Ic Descriptions - Sanyo DC-X850 Service Manual

[C BLOCK DIAGRAM & DESCRIPTION
ICI02 TC9236AF (CD PLAYER CONTROL)
IC DESCRIPTION
IC102 TC9236AF (CD PLAYER CONTROL)
RR%-t+'
FUNCTIONAL DESCRIPTION
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REMARKS
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Test termtnal. Normally, keep at 'H- level or open.
With pull-up resistor
Test term, nal. Normally, keep at 'H- level or open.
With pull-up resistor
Internal operation mode settlnq input terminal. Wkh Dull-down resistor
2 TESTS I
3 MODO I
4 COFS
o
5 SPOA
o
6 PFCK o
7 SUBSYC
o
8 SUBQ
o
9 SBOK
o
10 xl I
11 Xo
o
12
VDDD -
13
GNOD -
14 BUSO 1/0
!5 BUS1 1/0
16 B(JS2 1/0
17 BUS3 1/0
18 z I
19 BUCK I
20 4MCK o
21 m I
22 CONT I
23 SUBO o
24
CLCK I
25
LOCK o
26 TEST1 I
27 DFCT o
28
TEL2 o
29 TEL1 o
30 TGUL o
31 TGUH2 o
32 TGUH1 o
33 TKIC o
Correction svstem frame oermdic sianal outout terminal. 7.35kHz
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1
36 FMFB
. 35 FMON
. 34 F*OS
. 33 TKrc
. 32 TGCH,
. 3a rGu L
. 29 TEL1
. m TEL2
. 27 DFCT
28 TEST1
. 25 LOCK
Processor status s,gnal output termmal.
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Correction process )udg{ng result, memory buffer capacity, etc
Reqe"erat, on svstem frame period,c smnal cwtout terminal. 7.35k Hz
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DATA
SLICER
A/D CONVERTER
1
Subcode svnc sianal outcwt terminal.
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Subcode Q data output terminal.
$ubcode Q data CRC check adpstmg result output terminal.
The ad[ust!na result M
OK ~t"H" level.
MOD2
w
69
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b
1
mln r,
70
WDCK
CHCK
BCK
AOCT
Crystal oscillator connecting terminals.
Crystal osollator connecting terminals.
1~
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.
Ofg,tal supply voltage terminal ( + 5V)
Dtgital qround termmal.
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CKSE
DoUT
TEST2
m
EMPH
TEST 3
MCK
Command and data sendina Ireceivina incwt /o"tout termomls.
I Schmitt ino"t
Command and data sending /receiving input loutput terminals.
Schmitt input
Command and data sendong /receiving input /output terminals.
Schmitt input
Command and data sending /receiving inp"tlcmtp"t terminals.
Schmitt input
.
Command and data sending /recerving chip enable signal input terminal.
The bus line becomes actwe at 'L- level.
Schmitt input
Command and data sending /receiving clock input terminal. Schmitt input
4!4 clock output terminal. 4.2336 MHz
Reset input terminal. The internal system is reset at 'L- level.
With pull-up resistor
$ubcode Q data control bit updata inhibiting signal input terminal. Emphasis, copy, channel
Updata IS inh!btted at 'H- level.
information
Subcode P - w outrwt termmals.
Subcode P - W d&+ readout clock input terminal.
Lock status output terminal. If a sync pattern under EFM signal cannot be
detected for 1lms continuously by runaway detection in formation, this
terminal IS put at 'L" level.
Test terminal. Normally, keep at "H" level or open. Wtth pull-up resistor
Defect detection $!gnal output terminal.
V REFwhen defect is detected. NOrmalfy. HIz. (Hiz = Hi inpedance)
Tracking gain adjusting analog switch output terminals. VflEF or H12,
Trackmq qain adjwtlnq analoq wwtch outcmt termlnal$. V,c, or HIZ.
Tracking servo loop low frequency phase compensator change-over analog I
sw!tch output term, nal. HIZ (gain up) when detect)ng shock. Normally, VREF.
Track]ng servo loop middle Ihlgh frequency phase compensator change.
over analog sw!tch output terminals
HIZ (gal. "p)when detect!ng shock. Normally, V,E,
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TGUH1 is used at normal regeneration a"d TGUH2 k used at dcw~e
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speed regeneration
'\,
Tracking actuator kick s,gnal output terminal.
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Kicks in the outer c,rcumfere"tral d,rect,on at "H. level a"d in the i""er
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c!rcumferentlal direction at '"L" level
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-48- -49-