Sharp 14SL30 Service Manual
Text of the manual
In the interests of user-safety (Required by safety regulations in some countries) the set should be restored to its
original condition and only parts identical to those specified should be used.
S89N421SL40//
SERVICE MANUAL
14SL30
21SL40, 21SL70
COLOR TELEVISION
Chassis No. SN-90A(14")
Chassis No. SN-80A(21")
POWER
POWER
– VOL
IMPORTANT SERVICE SAFETY PRECAUTION
Service work should be performed only by qualified service technicians who are thoroughly
familiar with all safety checks and the servicing guidelines which follow:
X-RADIATION AND HIGH VOLTAGE LIMITS
1. Be sure all service personnel are aware of the
procedures and instructions covering X-radiation.
3
14SL30
21SL40, 21SL70
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LOCATION OF USER'S CONTROL
TV
POWER
POWER
– VOL +
MENU
CH
VIDEO
L-AUDIO-R
IN
POWER
POWER
– VOL +
MENU
CH
IN
Infrared Transmitter Window
INPUT
Press → Switch to external video
INPUT 1 mode.
Press again → Switch to external video
INPUT 2 mode.
Press 3 times → Switch back to the
original TV mode.
CHANNEL UP/DOWN
(
) Selects nex
The receiver is protected by a 3.15A fuse (F701),
mounted on PWB-A, wired into one side of the AC
line input.
X-RADIATION PROTECTOR CIRCUIT TEST
After service has been performed on the horizontal
deflection system, high voltage system, B+ system,
test the X-Radiation protection circuit to ascertain
proper operation
