67
FH-MG6406ZH
FM ADJUSTMENT
Modulation
M:MONO MOD., 400Hz 30%(22.5kHz Dev.)
S1: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) : 6.5V
Center 1
98.1 M
65
98.1
L52
Center Meter : 0
Meter
ANT
1
89.9 M
5
89.9
L2
mV Meter(1) : Maximum
Coil
RF Coil
1
89.9 M
5
89.9
L4
mV Meter(1) : Maximum
IFT
1
98.1 M
5
98.1
T31
mV Meter(1) : Maximum
Separation
1
98.1 S
65
98.1
VR101
mV Meter(1) : Maximum
ARC
1
98.1 S
39
98.1
VR154
mV Meter(1) : Separation 5dB
Separation
Interstation
1
98.1 M
65
98.1
•••••
mV Meter(1) : AdB
Noise
2
98.1 M
-
∞
98.1
VR151
mV Meter(1) : A-20dB
Search
1
98.1 M
23.5
98.1
VR156
DC V Meter(2) : Level "H"
Sensitivity
2
98.1 M
22.5
98.1
VR156
DC V Meter(2) : Level "L"
3
Repeat steps 1 and 2 until the adjustment standards are satisfied.
AM ADJUSTMENT
FM SSG(400Hz,30%)
Displayed
Adjustment
Adjustment Method
No.
Frequency(kHz)
Level(dBµ)
Frequency(kHz)
Point
(Switch Position)
Search
1
999
32
999
VR247
DC V Meter(3) : Level "H"
Sensitivity
2
999
31
999
VR247
DC V Meter(3) : Level "L"
3
Repeat steps 1 and 2 until the adjustment standards are satisfied.
DOLBY B NR ADJUSTMENT
No.
Test Tape
Adjustment Point
Adjustment Method
(Switch Position)
1
NCT-150
VR301(Lch),VR302(Rch)
mV Meter(2) : –8.24dBm(300mV)±1dB
(400Hz,200nwb/m)
(DOLBY NR Switch : OFF)
Содержание FH-MG6406ZH Q1
Страница 4: ...4 FH MG6406ZH 2 EXPLODED VIEWS AND PARTS LIST 2 1 EXTERIOR ...
Страница 6: ...6 FH MG6406ZH 2 2 CD MECHANISM ...
Страница 9: ...9 FH MG6406ZH ...
Страница 10: ...10 FH MG6406ZH 2 4 CASSETTE MECHANISM MODULE ...
Страница 21: ...21 FH MG6406ZH 5 6 7 8 A B C D 5 6 7 8 FM M FM FM FM FM FM AM AM FM AM FM AM PNS FM IF B ...
Страница 33: ...C CN901 N CN251 G CN701 33 FH MG6406ZH 5 6 7 8 A B C D 5 6 7 8 A SIDE A FRONT ...
Страница 34: ...34 FH MG6406ZH A 1 2 3 4 B C D 1 2 3 4 ...
Страница 35: ...35 FH MG6406ZH 5 6 7 8 A B C D 5 6 7 8 A SIDE B ...
Страница 37: ...37 FH MG6406ZH 1 2 3 4 A B C D 1 2 3 4 B FM AM TUNER UNIT SIDE B B ...
Страница 39: ...A CN601 39 FH MG6406ZH 1 2 3 4 A B C D 1 2 3 4 C SIDE B KEYBOARD UNIT C ...
Страница 41: ...41 FH MG6406ZH 1 2 3 4 A B C D 1 2 3 4 CD CORE UNIT SERVO UNIT D SIDE B D IC Q ...
Страница 43: ...43 FH MG6406ZH 1 2 3 4 A B C D 1 2 3 4 CD CORE UNIT STS UNIT G SIDE B G ...
Страница 45: ...45 FH MG6406ZH 1 2 3 4 A B C D 1 2 3 4 4 7 PCB UNIT E PCB UNIT E I SIDE A SIDE B I PCB UNIT E I ...
Страница 46: ...46 FH MG6406ZH A 1 2 3 4 B C D 1 2 3 4 4 8 MOTOR PCB B SPINDLE MOTOR M5 MOTOR PCB B E E ...
Страница 47: ...47 FH MG6406ZH 5 6 7 8 A B C D 5 6 7 8 M M4 CARRIAGE 1 12 D CN301 E ...
Страница 49: ...49 FH MG6406ZH 1 2 3 4 A B C D 1 2 3 4 4 1 D883 S885 MAX DETECT Q881 I 4 11 PCB UNIT C PCB UNIT C J J ...
Страница 65: ...65 FH MG6406ZH Grating waveform Ech Xch 20mV div AC Fch Ych 20mV div AC 45 0 75 60 30 90 ...