47
KEH-P7800R,P6800R
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.)
S2:STEREO MOD., 400Hz, L or R=60%(40.50kHz+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
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)
RDS SL ADJUSTMENT
FM SSG
Displayed
Adjustment
Adjustment Method
No.
Frequency(MHz)
Level(dBf)
Frequency(MHz)
Point
(Switch Position)
1
104.0 S2
35
104.0
VR701
DC V Meter(2) : 1.75V+0.05V,-0.35V
DOLBY B NR ADJUSTMENT
No.
Test Tape
Adjustment Point
Adjustment Method
(Switch Position)
1
NCT-150
VR301(Lch),VR302(Rch)
mV Meter(2) : –6dBs±1.0dB
(400Hz,200nwb/m)
(DOLBY NR Switch : OFF)
Summary of Contents for KEH-P6800R
Page 4: ...4 KEH P7800R P6800R KEH P6800R X1N EW 11 8 24 5 4 6 3 2 7 12 13 10 14 1 ...
Page 6: ...6 KEH P7800R P6800R 2 2 EXTERIOR ...
Page 9: ...9 KEH P7800R P6800R ...
Page 10: ...10 KEH P7800R P6800R 2 3 CASSETTE MECHANISM MODULE KEH P7800R X1N EW ...
Page 12: ...12 KEH P7800R P6800R 2 4 CASSETTE MECHANISM MODULE KEH P6800R X1N EW ...
Page 15: ...15 KEH P7800R P6800R 5 6 7 8 A B C D 5 6 7 8 A b A A ...
Page 16: ...16 KEH P7800R P6800R BANTENNA JACK A 1 2 3 4 B C D 1 2 3 4 A a A a A b ...
Page 17: ...17 KEH P7800R P6800R C D E F MODULE 5 6 7 8 A B C D 5 6 7 8 A a A a A b C ...
Page 18: ...18 KEH P7800R P6800R A A 1 2 3 4 B C D 1 2 3 4 A a A b A b ...
Page 19: ...19 KEH P7800R P6800R 5 6 7 8 A B C D 5 6 7 8 A b A a A b ...
Page 20: ...20 KEH P7800R P6800R 3 1 2 FM AM TUNER UN B A 1 2 3 4 B C D 1 2 3 4 3 2 FM AM TUNER UNIT B ...
Page 21: ...21 KEH P7800R P6800R TUNER UNIT A 5 6 7 8 A B C D 5 6 7 8 B ...
Page 28: ...28 KEH P7800R P6800R A 1 2 3 4 B C D 1 2 3 4 A A TUNER AMP UNIT ...
Page 29: ...29 KEH P7800R P6800R 5 6 7 8 A B C D 5 6 7 8 A SIDE B ...
Page 30: ...30 KEH P7800R P6800R A 1 2 3 4 B C D 1 2 3 4 4 2 KEYBOARD UNIT C SIDE A KEYBOARD UNIT C ...
Page 31: ...31 KEH P7800R P6800R EL901 CN601 EJECT A 1 2 3 4 A B C D 1 2 3 4 C SIDE B C KEYBOARD UNIT ...
Page 33: ...33 KEH P7800R P6800R 1 2 3 4 A B C D 1 2 3 4 B B SIDE B FM AM TUNER UNIT ...
Page 58: ...58 KEH P7800R P6800R 7 3 BLOCK DIAGRAM D C B E A F ...