Cautions For Adjustments; Before Adjustments; How To Create The Test Mode; Sled Motor Check - Sony CFD-K10 Service Manual

CFD-KTO
Adjustment Location : tuner board
L4
AM FREQUENCY
COVERAGE ADJ
AM TRACKING
FM FREQUENCY
ADJ
COVERAGE
ADJ
digital
voltmêtêr
R V l
FM STEREO
VCO ADJ
a
w
&
Cautions for Adjustments
1. Be sure to activate the test mode before making adjust-
ments.
After the adjustments are complete, be sure to release the
system from the test mode.
2. Perform the adjustments in the order that they are
described below.
3. The disc should be used only when the "YEDS-18.
Part No.: 3-702-101-01
is soecified.
Before Adjustments
Place the set into the test mode and perform the following
checks. If any fault is found, repair it.
How to Create the Test tlode
1. Short between JW858 and JW859 (TP80r pin@ and pin
@) on the control board.
Turn ON the PO\4ER.
Set the function to CD.
When a test pattern begins to flicker on the LED display,
remove the short from JWB5S and JWSS9.
I FM srERÊo)
\ VCO ADJ I
lrequêncy
counter
o Sled motor check
Procedure :
1. First, press [ | key. (The test pattern on the LED stops
flickering and the BTL MUTE is cleared.)
2. Press >>l /K< keys and verify that the optical pick-up
moves from the innermost perimeter to the outermost
perimeter then to the innermost perimeter smoothly with
no hesitations or abnormal sound.
)) : Moves the pick-up to the outer perimeter.
K{ : Moves the pick.up to the inner perimeter.
. Focu s search check
Procedure :
1. Press D key. (The focus search is continuously made.)
2. Observe the objective lens of ohe optical pick.up
and
verify that the objective lens moves vertically smoothly
without no hesitations or abnormal sound.
3. Press ! key. (The focus search stops and the table
continues to be rotating.)
4. Press n key again and hold down it to stop the
turn
table.
(Caution) If any abnormality (such as run away)
is caused
by pressing a wrong key, turn OFF the pOWER and retrv
from creating the test mode.
L .
21
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