LZ-702IR
4
COMPONENTS DESCRIPTION
●
ELECTRIC UNIT (X34-4320-61)
Ref. No.
Application / Function
Operation / Condition / Compatibility
IC101
8.5V REG
Regulates 8.5V
IC102
5V REG
Regulates 5V
IC201
ISO AMP
Audio input isolation amplifier (AV-IN2)
IC202
ISO AMP
Audio input isolation amplifier (AV-IN1)
IC401
VIDEO AMP
75
Ω
driver with 6dB amplifier for composite signal
IC501
AV SW
AV input and output amplifier
IC801
NON-INVERTER
Buffer
Q104
REVERSE DET
Detects reverse signal
Q401
VIDEO DRIVER
Drives video signal
Q402,403
MUTE
P.ON output turns Q405 and Q406 on when trigger is muted
Q404~406
MUTE DRIVER
Muting driver for Lch and Rch
●
VIDEO UNIT (X35-4640-62)
Ref. No.
Application / Function
Operation / Condition / Compatibility
IC1
V.SYNC DELAY BUFFER
Buffer for V.SYNC delay signal
IC3
TIMING CONTROLLER
Controls LCD modulator
IC4
PLL LPF
LPF for PLL control (VT voltage control)
IC101
3.3V
→
5V
3.3V
→
5V conversion
IC103
TIMING CONTROLLER
Controls LCD modulator
IC104
V.MUTE COMPOSER
Composes V.MUTE signal
IC105
HSY/VSY COMPOSITE SYNC COMPOSER
Composes HSY and VSY composite synchronous signals
IC106
MUTE INVERTER
Inverts mute signal
IC108
3.3V
→
5V
3.3V
→
5V conversion
Co14, -12V and +18.5V
Resets
µ
-com
Controls unit (X35-)
Memory for
µ
-com
ROM correction
Switches DIMMER to V.COM, or V.COM to DIMMER
Detects remote signal
Detects auto dimmer
IC402
5V
→
3.3V
5V
→
3.3V conversion
IC500
INVERTER CONTROLLER
Controls and drives backlight inverter
IC501
DC-DC CONVERTER
Controls SW8V and SW8.5V
IC502
ACC5.0V REG
Composes ACC5.0V
IC503
ACC3.3V REG
Composes ACC3.3V
IC505
SW5.0V REG
Composes SW5.0V
IC506
SW3.3V REG
Composes SW3.3V
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