the DVM.
.
LOCATION
(P-Board)
TPP12
B+
140.0V ± 1.5V
STBY 12
TPP11
13.0V ± 2V
TPP10
SOUND
33.0V ± 5V
For Sound GND use connector P1-pin 5
) — Tuner shield.
A-BOARD
C 583
-
IC001
C047
-
Q551
TPD3
TPD9
IC451
TPD8
(+ side) and cold
TPP12
VOLTAGE
VOLTAGE
Board
Board
connected
w/o connect
90.0V ± 9V
8.2V ± 1V
25.0V ± 3V
P-BOARD
IC4802
TPD11
TPD12
TPD7
A-Board B+ Voltages
120V AC line input. Set the Bright and the Picture to
Minimum by using the Picture Menu. Use cold ground
(
) for the (-) lead of the DVM.
LOCATION (A-Board)
C584 (+)
C583 (+)
TPD9
TPD3
TPD8
C047 (+)
TPD7
Adjust Picture Menu for normalized video adjustments.
- 15 -
IC4801
TPD10
T801
Q801
VOLTAGE
MAIN 9
9.0V ± 0.5V
MAIN 5
5.0V ± 0.3V
MAIN -15
-15V ± 2V
MAIN 15
15V ± 2V
MAIN 7.5
7.1V ± 1.0V
ST-BY
3.3V ± 0.2V
MAIN 220
220V ± 9.0V