Adjustments; Cc Cece Cece Eee Eeeeeneees - Kenwood KR-6600 Service Manual

ADJUSTMENTS
TEST EQUIPMENTS NOTE
RF signal generator ...-.... 2-0 eevee ence ences RF-SG * Tuning dial is set to the proper point corresponding to no radio stations.
Oscilloscope: oe aie Soden le Be aay oe eee eee a eee scope *RF-SG is set to the lowest response possible on oscilloscope.
i Solid state volt meter (input impedance: more thaniMQ)..SSVM "The output level of RF-SG is made a 6 dB drop by the dummy ant.
i FM stereo generator ....-... 0.2... ete eet tee MPX-SG *The input level 60 dB means 66 dB on RF-SG.
Frequency counter "Repeat TRACKING adjustment several times and confirm the recep-
Distortion meter tion of broadcasting.
*Test point is shown in the schematic. diagram.
TEST EQUIPMENTS RECEIVER OUTPUT ADJUSTMENT
CONNECTION zal SETTING SETTING INDICATOR POINTS
REMARKS
RF-SG to ANT 98 MHz({60 dB) SSVM & scope Maximum
terminal via 1kHz (Mod) 98 MHz to REC jack deflection
dummy ant. 75 kHz (Dev) (L)
Make the pointer
Tg6 A '
T meter position in the cen-
(bottom) ter of the meter
RF-SG to ANT 98 MHz (60dB) SSVM & scope Tg6 Maximum deflec-
terminal via 1kHz (Mod) to REC jack (top) tion & minimum
(L) distortion
dummy ant. 75 kHz (Dev)
98 MHz
. 1 kHz (Mod) . Confirm output
OUTPUT dittd 75 kHz (Dev) ite voltage is 700 mV
60 dB (input)
90 MHz
41 kHz (Mod)
75 kHz (Dev) Maximum
TRACKING 108 MHz deflection
1 kHz (Mod)
75 kHz (Dev)
vco preg. counteryia Counter indi-
207 ane cates 76 kHz
(Fig. 2) or SSVM to TP1
98 MHz
a MPX-SG to SSVM & scope Minimum cross-
ON RF-SG ext. to REC jack talk (Maximum
jack L or R (Select) (R or L) separation)
60 dB (Input)
f {
i ;
i
SSVM, scope &
60 dB (Input)
AM SECTION
RF-SG to ANT 1000 kHz SSVM & scope Maximum
termina! via 400 Hz, 30% (Mod) 1000 kHz to REC jack CFg4 deflection
dummy ant. 100 dB (L)
600 kHz 197
9
400 en 600 kHz Bar antenna
1400 kHz
400 Hz, 30% (Mod) 1400 kHz
100 d
'
,
' ,
t
Volt meter or
VOLUME B31-0125-05 con- Meter indicates
is its min. nected across No. VRei, 2 i
! Ss mi 6 (23) and No. 13 40 mV. (Fig. 3)
; (16) terminal of
POWER AMP.
100
$14
Tg2 Tgi
Counter
lav
IC:RC4558TA
R1:1kQ (Gain:40dB)
10kQ (Gain:20dB)