Philips 900 Series - Page 18

SIRCUIT
DESCRIPTION
30
31
CIRCUIT
DESCRIPTION
Pin configuration TDA1317
ae ioc
OUTAUX AUXIUARY DATA OUTPUT
Diy Weis Ee
1
2 MUXAUX AUXILIARY MULTIPLEXER INPUT
[eae 0] READ MULTIPLEXER OUTPUT
4 POSITIVE SUPPLY VOLTAGE OGC-PART (+5¥)
5 READ SYNC INPUT
[e¢ | _Rocik READ CLOCK INPUT
ihe
ance
ale
RECORD
ADJUST
8 vss SUPPLY GROUND (V)
(sere rene vorras
[10 ‘| REF REFERENCE VOLTAGE 1
n INAUX AUXILIARY DATA INPUT
pee SN SIRO Se ere ee ee
MAIN DATA INPUT 2
MAIN DATA INPUT 3
DIGITAL GROUND
MAIN DATA INPUT 4
MAIN DATA INPUT 5
MAIN DATA INPUT 6 |
MAIN DATA INPUT 7
POSITIVE SUPPLY VOLTAGE CC-PART (+5V)
< 8 Et
E
REFERENCE VOLTAGE 3
La [or
[a [awn | Fesbenox anrurien weuTGT
a _[ went | esbeacc aneurin ourrurri@aTy SSS
[em anata 66 nt nic
| 27 | MFR2) | FEEDBACK AMPLIFIEA OUTPUT RIGHT 2
a =
[=| veew | snoono Fon FEEDeAGKAMPUFEROOSCOSCSCSSS
[a | wis | FEEDEAGK ANPLRER OUTPUTIET
a
WFLI FEEDBACK AMPUFIER OUTPUT LEFT 1
iNMFL FEEDBACK AMPLIFIER INPUT LEFT
Clem awioseomurir SC
[as [rere erence vores
[2 | veow | POSITWVE supPLY VOLTAGE FEEDEAGK ANPORER WBS
Cae oure an cata onrrurs
[30 eure Tn ata vrs
ee Fig. 19 Readiris board connecior
OR OL
He [ours J} wanton outeura
[a [ean Yea ata outers Connector 1800: DCC-Head interface
[rove a nr
3.1.4 Pin configuration of the Read/Write
board connectors.
in the next tables the pin configurations of the
Read/Write board connectors are shown. See
also the correspondent connector drawing
(figure 19).
ttem 1800 contents 30 pins and the function
is DCC head interface.
Item 1801 contents 18 pins and its function is
Digital board interface
4
Comment z
Test conductor digital
Digital writer (AUX channel)
Digital reader AUX channel (Hot)
Digital writer (AUX channel/CHO)
Digital reader CHO (Hot)
Digital writes (CHO/CH1}
Digital reader CH1 (Hot)
Digital writer (CH1/CH2)
Digital reader CH2 (Hot)
Le
ES
tiive
of
Digital
reader
CH3
(Hot)
R3+
Dia! wis (CRA
PCS
83
530
PHILIPS
SOUND
&
VISION,
BG
AUDIO
-
Service
Training
PHILIPS
SOUND
&
VISION,
BG
AUDIO
-
Service
Training
PCS
83
631
CIRCUIT DESCRIPTION 32
Digital writer (CH4/CHS)
Oigita! reader CH4 (Hot)
| Digital writer (CHS5/CH6)
Digital reader CHS (Hot)
Digital writer (CH6/CH7)
Digital reader CH6 (Hot)
Digital writer (CH7)
Digital reader CH7 (Hot)
Test conductor digital
~| Feedback conductor ACC Right channel
Anaiog reader ACC Right channel
Feedback conductor ACC Right channel
TAI Feedback conductor ACC Left channel
[SCO AT+~~SSCS™S~*&Y:SC Analg reader ACC Left channei
COA Common analog
TA2 a Feedback conductor ACC Left channel
SHIELD Shield connection
Comment
GNOD P Digitat VSS
WDATA Tt ce] Recording data
GNDD | P Digital VSS 4
CHROME fe) CHROME ACC indication
GNDA | Analog VSS
‘
T
\
Analog
piayback
right
=e
ee
=
s
P
Analog
VSS
j
t Analog playback ieft
WRITE-STOBY is} Write amplifier stand-by
ACC/NDCC oO ACC or DCC playback
: (H=ACC, L=DCC)
RODMUX t Elaybark muttiplexed data
GNDD P Digital VSS
RDSYNG © Playback synchronization gare
GNDD P Digital VSS
TCLOCK ce) Piayback/record clock
GNDO
P
Digital
VSS
i
+5VD P 5 Volt digital supply output
+10VD P 10 Volt digital supply output
3.1.5 Circuit dlagram of the Read/Write
board.
In next figure 20 the circuit diagram of the
Read/Write board has been drawn. Mark the
displayed signals of TCLOCK, RDSYNC,
RDMUX and WDATA.
"Note:
P=
Power;
1=
Input,
al=
Analog
Input;
O=
Output;
aO=
Analog
Output;
1O=
Input/Output
A
ee
PCS
83
532
PHILIPS
SOUND
&
VISION,
BG
AUDIO
-
Service
Training