Adjustment Location Of Electrical Circuit; Power Supply P.w. Board; Main P. W Board - JVC KD-A77 A Service Manual

K D-A 77 A/B/C/E/ J/U
[IV] Adjustment Location of Electrical Circuit
No.4186
Power Supply P.W. Board
Front
l]-R
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_ 1 . , , ' ' "
m ...
om"'''''"
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U
L (Turning in the direction of the arrow Increases the deflection angles.)
t
VR302 VR801
(3-R
VR701
For playback level adjustment.
\G-L
(Turning
In
the direction of the arrow increases the playback levels.)
VR803
11 _____
L _ For playback frequency response adjustment
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(Turning In the direction of the arrow Increases the signal current)
V R 7 0 3 R t l
Q-
L For ANRS adjustment at playback mode
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(Turning In the direction of the arrow Increases the ANRS gains.)
Main P. W Board
VRAOl
VR501
T.;-L VR601
G
L
For recoridng level adjustment.
·0
~
Rl
T.P-R
(Turning in the direction of the arrow in-
creases the recording levels.)
1
Front
L ] For ANAS adjustment at recording mode.
(Turning in the direction of the arrow increases the ANRS gains.)
VRBOl
(eR
VR504 VR502 VR503
((~((~G-
L
J
ero,
t -
For bias CUrrent adjustment.
(Turning in the direction of the arrOw in-
Q Q
G-
v
:
creases the bias current value.1
VR604 VR602 603
r
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R
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METAL
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