Sony CDP-H3700 User manual

SER[|IGE
MANUAL
This
setistheCDplayer
section
inMHC-2700/37OO.
AEP Model
UK Model
ModelNameUsing
Similar
Mechanism cDP-H3600
CDMechanism
Type CDMT3BA.5BD3
Optical
Pick-UpBlockType BU.5BD3
Sy!t.m
Lr3et
Leloi outpul
SPECIFICATIONS
Comp.ct dllc dlgltel audio
3y!tam
Srmlconductor ltsa?
(i.= 78{)
nm)
Emi!3ion
duration:
conUnuou!
Mrr. 44.6
,lW'
'Thl! output
it thevrluo
merlurcd at ! distanceof
lbout æ0 mm trom th€
obrcctlva
lcn! lurface on
thc Oprlcll Plck-upBlock.
Signll to nolsc ratloMorothln 90dB
Oynamlc
rangc Morathln 90dB
l{ermonlcdl.torllon Lcc! lhan 0.05%(et 1kHr)
Chenncllope?ltlon Morc then9()dB
Outputlsvsl 2V (.t 50kllohm3)
Losd lmpsdrnc! Morolhan 10kilohmg
outputs D|GITAL
OUT
OPflCAL
(optlcal
oulputconnoclor):
w!v. leneth660nm,
outPutleval-18 dBm
Deslgn end specltlcatlom lublecl to chang€
wlthoul nollco.
Forthe United
countries. Kingdom
and
Europaan
ctl88rL gERPROOUCT
urol(^N I t SERI.A|TE
Kt-A8g I LA8EtoUrPAftT
This
appliance
isclassified
as
aCLASS
1
LASER
Producl
The
CLASS
1LASER
PRODUCTlabelis located
ontherear
exterior.
SAFETY.BELATED
COMPONENTWARNINGII
coMpoNENrs
TDENTTFTEo
By MARK
2\ on oorreo
LINE
wrrH manx 7\ oN THE
scHEMATlc
DTAGRAmS
AND IN THE PARTS LIST ARE CRITICAL TO SAFE
OPERATION. REPLACE THESE COMPONENTS WITH
SONY PARTS WHOSE PART NUMBERS APPEAR AS
SHOWN IN THIS MANUAL OR IN SUPPLEMENTSPU&
LISHEO BY SONY.
COÙIPACT
DISC
PTAYTR
SONY

TABLE
OFCONTENTS
Section Page
I. GENERAL
1-1. Partsldentification
. ......3
2. TESTMODES
2-1. TestMode
of Display
Microcomputer
(IC401)
....4
2-2. Test Mode
of CDSystemController
(1C202)
.. ....4
3. ELECTRICALBLOCK
CHECKING .........5
4. DIAGRAMS
4-1. PinDescription.... .......7
4-2. BlockDiagram.... .......9
4-3. PrintedWiringBoards ..........12
4-4. SchematicDiagram .......15
4-5. SemiconductorLead Layouts ...........22
5. EXPLODEDVIETYS
5-1. Chassis ..........23
5-2. CDBlock
(CDM13BA-58D3) ...... .....24
5-3. Optical
Pick-UpBlock
(BU-5BD3)
...... .... ... .25
6. ELECTRICALPARTSLIST ........26
NOTES
ON HANDLINGTHE OPTICAL
PICK.UP
BLOCK
OR
BASE
UNIT
The laser diode in the optical pick-upblock may suffer
electrostatic breakdownbecauseof the potential diference
generated
by the chargedelectrostaticload,etc.on clothing
andthe human body.
During repair, pay attention to electrostaticbreakdownand
also
use
theprocedure in theprintedmatter whichis included
in the repair parts.
The flexible board is easilydamagedandshouldbehandled
with care.
NOTESON LASERDIODEEMISSION
CHECK
The laser beam on this model is concentratedso as to be
focused
onthe discreflective surface
by theobjective lens
in
theopticalpick-up block.Therefore,whenchecking
thelaser
diodeemission,observefrom more than30cm
awayfrom the
objectivelens.
LASERDIODE
ANDFOCUS
SERCHOPERATION
CHECK
1. Make POWERswitch on with no disc inserted
anddisc
tableclosed.
2. Confirm that thefollowing operationisperformed
while
observing
the objectivelens.
oConfirm that laserbeamis spread.
oUp anddown motion of the objectivelens.
(3times)
Title
-2-

I cpP-H3700
sEcfloN I
GENERAL This
section
isextractedfrom
instructionmanual
O l-1. PARrs
tDEt{rtFtcATlof{
fl Oisctray
El CDoPeration
buttong
ê : OPEN/CLOSE
>ll : Pleyrpeus€
l: StoP
<<0<<DD0>> : Manualsearch(when
keptdepræsed)/Autometic
Muslc
Sengor(whenPressed)
@ Display
window
El EDIT/TIME
FADE
bunonQ Q
El cHEcK bulton
, ru,,l

2-L. Test tlode of Display Microcomputer (tC401)
ConnectPin @of IC40l to ground
andtum ON thepOWER
switch,
thus
you
cantestthe
following
3tests.
(f)Nl FL tubeON
This
modeis
acruared
immediately
afrer
ruming
ONthe
pOWER
switch.
(2)FL tubc scgmentcheck
This
mode
isactuared
bypressing
the
@ keyinthestate
of(l).
Everytime the
@ key is pressed,
the-segmenæ
areindicated
scquentially
from thesegment
a. WhenthelastI segmentis
displayd keyingin isnolonger
acceptedwhile
continuing
the
lighting-up
stateof thelastsegment.
Conditions
arenormal
provided
alllampslighr
upinthefollowing
order.
(3)KEY check
Thismode
iseffected
bypressing
the@keyinthe
state
of (l),
whileindicating
"l." Every time
anew
keyispresscd
subse-
quently,
theindicated
numberis incremented.
Conditions
arc
normalprovided"7" is indicatedwhenall typesof keysare
prcssed.
Evenif akey
isprcssed
again,it isnot
counted.
. To leave
the mode(2) or (3), press
the@andfifl keysin
duplication,
thercby
themode
rerurning
toall ONmode.
3G
i
(o
sEcTroN
2
TEST
MODES
2-2. Test tlodes of CD System Controiler (tC2O2l
(I)ADJUSTmode
When
thismode
iseffected,
the
machineisoperated
normalty
except
forthefollowing.
. whenpin {D,
IC20l (ADJ)is ser
ro..L" afterrurning
oN the
POWER
swirch:
I. GFSisnolonger
monitored
during
PLAY,PAUSE
orSEARCH,
while
not
sropping
even
with
GFS
rcmaining
srillar.L" (NG).
2. Nohigh-speed
feeding
isactivated
during
SEARCH.
3. Focus
gain
isreset
tonormal
gain
duringPLAY (normally,
the
gainislowered
toreducenoisewhen
FOCUS
islocked).
. When
Pin
@,IC20t(AFADJ)
issetro..L"aftertuming
ONthe
FOWER
switch:
l. Regardless
ofPin@
(ADJ)
ofthe
CLV-Sfixedfunction,
the
CLV
mode
during
PLAY becomes
CLV-S(rough
servo)onlywhile
Pin
eremains"L".
(2)AFADJUST
mode
In thismode,
it ispossible
tochecktheinterface
between
the
display
micon
(IC4OI)
and
CDsyscon
(IC20l).
. SetPin
@,IC20l (AFADJ)
ro"L" beforerurning
ONrhe
FOIryER
switch.
l. Everytime
the
@key ispressed
afterturning
Onthe
pOWER
switch,
indication
ontheFL tubeisswitched
conespondingly.
Conditionsare normalprovidedthe indicationrcpeats
the 4
patterns
including
alllamp
ON.
T[mON theFOIITER
afterconnectins
[email protected]
6cNp.
All FL tube
lamps
ON mode
Duplicated
pressing
of El and[fl
r.7 18 19 20
-4-

I
sEcTtoN
3
ELECTRICAL
BLOCK
CHECKING
Note :
1. CD Block basically constructedto operatewithout adjus.
tment. Therefore, check each item in order given.
2. UseYEDS-18
disc
(3-702.101-01)
unlessotherwiseindicat-
ed.
3. Use the oscilloscopewith more than 10MO impedance.
4. Clean an object lens by an applicator with neutral deter-
gent when the signal level is low than specified value
with the following checks.
SCurveCheck
BDboarcl
rP(FEO)
rP(vc)
Procedure :
l. Connect oscilloscope to test point TP (FEO) on BD
board.
2. Connect between test point TP (FES) and TP (VC) bv
leadwire.
Turned Power switch on and actuate the focus serch.
(actuatethe focus serchwhen disctable is moving in and
out.)
Check the oscilloscopewaveform (S curve) is symmetri.
cal between A and B. And confirm peak to peak level
within 3+ 1Vp-p.
S curve
wavelorm symm€try
within
3 tlVÈp
5. After check, remove the lead wire connectedin step 2.
Note : o Try to mesure several times to make sure that the
ratio of A : B or B : A is more than 10: 7.
o Take sweep
time aslong aspossible
and light up the
brightness to obtain best waveform.
RFLevelCheck
BD board
TP(RFO)
rP(vc)
Procedure :
1. Connect oscilloscope
to test point Tp (RFO) on BD
board
2. Turn Power switch on.
3. Put disc (YEDS.l8) in and playback.
4. Confirm that oscilloscopewaveform is clear and check
RF signal level is correct or not.
Note:
Clear RF signal waveform meansthat the shape"O" can be
clearly distinguished at the center of the waveform.
RF
signalwaveform VOLT/DlV:
20OmV
TIME/O|V:
5O0nS
level :
I 2:3:lVtp
E-F
Balance
Check
BP-
rP(TEO)
TP(VC)
l. Connect test point TP (ADJ) to ground and Tp (TES) to
TP (VC) with leadwire.
2. Connect oscilloscope
to test point TP (TEO) on BD
board.
3. Turn Power switch on.
4. Put disc (YEDS-l8)in and playback.
5 Confirm that the osilloscope
waveform issymmetrical on
the top and
bottom in relation
to 0V,and
checkthislevel
Traverse
oscilloscope
symrnetry
T
1
À
oscilloscope
oscilloscope
oscilloscooe
6. Remove the lead wire connected in step I
2+
lVpp

RF PLL Free.run Frequency Check
Procedure:
1. Connectfrequency
counterto testpoint (PCK)with lead
wire.
Main
board
TP(PCK)
frequency
counter
2. TurnPowerswitch
on.
3. Confirmthat
reading
onfrequency
counter
is
4.3218MH2.
Focus/TrackingGain
This gain hasa margin, so evenif it is slightly off.
Thereis noproblem.
Therefore,do not perform,this adjustment.
Pleasenote that it should be fixed to mechanical center
position
when
youmoved
anddonotknoworiginal
position.
(MAIN
Board)
-Component
Side-
(MAIN
Boardl
-Conductor
Side-
Checking Location:
(BD Board)
-6-

cDP.H3700
sEcfloN
4
DIAGRAMS
4.I. PINDESCRIPTION
. lC2Ol
GDSystem
Controller
(rPD75116GF-F21-3BE)
Functions
effectedbythe
captioned
controller
irrcludelCl0l (RF
signal
processing,
sewo),IC202
(DSP,
digitalfilter)
andloadingconrolinrhe
CDunit,dataexchangewith
IC4OI
(display
controller),
audio
busentry,
etc.
PinNo. Pin
Name vo Description
t-2
3
+6
GMUTE,
GCLR
DFCLK o
o
o
Notin usc with themodel
(open).
Display
daa transfer
clockoutputtoIC4OI(display
micon)
IC204
(CXD2554M)
connolouçut.
7
8
9
t0
RBET
x2
xt
DFCTSW
I
I
I
o
System
rcsetinput."L": Reset
Clockinput
Clock
input
(4MHz)
DEFECT
circuitON/OFFswitching
outputofICl0l (CXAI372Q).
It istumed
OFF
("H") tofocus-search
theDISCflawdetectioncircuit.
ll
t2
r3
l4
l5
AMUTE
BSOUT
AFADJ
LDON
XLT
o
o
I
o
o
Muting
controloutput.
"H": Muæ
Audio
busouput
Test
modeinput. Various testoperations
arceffectedupon
"L" afterturning
ONthe
POWER.
Optical
pickup
laserdiodÊ
ONpFF switchingoutput.
"H": ON
Serial
datalatch
outputtoIC202
(CXD2500AQ)
t6
t7
IE
t9
20
CLK
DATA
MODE
ADJ
GFS
o
o
I
I
I
Serial
data
transferclockoutputto IC202
(CXD2500AQ)
Serial
dataoutputtoIC202
(CXD2500AQ)
Notinuse
withthemodel
(CND)
Test
modeinput.Upon'L," GFScheckingis
disabled
while
continuously
rctating
thespindlenomatter
whetherframe
synchisissuedduringPLAY,
PAUSE
orSEARCH
GFSsignalinput
from
IC202
(CXD2500AQ).
"L": NG "H": OK
2r
22-23
24
25
FOK
LODOUT
LODIN
I
o
o
o
Focus
OKsignalinputfromIClOl (CXAl372Q). "H": OK
Notinuse
withthemodel
(open)
OuputtorotateM29l (loading
motor)
intheloadingoutdirection.
*l
OuputtorotateM29l (loading
motor)
intheloadingindirection.
rl
26
27
28
29
30
Vss
IW
oursw
KEYREQ
BSIN
I
I
I
I
Power
terminal
(GND)
5292
(Loading
inswitch)input
S29l(Loading
outswirch)input
Key
datarcquestinputfromIC4OI
Audio
businput (display
controller)
3l-36
37
38
39
N
SENS
Tiilm,
DÆ
I6BIT
I
I
I
I
Notinuse
withthemodel
(GND)
SENS
inputfromICl0l (CXAI372Q)
andIC202
(CXD250AQ)
Notinuse with
the
model
(pull
up)
IC202
(CXD2500AQ)
digitalfiltermode settinginput.It isfixed
at16bit,4fswith
themodel
(pull
up).
Notinusc withthemodel
(GND)
4l
42
43
4
45
-56
SUBQ
sQcLK
scoR
I
o
o
I
o
Subcode
QdatainputfromIC202
(CXD2500AQ)
Notinuse withthemodel
(open)
Subcode
Qdatareadoutclock
ouput tolC202
(CXD250AQ)
Subcodc
syncS0
+ Sl detection inputfromIC202
(CXD2500AQ)
Notinuse withthemodel
(open)
57
58
59-62
$-a
N.C.
Voo
DPDATA3.O
I
VO
o
Notinuse withthe
model
(+5V)
Power
terminal
(+5V)
Key
data
input
anddisplay
dataouputwithIC,tOl
(display
controller)
Notin use with themodel
(open)
*l Loadingmotorcontrol
IN OUT BRAKE
LODOUT@ LHH
LODIN
@HLH
-7-

ANK-TOO SECTION
5-1. MOUNTING
DIAGRAM
. See
page
44 and 45for semiconductorlead
TFUSE
IREC
BOARD)
5
3
DIAG
layouts
and
-\qz
rct04
r06
l2l
t05
tot t02
a,q,ffil.rlï,r
-46-

cDq-He700
. fC4Ol Display
controller (qPD752OGGF-716.38E)
Incharge
ofdisplayingthe
FLtube
and
keying
in,itexchanges
data
withthe
IC20l (CDsystem
conrroller)in4-bit parallel
mode.
Pin
No. Pin
Name UO Description
I
2-ll
12-t5
16,
t7
l8
RESET
Gr-r0
I,k
VLOAD
I
o
o
o
System
reset
input."L": Reset
Digital
oupurtorhe
FLtube
Notinusewith
themodel
(opcn)
FLtubesegment
output
Power
supply
fortheFL tube
conrroller
(builtin)
G32V)
l9
20-25
26
27,28
29,30
VPRE
J-e
Voo
d,c
b,a
o
o
o
Power
supply
fortheFL tube
predriver
G3.5V)
FLtubesegment
output
Power
terminal
(+5V)
FLtubesegment
output
FLtubesegment,
key
scanoutput
31,32
33
34
35
36
TEST
SELECT
BSIN
DPCLK
I
I
I
I
I
Not in usewith themodel (GND)
Testmodeinput."L": Testmode
Not in use
wirh rhemodel (pull up)
Not in usewith themodel (pull up)
Display dara
tansfer clock inpurfrom IC20l (CD system
conrroller)
37,
38
39
N,4l
42
43-4É, KEY REQ
DPDATAG3
I
o
o
o
UO
Notinusewiththemodel
(pullup)
Notinuæwirh
themodel
(pullup)
Notinusewiththemodel
(open)
Key
data
rcqucst
ourpur
toIC20l (CD
sysrem
controller)
Key
data
ouputanddisplay
data
inputwithIC20l (CDsyslem
conrnoller)
47
-50
5r,52
53,54
55
56
KEYG3
XI
I
I
I
o
I
Key daa input
Not in usewith themodel (pull up)
Not in use
with themodel (GND)
Not in usewith themodel (open)
System
clockinput
(4.19
MHz)
57
58
59
60-6/,
x2
Vss I
I
o
System
clockinput
Power
supply
terminal
(GND)
Notinusewithrhemodel
(GND)
Notinusewirh
rhemodel
(open)