Werbung
HITACHI
T-22L,T-21L,T-55L,T-51L
SAFETY
PRECAUTION
The following
precautions
should
be observed
when
servicing.
1. Since
many
parts
in the unit have
special
safety related
characteristics,
always
use
genuine
Hitachi's
replacement
parts.
Especially critical parts in the power circuit block should
nat be replaced with other makers.
Critical parts are marked
with
A in the circuit diagram
and
printed wiring board.
2. Before
returning
a repaired
unit to the customer,
the service technician
must thoroughly test the unit to ascertain
that it is
SPECIFICATIONS
T-22L, T-21L
GENERAL
SPECIFICATIONS
Power Supply
Power Consumption
Dimensions
Weight
AMPLIFIER
SECTION
Audio output
T-22L:
T-21L:
Tone Control
Input Sensitivity and
Impedance
Output Impedance
TUNER
SECTION
Circuit System
Tuning Range
T-55L, T-S1L
~ 240 V, 50 Hz, ~ 220 V, 50 Hz
60 W [T-21L], 70 W [T-22L]
83.0(H) X 43.0(W) X 37.5(D) cm
23 kg
10 W X 2 (8 ohms, T.H.D. 5% both
channel driven, 1 kHz)
5 WX 2 (8 ohms, T.H.D. 5% both
channel driven, 1 kHz)
100 Hz +8 dB
1 kHz+8 dB
10 kHz+8 dB
Microphone 3 mV, 1 kohms
Speaker : 8 ohms
Headphones : 8 ohms
FM/MW/LW 3-band superhetero-
dyne
FM: 87.5 to 108 MHz
MW: 530 to 1,605 kHz
LW: 150 to 350 kHz
GENERAL
SPECIFICATIONS
Power Supply
Power Consumption
Dimensions
Weight
AMPLIFIER
SECTION
Audio
output
Tone Control
Input Sensitivity and
Impedance
Output Impedance
TUNER
SECTION
Circuit System
Tuning Range
~ 240 V, 50 Hz, ~ 220 V, 50 Hz
80 W
83.0(H) X 43.0(W) x 37.5(D) cm
23 kg
15 W X 2 (8 ohms, T.H.D. 5% both
channel driven, 1 kHz)
63 Hz+8 dB
250 Hz +8 dB
1 kHz +8 dB
4kHz+8 dB
16 kHz +8 dB
Microphone 3 mV, 1 kohms
Speaker : 8 ohms
Headphones : 8 ohms
FM/MW/LW 3-band superhetero-
dyne
FM:
87.5 to 108 MHz
MW : 530 to 1,605 kHz
LW: 150 to 350 kHz
completely safe to operate without danger of electrical shock.
IHF Sensitivity
FM Stereo Separation
FM Signal-to-Noise Ratio
Antennas
TAPE
DECK SECTION
Cassette tape deck
Tape
Tape Speed
Recording System and
Bias Frequency
Track System
Erasing System
Frequency Response
Normal
CrO2
Signal-to-Noise Ratio
Wow and Flutter
Crosstalk
Erase Ratio
Motor
IHF Sensitivity
FM Stereo
Separation
FM Signal-to-Noise Ratio
Antennas
TAPE DECK SECTION
Cassette tape deck
Tape
Tape Speed
Recording System and
Bias Frequency
Track System
Erasing System
Frequency Response
Normal
CrO2
Metal
Signal-to-Noise Ratio
Dolby NR ON/OFF
Wow and Fiutter
Crosstalk
Erase Ratio
Motor
FM: 2 wV (17.2 dBf) at S/N 26 dB
MW : 300 nV/m (S/N 20 dB)
LW: 600 zV/m (S/N 20 dB)
30 dB
60 dB
FM: External antenna
(aerial),
Wire ANT. (ZS)
MW/LW:
Built-in ferrite-core antenna
(aerial)
Cassette tape
4.75 cm/s
AC bias, 85 kHz
4 track 2 channel
AC erase
70 Hz to 10 kHz
70 Hz to 10 kHz
50 dB
0.3% WRMS
50 dB
60 dB
DC Motor
FM: 2 uwV (17.2 dBf) at S/N 26 dB
MW : 300 nV/m (S/N 20 dB)
LW: 600 pV/m (S/N 20 dB)
30 dB
60 dB
FM:
External antenna (aerial),
Wire ANT. (ZS)
MW/LW:
Built-in ferrite-core antenna
(aerial)
Cassette tape
4.75 cm/s
AC bias, 85 kHz
4 track 2 channel
AC erase
70 Hz to 14 kHz
70 Hz to 15 kHz
70 Hz to 15 kHz
58/50 dB
0.3% WRMS
50 dB
60 dB
DC Motor
Werbung
