MICROFILM
SERVICE MANUAL
SPECIFICATIONS
SystemCompact disc digital audio system
Laser diode propertiesMaterial: GaAlAsWavelength: λ = 780 nmEmission duration: ContinuousLaser output: Less than 44.6 µW(This output is the value measured at a distanceof 200 mm from the objective lens surface onthe optical pick-up block with 7 mm aperture.)
D-A conversion1-bit quartz time-axis control
Frequency response20 - 20,000 Hz
+1–2
dB (measured by EIAJ CP-
307)
Output (at 4.5 V input level)Line output (stereo minijack)
Output level 0.7 V rms at 47 kilohmsRecommended load impedance over 10kilohms
Headphones (stereo minijack)Approx. 5 mW + Approx. 5 mW at 16 ohms(Approx. 3 mW + Approx. 3 mW at 16 ohms)**For the customers in France
Optical digital output (optical output connector)Output level: –21 - –15 dBmWavelength: 630 - 690 nm at peak level
Power requirementsFor the area code of the model youpurchased, check the upper left side of thebar code on the package.• Two Sony NH-14WM rechargeable batteries:
2.4 V DC• Two LR6 (size AA) batteries: 3 V DC
• AC power adaptor (DC IN 4.5 V jack):model:US/Canadian 120 V, 60 Hz
AEP/E13 model: 220 - 230 V, 50/60 HzUK model: 230 - 240 V, 50 HzTourist/E33 model: 100 - 240 V, 50/60 HzHong Kong model: 220 V, 50/60 HzChinese model: 220 V, 50 Hz
• Sony DCC-E245 car battery cord for use oncar battery: 4.5 V DC
Battery life* (approx. hours)(When you use the CD player on a flat and stablesurface.)Playing time varies depending on how the CDplayer is used.
Two NH-14WM 25(charged forabout 4 hours**)
Battery case (two 40alkaline batteries)
Rechargeable batteries 62NH-14WM and batterycase (two alkalinebatteries)
* Measured value by the standard of EIAJ(Electronic Industries Association of Japan).
** Charging time varies depending on how therechargeable battery is used.
Operating temperature5°C - 35°C (41°F - 95°F)
Dimensions (w/h/d) (excludingprojecting parts and controls)Approx. 127.2 × 19 × 130.1 mm(5 1⁄8 × 3⁄4 × 5 1⁄8 in.)
Mass (excluding rechargeablebatteries)Approx. 167.5 g (6.0 oz)
Supplied accessoriesAC power adaptor (1)Headphones/earphones with remote control (1)Rechargeable batteries (2)Battery carrying case (2)Carrying case (1)Battery case (1)AC plug adaptor (1)** Supplied with Tourist and E33 models
Design and specifications are subject to changewithout notice.
• AbbreviationE13: 220 - 230 V AC area in E modelE33: 100 - 240 V AC area in E model
PORTABLE CD PLAYER
D-E990/EJ915
Photo: D-E990
US ModelCanadian Model
AEP ModelUK Model
E ModelChinese Model
D-EJ915
Tourist ModelD-E990
Model Name Using Similar Mechanism NEW
CD Mechanism TypeUS : CDM-3022EBGOther : CDM-3022EBA
Optical Pick-Up NameUS : DAX-22EGOther : DAX-22E
Ver 1.0 1999. 10
D-E990/EJ915
– 19 – – 20 – – 21 – – 22 –
5-5. SCHEMATIC DIAGRAM • See page 15 for Waveforms. • See page 23 for IC Block Diagrams.
Note on Schematic Diagram:• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolyticsand tantalums.
• All resistors are in Ω and 1/4 W or less unless otherwise
specified.• % : indicates tolerance.• C : panel designation.
• U : B+ Line.• Power voltage is dc 4.5 V and fed with regulated dc power
supply from DC IN jack (J401).• Voltages and waveforms are dc with respect to ground in
playback mode.no mark : CD PLAY
• Voltages are taken with a VOM (Input impedance 10 MΩ).Voltage variations may be noted due to normal produc-tion tolerances.
• Waveforms are taken with a oscilloscope.Voltage variations may be noted due to normal produc-tion tolerances.
• Circled numbers refer to waveforms.• Signal path.J : CD PLAY (ANALOG OUT)c : CD PLAY (OPTICAL OUT)
• AbbreviationFR : French model
Note:The components identi-fied by mark 0 or dottedline with mark 0 are criti-cal for safety.Replace only with partnumber specified.
Note:Les composants identifiés parune marque 0 sont critiquespour la sécurité.Ne les remplacer que par unepièce portant le numérospécifié.
(US)(EXCEPT US)
– 23 – – 24 – – 25 – – 26 –
• IC Block Diagrams
IC351 TA2120FN (EL)
IC402 MPC17H71MTAEL
+ –+–+ –
23 20 19 18 17 16 15 14 13
2 3 4 5 6 7 8 9 10 11 121
24
BIAS BEEPPWSW
MTSW
ALCDET
ATTSW
PWCSW
OUT B OUT A
BEEP IN
BST
PWB
PWC
BSTNF
ADDOUT
RF IN PWCSW
OUT B OUT C OUT A PWRGND
MIXOUT
ALCIN
ALCDET
ATTSWIN AIN BGND
MTTC
MTSW
PWSWBIAS
BIASIN
BSTSW
BSTOUT
VCC
ADDA
ADDB
2122
PWA
ALC ALC
1
2
3
4
56789
1011
1213
14
15
18
1920
21
22
23
24
25
26
2930
2728
17
16
MODE CONTROL ROTATIONDETECTORMODE CLOCK REGULATOR
HOLD PWM REGULATOR
MODE TIME REGULATOR
CLOCK DIVIDER
STATE MACHINE
STARTUP PATTERNGENERATOR
PATTERN REGULATORSEQUENCER
CPU INTERFACE
SERIAL PORT
PARALLEL INTERFACE
OPERATION MODE
OPERATION MODE REGULATOR
TEST MODE REGULATOR
PREDRIVER
FEEDBACK PATTERNGENERATOR
BEMFSEPARATOR
OVERFLOW REGULATORPHASE DELAY REGULATOR
FEEDBACK RESISTOR
PHASE DECODER
PWMDECODER
FG
SYNC
PWM
POL
TESTRST
DATALTCH
CLK
VCAGND
OEBVDU
U
PGDUV V
VDVW
W
PGDWVG
DGND
W1
OE
WP
VP
UP
BEMFDETECT
V1
U1
COM
TST0TST1TST2TST3NC
IC401 MPC17A52ZFTA IC601 CXD3027R
21 22 232019
18
1716
15141312
11
10
9
876
5
4321
71 70 69 6872
PREDRIVER
H BR
IDGE
ON
H BR
IDGE
ON
H BR
IDGE
ON
SYSTEMCONTROL,
INPUT/OUTPUT
CONTROLLER
VGVC VC
VC
VC
VC
VC
VC
VC
VC
VG
VG
VG
VG
VG
VGDCINVC
VC
VIN
VC VG
VC VG
VIN VIN
VC
DCIN
VG
VG
D1 (DRV MUTE)
25 26 27 2824 29 30 31 32 33 34 35 36
37383940
PREDRIVER
CLOCK
CONTROLLER
41424344
5051525354
4645
474849
SWITCHINGPOWER
CIRCUIT 2
SWITCHINGPOWER
CIRCUIT 3
BAND GAPREFERENCE
SUBREFERENCE
PRE-DRIVER
DOWN SIDEPRE-DRIVER
DOWN SIDEPRE-DRIVER
UP SIDEPRE-DRIVER
UP SIDEPRE-DRIVER
SAW TOOTHWAVEFORM
OCCURRENCECIRCUIT
LINEAR, CONSTANTCURRENT, CONSTANTVOLTAGE CHARGING
BATTERY CHARGE CIRCUIT
SWITCHING POWERCIRCUIT 1
CHARGING BATTERYVOLTAGE DETECTOR
CIRCUIT
LINEAR REGULATOR
VGPOWER CIRCUIT
VC
67 66 65 64 63 62 61 60 59 58 57 56 55
LOW VOLTAGE DETECTOR
HPI2
HPOU
T2
HPOU
T1
VHP
VD3
VD23
RO2
MGN
D2 FO2
VD12
RO1
MGN
D1 FO1
VD1
RO3
FO3
MGN
D3
HPGN
D
VLG3RF21PAPC
APCREF
VREF
L4RF2
INM2
VG
GND
SYNC
WAKEUPCLOCK
DATALATCHC
FI3RI3
HPI1
FI1RI1FI2RI2
CHGSWRSINM4RF4
DCINDCIN
VCVCPRSTBMODE1
MODE2DTC2DDTC1DINM1RF1
INP1
CHGM
NTBA
TM2
BATM
1
VLG1
O
L1L
PGND
1
L1H
VIN
L2H
PGND
2
L2L
VLG2
OPG
ND3
L3DTC3
RF3
INM
3
D2 (H BRIDGE/HEADPHONE)D3 (HPON)
ERRORCORRECTOR
32KRAM
EFMDEMODULATOR
SUB CODEPROCESSOR
SERVOAUTO
SEQUENCER
D/AINTERFACE
VIBRATIONMEMORY
CONTROLLER+
COMPRESSIONEXPANDER
DAC
SELECTOR
DIGITALOUT
ASYMMETRYCORRECTOR
DIGITALPLL
DIGITALCLV
CPUINTERFACE
OP AMPANALOG SWITCH
SERVO BLOCK
SIGNALPROCESSOR
BLOCK
MEMORY CONTROLLER,BUS BOOST BLOCK
A/DCONVERTER
SERVOINTERFACE
SERVO DSPFOCUS SERVO
SLED SERVO
TRACKING SERVO
CLOCKGENERATOR
LPF
LPF
MIRRDFCTFOK
PWM GENERATOR
FOCUS PWMGENERATOR
SLED PWMGENERATOR
TRACKING PWMGENERATOR
908988878685848382818079787776757473727170696867666564636261
123456789101112131415161718192021222324252627282930
31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60
XOE
A0 – A11
SYSMAMUTE
HPLHPMHPR
PCMDILRCKIBCKI
AOUT1AIN1
LOUT1
LOUT2AIN2
AOUT2
A9A8A7
DVSS
RFAC
XTAO
XTAI
XTSL
VCTL
VPCO
WFC
KGF
SXU
GFM
DS
C2PO
WDC
K
BIASASYIASYO
FILOFILIPCO
PWMILOCKMDP
SDTISCSYSCORSBSOEXCKSDTOXLATCLOKSENSXSOER4M
IGEN
VDD0
COUT
MIR
RDF
CT FOK
PWM
ILO
CKHP
RHP
MHP
LVD
D1C1
76M
DPM
DSSS
TPSF
DRSR
DRTF
DRTR
DRFF
DRFR
DR
FRDRFFDRTRDRTFDRSRDRSFDR
SCLKATSK
SSTPCOUT
FOKDFCTMIRR
VSS1
TEST
TES1
AVDD
0IG
ENAV
SS0
RFDC
E F
120 119 118 117 116 115 114 113 112 111 110 109 108 107 106 105 104 103 102 101 100 99 98 97 96 95 94 93 92 91
XOE
XCAS
D2 D3 D0 D1 XWE
XRAS
A11
A10
DVDD
A0 A1 A2 A3 AVDD
2LO
UT2
AIN2
AOUT
2AV
SS2
AVSS
1AO
UT1
AIN1
LOUT
1AV
DD1
XVSS
XTAO
XTAI
XVDD
BCKI
XOE
XCAS D2 D3 D0 D1 XWE
XRAS
A11
A10
DVDD A0 A1 A2 A3
AVDD
2LO
UT2
AIN2
AOUT
2AV
SS2
AVSS
1AO
UT1
AIN1
LOUT
1AV
DD1
XVSS
XTAO
XTAI
XVDD
BCKI
VDD0
COUT
MIR
RDF
CTFO
KPW
MI
LOCK
HPR
HPM
HPL
VDD1
MDP
MDS
SSTP
SFDR
SRDR
TFDR
TRDR
FFDR
FRDR
VSS1
A VD
D
A GN
D
D VD
D
AVDD
0IG
ENAV
SS0
RFDC E F
RFDCEFBA
VC
CLTVXPCK
A6A5A4
XWREXRDEXEMPXWIHXQOK
AMUTESDTI
XQCKSCSYSCORVSS0SBSOEXCKXRSTSYSMSDTOXLATCLOKSENSSCLKXSOEATSKR4M
A9A8A7
DVSSA6A5A4
XWREXRDEXEMPXWIHXQOK
AMUTESDTI
SCSYSCORVSS0
D GNDSBSOEXCK
SYSMSDTOXLATCLOKSENSSCLKXSOEATSKR4M
BCKPCMDIPCMDLRCKILRCKDOUTVDD2WFCKC2POGFSXPCKXUGFWDCKVSS2XTSLAVDD3ASYOASYIBIASRFACAVSS3CLTVPCOFILIFILOVCTLVPCOVCAB
BCKPCMDIPCMDLRCKILRCKDOUTVDD2WFCKC2POGFS
XPCKXUGFWDCKVSS2XTSL
AVDD3ASYOASYIBIASRFAC
AVSS3CLTVPCOFILIFILOVCTLVPCO
VCAB
XCAS
D0 – D4
XWE
BCKPCMDLRCK
DOUT
XWRE
XRAS
XRDE
XQOKXWIHXEMP
IC602 MSM51X17400D-10TFSR1
IC802 CXD751-103R
ON CHIPVBB GENERATOR
TIMINGGENERATOR TIMING
GENERATOR
REFRESHCONTROL CLOCK
INTERNALADDRESSCOUNTER
COLUMNADDRESSBUFFER
11 COLUMNDECODER
ROWADDRESSBUFFER
ROWDECODER
WORDDRIVER
WRITECLOCK
GENERATOR
1
234
5
67
98
101112
13
25
26
24
23
22
11
4 4
4
115
11 11
1819
171615
14
2021
MEMORYCELLS
SENSAMPLIFIER
I/OSELECTOR
OUTPUTBUFFER
4 4
46
INPUTBUFFER
VCC
DQ1DQ2XWE
XRAS
NC
A10A0A1A2A3
VCC
DQ4
VSS
DQ3
XCAS
XOE
A9
A8A7A6A5A4
VSS
22
252627
2829
303132
161514
1312
1110
9
BITSELECT
SERIALPARALLEL
CONVERTER
TSBSIGNAL
ENCODERDECODER
24 23 22 21 20 19 18 17
1 2 3 4 5 6 7 8
PO26
PO27
NC NC VSS2
TSB
RW
SEL2
2
SEL2
0
VSS0
XLT2
SO2
SCK2
REQ
SEL2
1
XLT
SCKSO1SI
VDD0VSS1
RSTMCLK
BUSY
PO25PO24PO23
VSS3VDD1
PO22PO21PO20
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