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PR-B2810-A
9-1. VSOP
ADJUSTMENT
8. TRKG
ERROR
10. TRKG
BALANCE
LOOP
18. 1H DLYED
=
GAIN
FOCS
BRIDGE
BALANCE
VIDEO
|
|
34,2828 OES
BRIDO
LEVEL __
11. FOCS LOOP GAIN
6.FG
LEVEL
(о?
15. УСОМ
FREQ.
1
922
2. TRKG
MIRROR
12. FOCS LOOP OFFSET
ES
BIAS __.
401
527%
$0401
° 19. DOS
TIMING
17, VIDEO OUTPUT.
-
214. TRKGRN MIRROR
STOPPER
LEVEL
7
Mis
9. ТАКО LOOP OFFSET
pa TR
emu]
у,
6
1. TANG
MIRROR
BIAS
pasaba
дав аа
16 TANG MIRROR
Das ROPEER: e —&
21. SPDL LOOP
__ OFFSET _,
EQUIPMENTS
AND
TOOLS
PRIOR
TO
VSOP
ADJUSTMENT
* Oscilloscope
e Remove the bottom cover.
* Monitor TV
e Using the 30° player stand, raise the front of the
* Test disc B1
set.
e AF oscillator
• Remove
the 4 screws
оп
УЗОР,
then connect
® Frequency counter
extension cables to the test points.
e 30° player stand
è Install the test disc B1.
* Extension cables
e Turn
on and hold the inter-lock switch and the
® Low pass filter etc.
lid switch.
e Plug the power cord into a 120V /60Hz outlet.
TEST POINT
UM
TP
ТР
1 0: 1 probes are
used
in these adjustments,
Scope ranges
у
*
are
shown
with
the probe
in use.
However.
it тау
he
3 focus bridge balance
2/6
playback H (PB H)
6 osc input (TRKG)
5/6
п.с.
LSPS
BOARD
WHILE
WORKING
WITH
THE
7 tracking return
6/6
f.g. level (FG)
PLAYER
TO
PREVENT
POSSIBILITY
OF
EX-
8 tracking loop control
POSING
YOURSELF
TO
DANGEROUS
VOLT-
(O/L: connect to GND)
AGES:
9 GND
10 focus drive
11 RF
12 tangential return
53
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