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COMPONENT DESCRIPTION
ELECTRIC UNIT (X25-928x-xx)
REF.
No.
FUNCTION
IC200
TV VIF/CHROMA
IC202
VIDEO AMPLIFIER
IC203
VIDEO AMPLIFIER
IC300
TV VIF/SIF
IC301
AM DETECTION
IC400
VIDEO SW
IC401
TV DIVERSITY
IC502
OPERATION AMPLIFIER
IC504
NOISE CANCELER
IC700
AVR
IC701
DC/DC REGULATOR
IC702
AVR
IC800
SYSTEM u-COM
IC801
RESET IC
Q100
IF SW
Q101
SIF AMPLIFIER
Q102
IF SW
Q103
VIF AMPLIFIER
Q201,202
BUFFER
Q203,204
BUFFER
Q205-207
RGB MUTE
Q208-210
RGB BUFFER
Q211,212
VIDEO BUFFER
Q300-302
CLOCK SW
Q303,304
VIDEO BUFFER
Q305
SYNC PIF SW
Q306,307
S-METER DC AMPLIFIER
Q308
VIDEO BUFFER
Q309
VIDEO MUTE
Q400
VIDEO MODE SW
Q401
ADJUST MODE SW
Q500,501
AUDIO MUTE
Q700
Q701 DRIVER
Q701
POWER SW
Q702
8V AVR
Q703
8V AVR
Q704
5V AVR
Q705
5V AVR
Q706
B.U. DETECTION
Q800
PANEL/BASS RESET SW
KTC-V500E/N/P
OPERATION
Detects VIF, and processes chroma.
Amplifies G and B signals up to 6dB at 75 ohms.
Amplifies SYNC and R signals up to 6dB at 75 ohms.
Detects VIF and SIF (Euro model's one is for diversity).
Detects SIF (AM).
Switches diversity video signal.
Switches TV antenna.
LPF & amplifier.
Cancels noise.
5V local regulator.
Switches DC/DC voltage.
8V local regulator.
Controls functions.
Resets system u-com.
Switches SAW filter input IF.
Amplifies SIF.
Switches SAW filter input IF.
Amplifies VIF.
Creates H-sync pulse.
Buffers video signal.
Mutes RGB signals.
Buffers RGB signals.
Buffers video signal.
Switches clock.
Buffers video signal.
Switches sync PIF frequency.
Amplifies s-meter DC.
Buffers video signal.
Mutes TV video signal.
Switches diversity video mode.
Switches diversity adjustment mode.
Mutes audio signal.
Drives Q701.
Switches back-up power supply.
Supplies power to TV front-end and IF circuit.
Supplies power to IC200.
Supplies power to TV front-end and IC301.
Supplies power to video circuit.
Detects back-up.
Controls reset for panel and bass.
3
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