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KRF-V7300D/V8300D/V9300D
● Semiconductor Working Description (X14-8112-70)
Ref. No.
Parts No.
D1
B30-2597-05
D2
B30-2702-05
D3
1SS302-F
D4
1SS302-F
D5
1SS302-F
D9
1SS355
D10
UDZW6.8 (B)
D11
1SS355
D12
1SS355
D201,202
1SS355
D203
1SS302-F
D204
1SS355
D205~208
1SS355
D301,302
1SS302-F
D401
TS4B03G-B1
D402
TS6P03G-B
D403
TS4B03G-B1
D404
1SR139-400T64
D405
1SS302-F
D406
1SS302-F
D407,408
UDZW16 (B)
D409
1SR139-400T64
D410
UDZW4.7 (B)
D411
UDZW8.2 (B)
D412
1SS355
D413
UDZW8.2 (B)
D414
1SS355
D415
UDZW8.2 (B)
D416
1SS355
D419~422
1SR139-400T64
D423~426
1SR139-400T64
D427
1SS302-F
D428
1SS302-F
D429
1SS302-F
D430
1SS355
D431
1SS355
12
CIRCUIT DESCRIPTION
Description
STANDBY LED (RED)
PURE AUDIO MODE LED (WHT)
Protect the rotary encoder (LISTEN MODE) from static electricity.
Protect the rotary encoder (MULTI CONTROL) from static electricity.
Protect the rotary encoder (INPUT SELECTOR) from static electricity.
Drop the voltage for remote control receiving device.
For cutoff bias of FL.
Protect circuit between digital +5V and GND from the reverse current.
Protect circuit between FL -30V and GND from the reverse current.
Rectifi er diodes for reset circuit.
Constant current for power relay (1.2V up)
Protect the power relay from the reverse voltage.
Rectifi er diodes for small transformer.
Protect the FRONT AUX circuit from static electricity.
Stacked rectifi er diode for DSP
Stacked diode for HDMI
Stacked diode for iPod.
Protect the microprocessor from the reverse current.
Protect the microprocessor from connecting power supply (DSP's
regulator) suddenly.
Protect the microprocessor from connecting power supply (DSP's
transformer) suddenly.
16V zener diode for FL power supply (-30V)
Protect the microprocessor from the reverse current.
For voltage adjustment of microprocessor protection.
Protect the circuit of DSP (+5V).
Protect the circuit of DSP +5V.
Protect the circuit of HDMI (+7V).
Protect the circuit of HDMI +7V.
Protect the circuit of HDMI (+5V).
Protect the circuit of HDMI +5V.
Rectifi er diode for FL (-30V).
Rectifi er diode for analog circuit (±12V).
Protect the microprocessor from connecting power supply (HDMI's
transformer) suddenly.
Protect the microprocessor from connecting power supply (HDMI's
regulator) suddenly.
Protect the microprocessor from connecting power supply (FL's
circuit) suddenly.
Protect the circuit of FL -30V.
Protect the circuit of analog +B.
Logic
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