Kenwood KRF-V7300D, Service Manual

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KRF-V7300D/V8300D/V9300D
Ref. No. Parts No. Description Logic
IC61 XC6206P332PRN Power supply except IC351,361 and 381. +3.3V
IC65 SI-3010KD Power supply for IC401. 1.27V
IC101 NJM5532MD-ZB Low Pass Filter (LPF) for L-ch and R-ch.
IC111 NJM4565V-ZB Low Pass Filter (LPF) for L-ch and R-ch.
IC131 NJM4565V-ZB Low Pass Filter (LPF) for surround L-ch and R-ch.
IC141 NJM4565V-ZB Low Pass Filter (LPF) for surround L-ch and R-ch.
IC161 NJM5532MD-ZB
Low Pass Filter (LPF) for center-ch and LFE (Low Frequency Effect)
-ch.
IC171 NJM4565V-ZB Low Pass Filter (LPF) for center-ch and LFE-ch.
IC191 NJM4565V-ZB Low Pass Filter (LPF) for surround back L-ch and R-ch.
IC201 NJM4565V-ZB Low Pass Filter (LPF) for surround back L-ch and R-ch.
IC221 NJM4565V-ZB Current summing amp. Sum LFE (bass) to L-ch and R-ch.
IC231 NJM4565V-ZB Converter. Signal from IC221 converts
IC251 NJM7311AM-ZB
Control con fi guration. Change surround channels to recording
outputs in recording mode.
IC261 74HCT3G34DP Interface from IC11 to IC251. Level shifter (+3.3V to +5V).
IC301 AK4589VQ Audio CODEC (ADCx2-ch, DACx8-ch, DITx2-ch,DIRx8-ch).
IC351 74H3GU04DP DSP master clock. 24.576MHz
IC361 74LVC2G241DP Master clock selector. H: HDMI input, L: except HDMI
IC381 74LVC2G125DP Audio clock selector. H: Digital, HDMI input, L: Analog
IC401 D788E001BRFP Decoder for DOLBY and DTS HD Audio format. 64bit/266MHz
IC451 A29L160A1CH DSP boot.
IC461 EM484M1644VB6 DSP operation.
Q341 2SK879-F (Y,GR) Bias for Q342.
Q342 2SD1963 (R,S) Power supply. +5V
Q343 2SA1576A (R,S) Control for base voltage for Q342.
Q344 2SC4081 (R,S) Control for base voltage for Q342.
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Semiconductor Working Description (X34-1072-70)
Ref. No. Parts No. Description Logic
D511 EC10QS10AG
Blocking diode for reverse current of the Receiver to HDMI (High-
De
fi nition Multimedia Interface) DVD IN.
D512 EC10QS10AG Blocking diode for reverse current of the receiver to HDMI VIDEO-2 IN.
D513 EC10QS10AG
Blocking diode for reverse current of the source device to HDMI DVD
IN.
D514 EC10QS10AG
Blocking diode for reverse current of the source device to HDMI
VIDEO-2 IN.
D515 RB751V-40
Blocking diode for reverse current of CEC (Consumer Electronics
Control) pull-up voltage.
IC501 SII9135CTU Ver 1.3 HDMI of receiver IC.
IC502 SII9134CTU Ver 1.3 HDMI of transmitter IC.
CIRCUIT DESCRIPTION