No. 52007
AV-56WP30
33
ADJUSTMENT
CHECK ITEMS
Item
Measuring
instrument
Test point
Ad justment part
Description
B1
POWER SUPPLY
check
Signal generator
DC voltmeter
S1 connector
5 pin:TP-91
1 pin:TP-E
(
#
)
1. Receive a NTSC black & white signal (c olor off).
2. Connect the DC voltmeter to TP-91 (S1 connector 5
pin) and TP-E(
#
#
#
#
) (S1 c onnector 1 pin).
3. Confirm that the voltage is DC140V
±
2V.
HIGH VOLT AGE
check
Signal generator
High voltage
meter
CRT Anode
1. Receive a NTSC whole blac k signal.
2. Connect the high voltage meter between CRT anode
and GND.
3. Check that the high voltage DC 31.0kV ±1.0kV.
X-RAY
PROTECTOR
check
Resistor
6.8k
Ω
Ω
Ω
Ω
1/6W
±
±
±
±
5%
S1 connector
2 pin:X-Ray2
3 pin:X-Ray1
1. Receive
any broadc ast.
2. Connect resistor 6.8k
Ω
(1/6W,
±
5%) between 2 pin &
3 pin of the c onnector S1.
3. Confirm that the X-RAY protector func tions operated.
HORIZONTAL FREQUENCY ADJUSTMENT
Item
Measuring
instrument
Test point
Ad justment part
Description
H. FREQUENCY
adjustment
Signal
generator
Remote
control unit
D15 : H. FREQ.
D19 : DEF. RST
1. Receive
any broadc ast.
2. Pres et from 0 to 1 for D19 <DEF. RST
>
.
3. While observing the screen, adjust the D15
<
H. FREQ
>
so that an optimum horizontal synchronization is
obtained.
4. After adjustment, to pres et from 1 to 0 for D19 <DEF .
RST
>
.
5. Press the MUTING key to memorize the set value.
Summary of Contents for AV-56WP30
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