EasyManuals Logo
Home>Technics>Amplifier>SE-CH770

Technics SE-CH770 Service Manual

Technics SE-CH770
33 pages
To Next Page IconTo Next Page
To Next Page IconTo Next Page
To Previous Page IconTo Previous Page
To Previous Page IconTo Previous Page
Page #29 background imageLoading...
Page #29 background image
‘r-
SL-PS770A
SL-PS770A
I
HReplacementPartsList
Icsol (MN64733)
Notes:‘Importantsafetynotice:
ComponentsidentifiedbyAmarkhaveapecialcharacteristicsimportantforsafety.
Furthermore,specialpartswhichhavepurposesoffire-retardant(resistors),highqualilysound(capacitors),low-noise(resistors),etc.areused,
Whenreplacinganyofcompon8nts,b~suratouseonlymanufacture’sepecifiadpartsshowninthepartslist,
*ThaparenthesizedindicationsintheRemarkscolumnsspecifytheareas.(Refertothecoverpegaforarea,)
Partawithouttheseindicationscanbeusadforallareas.
RamotaControlAss’y:Supplyperiodforthreeyaarsfremterminationofproduction.
*[MB]IndicatesinRemarkecolumnspartsthataresuppliedbyMBV,
*Warning:ThisproductuaesaIaserdiode.Refertocautionstatementsonpaga2.
*ACHTUNG:DieLasereinheitnichtzerlegen.
DieLaserelnheitdarfnurgegeneinevomHerstellerapezifizlefleElnheitausgetauechtwerden.
*The“(SF)”markd6not6sthestandardpart.
Pin Terminal~.
No. Name
Function
Pin
Terminal
No.
Name
I/o
Function
22
ZFLiB
~
Outputtheinternaldetectorsignalfor
L-ch-m
I
I I
1 PD
1—]No
used,open
21
‘DpOL1–l~used(cOnneCttfJGND)
I 1 1
23
NC
IIConnecttoGND
3
TXOUT
o 128
fssynchronizationsignaloutputfor
TXIN
24
ALLOWo
No
used,open
25
CL384 o
4 Vss
ConnecttoGND
5
Xo
0’ ND
used,open
6
xl
1
Inputforexternalclocksignal
7
VDD
I
Powersupply(+5V)
26
LRPOL I ConnecttoVDD
27
DEO
I ConnecttoGND
28
DEI
I De-emphasismodeselectsignalinput
29
Vss
ConnecttoGND
, ,
I
Ref.No.
I
PartNo.
I
PartName&Description
I
Remarks
II
Ref.No.
I
PartNo.
I
PartName&ascription
I
Remrks
I
~lQ892,893 !2SA933SQRIWNSISTOR
I
8 LP
o LTchpositive-phase(PWM)detection
signaloutput
9
LN
o L-chnegative-phase(PWM)detection
signaloutput
I
I
1 1 11 1 I
!
I
I I lINTEGRAmDcIRcuIT(s)I II I I I I
HI
I Noused(ConnecttoGND)
I
I I ,
1 1
! I
I
DIODE(S)
Icll LM2940T5
I.C,REGULATOR
A
IC401
UPD78042A014LC,SYSTEMCONTROL
[ml
D1l-18
1D3-E
DIODE
AIMBI
32
RSTB I Resetsignalinput
33 IE
Noused(ConnecttoGND)
34
NC
35
TPI
o Noused,open
36 TP2
10 Vss
ConnecttoGND
11 NC
Noused(Connectto
GND)
12
NC
- No
used(ConnecttoGND)
I
t
I 1I !
I ,
I
IIC651 IRCDHC-278N11.C,REMDTESENMR
I
IID19
/tA44330MTAIDIODE
1A
I
I
11C701IAN8305SBEI
ILC.SERVOAW I
rhfBl ItD21.22 lM4082MTA
IDIODE
1A
1
1
1-
11
I
1 t
IC702 l~662713RGlIl.c,SERWPmESWR
IIMBI
\!D23,24
lMA4056hfTA
IDIODE
1A
13”I Vss
1– lConnecttoGND
IC703
\AN8389sEl
/1.C,~ORDRIVE
IC781 ITA7291SA11.C.~TORDRIVE
D25,26 11ss254TAIDIODE
D31.32 lIss254TA
IDIODE
I
I I
14
RN
o R-chnegative-phase(PWM)detection
sianaloutDut
37
SEL2
38
SEL1
I NiIused(ConnecttoGND)
39 FSEL
, InputtheMASHclockmodeselect
signal(“H”:64fs)
40
TXIN I Digitalaudiointerfacesignalinput
Icml MN64733LC,DIGITALFILTER
ICM2,803AN96AD8SE21.C,D/ACONWRTERINTERFACE
IC8D4-806LM833M63LC,DIFFERENCEW.
ID33,34lhfA4091-M
IDIODE
I
I
I I
15
RP
o R-chpositive-phase(PWM)detection
signaloutput
D41,42llss254TA
IDIODE
D51
Iw4039MTA
IDIODE
1 I I
16 VDD
I
lPowersupply(+5V)
IC871
8A4560N
LC,HEADPNNESAW.
1C891
BA4560FEI
I.C,L.P.FILTERAMP.
[MB]
D301-305ISS254TA
DIODE
D401 M44056MTADIODE
A
D601-6061SS254TA
DIODE
17 Vss
ConnecttoGND
18 CSEL
I Noused(ConnecttoGND)
19
VDD
I Powersupply(+5V)
20 BSEL
I Noused(ConnecttoGND)
21 ZFLRB
o Outputtheinternaldetectorsignalfor
R-ch-m
41
SD
I Serialdatainput
42
LR I L-ch/R-chclocksignalinput
I I
\TRANSISTOR(S)
I
D651 SIR-305LCLE.D.
D652 SLR-305CCLE.D.
0653
SLR-305M
L.E.D.
Itij
BCK
I I lSerialdataandbitclocksignalinput I
44
PD2
o
Outputthebitclocksignal,64fsphase
comparitionsignal
1
1 1
011
12SD2037EFTAITRANSISTOR
1A
Q12
2SB1240-P
TRANSISTOR
A
Q13 2SD1862QRTV6TRANSISTOR
A
Q15 2SA933SQRTRANSISTOR
A
10701
11ss254TAIDIODE
I
I
D8ul,w2 llss254TA
IDIODE
D831-8381SS254TA
DIODE
Q16 12sB123ww6ITRANSISTOR
1A
Q17 12SC1740SQTRANSISTOR
1A
D841-848llss254TA/DIODE
D851
IID3-E
IDIoDE
I[MB]
Q18
2SA933SQR
TRANSISTOR
A
Q19,20
2SD1450RTAWSISTOR
Q21
DTA124ESTPTRANSISTOR
0861 ISS254TAIDIODE
D891 11ss254TA
IDIODE
IQ22 12sc1740wlTWYSISTOR
I I
IVA81A8LEResistor I
I
Q23
2SD2037EFTATWNSISTOR
A
Q31
2SD1862QRlV6
TRANSISTOR
A-
Q32 2SB1240-P
TRANSISTOR
A
VR871
ESVCU1AO16A15V.R,HEADPHONESLEVEL
[ml
Q33 2SK982TPE2
TRAIYSISTOR
A
Q34 2SJ148TPE2TW’SISTOR
A
Q41
DTA124ESTPTRANSISTOR
CWPUNENTCOMBINATION(S)
ZB31-834EXCELDR35VC~BINATIONPART
Q51,52 IZSC1740W
ITRANSISTOR
Q401,40212sD1862QRn6ITRANSISTOR A
Z851 /EXCELDR35VICWBINATIONPART
Q751
2SA933SQR
TRANSISTOR
Q752 2SC1740SQ
TRANSISTOR
QBol,
802 2SC1740SQ
TWSISTOR
I I
ICOIL(S)
I I
11841 18LQzN3R3KL-DICOIL I[M81 I
lQ803,80412SD1450WAlT8ANSIST0R
I
IIL871-873IRLQZN3R3KL-DlcoIL
IIMBI
I
Q805,W6 IDTA124ESTPlTRANSIS~R
Q851
IDTc124EsT
ITRANSISTOR
1874 IRLQ2N4R7KL-DlcOIL
1~
1
DTA114ESTPTRANSISlilR TRANSFO~R(S)
T1 R’TP1K4B020~ERTRANSFORMER
AMI
W71,872 2SD1450~ATRANSISTOR
Q891
2SC1740SQTRANSISTOR
–34-
- 33–

Questions and Answers:

Question and Answer IconNeed help?

Do you have a question about the Technics SE-CH770 and is the answer not in the manual?

Technics SE-CH770 Specifications

General IconGeneral
BrandTechnics
ModelSE-CH770
CategoryAmplifier
LanguageEnglish

Related product manuals