Hitachi TRK-3D70 - Page 7

TRK-3D70/3D75
ADJUSTMENT
ADJUSTMENT PARTS LOCATION
REGLAGE DE LOCATION DES PIECES
MA P.W.B.
mee
$304
AIF--A-B-C CD/LINE IN JACK
FM --ST-ST-MONO
AFC--ON-OFF-OFF R209
C214
[ono fy
P5
AT:
‘0352
7203
(S]ia
1C3014
io 4
8 @arso1
TP5
FUNCTION
CD/LINE SH/SWe
L152(E,E(BS))
L153(W,AU,H,HC)
1. Radio Section
FM Section
Measuring Instrument and Connection Genescope
or Signal
Generator
Frequency
Dial
Pointer Adjust Reading
Position
Adjustment
Item Measuring Instrument Input Terminal | Output
Terminal
Turn T202 fully counterclockwise
FM IF r
Note 1
TP 10.7 MH Highest :
2 Zz ighes Note 2
4
@ Genescope
S-Curve (10.7 MHz)
See 1-2 FM covering (page 9)
For E,
— (BS}
FM OSC i
(Covering) @ FM signal generator iN Bie 87 MHz Lowest L102
(400 Hz, 30% dev) thru ummy +
e
Oscilloscope
antenna)
109
MHz
{
Highest
CT102
@ VIVM (Note 3) [ Repeat steps (1) and (2)
90 MHz 90 MHz | L101
~ M
FM
ANT.
106MHz
|106MHz|
Clio).
|_
"4
(Tracking}
oe
a
Repeat steps (1) and (2)
Connect a 10uf 25V |
FM MPX electrolytic capacitor » 738 kHz
(Multiplex) @ Frequency counter between the No. 1 pin RT301 4+ 50 Hz
free run of IC301 and the (NJote 4)
ground
2
=
Bo
5=
wr