Do you have a question about the Sharp 27R-S50 and is the answer not in the manual?
Safety precautions for servicing the high voltage system and picture tube.
Guidelines on X-radiation and high voltage limits during service.
Safety checks required before returning the receiver to the customer.
Notice regarding safety-related characteristics of replacement parts.
Describes the controls located on the front panel of the television.
Explains the functions of the buttons on the remote control.
Details the circuit protection mechanisms used in the receiver.
Procedure to test the X-radiation protector circuit for proper operation.
Steps to check and verify the high voltage levels for safety.
Instructions on how to enter and exit the TV's service mode.
Explains how to navigate and select adjustment categories within service mode.
Lists adjustment ranges and initial values for the FIX VALUE category.
Lists adjustment ranges and initial values for the DEF category.
Lists adjustment ranges and initial values for the SIGNAL category.
Lists adjustment ranges and initial values for the FEATURE category.
Details adjustments required after replacing specific parts like IC201, IC2102, and CRT.
Procedure for adjusting the +B voltage in the receiver.
Steps to adjust the video signal level for optimal contrast.
Procedure for adjusting the RF Automatic Gain Control.
Steps to adjust the CRT screen for optimal display.
Procedure to adjust the white balance for accurate color reproduction.
How to adjust sub-picture controls for normal contrast.
Procedure to adjust the tint control for natural skin tones.
Steps to adjust the color level for proper color reproduction.
Procedure to adjust the brightness control for optimal viewing.
Adjusting vertical size, linearity, and V-S correction for picture geometry.
Procedure to adjust the horizontal position of the picture.
Steps to adjust the vertical phase for proper vertical display.
Procedure to adjust the horizontal position of closed captions.
Adjustments related to the MTS (Multichannel Television Sound) system.
Adjusting the audio level for the MTS system.
Procedure to adjust the Voltage Controlled Oscillator for MTS.
Adjusting the filter for optimal stereo reception.
Adjusting stereo separation for MTS audio.
Explains notes, voltage, and waveform measurement conditions for schematics.
Conditions for measuring DC voltages in the circuit.
Conditions for capturing and measuring waveforms.
Displays waveform photographs for various test points.
Schematic diagram for the MAIN-1 Unit of the receiver.
Schematic diagram for the MAIN-2 Unit of the receiver.
Schematic diagram for the CRT and Front A/V units.
Wiring side layout of Printed Wiring Board A (Main Unit).
Chip parts side layout of Printed Wiring Board A (Main Unit).
Wiring side layout of Printed Wiring Board B (CRT Unit).
Wiring side layout of Printed Wiring Board H (Front A/V Unit).
Notes and warnings regarding the replacement of parts.
Instructions for ordering replacement parts for the unit.
List of parts related to the picture tube.
List of transistors used in the unit.
List of diodes used in the unit.
List of packaged circuits used in the unit.
List of filters and coils used in the unit.
List of transformers used in the unit.
List of capacitors used in the unit.
List of resistors used in the unit.
List of switches used in the unit.
List of miscellaneous parts used in the unit.
List of transistors for PWB-B (CRT Unit).
List of diodes for PWB-B (CRT Unit).
List of capacitors for PWB-B (CRT Unit).
List of resistors for PWB-B (CRT Unit).
List of miscellaneous parts for PWB-B (CRT Unit).
List of resistors for PWB-A (Main Unit) continued.
Diagram indicating the location of cabinet parts on the unit.