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Blockdiagram - Philips 70DCC600 Service Manual

Digital compact cassette recorder
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BLOCKDIAGRAM
w
a.
~
ATA1
SOl)
)
WS), SBDA (DAAB), SBEF (EFAB)
C
D
A, LT ADAS, LT DAI, LT DEQ, LT DDSP
DATAC,LTSBC
A
log
n.
REC in
relay
7-
p
-
p
-
[>
S
ADC
AK5339
+6dB
+16dB
REC.BALANCE
REC. LEVEL
T
DRAM
256'5
256ls
IlS
adaPtor~
MN41464
fDl
fDl
r ' - '
G
f
10
WRITE AMP.
1
dJF
SBF
TDA1316T
Digital in
SAA2001
h
1
DAI
left
e
ADAS
e
' - -
SBC
ERCO
DDSP
[>
Digital out
M51581P
IlL
SBF
r
SAA2011
SAA2021
SAA2031
;::;::
SAA2041
!
Gl
LTC·BUS
N
I
I
1
SAA2001
I AUXcurr.
Ir
LOOP
~nht
FILTER
0
I
shift
1
t
t
Ir
25615
READ AMP.
1
vco
TDA1317
i
l -
lfJ
LT·BUS
LT·BUS
DEQ2
0
<J
!
L
SAA2051
~
1
1
~
I
Reference
I
H
Analog
1
vol1aoes
feedback
DC
<J
f---
DOLBY NR
f---
Analog PB
1 HEA
2sts
CXA1331
equalization
~ . -
+1dB
~
Analog out
-
+~B
DAC
dolbyBloll
o~
'i'
A.
SAA7321
dolby c 0
Speed servo
SPEED
I--
search
0
loop filter
Silence
detection
r'-'-'-'-
' - ' - ' - ' - ' - ' - ' - ' - '
G
I'S-interlace: SCL, SWS, SDATA (AD
Headphone out
I
"S-interlace: SCL, SWS, SDA
~~RI
S}
Capstan motor
I
J:.
1602
1604
e
"S-interlace: SCL, SWS, FDA
I--
. CaPSta~ (
r--
1605
1
"---<>
L I
A.
driver
i
motor
yB
u::IIIIIillIIl
e
"S-interlace: SCL, SWS, FDAC (FDA
-=
l-l
I
0
"S-interlace: SBCL (CLAB), SBWS (
MUTE
1
DATAO..7 (EDO..7), FLAGt, FLAG2
L - -
1
ADRSO..7, RASN, WRN, RDATAO, RD
Quick reverse
If-
WDATA, WCLOCK
Peak
Tape end
1706 1707 1708
1
0
TCHO..7 (CHO..7), TAUX (AU X)
detection
detection
sensor
[illJIJ
0
WCLOCK, WDATA
IR-EYE
fDl
1
~ "S-interlace: SCL, SWS, SDA
I
Gl
CLOCK, DATA, RTS
ADC
(6bit)
1
lfJ
LT
CNTO, LT CNT1, LT CLK, LT OAT
I
Gl
LT CNTOC, LT CNTt C, LT CLKC, LT
L.
1---------
F1
IAC)-
DISPLAY &
f---
FRONT-IJP
I
Gl
MAIN-IJP
Wind motor
1
Wj~¢
1
;,~-
""'-
.....
~
TMP87CK70F
80C528
driver
;
motor
_
r
Reel
1
Reel
1
~
sensor1
sensor2
loJ
I
1
KEYBOARD
1
8M Hz
i
!
;0
.
Tray motor
Tray
1436 1437
Easy-link in
driver
I
motor
_
[Iill
Tape
tran~p.
!
and loading
J
Easy-link out
L.
' - ' - ' - ' - ' - ' - ' - ' - ' - '
VB
VA
lAC)
(ACj
0
J
i
J
I
J
ZSJ
ZS
ZS
ZS
ZS
I
11
E
J
I
ZS
,:r
0
~
>-
Mains
I--
Voltage
I--
Mains
·12A
ZS
ZS
filter
selector
transformer
~
+ f
I
T
zsO
ZS
MA~
_._._._._._._._._._.-.-._._._._._._._._._._._._._._._.-'-'-'-'1
POWER SUPPLY
F1
F2
30V
+~P
sv
7V
+7V·
L._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._.J
CS 45 914
13
14

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70dcc600/00870dcc600/05870dcc600/068