Read Sharp QT-CD121H (serv.man2) Service Manual online
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QT-CD121H/112H
FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER
TO THE OPERATION MANUAL.
TO THE OPERATION MANUAL.
SPECIFICATIONS
General
Power source:
AC 230 - 240 V, 50 Hz
DC 12 V [ "D" size (UM/SUM-1,
R20 or HP-2) battery x 8]
DC 12 V [ "D" size (UM/SUM-1,
R20 or HP-2) battery x 8]
Power consumption:
11 W
Output power:
PMPO; 28 W (total)
(112H/121H Except for
MPO; 8.4 W (4.2 W + 4.2 W)
UK/New Zealand)
(AC operation, DIN 45 324)
RMS; 4.6 W (2.3 W + 2.3 W)
(DC operation, DIN 45 324)
RMS; 4.6 W (2.3 W + 2.3 W)
(DC operation, DIN 45 324)
Output power:
MPO (Max.); 8.4 W (4.2 W + 4.2 W)
(121H For UK)
(AC operation)
RMS; 4.6 W (2.3 W + 2.3 W)
(DC operation, 10 % T.H.D.)
RMS; 4.6 W (2.3 W + 2.3 W)
(DC operation, 10 % T.H.D.)
Output power:
PMPO; 28 W (total)
(121H For
MPO (Max.); 8.4 W (4.2 W + 4.2 W)
New Zealand)
(AC operation)
RMS; 4.6 W (2.3 W + 2.3 W)
(DC operation, 10 % T.H.D.)
RMS; 4.6 W (2.3 W + 2.3 W)
(DC operation, 10 % T.H.D.)
Speakers:
10 cm (4") Woofer x 2
(121H Except for UK/
Tweeter x 2
New Zealand)
Speakers:
Speakers:
10 cm (4") full-range speaker x 2
(121H For UK/
Tweeter x 2
New Zealand)
Speakers:
Speakers:
10 cm (4") full-range speaker x 2
(112H)
Output terminal:
Output terminal:
Headphones; 16-50 ohms
(recommended 32 ohms)
(recommended 32 ohms)
Dimensions:
Width; 480 mm (18-15/16")
Height; 153 mm (6-1/16")
Depth; 254 mm (10")
Height; 153 mm (6-1/16")
Depth; 254 mm (10")
Weight:
3.2 kg (7.1 Ibs.) without batteries
Radio
Frequency range:
FM; 87.6 - 108 MHz
(121H)
AM; 526.5 - 1,606.5 kHz
Frequency range:
FM; 88 - 108 MHz
(112H)
SW; 5.95 - 18 MHz
MW; 526.5 - 1,606.5 kHz
MW; 526.5 - 1,606.5 kHz
Tape recorder
Frequency response:
50 - 14,000 Hz (Normal tape)
Signal/noise ratio:
50 dB
Wow and flitter:
0.3 % (DIN 45 511)
(112H/121H Except for UK/New Zealand)
Wow and flitter:
Wow and flitter:
0.25 % (WRMS)
(121H For UK/New Zealand)
Motor:
Motor:
DC 12 V electric governor
Bias system:
AC bias
Erase system:
Magnet erase
Compact disc player
Disc:
Compact disc
Signal readout:
Non-contact, 3-beam semi-
conductor laser pickup
conductor laser pickup
Audio channels:
2
Quantization:
16-bit linear quantization
Filter:
4-tims oversampling digital filter
D/A converter:
1-bit D/A converter
Wow and flutter:
Unmeasurable
(less than 0.001% W. peak)
(less than 0.001% W. peak)
Specifications for this model are subject to change without
prior notice.
prior notice.
IMPORTANT SERVICE NOTES (121H FOR UK ONLY)
Before returning the unit to the customer after completion of a
repair or adjustment it is necessary for the following withstand
voltage test to be applied to ensure the unit is safe for the
customer to use.
Setting of Withstanding Voltage Tester and set.
repair or adjustment it is necessary for the following withstand
voltage test to be applied to ensure the unit is safe for the
customer to use.
Setting of Withstanding Voltage Tester and set.
Set name
Set value
Withstanding Voltage Tester
Test voltage
4,240 VPEAK
3,000 VRMS
3,000 VRMS
Set time
6 secs
Set current (Cutoff current)
4 mA
Unit
Judgment
OK: The “GOOD” lamp lights.
NG: The “NG” lamp lights and the buzzor sounds.
NG: The “NG” lamp lights and the buzzor sounds.
PROBE
AC
OUT
UNIT
SHORT-CIRCUT
AC POWER
SUPPLY CORD
AC POWER
SUPPLY CORD
CONNECT THE PROBE
TO GND OF BATTERY
SPRING
TO GND OF BATTERY
SPRING
WITHSTANDING
VOLTAGE TESTER
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