Text preview for : b_aud.pdf part of PANASONIC KX-TCD290 SERVICE MANUAL



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AUDIO MAIN SIGNAL

IC8001
(DV3.2)

IC8420
(AUDIO DAC)

IC4301
DAC

SRCK 168

SCK IN

OUTPUT AMP AND LOW-PASS FILTER

15

VOUTL

2 AMP 1

JK4401 MIX L OUT

7
DAC OUTPUT AMP AND LOW-PASS FILTER

IC4301
14 VOUTR 6 AMP 7 MIX R OUT
SERIAL INPUT I/F

LRCK 167

LRCK IN

8

ADOUT3 169

DM1XOUT

6

JK3871
21 20 19 18
4X / 8X OVERSAMPLING DIGITAL FILTER WITH FUNCTION CONTROLLER ENHANCED MULTI-LEVEL DELTA-SIGMA MODULATOR

17 16 15 14 13 12 11

P9 76 P10 78 P11 77

STBDAC SBT3 SBQ3

10

2 3 4
FUNCTION CONTROL I/F

9 8

IC8420-13,14 PIN 1.2Vp-p(0.5msec./div.) L OUT R OUT

7 6 5 4 3 2 1

SYSTEM CLOCK

Q4422
MUTE
ZERO DETECT

QR4302,QR4306
MUTE

DACCK 166

ADAC-CLK

5

SYSTEM CLOCK MANAGER

Q4423
MUTE

Q3852
MUTE

Q3851
MUTE Q4302 SWITCHING FROM IC6001 - 62 PIN

IECOUT 173

Q4751 AMP

JK4401 DIGITAL AUDIO OUT (COAXIAL)

DVD-S42E/EG AUDIO BLOCK DIAGRAM