Sanyo 111376316, Руководство по обслуживанию

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Service Adjustments
Important Notice:
Do not attempt to adjust service adjustments not listed below otherwise it may cause loss of performance and for
correct operation.
AGC Adjustment
1. Receive PAL-N colour bar pattern.
(ANT Input Level: 62dB µ V 75 ohms terminated)
2. Connect a Digital Volt Meter to Tuner-AGC terminal
(TP-A) and the ground.
3. Enter the Service Mode, and select item TDA9885
with
▲
or
▼
key.
4. Select item Write 1 of TDA9885 with
▲
or
▼
key.
5. Adjust voltage of Tuner-AGC to become 3.2V±0.3V DC
with or - key.
White Balance Adjustment
[ Setting ]
1. Connect a color-bar generator to the external
(composite) video input terminal (AV1 or AV3), and
input a White Pattern (90%).
2. Set the television to following conditions:
Picture Mode: Dynamic
Pre-heating Time: More than 10 minutes
[ White Balance Adjustment ]
1. Enter the Service Mode, and select item “Other”
with
▲
or
▼
key, then press the or - key
to enter the Sub menu.
Adjustment Item:
No. 55 White Balance R
No. 56 White Balance G
No. 57 White Balance B
2. Set 55 White BalR, 56 White BalG and 57 White BalB
value to “32” with or - key.
TDA9885 FE
Write 1 10
Data Value
Item No.
Black Balance Adjustment
[ Setting ]
1. Connect a color-bar generator to the external
(composite) video input terminal (AV1 or AV3 terminal),
and input a dark gray pattern (10% white).
2. Set the television to following conditions:
Picture Mode: Dynamic
Pre-heating Time: More than 10 minutes
[ Black Balance Adjustment ]
1. Enter the Service Mode, and select item “Other”
with
▲
or
▼
key, then press the or - key to
enter the Sub menu.
Adjustment Item:
No. 58 Black Balance R
No. 59 Black Balance G
No. 60 Black Balance B
2. Set 58 Black BalR, 59 Black BalG and 60 Black
BalB value to “255” with or - key.
3. Decide one item in three items to a fixed value
(Example, let 58 Black BalR be fixed value), select
item of other 2 colors (Example, 59 Black BalG or
60 Black BalB) with
▲
or
▼
key, and adjust to
produce a normal black and white picture in dark gray
areas with or - key.
(Note: At this time, Adjust the other 2 colors data less
than fixed data.)
After adjustment, confirm white balance again by
normal picture.
58 Black BalR 255
Data Value
Item No.
Item
55 White BalR 32
Data Value
Item No.
Item
3. Decide one item in three items to a fixed value
(Example, let 55 White BalR be fixed value), select
item of other 2 colors (Example, 56 White BalG or 57
White BalB) with
▲
or
▼
key, and adjust to produce a
normal black and white picture in highlight areas with
or - key.
(Note: At this time, Adjust the other 2 colors data less
than fixed data.)
After adjustment, confirm white balance again by
normal picture.