Kenwood KVT-719DVD Service Manual

Also see for KVT-719DVD: Instruction manual Training guide Installation manual Installation manual

Contents

11KVT-719DVD/729DVD/729DVDY/739DVDRef. No. Application / Function Operation / Condition / CompatibilityQ351 Transistor Pre-OutMute Mute transistor (FL)Q352 Transistor Pre-OutMute circuit (Front, Rear)Q353 Transistor Pre-OutMute Mute transistor (FR)Q354 Transistor Pre-OutMute Mute transistor (RL)Q355 Transistor Pre-OutMute Mute transistor (RR)Q356 Transistor Pre-OutMute Mute transistor (SUB L)Q357 Transistor Pre-OutMute circuit (SUB)Q358 Transistor Pre-OutMute Mute transistor (SUB R)Q359 Transistor Pre-OutMute Mute transistor (AV-OUT L)Q360 Transistor Pre-OutMute circuit (AV-OUT)Q361 Transistor Pre-OutMute Mute transistor (AV-OUT R)Q802~808 Transistor Synchronizing separator circuitQ809 Transistor TV_MUTE circuit (R)Q810 Transistor TV_MUTE circuit (G)Q811 Transistor TV_MUTE circuit (B)Q813 Transistor TV_MUTE circuit (R)Q814 Transistor TV_MUTE circuit (G)Q815 Transistor TV_MUTE circuit (B)● VIDEO UNIT (X35-4710-10)Ref. No. Application / Function Operation / Condition / CompatibilityIC1 Inverter control IC Control and drive of the inverter circuit for the back lightIC101 DC/DC converter IC +12.5V power supply for VCOM amplifier (Gamma IC) and -12.0V/+18.5V power supply for LCDIC102 Mono-multi Delay 5V power supply for DC/DC ICIC103 NOT ReverseIC301 Serial/parallel conversion Extension of μ-com portIC302 AND Buffer to delay V.SYNCIC303 PLL LPF LPF for PLL control (VT voltage control)IC304 Timing controller IC Control of LCD moduleIC401 Dimmer sensor Detection for auto-dimmerQ1 Dimmer SW Turn on or off in response to the PWM control signal to dimmer the back lightQ2,3 Inverter driver Drive the inverter circuitQ4 Switch SW to change the free run frequency for inverter control ICQ5 5V constant voltage 5V power supply for inverter control ICQ301 VCO For PLL oscillationQ303 Buffer For PLL clockQ501 Touch panel Y1 SW Y0 (X0) SW: On in response to Y (X) axis input and off in response to X (Y) axis inputQ502 Touch panel X1/Y0 SW X1 SW: Turn on in response to sensing of the touch on the panel or X axis input and apply voltageQ503 Touch panel Y1 SW Y1 SW: Turn on in response to Y axis input and apply voltageCOMPONENTS DESCRIPTION