Kenwood DDX8019, Service Manual

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DDX8019/8029/8029Y/8039
Ref. No. Application / Function Operation / Condition / Compatibility
IC104 Logic IC (inverter) Synthesis of remote control signal from X14 and Wired_remote control signal
IC105 Serial/Parallel IC Control output of AudioSW IC
IC106 Logic IC Conversion of communication level (3.3
→
5) between X14 system µ-com
IC201 Electronic volume IC Audio volume control and audio signal selection
IC202 Logic IC (multiplexer) Audio signal selection (Main)
IC203 Logic IC (multiplexer) Audio signal selection (Sub)
IC251 RDS decoder IC For RDS signal processing and demodulation
IC301 Power IC Power amplifi er for speaker output
IC901 OPAMP PREOUT amplifi er (Front)
IC902 OPAMP PREOUT amplifi er (Rear)
IC903 OPAMP PREOUT amplifi er (Sub woofer)
IC904 Power supply converter ±9V power supply generation of PREOUT amplifi er
IC910 OPAMP SVR and Ref3.3V generation for Power IC
IC911 OPAMP Midpoint potential generation (4.0V) for Power IC
Q1 Transistor Reverse detection circuit
Q2 Transistor Parking detection circuit
Q3 Transistor ILLUMI detection circuit
Q4,6 Transistor Bu detection circuit
Q7~10 Transistor P_CON output circuit
Q11,12 Transistor ANT_CON output circuit
Q13 Transistor EXT_CONT output circuit
Q51 Transistor Bu5V generation
Q52 Transistor Bu5V circuit
Q53,54 Transistor SW5V circuit
Q70~72 Transistor Audio8V and Tuner8V generation
Q81~86 Transistor Relay SW1 output, and over current detection circuit
Q91~96 Transistor Relay SW2 output, and over current detection circuit
Q101 Transistor µ-com reset circuit
Q102,103 Transistor TV reset circuit
Q104,105 Transistor DET MUTE circuit (Trigger Reset)
Q107 Transistor DET MUTE circuit (Trigger X14MUTE)
Q108 Transistor DET MUTE circuit (Trigger Bu-DET)
Q251,252 Transistor On when AM (Tuner8V)
Q351 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)
COMPONENTS DESCRIPTION