Components Description - Kenwood KAC-5203 Service Manual

AUDIO UNIT (X09-8612-70)
Ref. No. Application / Function
IC1,2 Input Isolation AMP
IC3 Pin 1-3: LPF, Pin 5-7: Inverter
IC4 DC-DC Comparator
IC5 Attenuator Driver
Q3-6 FET Driver
Q7,8 For DC-DC Comparator
Q201~204 Difference AMP 1st Stage
Q205,206 Current Mirror
Q207~210 Difference AMP 2nd Stage
Q211,212 Temperature Compensation
Q213~216 Darlington 1st Stage
Q217~220 Final Stage
Q601 Voltage Supply
Q602 Over-voltage Protection
Q603 P.CON
Q604,605 Mute Driver
Q606~609 DC Protection
Q610~614 Shock Noise Mute
Q615,616 Mute
Q617~621 Over-current DET
Q622,623 Attenuator
D1 BATT Reverse Connection Protection
D2,3 IC4 Reverse Breakdown Voltage Protection
D4 Mute Driver
D6,7 DC-DC Rectifier
D8,9 15V AVR
D101~104 Static Electricity Countermeasure
D201,202 Difference AMP 2nd Stage
D203,204 Current Mirror
D601 Voltage Supply
D602 Over-voltage DET
D603 Voltage Supply
D604 Shock Noise Mute
D605,606 Mute Driver
D607 LED Control
D609,610 DC Protection
D611~613 Shock Noise Mute
D614~617 Over-current DET
D650 P.CON-ON DET

COMPONENTS DESCRIPTION

When turning power ON/OFF, the protection functions.
When turning power ON/OFF, the protection functions.
When turning power ON/OFF, the protection functions.
When P.CON is ON, the LED lights.
When DC protection functions, the LED goes out.
KAC-5203
Operation / Condition / Compatibility
3