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Service Adjustments; Av28Bh7Ees / Av28Bh7Eeb - JVC AV-28BH8ENS Service Manual

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SERVICE ADJUSTMENTS

ADJUSTMENT PREPARATION
1. You can make the necessary adjustments for this unit with
either the Remote Control Unit or With the adju stment tools
and par ts as given below.
2. Ad justment with the Remote Control Unit is made on the
basis of the initial setting values, however, the new setting
values which set the screen to its optimum condition may
differ from the initial settings.
3. Make sure that AC power is turned on c orrec tly.
4. Turn on the power for s et and test equipment before use, and
start the adjustment procedures after waiting at least 30 minutes.
5. Unless otherwise s pec ified, prepare the most suitable reception
or input signal for adjustment.
ADJUSTMENT EQUIPMENT
1. DC voltmeter (or digital voltmeter)
2. Signal generator (Pattern generator) [ PAL/SECAM/NTSC ]
3. Remote control unit
MAIN PARTS LOCATIONS
HEADPHONE J ACK
FRONT
VIDEO R
FRONT AV +
HEADPHONE JACK PWB
IC900
MICOM
TUNER
FRONT CONTROL PWB
L
AUDIO
LED REMOCON
RECEIVER
IC304
MEMORY IC
6. Never touch any adjustment parts whic h are not specified in the
list for this adjustment - variable res istors, transformers,
condensers, etc.
7. Pres etting before adjustment.
Unless otherwise spec ified in the adjustment instructions, preset
the following functions with the remote c ontrol unit:
VIDEO STATUS
TINT / COLOUR
PICTURE / BRIGHT
DETAIL
MENU
(+)
(+) (-)
(+)
(+)
B1
(Indic ated [150/115V]
on the bottom side)
No. 51967
AV28BH7ENS / AV28BH7ENB
AV28BH7EPS / AV28BH7EPB

AV28BH7EES / AV28BH7EEB

STANDARD
CENTER
(-)
(-)
(-)
(+) (-)
(+)
(+)
(+)
(-)
(-)
(-)
PROG
VOL
/Ch.
MAIN PWB
FBT
UPPER : FOCUS VR
LOWER : SCREEN VR
TOP
FRONT
9

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