32
KEH-1800,1830
FM ADJUSTMENT
Modulation
M:MONO MOD., 400Hz 30%(22.5kHz Dev.) or 400Hz 100%(75kHz Dev.)
S:STEREO MOD., 1kHz, L or R=30%(20.25kHz+7.5kHz Dev.)
NOTE:Before proceeding to further adjustments after switching power ON, let the tuner run for ten minutes to allow
the circuits to stabilize.
FM SSG
Displayed
Adjustment
Adjustment Method
No.
Frequency(MHz)
Level(dBf)
Frequency(MHz)
Point
(Switch Position)
TUN Volt
1
•••••
•••••
108.0
L5
DC V Meter(1) : 6V
IF
2
98.1 M
60
—
100
98.1
T51
Center Meter : 0
ANT Coil
3
98.1 M
5
98.1
L2
mV Meter(1) : Maximum
RF Coil
4
98.1 M
5
98.1
L4
mV Meter(1) : Maximum
RF
5
129.3 M
60
—
80
107.9
TC1
mV Meter(1) : Minimum
Trimmer
6
RF Coil and RF Trimmer shall be adjusted twice or more
IFT
7
98.1 M
5
98.1
T31
mV Meter(1) : Maximum
(STEREO MODE)
ARC
8
98.1 S
40
98.1
VR154
mV Meter(1) : Separation 5dB
(STEREO MODE)
Summary of Contents for KEH-1800
Page 4: ...4 KEH 1800 1830 2 2 EXTERIOR ...
Page 7: ...7 KEH 1800 1830 ...
Page 8: ...8 KEH 1800 1830 2 3 CASSETTE MECHANISM ASSY ...
Page 12: ...12 KEH 1800 1830 A 1 2 3 4 B C D 1 2 3 4 FM AM TUNER UNIT TA A a A a A b B ...
Page 13: ...13 KEH 1800 1830 5 6 7 8 A B C D 5 6 7 8 CASSETTE PCB TAPE 24dBs A a A a A b D D ...
Page 15: ...15 KEH 1800 1830 5 6 7 8 A B C D 5 6 7 8 KEYBOARD UNIT CLOCK B LOUD PGM ATT A b A a A b C C ...
Page 16: ...16 KEH 1800 1830 A 1 2 3 4 B C D 1 2 3 4 3 2 FM AM TUNER UNIT B 3 1 2 FM AM TUNE B ...
Page 17: ...17 KEH 1800 1830 5 6 7 8 A B C D 5 6 7 8 B TUNER UNIT A ...
Page 19: ...19 KEH 1800 1830 5 6 7 8 A B C D 5 6 7 8 D A 2 1 3 IP BUS CN1 B SIDE A ...
Page 20: ...20 KEH 1800 1830 A 1 2 3 4 B C D 1 2 3 4 A A TUNER AMP UNIT ...
Page 21: ...21 KEH 1800 1830 5 6 7 8 A B C D 5 6 7 8 A SIDE B ...
Page 22: ...22 KEH 1800 1830 A 1 2 3 4 B C D 1 2 3 4 4 2 FM AM TUNER UNIT B SIDE A B A FM AM TUNER UNIT ...
Page 23: ...23 KEH 1800 1830 1 2 3 4 A B C D 1 2 3 4 B SIDE B B FM AM TUNER UNIT ...
Page 36: ...36 KEH 1800 1830 PA4023B ...
Page 37: ...37 KEH 1800 1830 7 1 2 DISPLAY CAW1513 SEGMENT COMMON ...
Page 39: ...39 KEH 1800 1830 7 3 BLOCK DIAGRAM KEH 1800 X1M EW A B D C ...