Kenwood KCA-R71FM Service Manual page 5

MICROCOMPUTER'S TERMINAL DESCRIPTION
Pin No. Pin Name I/O
76 VSS -
77 EO2 O
78 EO1 O
79 TEST1 -
80 XOUT O
Instrument :
SSG, OSC (5MHz), AC VOLTMETER, PWR SUPPLY, H/UNIT, CD-CH
No. ITEM INPUT SETTINGS
L/R Balance CD-CH cignal off
1
Adj. (Tr No.29 or Pause)
1. Ref.FM 1kHz 80dBµV
Moduration
2 Stereo, CD-CH Tr No.1
level Adj.
2. D.Cont Off MOD Lv:2
(Scope Setting Condition for L/R BAL. Adj.)
1. VOLTAGE RANGE : 5mV
2. TIME/DIV : 50µs
(Before Adj.)
Terminal name
Vss Vss
NC Not used (open)
Error out Phase Detector Error output
NC Not used (pull down to GND lines.)
X-out X-tal
ADJUSTMENT
OUTPUT SETTINGS
Connect a
Oscilloscope
to Q301 Base.
Connect a
AC voltmeter
to Receiver PreOut
(After Adj.)
Fig. (a)
KCA-R71FM
Description
RECEIVER
ALIGNMENT
(MODULATOR)
POINTS
FREQ
88.3MHz VR301
88.3MHz VR302
* After Adj. The glue is applied to VR301, VR302.
Adjusted to be
min level point
Operation in HOLD
-
Hi-Z
Hi-Z
-
ALIGN FOR FIG.
Min Level (a)
Difference between
FM and a CD-CH
level is adjusted to
(-0.5±1.0dB).
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