SONY BKPF-106A Repair Manual

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IC
IC
AK4320-VM-E2 (ASAHIKASEI MICRO)FLAT PACKAGEAK5352-VF-E2 (ASAHIKASEI MICRO)FLAT PACKAGE



C-MOS 20-BIT AUDIO 2 CHANNEL D/A CONVERTER
C-MOS 20-BIT A/D CONVERTER

-TOP VIEW--TOP VIEW-
14
DIF0


6

AINL+

CKS
1


24
ZMUTE
15
DIF1


AINR+ IN
1

VB (+5V)
24

7








9
LRCK
AOUTL
18






1
AINL�




2
DVDD (+5V)

23
DZF
7
BICK
AOUTR
17
AINR� IN
2


23
SMODE1 IN
2
AINR+









8
SDATA







AINR�

21





3
DGND
22
VREF




VREF OUT
3


22
CMODE IN
22

SDATA







5
XTI
4






17
CMODE

18

XTO
MCLK
SCLK

XTO
4
AGND
21

10
SMUTE
23

4
VA (+5V)

21
SDATA OUT
23
19

DZF
SMODE1
L/R






11
HOLD
19
VCOM






15
20

SMODE2
FSYNC

XTI
5
AVDD (+5V)20

12
DEM0
16VCNT
5
A GND

20
FSYNC I/O


VREF3




13






9

DEM1
HPFE

PD
6
19
VCOM
1
AINL+ IN
6


19
L/R I/O
16

CKS
PD





24






8

ZMUTE
TST1

BICK
7
18
AOUTL
22AINL� IN
7


18
SCLK I/O
10

VREFTST2





PD





11

SDATA
8
17
AOUTR
6TST1
8


17
MCLK IN
14TST3





INPUTS






TST4


LRCK
9
16
VCNT
BICK
; SERIAL BIT CLOCK
HPFE IN
9


16
PD IN

CKS
; CLOCK SELECT (L : 256 fs/H : 384 fs)












DEM0, DEM1
; DE-EMPHASIS SELECTS

SMUTE
10
15
DIF1
DIF0, DIF1
; INPUT FORMAT SELECTS
TST2
10


15
SMODE2 IN





HOLD
; SOFT MUTING HOLD







HOLD
11
14
DIF0
LRCK
; L/R CLOCK
TST3
11


14
TST4





PD
; POWER DOWN







DEM01213DEM1SDATA
; SERIAL DATA INPUT
12VD (+5V)D GND 13
SMUTE
; SOFT MUTE (H : MUTE)

VREF
; REFERENCE VOLTAGE

XTI
; CRYSTAL OSCILLATOR INPUT

ZMUTE
; ZERO MUTE (H : MUTE)




OUTPUTS


AOUTL
; L-CH ANALOG OUTPUT

AOUTR
; R-CH ANALOG OUTPUT
INPUT


DZF
; ZERO INPUT DETECT
AINL+
; CHANNEL L ANALOG POSITIVE INPUT

VCNT
; MUTE VOLTAGE CONTROL
AINL�
; CHANNEL L ANALOG NEGATIVE INPUT

DIF0DIF1VCOM
; COMMON VOLTAGE
AINR+
; CHANNEL R ANALOG POSITIVE INPUT

1415XTO; CRYSTAL OSCILLATOR OUTPUT
AINR�
; CHANNEL R ANALOG NEGATIVE INPUT

9
CMODE
; MASTER CLOCK SELECT

7
SERIAL
8xT?18LRCK


(L : MCLK=256 fs)
(H : MCLK=384 fs)

BICK
INPUT
SCFCTFAOUTL

8INTERFACEINTERPOLATORMODULATORHPFE
; HIGH PASS FILTER ENABLE

SDATA

10SOFT


(L : OFF)

SMUTEMUTE17AOUTR
(H : ON)

8x
T?
DEM0
12
SCFCTFDE-EMPHASIS
INTERPOLATORMODULATORMCLK
; MASTER CLOCK

DEM1
13
CONTROL16

(CMODE=H : 384 fs)
()
VCNT

PD
CMODE=L : 256 fs
; POWER DOWN

HOLD
11
23

5
DZF

XTI
CLOCK OSC/
19

(L : POWER DOWN MODE)

1256 fs/384 fsVCOM
SMODE1, SMODE2
; INTERFACE CLOCK SELECT
CKSDIVIDER20
24ZERO
422AVDDSMODE1
SMODE2
MODE
LRCK

ZMUTEMUTE
21
6POWER
XTOVREFAGNDL
L
SUB MODE
H/L

PD
DOWNH
L
MASTER MODE
H/L

L
H
SUB MODE
L/H

HHMASTER MODEL/H
OUTPUT
; SERIAL DATA

SDATA
; REFERENCE VOLTAGE

VREF





INPUT/OUTPUT
; FRAME SYNC CLOCK

FSYNC
; INPUT CHANNEL SELECT

L/R
(SUB MODE : fs CLK INPUT)


(MASTER MODE : fs CLK OUTPUT)


; SERIAL DATA CLOCK

SCLK (SUB MODE : 64 fs CLK INPUT)

(MASTER MODE : 64 fs CLK OUTPUT)
AM26LS32ACNS (TI)FLAT PACKAGE
AM26LS32ACNS-E05


HIGH SPEED DIFFERENTIAL LINE RECEIVER

NTOP VIEWN15SMODE2
EN2SMODE1 23
161514131211109FUNCTION TABLE6AINL+
T?
Vcc
EN2
EN1
OUTPUT
721SDATA
(+5v)+��+0
0
ENABLE
AINL�MODULATOR
18
0
1
ENABLE
DIGITAL
SERIAL
SCLK
DECIMATION
OUTPUT

1
0
HI-Z
FILTERINTERFACE19L/R
11ENABLEAINR+ 1T?20FSYNC
�++ �0 ; LOW LEVEL
AINR� 2MODULATOR
GND1 ; HIGH LEVEL

12345678HI-Z ; HIGH IMPEDANCE
VREF3VOLTAGE
REFERENCE

SENSE
INPUT VOLT

C32/LS32
?200mV
?7V

LS33?500mV?15VCMODE22CLOCK

MCLK 17DIVIDER
PD 16POWER DOWN
9HPFEHIGH PASS FILTER ENABLE
BKPF-106A4-3