NAD C545BEE User manual
NAD
C 545BEE
COMPACT
DISC PLAYER
C 545BEE
COMPACT
DISC PLAYER
SERVICE MANUAL
- 2 -
SAFETY INFORMATION
CAUTION
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
FC201 *C 5120-0050+0 FUSE T1.6A/250V 5X20
FC201 *AH 5120-0052+0 FUSE T1.6A 250V 5X20
FC202, FC204, FC205 *C 5120-0018+0 FUSE T1A 250V 5X20
FC202, FC204, FC205 *AH 5120-0020+0 FU T1A 250V UL/CSA 5X20
FC203 *C 5120-0035+0 FU T100MA 250V
FC203 *AH 5120-0036+0 FUSE 250V 100MA T 5X20
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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-12
PCB LAYOUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13-16
SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17-23
IC BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24-31
TROUBLESHOOTING GUIDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
ELECTRICAL PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33-44
MECHANISM EXPLODED VIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
MECHANISM EXPLODED VIEW PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
EXPLODED VIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
EXPLODED VIEW PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
PACKING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
- 4 -
SPECIFICATIONS
GENERAL PARAMETERS
Output level - Analog 2.2 ± 0.1 V
Optical -22.5 ± 3.5 dBm
Coaxial 650 ± 150 mV
Frequency response ± 0.3 dB (ref. 0 dB 20 Hz-1 kHz)
± 0.5 dB (ref. 0 dB 5 kHz-20 kHz)
Total harmonic distortion < 0.01% (ref. 1 kHz)
Signal/Noise ratio 118 dB (A-weighted, ref. 1 kHz)
Channel balance ± 0.5 dB (ref. 0dB 1kHz)
Dynamic range 95 dB
Channel separation > 90 dB
De-emphasis -3.73 to -5.33 dB (ref. 0dB 5 kHz)
-8.04 to -10.04 dB (ref. 0 dB 16 kHz)
Linearity ± 0.01 dB (ref. 1 kHz at -3 dB)
± 0.02 dB (ref. 1 kHz at -6 dB)
± 0.02 dB (ref. 1 kHz at -10 dB)
± 0.05 dB (ref. 1 kHz at -20 dB)
± 0.15 dB (ref. 1 kHz at -60 dB)
DIMENSION AND WEIGHT
Unit Dimensions (W x H x D) 435 x 285 x 70 mm (Net)
435 x 293 x 86 mm (Gross)*
Net weight 4.9 kg
Shipping weight 6.3 kg
* - Gross dimensions include feet, extended buttons and rear panel terminals.
- 5 -
1. UPGRADE PORT
2. LINE OUT
3. DIGITAL OUT (COAXIAL, OPTICAL)
4. +12V TRIGGER INPUT
5. IR INPUT
6. AC MAINS INPUT
1. STANDBY
2. STANDBY LED
3. DISC TRAY
4. OPEN/CLOSE
5. PLAY/PAUSE
6. STOP
7. RANDOM
8. REPEAT
9. DISPLAY
10. SKIP/SCAN
11. VFD
12. REMOTE SENSOR
REAR PANEL / FRONT PANEL
REAR PANEL
FRONT PANEL
12 3 45
6
12 3 4 5 6 7 8 9 10
12 11
- 6 -
7
6
6
5
4
3
1
2
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.
- 7 -
BLOCK DIAGRAM
6&$ +EY
+EYBOARD
-#5
)#
4-0&3
6&$+EY$!#
5
%LECTROMOTORDRIVE
!NDLOADERCONTROL
5
$!#7-
4!
)2IN
4RIGGERIN
#OAXIALOUT
/PTICALOUT
2#!2,OUT
5
(#5
30$)&
)2
5
(#
4RANSFORMER !#IN
%-)INDUCTOR
6 6 6 $6 6 6
4#!
)#
3ERVO
,OADER
--
-OTORDRIVE
5
)#
"OLERO
4-0#$
-AINBOARD 3ERVOBOARD
- 8 -
WIRING DIAGRAM
CD MECHANISM
SWITCH Board
KEY Board
SERVO Board
MAIN Board
TRANSFORMER
AC IN
7013-0550+0
part of the fascia assembly
7013-0510+0
7013-0530+0
part of the fascia assembly
NSP
NSP
7013-0540+0
7012-9020+0
7013-0520+0
7013-0570+0
7013-0560+0 7013-1280+0
7012-9301+0 CORD-AC GS 250V 2.5A - C VERSION
7012-9331+0 CORD-AC UL 125V 7A - AH VERSION
- 9 -
RF PATTERN TESTING
NAD - C 545BEE 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 C7 (Pin 81 of IC1) and DGND (C32).
Scope setting: Coupling : AC.
Vertical sensitivity : 0.2 V/ div.
Horizontal time base : 0.5 μS/div.
(3) Observe the waveform is 1.5V 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
Test Point
- 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 -
MULTI-KEY TABLE FOR C545BEE (orignal production)
Item Content Multi-key
1
2
3
VFD full segment display STOP + SCAN BACK
Playtime total RANDOM + SCAN FORWARD
Eject times count RANDOM + SCAN BACK
NOTES
New special key functions (MCU v0.4.0. & Servo v4.4.)
-Playtime counter : Random + Scan Forward for 5 sec
-Open tray (Eject times) counter : Random + Scan Back for 5 sec
-Counter reset : Random + Display for 5 sec, then press password 5-4-5-5-6-5 via remote
-Auto-standby on/off : Random + Play for 5 sec.
-VFD full segment display : Press Stop + Scan Back for 5 sec.
- 13 -
PCB LAYOUT
KEY BOARD
bottom side
top side
SWITCH BOARD
top side bottom side top side bottom side
PCB-C54516+SW1
1725-971A+000A
Issue A
Section D
2009-04-08
AMBER
GND
BLUE
CN102A1
S1
D4
DGND
+5V
LED
POWER
Q5
R21
R22
R23
bottom side
top side
AC1
AC2
-28V
D+5V
KGND
KEY1
KEY0
V_R2
V_R1
VFD_CLK
VFD_DATA
VFD_CE
VFD_INH
CPU_5V
DGND
LED
REMOTE
DGND
PCB-C54516+KEY
1725-971A+000A
Issue A
Section B
2009-04-08
P220
VFD101
CN102B
CON101
R105
R104
R115
R109
R111
C104
REMO101
S101
S105
S102 S103
S104
S107 S108
S109
C102
Z101
JMP39
JMP134
JMP65
JMP117
JMP103
JMP96
JMP116
JMP105
JMP108
JMP111
JMP110
JMP109
JMP97
JMP107
JMP112
JMP118
JMP104
JMP95
JMP101
JMP89
JMP23
JMP44
POWER
LED
+5V
DGND
AC1
AC2
-28V
D+5V
GND
KEY1
KEY0
VFD_CLK
VFD_DATA
VFD_CE
VFD_INH
CPU_5V
LED
REMOTE
DGND
C103
R106
R103
C107
C105
C106
L101
R110
R107
R108 R112
R113
C101
D103
R8
C1
R9
R10
C2
R11
R12
R13
R14
C3
C4 C5
Q3 Q4
R18
R19R20
Q102
- 14a-
MAIN BOARD - top side
- 14b-
MAIN BOARD - top side
1 32
Reset
RXD
TXD
GND
CPU_5V
L
R
120V
230V
CD8V
GND
1.5V
CL_SW
JGND
OP_SW
LM_CL
LM_OP
SPDIF
DATA
BCLK
LRCLK
MCLK
GND
HOLD
STATUS1
ACK
STB
DATA
SERVO_RST
3.3V
AC1
AC2
-28V
D+5V
KGND
KEY1
KEY0
V_R2
V_R1
VFD_CLK
VFD_DATA
VFD_CE
VFD_INH
CPU_5V
DGND
LED
REMOTE
2
17
18
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.15.
16.
17.
18.DGND
1
PCB-C54516+MAIN
1725-971A+000A
Issue A
Section A
2009-04-08
230V
120V
120V
RESET
DETECT
T1.6AL250V
T1AL250V
T1AL250V
100mAL250V
T1AL250V
P217
P218 P219
JGND
JGND
JGND
JGND
JGND
J222
Remote to MCU
Remote from Keyboard
DGND
DETECT
CPU_5V
TXD
RXD
DGND
CPU_5V
X201
C216
C219
Q216
C220
C223
C203
C312
C314
C316
C310
C264
C265
C266
C267
C268
Q205
Q202
C269
C270
C271
Q203
C273
L201
Q204
C226
C230
C233
C237
C238
C240
C261
Q210
Q211
Q212
Q213
C245
C247 C249
C251
C253
D210
C254
Q206 C255
Q207
C257
D213D214
C258
C259
C263
C208
C214
Q201
D202
L202
D204
D205
D208
D217
C235
C272
T201
H207
H202
H203
H204
H205
H206
H201
C277
C285
D218
C323
C324
P202
P203
R289
R241
R335
R334
R243
R302
R306
Q208
Q209
J219
P204
P205
L2
C15
R290
D209
CN103
R24
X202
L203
J220
J221
D203
U203
D206
J217
J218
D211R262
RL202
RL201
J209
J210
FC201
FC202
FC203
FC204
FC205
U210
U211
AC201
U202
IC202
IC203
U205
U206
U207
J214
J211
C210
C211
CON201
J201
J202
J203
J204
J207
RCA201
U208
U204
J212
R243
D201
D2 D1
C243
J213
RCA202
J215
C201
C10
L1
C11
U2
C12
C13
C14
J205
JMP120
JMP114
JMP87
JMP46
JMP8
JMP121
JMP83
JMP88
JMP92
JMP129
JMP82
JMP47
JMP84
JMP90
JMP40
JMP22
JMP24
JMP43
JMP76
JMP72JMP51
JMP2
JMP13
JMP79
JMP26
JMP27
JMP30
JMP25
JMP64
JMP28
JMP32
D239
R140
JMP38
JMP33
JMP48
JMP49
JMP54
JMP52
JMP50
JMP57
JMP59
JMP56JMP55
JMP62
JMP99
JMP78
JMP29
JMP
60
JMP71
JMP100
JMP73
D238
JMP18
JMP94
JMP63
JMP61
JMP19
JMP91
JMP53
JMP58
JMP69
JMP77
J216
JMP11
JMP10
JMP131
JMP133 JMP139
JMP75
JMP132
JMP21
JMP45
JMP124 JMP115
JMP86
JMP80
JMP4
JMP6
JMP14
JMP15
JMP16
JMP17
JMP7
JMP68
JMP67
JMP119
JMP41
JMP42
JMP1
JMP5
JMP3
JMP128
JMP122
JMP98 JMP125
JMP102
JMP126
JMP113
JMP36
JMP34
JMP31
JMP123
JMP127
JMP135
JMP136
JMP85
JMP81
JMP70
JMP37
JMP66
JMP74
JMP12
JMP137
JMP138
JMP35
SW201
- 15a-
MAIN BOARD - bottom side
- 15b-
MAIN BOARD - bottom side
1
16
17
32
33 4 8
49 64
8V
JGND
JGND
JGND
JGND
JGND
R26
IC206
C317 C318
R300
C308
Q215
R201
C320
C319
R281
R282
R299
R295
R298
R297
R296
R279
R280
C315
C274
IC209
R202
R244
R245
R246
R257
C224
C225
C227
C228
R344
R248
R249 R250
R251
R252
R253
R254
R255
R256
R247
R258
R259
C278
R260
C301
R261
C283
C284
C286
C287
C290
C288
C291
C292
C293
C294
C295
C296
C297C298
C299
C279
C302
R315
R318
R319
R321
R322
R323
R324
R325
C303
C304
C305
C306
C307
R328
R329
R330
R331
R336
R337
R338
R339
R340
R341
R342R343
R345
R346
R347
R350
R351
R352
R353
R264
R317
R316
R273
R275
R276
R277
R278
R203
R314
R212
R213
R214
R215
R216
R217
R218
R219
C212
C213
R220
C215
R221
C204
C217
C218
C221
C222
C309
C311
C313
C209
IC208
R326
R349
R332
R333
R348
R327
R288
R266 R265
R272
R354
R355
R286
R291
R292
R293R294
R285 R284
R283
R204
C289
R320
R4
C322
R1
R205
R206
R207
R209
R303
R304
R305
R307
R308
R310
R311
R356
R2
R267
R3
R210
R208
R7
R5R6
C321
C6
C7
C8
C9
R222
R25
C280
R271
R270
C275 C276
R268
R139
R138
IC207
L204
L205
R274
U209
IC204
P216
-28V
1V5
3V3
8V
AC1
AC2
ACK
BCLK
CL-SW
CPU-5V
D+5V
DATA
DGND
GND
HOLD
JGND
KEY1
KEY2
KGND
LCD-CE
LCD-CLK
LCD-DATA
LCD-INH
LED
LM-CL
LM-OP
LRCLK
MCLK
OP-SW
REMOTE
SERVO-RST
SPDIF
STATUS1
STB
USB-DATA
U201
C250
C242
C232
C229
C260
C252
C231
C236
C234
C239
C262
C241
C256
C248
C244
C246
R263
Q1
Q2
U1
D3
D212
R357
R15
R16
R17
C205
U3
Q6
C281
D207
- 16a-
SERVO BOARD
bottom side
top side
- 16b-
SERVO BOARD
bottom side
top side
Q1
C1
C10
C12
C13
C14
C15
C17
C18
C19
C2
C20
C21C22
C23
C24
C25
C26
C27
C28
C29
C3
C35C36
C37C38
C4
C40
C42
C43
C44
C45
C46
C5
C50
C51
C52
C53
C54
C62
C63
C8
C9
R1
R10R11
R15
R18
R19
R29
R30
R31R32
R5
IC3
R6
X2
X3 X4
X1
C78
C80
C65
C67
C68
C69C70
C94
C96
C73
C74
C76
C77
C89
C66
C71
C95
IC11
R8
R12R13
R16
R55
R39
R22
R200
R33
R34
R57
R21
R42
R26
R25
R56
R40
R48
R14
IC10
IC9
X6
C85
C90
C93
R36
R58
IC8
X5
X7
D20Q15
Q16
Q4
R17
R185
R198
R199
R20
R202
R38
R41
R49
R61
R63
X8
R43
R44
R79
R45
R47
R50
R51
R52
R53
R54
SW1
R59
R67
R100
Q5 Q6
C6
C83C84
C87C88
R35
R7
R101
R102
R103
R46
R66
R69
R78
R81R82
R83
R84
R85
R86
R87R88
R90R91
R92
R93
R94
R95
R96
R97
R98
R99
U2
J4
J5
JP7
J7
J9 J10
J11
J12MA ERK2
C32
C55
C39
C56
C57
C34
C33
C58
Q2
Q3
JP1
JP15
JP2
JP3
JP4
JP5JP6
C30
C91
C61
C31
R3
R4
R2
R9
C47C11
R89
J6
C41
C75
R37
C16
J1
R80
IC5
J3
IC1
D1
IC77
D2
R24
R27
JP40
R28
R60
R62
L1
Q7
C49
C59
C60
C7
R65
R68
R70
R71R72
R73
R74
R75
R76
C64
C72
C79
C81
C82
R64
R77
J104
J2
C86
C48
D3
JP8
C100
C101
R104
R23
J8
R119
R118
- 17 -
SCHEMATIC DIAGRAM
KEY
NOTE: 1. RESISTORS, ARE CARBON FILM 5% 1/8W UNLESS
OTHERWISE SPECIFIED.
2. CERAMIC CAPACITORS, ARE 50V 10%. UNLESS
OTHERWISE SPECIFIED.
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5
6
6NLSXS
5
.
6
5HSHDW
5
5
6
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5
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6
6NLSGRZQ
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.
6
6WRS
5
5
6
5DQGRP
5
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4
4
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470
1
2
3
4
CN102A1
D102 ORANGE
D101 BLUE
Q101
3904
R101
4.7K
R102
1.2K or 1.0K
R116
470R
Q5
3904
R21
100R
R22
220
R23
4.7K
1
2
3
4
CN102A
1
AC7
1
AC18
1
AC19
1
AC20
1 2
34
S106
Power
2
13
D4
1 2
34
S1
Power
DGND_B
DGND_B
POWER_B
5V_B
DGND_B
LED_B
DGND_B
DGND_B
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