Sharp 28KF-84H (serv.man2) Service Manual ▷ View online
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28KF-84H
ELECTRICAL SPECIFICATIONS
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White Level
Set brightness control to get total picture tube cathode current of 600
µ
A under no signal condition.
Maximum necessary correction of each picture tube cathode current to get 8950 degrees
K-20 MPCD
screen temperature should not exceed 15% of its original value.
X=0.290 ± 0.015 Y=0.284 ± 0.015
WARNING
The chassis in this receiver is partially hot. Use an isolation transformer between the line cord plug
and power receptacle, when servicing this chassis.
To prevent electric shock, do not remove cover. No user-serviceable parts inside. Refer servicing to
qualified service personnel.
and power receptacle, when servicing this chassis.
To prevent electric shock, do not remove cover. No user-serviceable parts inside. Refer servicing to
qualified service personnel.
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Focus ................. High Bipotencial Electrostatic
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Sweep Deflection ............................. Magnetic
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Picture Intermediate frequency .......... 38.9MHz
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Sound Carrier Trap ........................... 32.9MHz
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Adjacent Sound Carrier Trap ............. 40.9MHz
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Adjacent Picture Carrier Trap ........... 30.9MHz
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Aerial Input Impedance
VHF/UHF ................. 75 ohm Unbalanced
•
Tuning Ranges ..... 45.75MHz thru 855.25 MHz
VHF: IR A - J / CC01-CC68 (Hiperband)
UHF: I21 - I69 CH
UHF: I21 - I69 CH
Specifications are subject to change without prior notice.
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Power Input .................... 220V-240 Volts AC 50Hz
•
Power Consumption
Normal Operation (Method IEC60107) ...............100W
Stand-by Operation ..........................................1.5W
Stand-by Operation ..........................................1.5W
•
Audio Power Output Rating (MPO) / Impedance
Internal Left Speaker ................................. 10W, 7
Ω
Internal Right Speaker ............................... 10W, 7
Ω
•
Speakers
Left / Right ................................................. 12 x 6cm
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Convergence (Maximum Misconvergence)
Static (Centre) between any two colours ... 0.03 cm
Dynamic after static equals zero
Dynamic after static equals zero
Within 28 x 15 cm rectangle ........... 0.13 cm
56 x 30 cm rectangle........................ 0.15 cm
56 x 30 cm rectangle........................ 0.15 cm
Everywhere else .......................................... 0.18 cm
Display
