Hitachi FT-M33 Serviceanleitung

@HITACHI
SERVICE MANUAL
SAFETY PRECAUTIONS
The following precautions
1. Since many parts in the unit have special safety-related
ly critical parts in the power circuit
Critical parts are marked with
2. Before returning a repaired unit to the customer,
plete'y safe to operate without
SPECIFICATIONS
Circuitry
FM SECTION
Frequency range
Usable Sensitivity
50 dB Quieting Sensitivity
(For U.S.A. & Canada)
Image interference ratio
Total harmonic distortion
Signal-to-noise ratio
Frequency response
Selectivity
Stereo separation
Capture ratio
SPECIFICATIONS
AM/FM
April
should be observed when servicing.
block should not be replaced with other makers.
in the schematic diagram and circuit
the service technician
danger of electrical shock.
AM/FM 2-band Stereo tuner
(FT-M33), MW/LW/FM 3-band
Stereo tuner (FT-M33L)
88—108 MHz
10.8 dBf (IHF), 1.0 uV (75 ohms DIN)
MONO: 19.2 dBf
STEREO: 38.2 dBf
50 dB (98 MHz)
MONO: 0.1% (1 kHz)
STEREO: 0.25% (1 kHz)
MONO: 77 dB (IHF). 65 dB (DIN Audio
a-peak) 60 dB (DIN Noise a-peak)
STEREO: 70 dB (IHF), 60dB
a-peak) 55 dB (DIN Noise a-peak)
30 Hz - 12 kHz (75 dB)
(For U.S.A. & Canada)
30 1-Az — 12 kHz (50 us dB)
(Except U.S.A., Canada& W. Germany)
30 Hz — 12 kHz (50gs
(for W. Germany)
50 dB (400 kHz, IHF)
50 d3 (300 kHz. DIN)
45 dB (1 kHz) (Except W.Germany)
1.0 dB (B.P.F. 1 kHz)
AND PARTS ARE
STEREO
1982 TOYOKAWA
TY
CONTENTS
SPECIFICATIONS
FEATURES
GENERAL
FM TUNER
FT-M33
AM TUNER
DISASSEMBLY
DIAL CORD
BLOCK
PRINTED
CIRCUIT
REPLACEMENT
FT-M33L
FRONT
characteristics. always use genuine Hitachi's replacement
board diagram.
must thoroughly
Output voltage
Antenna terminal
MW SECTION
Frequency range
Sensitivity
Image interference
Selectivity
Signal-to-noise
Output voltage
(DIN Audio
LW SECTION
Frequency range
Sensitivity
I mage interference
GENERAL
Power requirements
Power consumption
Dimensions
Weight
SUBJECT TO CHANGE
No. 311
FT-M33
FT-M33L
.
..
ALIGNMENT INSTRUCTION...
ALIGNMENT .
ALIGNMENT ..
AND REPLACEMENT..
SETTING...
DIAGRAM..
WIRING BOARD.
DIAGRAM ..... ....
PARTS LIST...
AND REAR PANEL..
parts, Especial-
test the unit to ascertain that it is com-
550 mV (400 Hz, 75 kHz deviation)
(for U.S.A. & Canada), 290 mV (400 Hz,
40 kHz deviation ) (Except U.S.A. & Canada)
300 ohms balanced
unbalanced
530 — 1 ,605 kHz
20 uv (IHF), 40gv (DIN),
100 gV (for Switzerland)
ratio
50 dB
34 dB (±10 kHz. IHF) 30 dB
DIN)
ratio
53 dB
165 mV (400 Hz, 30% modulation)
(FTM33L)
150 — 350 kHz
1 10 gv, 200 vV (for Switzerland)
ratio 50 dB
AC 120V,
-220—240V 50/60
8 watts
435(W) x 830-0 x 246(D)
(17-1/8" x 3-1/4" x 9-61/64")
3.5 kg (7.7 lbs)
FOR IMPROVEMENT.
TUNER
WORKS
EGF
.3
3
4
.5
... 7
8
8
9,11
. 10,12
13
17
and 75 ohms
kHz,
Hz
mm