NAD C 521BEE User manual

NAD
C 521BEE
COMPACT
DISC PLAYER
C 521BEE COMPACT DISC PLAYER
SERVICE MANUAL

- 2 -
CATUION
HGKJDHSGKJHGSJK
ADVARSEL
HGKJDHSGKJHGS
KBVNCLKNBCVLKNLKNVLKNCVNCLVK JK
ADVARSEL
HGKLFH;L;HJMNMD
HFKLJHJLDKLJLKDJLKFHJHSGMMKJHGSJK
VARING
HGKJDHSGKJHGKLGDJH
KLHKFG;LKNG;LKJGF;LKJGF;LKJFL;SJK
VARO!
HGKJDHSGKJHJBJKBKJBJKGS
KBVNCLKNBCVLKNLKNVLKNCVNCLVK JK
VORSICT!
HGKLFH;L;HHBHHJD
JHFKLJHJLDKLJLKDJLKFHJHSGKJHGSJK
SAFETY INFORMATION
CAUTION
CAUTION
- INVISIBLE LASER RADIATION WHEN OPEN AND
INTERLOCKS DEFEATED. AVOID EXPOSURE TO BEAM.
ADVARSEL
- USYNLIG LASERSTRÅLING NÅR DEKSEL ÅPNES OG
SIKKERHEDSLÅS BRYTES. UNNGÅ EKSPONERING FOR STRÅLEN.
ADVARSEL
- USYNLIG LASERSTRÅLING VED ÅBNING, NÅR
SIKKERHEDSAFBRYDERE ER UDE AF FUNKTION. UNDGÅ
UDSÆTTELSE FOR STRÅLING.
VARING
- OSYNLING LASERSTRÅLNING NÄR DENNA DEL ÄR
ÖPPNAD OCH SPÄRRAR ÄR URKOPPLADE. STRÅLEN ÄR FARLIG.
VARO!
- AVATTAESSA JA SUOJALUKITUS OHITETTAESSA OLET
ALTTIINA NÄKTMÄTÖNTÄ LASERSÄTEILYLLE. ÄLÄ KAISO
SÄTEESEEN.
VORSICT!
- UNSICHTBARE LASERSTRAHLUNG TRITT AUS, WENN
DECKEL GEÖFFNET UND WENN SICHERHEITSVERRIEGELUNG
ÜBERBRÜCKT IST. NICHT DEM STRAHL AUSSETZEN.
THIS DEVICE COMPLIES WITH PART 15 OF THE FCC RULES.
OPERATION IS SUBJECT TO THE FOLLOWING TWO CONDITIONS:-
(1) THIS DEVICE MAY NOT CAUSE HARMFUL INTERFERENCE, AND
(2) THIS DEVICE MUST ACCEPT ANY INTERFERENCE RECEIVED,
INCLUDING INTERFERENCE THAT MAY CAUSE UNDESIRED
OPERATION.
The lightning flash with arrowhead, within an equilateral tri-
angle is intended to alert the user of the presence of
uninsulated "dangerous voltage" within the product’s
enclosure; that may be of sufficient magnitude to consti-
tute a risk of electric shock to persons.
The exclamation point within an equilateral triangle is intend-
ed to alert the user of the presence of important operating
and maintenance (servicing) instructions in the literature
accompanying the appliance.
CLASS 1
LASER PRODUCT

- 3 -
SERVICE SAFETY PRECAUTIONS
1. Replacing the fuses
CAUTION: FOR CONTINUED PROTECTION AGAINST THE RISK OF FIRE REPLACE ONLY WITH SAME TYPE
OF FUSE.
Reference No Part Number Description
M502-M504 *AH 5120-0020-0 FU T1A 250V UL/CSA 5x20MM
M502-M504 *C 5120-0018-0 FU T1A 250V SEMKO/UDE 5x20MM
M505 *AH 5120-0052-0 FUSE T1.6A 250V 5x20MM UL/CSA
M505 *C 5120-0050-0 FUSE T1.6A 250V 5x20MM SEMKO/VDE
NOTE:
<*AH > : USA, CANADIAN MODEL ONLY.
<*C > : EUROPEAN MODEL ONLY.
2. Safety check out
(Only U.S.A. model)
Before returning the product to the customer, make leakage current or resistance measurements to determine that
exposed parts are acceptably insulated from the supply circuit.
Parts marked with the symbol are critical with regard to the risk of fire and electric shock.
Replace only with parts recommended by the manufacturer.
CONTENTS
DESCRIPTION PAGE
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
REAR PANEL / FRONT PANEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
DISASSEMBLY INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
RF PATTERN TESTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
IMPORTANT NOTES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-11
PCB LAYOUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12-13
SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14-17
IC BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18-21
TROUBLESHOOTING GUIDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
ELECTRICAL PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23-27
MECHANISM EXPLODED VIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
MECHANISM EXPLODED VIEW PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
EXPLODED VIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
EXPLODED VIEW PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31-33
PACKING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33

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SPECIFICATIONS
Disc Capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . One Disc, 120 or 80 mm
Decoding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . BURR-BROWN Delta Sigma 20bit
Digital Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Times oversample
Analog Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 pole active
Frequency Response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +/- 0.5 dB, 5Hz - 20kHz
De-Emphasis Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +/- 0.3 dB
THD (at 0 dB, 1kHz) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.003%
Intermodulation Distortion . . . . . . . . . . . . . . . . . . . . . . . . . . . < - 100 dB
(19 + 20 kHz)
Dynamic Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96 dB
Linearity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +/- 0.5 dB, 0 dB to -80 dB
Signal / Noise Ratio (A-Weight) . . . . . . . . . . . . . . . . . . . . . . . ≥106 dB, De-Emphasis on
≥106 dB, De-Emphasis off
Channel Separation 1kHz . . . . . . . . . . . . . . . . . . . . . . . . . . >90 dB
10 kHz . . . . . . . . . . . . . . . . . . . . . . . . >80 dB
Wow and Flutter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Unmeasurable (Quartz Crystal Accuracy)
Output Impedance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 Ω
Output Level at 0 dB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.1 V rms
Digital Error Correction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IRC with double error correction in C1 and C2
Digital Code Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Sony / Philips Serial data format
Power Consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12W
CONTROLS
Play / Pause, Stop, Random, Skip (< >), Scan (< >), Open, Time, Repeat.
PHYSICAL SPECIFICATIONS
Dimensions 435 x 80 x 285 mm
(Width x Height x Depth)
Net weight 4 kg (8.8 lbs)
Shipping weight 5.1 kg (11.22 lbs)

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1. LINE OUT
2. DIGITAL OUT
3. AC LINE CORD
1. POWER ON / OFF
2. DISC DRAWER
3. DISPLAY
4. OPEN
5. PLAY / PAUSE
6. TIME
7. STOP
8. REPEAT
9. RANDOM
10. SCAN Back ( ) / Forward ( )
11. SKIP Back ( ) / Forward ( )
12. STANDBY LED
REAR PANEL / FRONT PANEL
REAR PANEL
FRONT PANEL

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DISASSEMBLY INSTRUCTIONS
1. Remove machine screws M 4.0 x 6.0 ( 1 to 4 ) from the side panels.
Remove tapping screw 3.0 x 8.5 ( 5 )from the back panel.
Refer to Figure No.1.
Figure No.1
2. Pull both sides of the TOP COVER slightly outwards 6 and tilt approx. 35˚ and then remove
in the direction as indicated by the arrow 7 . Refer to Figure No.2.
Figure No.2.
5
4
3
1
2
7
6
6

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BLOCK DIAGRAM
U401 M38223E4HP4 SYSTEM CONTROL CPU & LCD DISPLAY DRIVER
Q401- Q405
MUTE CIRCUIT Q301-Q304
MUTE
M317 RCA JACK
U302 PMC1710
M318
RCA JACK
DIGITAL
OUTPUT
M501*
LCD DISPLAY
87 27
22
2
1 3 51 78
35
1 2
16 13
3
61 62 63
51 43 39 40
46 45
38
24 12
9
2 4
3 6
60
L
R
L
R
CD AUDIO
O/P
12
15 28 16 18
6
1
U301
CXD3017Q
DIGITAL
SIGNAL
PROCESSOR
26
1
27
2
12 16
13 17
U101 CXA2581
ANALOG SIGNAL
PROCESSOR/SERVO
RFAC
RFDC
FE
SE
Q104~Q107
MOTOR DRIVER
U201 BA6392 FOCUS & TRACKING MOTOR DRIVER
LOADING
MOTOR
LOADING MOTOR
LIMIT SWITCH
SPINDLE
MOTOR
SLED
MOTOR
PU-IN
LIMIT SWITCH
PICK
UP
DISC
M113
REMOTE
SENSOR
CD MECHANISM UNIT
POWER
TRANSFORMER
AC POWER I / P
KEYBOARD
M110 M109
REPEAT
M105 M108M107
RANDOM
M102
M106 M104 M103
TIME
M101
Q101
DAC
U306 U305
11
U501,U507
DIGITAL
POWER
U502-3,U506
ANALOGUE
POWER
+8V +5V +12V 5V
-12V
D514-D517
RECTIFIER
DIODES
D501-D504
RECTIFIER
DIODES
D506
RECTIFIER
DIODES
U504
POWER FOR
EL LIGHT
M502
EL LIGHT
Q307,
Q309
Q312,
Q313
RL101
RELAY
U403
74HC00
NAND GATE
M303
EMC FILTER
L301
DIGITAL COIL
M500
1

- 8 -
WIRING DIAGRAM
115V:J401,J404
230V:J403
L401
J403
J406
J407
J402
J404
J401
1723-006A-0000
8V 0V 0V 8V
15V
0V
15V
ISSUE B
M120C
M505B
M301
LIVE NEUTRAL
M500A
M102 (16PIN)
M105 (6PIN)
M505A
CD MECHANISM
TRANSFORMER BOARD
DISPLAY BOARD
LED BOARD
KEY BOARD
LIVE BOARD
M101 (5PIN)
TO CHASSIS
M805 BROWN
M803 BROWN

- 9 -
RF PATTERN TESTING
NAD - C 521BEE PCB TESTING POINTS DIAGRAM
TESTING PROCEDURE
(1) Load the test disc (Sony Test CD YEDS-7) and set the unit into PLAY mode.
(2) Connect the scope to R227 (Pin 15 of U101) and DGND (J144).
Scope setting: Coupling : AC.
Vertical sensitivity : 0.2 V/ div.
Horizontal time base : 0.5 µS/div.
(3) Observe the waveform is 2.0V p-p +/-5% and the eye pattern is at its best shape (see FIG. 1).
FIG. 1 (a) FIG. 1 (b) Poor eye pattern
FIG. 1 (C) Good eye pattern
3T 4T 5T — 11T

- 10 -
IMPORTANT NOTES
INSTRUCTION FOR HANDLING OPTICAL SYSTEM BLOCK PICK-UP
Electrostatic breakdown of the laser diode in the optical system block may occur due to a potential difference caused
by electrostatic charge accumulated on clothing, human body, etc. A ground must be provided as follows to prevent
any electrostatic charge during unpacking or repair work.
1. Ground for Human Body
Be sure to wear a ground band (1M ohm) that is properly to remove any static electricity that may be charged on the
body.
2. Ground for Work Bench
Be sure to place a conductive sheet (1M ohm) or copper plate with proper grounding on the work bench or other sur-
face on which the pick-up is to be placed.
3. Because the static electricity charge on the clothing does not discharge through the body grounding band, do not
let clothing to get in contact with the pick-up unit.
PRECAUTIONS FOR CHECKING BEAM EMISSION
The laser beam of this unit is focused on the reflecting surface of the objective lens in the optical system block.
Therefore, keep your eyes at least 12 inches (30 cm) away from the objective lens when the laser diode is ON.
(Operation Check Method for Laser Diode and Focus Search Function.)
When the POWER switch is turned ON after the chucking plate is removed, observe the objective lens and confirm
that the following operations are performed properly.
(The optical system should be at the lead-in area position when it is checked at this time.)
(1) The laser should be at the innermost position after the chucking plate is removed.
(2) The diffused light of the laser beam can be seen when the POWER switch is turned ON.
(3) Vertical (up and down) movement of the objective lens (2 or 3 times) will take place.
INCORRECT CORRECT
NOTE: Laser diodes are so susceptible to damage from
static electricity that even if a static discharge does not
ruin the diode, it can shorten its life or cause it to work
improperly.
1.Grounding band
1M ohm
1M ohm
2.Conductive Sheet
or Copper Plate

- 11 -
PRECAUTIONS WHEN CHANGING LASER PICK-UP
When removing the pick-up assembly, short circuit the PCB tracks on the optical block as show in the drawing in
order to protect the pick-up before removal.
NOTE: Replacement pick-up assemblies are supplied with the PCB pattern already protected.
DO NOT REMOVE THE SHORT CIRCUITS UNTIL YOU HAVE FINISHED FITTING THE PICK-UP.
Caution:
Laser diodes are extremely susceptible to damage from static electricity. Even if a static discharge does not ruin the
diode, it can shorten its life or cause it to work improperly. When replacing the pick-up, use a conductive mat, a
grounded soldering iron, and so on, to protect the laser diode from static damage.
Ground Conductive
Wrist Band for Body
Ground Line
Less than
10 ohm
Conductive Gum Mat
Soldering
Iron with
Ground
wire
Protective soldering place
for laser diode

- 12 -
PCB LAYOUT
DISPLAY BOARD
KEY BOARD
LIVE BOARD
LED BOARD

- 13 -
MAIN BOARD

- 14 -
SCHEMATIC DIAGRAM
DISPLAY
SL+ 1
SL- 2
RCIN1 3
SRDR 4
SFDR 5
VREFI 6
VREFO 7
GND 8
FRDR 9
FFDR 10
RCIN2 11
FCS+ 12
FCS- 13
GND1 14
MUTE
15 TRK+ 16 TRK- 17 RCIN3 18 TFDR 19 TRDR 20 VCC 21
VCC1
22 VBIN 23 SPDR 24 VBIN1 25 SP- 26 SP+ 27 GND2 28
GND 29
GND
30
U201
BA6392
SQSO 1 SQCK 2 XRST 3
SYSM 4 DATA 5
XLAT 6
CLOK 7
SENS 8
SCLK 9
VDD 10
ATSK 11
SPOA 12
SPOB 13
XLON 14
WFCK 15
XUGF 16
XPCK 17
GFS 18
C2PO 19 SCOR 20
COUT
21
MIRR
22
DFCT
23
FOK
24
LOCK
25
MDP
26
SSTP
27
SFDR
28
SRDR
29
TFDR
30
TRDR
31
FFDR
32
FRDR
33
VSS
34
TEST
35
TES1
36
XTST
37
VC
38
FE
39
SE
40
TE
41
CE
42
RFDC
43
ADIO
44
AVSS0
45
IGEN
46
AVDD0
47
ASYO
48
ASYI
49
BIAS
50
RFAC
51
AVSS3
52
CLTV
53
FILO
54
FILI
55
PCO
56
AVDD3
57
VSS
58
VDD
59
DOUT
60
LRCK
61
PCMID 62
BCK 63
EMPH 64
XVDD 65
XTAI 66
XTAO 67
XVSS 68
AVDD1 69
AOUT1 70
AIN1 71
LOUT1 72
AVSS1 73
AVSS2 74
LOUT2 75
AIN2 76
AOUT2 77
AVDD2 78
RMUT 79
LMUT 80
U301
CXD3017Q
R2014K7
R2021K
R2031K
R2041K
R2051K
R2061K
R2071K
R2081K
R2091K
R2101K
R2111K
R212 100K
R213 10K
R214 8K2
R215
4R7
R216 0R
R217
1K
R21815K
R21915K
R220100K
R222 0R
R22333K
R224
10K
R225100K
R226
1M
R227
100
R228
3K3
R229
3K3
R230
10K
C207 0.1u
C208
0.1u
C209
1500p
C210
0.1u
C211
27p
C212
27p
C214470p
C215470p
C2130.1u
XLAT
DATA
SYSM
XRST
SQCK
SQSO
/SQSO /SQCK /XRST /SYSM /DATA /XLAT /CLOK /SENS /SCLK /GFS /SCOR
/SQSO
/SQCK
/XRST
/SYSM
/DATA
/XLAT
/CLOK
/SENS
/SCLK
/GFS
/SCOR
V3V6
C201
220p
C202
220p
C203
0.01u
C204
220p
C205
220p
C206
330p
CLOK
SENS
SCLK
GFS
SCOR
CLOK
SENS
SCLK
GFS
SCOR
V3V6
VC
SFDR
SFDR
SRDR
SRDR
TFDR
TFDR
TRDR
TRDR
FFDR
FFDR
FRDR
FRDR
SPDR
SPDR
VC
VC
C229
470U/16V
TE
SE
FE
FE
SE
TE
C217
0.1u
C216
0.01u
C219
0.47u
V3V6
C218100p
V3V6
C221
103K
RFDC
RFAC
C220
0.47u
C223
1500p
V3V6
C222
0.1u
TP214
AGND
EMPH
BCK
PCMD
LRCK
XLAT
DATA
SYSM
XRST
SQCK
SQSO
RFDC
RFAC
1
2
3
4
5
6
M105
CON6
FCS-
FCS+
TRK-
TRK+
C226
0.33u/50V D201
1N4001
L201
27uH
VCC
C230
100uF/16V
FCS-
FCS+
TRK-
TRK+
EMPH
BCK
PCMD
LRCK
C227
0.1u
C228
0.1u
CN202
DEBUG
CLKO
DIG-OUT
XRST
D+8V
NOTE: 1. RESISTORS, ARE CARBON FILM 5% 1/8W UNLESS
OTHERWISE SPECIFIED.
2. CERAMIC CAPACITORS, ARE 50V 10%. UNLESS
OTHERWISE SPECIFIED.

- 15 -
MCU
P67/AN7 1 P66/AN6 2 P65/AN5 3 P64/AN4 4 P63/AN3 5 P62/AN2 6 P61/AN1 7 P60/AN0 8
P57/ADT 9
P56/TOUT 10
P55/CNTR1 11 P54/CNTR0 12
P53/RTP1 13 P52/RTP0 14
P51/INT3 15 P50/INT2 16
P47/SRDDY 17
P46/SCLK 18
P45/TXD 19
P44/RXD
20
P43/I1
21
P42/INT0
22
P41 23
P40 24
/RESET 25
P71/XCIN 26
P70/XOUT 27
XIN 28
XOUT 29
VSS 30
P27 31
P26 32
P25 33
P24 34
P23 35
P22 36
P21 37
P20 38
P17/S31 39
P16/30
40
P15/29
41 P14/S28 42 P13/S27 43 P12/S26 44 P11/S25 45 P10/S24 46 P07/S23 47 P06/S22 48 P05/S21 49 P04/S20 50 P03/S19 51 P02/S18 52 P01/S17 53 P00/S16 54 P37/S15 55 P36/S14 56 P35/S13 57 P34/S12 58 S11 59 S10 60
S9
61 S8
62 S7
63 S6
64 S5
65 S4
66 S3
67 S2
68 S1
69 S0
70 VCC
71 VREF
72 AVSS
73 COM3
74 COM2
75 COM1
76 COM0
77 VL3
78 VL2
79 VL1
80
U401
M38223E
COM0
COM1
COM2
COM3
SEG0
SEG1
SEG2
SEG3
SEG4
SEG5
SEG6
SEG7
SEG8
SEG9
SEG10
SEG11
SEG12
SEG13
SEG14
SEG15
SEG16
SEG17
SEG18
SEG19
M505AB
LCD
L302
10uH
VCC
R314
22K
R313
22K
R312
22K
R311
1K
VCC
R308
3K
R309
3K
X301A
8.00M
UNLD
LOAD
XRST
XLAT
CLOK
DATA
SCOR
SYSM
RW/ROM/LDOFF
RW/ROM/LDOFF
SCLK
SQCK
1/2X
DISCO
DI/SW
R327 4K7
R326 4K7
R325 4K7
R323 4K7
R322 4K7
R321 4K7
SQSO
SENS
C301
33p
C302
33p
C303
0.01u
1
2
3
Q308
8050
R329 4K7
R328 4K7
D303
IN4148
R338
10K
R339
100K C308
10u/6.3V
VCC
C307
47uF/10V
VCC
DAT
GND
2VCC
3
M113
IR
R340
10R C309
47uF/10V
VCC
1 2 3 4
KEY302
OPEN/CLOSE
12 34
KEY307
PREV
12 34
KEY305
NEXT
12 34
KEY309
F.SCAN
1 2 3 4
KEY308
REPEAT
1 2 3 4
KEY306
TIME
1 2 3 4
KEY304
RANDOM
12 34
KEY303
STOP
12 34
KEY301
PLAY
R303 6K2
R302 6K2
R305 2K
R304 2K
R307 1K
R306 1K
VCC
GFS
SYSM
SENS
SCOR
DATA
CLOK
XLAT
GFS
XRST
LOAD
UNLD
SCLK
SQCK
1/2X
DISCO
DI/SW
R3361K
R3351K
R334
560R
VCC
1
2
3
M301B
LED1
GREEN
Trig IN
Trig SW
STANDBY LED
Relay
D+5V
R310
3K
12 34
KEY310
B.SCAN
R301 1K SCLK
SQCK
1/2X
CD/CDR
1
2
3
M301A
LED1
RED
GREEN
RED
GND
R341
560R
VCC
R330
10K
R331
1K
1
2
3
Q309
8050
STANDBY CNL
RL101
D306
IN4148
1
2
3
Q307
8050
D403
3V3
D409
1N4148
R403
10K
R412 4K7
R413
47K
1
2
3
Q402
2SD1012F
1
2
3
Q403
2SA1015
1
2
3
Q401
2SA1015
R415
7K5
R405
22K
R406
7K5
A+12V
R416
47K
MUTE
C407
2200u/16V
D411
1N4148
C408
22u/16V
A+12V
D302
5393
C305
220uF/16V
C304
0.1u 4.2V
D+5V
D+10V
C310
1000uF/10V
NOTE: 1. RESISTORS, ARE CARBON FILM 5% 1/8W UNLESS
OTHERWISE SPECIFIED.
2. CERAMIC CAPACITORS, ARE 50V 10%. UNLESS
OTHERWISE SPECIFIED.

- 16 -
VC 1
VCC 2
E3 D4 A5 B6 C7 F8
GND 9
LD 10 VR 11
PD 12
FCS+ 13
TRK+ 14
TRK- 15 FCS- 16
M102 16PIN LD
1
PD
2
EQ_IN
3
AC_SUM
4
GND
5
A
6
B
7
C
8
D
9
E
10
F
11
SW
12
DVCC
13
DVC
14
RFAC
15 FE 16
FEI 17 TE 18
TE_BAL 19
CE 20
CEI 21
VCC 22 RFG 23
BST 24 VFC 25 RFC 26
VC 27
RFDCO 28
RFDCI 29
DC_OFST 30
U101 CXA2581
1
2
3
Q101
8550
R101
10
R102 0
R103 20K R104 20K
R105 3K
R106
150K
R107
100K
R108 68K
R109 15K
R110 3K
R111 4K7
R112 5K1
R1135K1
R114 5K1
R115 1K8 R116 12K
R117 12K
R118 10K R119 15K
C101 0.1u
C102 0.1u
C103 0.1u
C105
100u/16V
C106
100u/16V
C107
100u/16V
C108 100u/16V C109
100u/16V
VDD1
VC
VDD1
C110 100u/10V
VDD1
FE TE SE SE
TE FE RFAC
RW/ROM/LDOFF
RFDC
FCS- TRK-
TRK+
FCS+
FCS- FCS+ TRK+ TRK-
V3V6
RFDC RFAC
RW/ROM/LDOFF
1
2
3
Q103 8050
1/2X
1/2X
1 2 3 4 5
M101 5PIN
1
2
3
Q104 8550
1
2
3
Q105 8550
1
2
3
Q106
8050
1
2
3
Q107
8050
R121
1K
R122 1K
R123 1K
R124
1K
VCC
LOAD
UNLD
TRAY- TRAY+
DI/SW
DISCO
DISCO
DI/SW
LOAD
UNLD
DI/SW
DISCO
L102
10uH
L101
10uH
R315
4R7
C111
2.2uF/6.3V
J127
RF AMP
LRSY
ROMXA
CK2
CLKO
A
16.9344MHz
C328 20p
C329 20p
DGND
DGND
C320 10u/6.3V
AGND
C332
10u/6.3V
C376
22u/25V
C378
224K
R356 6K8
R360 6K8
C353 330p
R364
1K5
R368 2K2
R372 2K2
C357 2700p(M)
C363 4700p(M)
C367 680p(P)
C369
22u/25V
C382 224K(M) R376
150R
R374
100K
R380 150R 1
2
M317A
L
Q302 2SD655F
Q304 2SD655F
C321
10u/6.3V
R320 470R
EMPH
C323
10u/6.3V
C322
104K
A+5V
D+5V
2 3
1
U306A 5532
6 5
7
U306B 5532
8 4
U305C
5532
DGND
R378 4K7
R382 4K7
R414 100K A-12V
C375
22u/25V
C377 224K
R355
6K8
R359 6K8
C352 330p
R363
1K5
R367 2K2
R371 2K2
C356 2700p
C362 4700p
C366 680p
C368
22u/25V
C379 224K(M) R375
150R
R373
100K
R379 150R 3
2
M317B
R
Q301
2SD655F
Q303
2SD655F
2 3
1
U305A 5532
6 5
7
U305B OPA2604
8 4
U306C
5532
R377 4K7
R381 4K7
MUTE
C536 103K
CHASIS 1
2
M318 DIGITAL OUT
R384 75R
C387
103K
1 2
3
4
L301
CHASIS
R383
150R
C385 2200p
Vin
GND
Vout
1
2
3
M303 DST310
C386 104K
J528
C383 22u/10V
C384
1000p
1 2
3
U403A
74HC00
4 5
6
U403B
74HC00
DIG_OUT
DGND
12 13
11
U403D
74HC00
9 10
8
U403C
74HC00
14
7U403E
74HC00
C380 104K C381
104K
C371
470u/16V
C372 470u/16V
R391
220R 1/2W
R390
220R 1/2W
C374
470u/16V
C373
470u/16V
R393
220R 1/2W
R392 220R 1/2W
A+12V
A-12V
C417
104K
C418
10u/25V
D+5V
C370 103K
C333 104K
AGND
A+5V
A+5V
C325 10u/6.3V
C326 104K
D+5V
DGND
DGND
LRCIN
DIN
BCKIN
CLKO
XTI
XTO
DGND
VDD
VCC2R
AGND2R
EXT1R EXT2R
VOUTR
AGND1VCC1
VOUTL EXT2L EXT1L AGND2L VCC2L VDD DGND CKSL MODE MUTE MD/DM1 MC/DM2 ML/DSD 1
2 3 4 5 6 7 8 9
10
11
12 13 1415
16 17 18 19 20 21 22 23 24 25 26 27 28
U302 PCM1710U
R385
10R
AGND
AGND AGND
AGND
C324 10u/6.3V
C327
104K
A+12V
A-12V
AGNDAGND
M302
1
2
3
Q305 DTC114
R394 10K
XRST
R358
1K2
R353 1K2
R357 270R
R354 270R
R362
68K
R361 68K
AGND
D
DAC
NOTE: 1. RESISTORS, ARE CARBON FILM 5% 1/8W UNLESS
OTHERWISE SPECIFIED.
2. CERAMIC CAPACITORS, ARE 50V 10%. UNLESS
OTHERWISE SPECIFIED.
NOTE: 1. RESISTORS, ARE CARBON FILM 5% 1/8W UNLESS
OTHERWISE SPECIFIED.
2. CERAMIC CAPACITORS, ARE 50V 10%. UNLESS
OTHERWISE SPECIFIED.

- 17 -
10
1 2 3
4 5 6 7 8 9
M500
1
2
3 4
M810 TLN120A150W3R0
AC1 AC CORDEST
FERRITE RING * ONLY IN C VERSION
M802
POWER_SW
C800 4700p
J800 230V
J801 120V
D514 IN4001
D516 IN4001
C543
104K
C541 104K
C501
104K
D515
1N4001
D517
1N4001
C542 104K C540
104K
Vin
GND
Vout
1
2
3
U507 7808
DGND
C529
4700u/16V
C528 104K
DGND
C532 104K
C508
1000u/10V
C533
470u/10V
Vin
GND
Vout
1
2
3
U501 7805 C511
220u/10V
C710
100u/6.3V
D+5V
D+8V
M512 T1A 250V
M502 T1.6A 250V
Vin
GND
Vout
1
2
3
U504 7809
C518
100u/25V
C521 104K
EL_GND
D506 1N4001
R709 470R
Q520 8050
R520 51K
C523 2u2/16V
C524 0.022u
R521
150R
C522 100u/16V
ELD1
C502 104K C503 104K
D501 1N4001
D502 1N4001
C506 2200u/25V
Vin
GND
Vout
1
2
3
U502 7812
C504 104K
D504 1N4001
D503 1N4001
C505 104K
C507 2200u/25V
C526 104K
C512
1000u/16V
C513 1000u/16V
C525 1000u/10V
C535 104K
C534 104K
D505 3V3 1.3W
Vin
GND
Vout
1
2
3
U503 7912
M503 T1A 250V
AGND
M504
T1A 250V
AGND
A+12V
A-12V
Vin
GND
Vout
1
2
3
U506 7805 C527
470u/10V
A+5V
AGND
AGND
6 9
4
2
M501
D+10V
DGND
RL101A Relay
24
Q312
8550
+9V-IN
R346
10K
R347 1K
+9V-OUT
Q313
8550
R502 18K
+9V-OUT
+9V-IN
C537 104K
R501 27K
C531 104K
C530
10u/25V
D507 IN4001
D508
1N4001
A1 A2
13
A2
A1
D513 1N5393
POWER
NOTE: 1. RESISTORS, ARE CARBON FILM 5% 1/8W UNLESS
OTHERWISE SPECIFIED.
2. CERAMIC CAPACITORS, ARE 50V 10%. UNLESS
OTHERWISE SPECIFIED.
3. COMPONENTS MARKED “ ” ARE SAFETY CRITI-
CAL PARTS.

AC SUM
AC VCA
EQ_ON/OFF
VC
DVcc
RW/ROM
RW/ROM
RW/ROM
RW/ROM
RW/ROM
RW/ROM
RW/ROM
VC VC
VC
DVC
DVC
VOFST
VOFST
B C A D
VOFST
EQ
APC
23
RFG
24
BST
26
RFC
25
VFC
14
DVC
27
VC
5
GND
22
Vcc
1
LD
2
PD
12
SW
11
E
10
F
9
D
8
C
7
B
6
A
15 RFAC 30 DC_OFST 29 RFDCI 28 RFDCO 17 FEI 16 FE 19 TE_BAL 18 TE 21 CEI 20 CE 13 DVcc
3
EQ_IN
4
AC_SUM
-
+-
+
VC
VC
DVC
DVcc
-
+
-
+
-
+
-
+
DVcc
-
+
-
+
DVcc
-
+
gm gm
VC
VC
VOFST
DVC
DVC
-
+
+
VC
Vcc
APC-OFF (Hi-Z) RW/ROM (H/L)
Vcc +
- 18 -
IC BLOCK DIAGRAM
MAIN BOARD
U101: CXA2581N
1CH1OUTF 28 GND
2F
INTER
FACE
REV
FWD
R
CH1OUTR 27 CH4OUTF
3RCIN1 26 CH4OUTR
4CH1RIN 25 VBIN
190K
100K
25K
25K
DRIVE
MUTE
5CH1FIN 24 VSIN
6VREFIN 23 VBIN
7VREFOUT 22 VCC
8GND 21 VCC
9CH2FIN 20 CH3FIN
10CH2RIN 19 CH3RIN
11RCIN2 18 RCIN3
12CH2OUTR 17 CH3OUTR
13CH2OUTF 16 CH3OUTF
14GND 15 MUTE
+
-
+
-
THERMAL
SHUTDOWN
CIRCUIT
F
INTER
FACE
REV
FWD
R
F
INTER
FACE
REV
FWD
R
LEVEL
SHIFT
MAIN BOARD
U201: BA6392FP

- 19 -
MAIN BOARD
U301: CXD3017Q
Clock
Generator
EFM
demodurator
Error
Corrector
16K
RAM
Digital
OUT
D/A
Interface
Serial-In
Interface
Over sampling
Digital Filter
PWM PWM
Timing
Logic
3rd-Order
Noise Shaper
Sub Code
Processor
Servo
Auto
Sequencer
SERVO
Interface
Servo Block
DAC Block
Signal Processor Block
MIRR
DFCT
FOK
FOCUS SERVO
TRACKING
SERVO
SLED SERVO
SERVO DSP
FOCUS PWM
GENERATOR
TRACKING PWM
GENERATOR
SLED PWM
GENERATOR
PWM GENERATOR
OPAmp
Analog SW
A/D
Converter
Asymmtery
Corrector
Digital
PLL
Digital
CLV
CPU
Interface
XTSL XUGF GFS EMPH WFCK C2PO LRCK PCMD BCK SYSM
TES1
TEST
XRST
RMUT
LMUT
XTAI
XTAO
AOUT1
AIN1
LOUT1
AOUT2
AIN2
LOUT2
SCLK
COUT
SSTP
ATSK
MIRR
DFCT
FOK
FFDR
FRDR
TFDR
TRDR
SFDR
SRDR
ADIO
IGEN
VC
FE
SE
TE
CE
RFDC
SQCK
SQSO
SCOR
XLON
SPOB
SPOA
CLOK
XLAT
DATA
SENS
LOCK
MDP
CLTV
PCO
FILI
FILO
XPCK
BIAS
ASYO
ASYI
RFAC
DOUT
+
-
+
-
+
-
+
-
51
49
48
50
17
54
55
56
53
26
25
8
5
6
7
12
13
14
20
1
2
43
42
41
40
39
38
46
29
28
31
30
33
32
24
23
22
11
27
21
9
60
75
76
77
72
71
70
67
66
80
79
3
35
36
4
63 62 61 19 15 64 18 16 37
44

- 20 -
Input
Interface
Timing
Control
Digital
Filter
Mode
Control
Noise
Shaper
5-Level DAC
Left
Low Pass Filter
Left
CMOS Amp
Left
5-Level DAC
Right
Low Pass Filter
Right
CMOS Amp
Right
1
2
3
4
6
8
10
12
5
7
9
11
13
14
LRCIN
DIN
BCKIN
CLKO
XTI
XTO
DGND
VDD
VCC2R
AGND2R
EXT1R
EXT2R
VOUTR
AGND1
28
27
26
25
23
21
19
17
24
22
20
18
16
15
ML/DSD
MC/DM2
MC/DM1
MUTE
MODE
CKSL
DGND
VDD
VCC2L
AGND2L
EXT1L
EXT2L
VOUTL
VCC1
MAIN BOARD
U302: PCM1710U
28
Clock
input
XIN
XCIN
Sub-
clock
input
XCOUT
Sub-
clock
output
ø
29
Clock
input
XOUT
Clock generating
circuit
Data bus
CPU
ROM RAM
LCD display
RAM
(16 bytes) LCD
drive control
circuit
A
25
Reset input
RESET
71
(5V)
Vcc
(0V)
Vss
30
78 VL3
77 COM0
76 COM1
75 COM2
74 COM3
70 SEG0
69 SEG1
68 SEG2
67 SEG3
66 SEG4
65 SEG5
64 SEG6
63 SEG7
62 SEG8
61 SEG9
60 SEG10
59 SEG11
79 VL2
80 VL1
5453525150494847
I/O port P0
P0(8)
4645444342414039
I/O port P1
P1(8)
3837363534333231
I/O port P2Input port P3
P2(8)
Key-on wake up
Real time port function
ø
INT0, INT1
INT2, INT3
ADT
RTP 0 , RTP 1
CNTR 0 , CNTR 1
TOUT
XCOUT
XCIN
58575655
P3(4)
SI/O(8)
2423222120191817
I/O port P4
P4(8)
161514131211109
I/O port P5
P5(8)
A-D converter(8)
87654321
I/O port P6I/O port P7 VREF
AVSS
(0V)
P6(8)
2726
P7(2)
7372
Time X(16)
Time Y(16)
Time 1(8) Time 2(8)
Time 3(8)
X
Y
S
PCLPCH
PS
MAIN BOARD
U401: M38223E4HP4