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SERVICE MANUAL
NAD
SERVICE MANUAL
SERVICE MANUAL
MODEL : C660
NAD 2001
C660
AUDIO CD RECORDER
AUDIO CD RECORDER
C660
C660
AUDIO CD RECORDER
NAD
NAD ELECTRONICS INTERNATIONAL
TORONTO
OVERALL WIRING DIAGRAM 1
ANALOG VOLUME Front Board H/P & OPT_IN JACK Board
6 1 5 1
1 LOUT CN802 CN801 1 20
F2
F2
F2
-34V
-34V
F1
F1
-34V
-34V
-34V
GND
GND
5VU
GND
GND
5VF
KEYIN_2
GND
KEYIN_0
FLD_TXD
FLD_TXD
FLD_CLK
FLD_RST
KEYIN_1
RMC_IN
FLD_CS
FLD_CS
OPT_IN
GND
5V
NC
NC
NC
NC
NC
HP_R
GND
HP_L
LGND
F1
LIN
RIN F3 F2 F4
RGND
6 ROUT CN805 CN803 PN8601 PN803 PN8901
PN203 F2 F4
SPINDLE
Load 6. OPT_IN 5. RED Load
P202
1. HP_L.
PN502
Download CD-RW Board 1. NC
PN511
CD-P Board
PN105
PN508
SPINDLE
SLED
PN201 P505
1 MPREQ PN504
CDR_EMPH Download
20.F2
.
.
.
1.FLD_CS
CDR_EMPH_OUT
REC_TXD
REC_RXD Sled
PICK-UP
GND
CDP_33M F3
PN101 GND
PN503
PICK-UP
P_CLK
P_DATA
PN506
11 P_LRCK
GND PN501
CDP_DOUT
26 MPREQ
SW_STATE
PN402 P_DAMOD
GND
PN401 DIG_F_IN
CD-RW
1 11 21 30
PWR_MUTE PN509
PN403 GND
PN512 PN507
DIG_IN
DIG_IN
OPT_IN
OPT_IN
AD_DATA
AD_LRCK
AD_CLK
GND
GND
MCLK
MCLK
DAMOD
CDR_CLK
CDR_DATA
CDR_LRCK
CDR_LRCK
GND
GND
S_MCK
GND
BCK
DATA
DATA
LRCK
LRCK
P_DOUT
R_DOUT
DUB_SEL
CDR_MUTE_OUT
CDR_MUTE_OUT
CDR_EMPH_OUT
CDR_EMPH_OUT
PWR_MUTE
EXT_RMC
XRST
CDP_MUTE_OUT
CDP_MUTE_OUT
CDP_EMPH_OUT
CDP_EMPH_OUT
GND
HP_L
HP_R
EXT_RMC 1 9
1 8 21 XRST 1 6
PWR_CTL
MGND
5V(U-COM)
12VM
DGND
5VM
AGND
5VA
PWR_FAIL
CDP_MUTE
5V
GND
5VA
GND
M12V
GND
NC
P_DAMOD
5VF
GNDF
-34V
GND34
AC1
AC2
CDP_EMPH_OUT
GND
1 HP_R
HP_L
26 HP_R
30 1
1 8
12 GND
M12V CN901
P_DAMOD
HP_R
5V
1. 5VF
.
.
.
6. F+
1. PWR_CTL
.
.
.
.
.
9. PWR_FAIL
10
DIG_IN
GND
CN401 AGND
5VD1
PN901
CN403 DGND
ROUT
LOUT
CN701 5VD2
+15V
CN201 CN904
+12V
F1 GND
-15V
6 1 I/O Board 5V 1 GND
1 -12 V
PWR Board
CN805
-29-
OVERALL BLOCK DIAGRAM
HD C D S V CD TITLE TRACK TOTAL CHP REMAIN TIME AUTO TRACK TOTAL REMAIN TIME CD R W ERASE
ANALOG DVD SRC MP3 FINALIZE
DIGITAL RECORD
CDRW
OPTICAL
RANDOM PROG DUAL L
dB -A
- -60 -40 -20 -10 -3 0 3
X2 X4 DUBBING RANDOM
SYNC
PROG
KEY
REPEAT 1 A-B ALL R COPY PROHIBIT REPEAT 1 A-B ALL
CDP
FL DRIVE
Sled
Buffer FPGA
u-COM Drive
Drive RF Amp RF Amp (Spindle,Focus,Tracking)
u-COM
SERVO DSP SERVO DSP
+ ENC/DEC + DECODER
ext
Optical Buffer
Digital
EPROM HDCD & MP3
AT27LV010A CS493302 SRC CS8420
ATMEL CIRRUS CIRRUS FPGA
MUX
MUX MUX MUX MUX
POWER DAC DAC ADC S/W S/W
AK4393 AK4393 AK5351
AKM AKM AKM
I/O
ANALOG OPTIC COAX
-30-
BLOCK DIAGRAMS
1. CD-Play Block Diagram
disc
Spindle
motor LD
Driver - Controller
RF Amplifier (H8/3062:Hitachi)
(CXA2581N :Sony) System Control CDR -Controller
I / V AMP Equalizer
Pick-up ALPC
Read Channel
(SF-P151EXV:Sanyo) Focus Error
Servo Processor
Sled Servo
Tracking Error
Stepping
Sledmotor
Focus, Tracking Digital Servo Processor FPGA CDR FPGA
(CXD 3030R:Sony) (XC10TQ114: XILINX)
XILINX
(M63021FP: Mitsubishi ) HDCD &MP3
Focus Servo CDDA/MP3 Switching
Tracking Servo Serial to Parallel
Spindle Servo Data conversion
EFM decoding
CD-DA Decoder
ATAPI Interface
CDP Dout
1Mbit DRAM
1bit DAC
-31-
2. CD-Record Block Diagram
disc
CPLD Encoder/Decoder
Spindle (IC310)
FPGA
(OTI9790:OAK Technology) (XC30TQ114
motor LD CD-Encode : XILINX)
XILINX
Driver RF Amplifier EFM Encode CDDA/MP3 CDP
CD-Decode Switching
(CXA2551R:Sony)
LPM
I / V AMP Equalizer Serial to Parallel
Spindle Pick- up ALPC
ATIP CLV Control
Data conversion
Driver ATAPI I/F
(KRS-200C:Sony) Focus Error
(BA6664 Tracking Error Digital Servo Processor
: Rohm) Wobble Detect Focus Servo
Sled Tracking Servo
motor Sled Servo MP3, HDCD
Spindle Servo
(CS49300:Cirrus Logic)
EFM decoding
Focus Tracking - Controller
Sled Driver (HD84F/3064:Hitachi)
(BA5983FM : Rohm) System Control
Read Channel
SRC
Data Processor
Servo Processor (CS8420:
(AK4393) Audio DAC Cirrus Logic)
8kHz to 96KHz
120dB Dynamic
Range
L/R-CH Jack &
Headphone
-32-
3. I/O Block Diagram
OPTICAL
74HC04
74HC04
BUFFER
BUFFER
P-LRCK
P-DATA
P-BCLK
AK4394
AK4394 ANALOG P OUTPUT
(DAC)
(DAC)
POWER ANALOG R OUTPUT
DOWN MUTE
DEMPH
74HC04
74HC04 RELAY ANALOG INPUT
BUFFER
BUFFER
C
CDP-DOUT COAXIAL P OUT
D
R COAXIAL R OUT
EQ LEVEL
MCK(P)
W 74HC04
74HC04
P-LRCK COAXIAL IN
P-DATA BUFFER
BUFFER
P-BCLK
AK4394
AK4394
MCK(R)
(DAC)
(DAC)
CDR-DOUT 74HC04
74HC04
BUFFER
BUFFER
MUTE
DEMPH OPTICAL R OUT
74HC04
74HC04
BUFFER
BUFFER OPTICAL IN
AK5351
AK5351
(ADC)
(ADC)
BCK F
DATA R
LRCK O
REC N
T
VOL.
-33-
CIRCUIT DIAGRAMS
1. POWER (SMPS) CIRCUIT DIAGRAM (UL)
NOTES) Warning
'00. 11.10
NOTES : Symbol denotes AC ground. NOTE :
NOTES)
NOTES)
NOTES)
Parts that are shaded are critical
With respect to risk of fire or
electricial shock. Symbol denotes DC chassis ground. 1. Shaded( ) parts are critical for safety. Replace only SI2448(UL)
with specified part number.
2. Voltages are DC-measured with a digital voltmeter
during Play mode.
-34-
CIRCUIT DIAGRAMS
1. POWER (SMPS) CIRCUIT DIAGRAM (EUROPE)
NOTES)
NOTES)
Warning
Parts that are shaded are critical
NOTES : Symbol denotes AC ground. NOTE : '00. 11. 10
NOTES) With respect to risk of fire or
1. Shaded( ) parts are critical for safety. Replace only
NOTES) electricial shock. Symbol denotes DC chassis ground.
with specified part number.
SI2674(EUROPE)
2. Voltages are DC-measured with a digital voltmeter
during Play mode.
-35-
2. CD-PLAY CIRCUIT DIAGRAM
-36-
3. CD-RECORD 1 CIRCUIT DIAGRAM
-37-
4. CD-RECORD 2 CIRCUIT DIAGRAM
-38-
5. CD-RECORD 3 CIRCUIT DIAGRAM
-39-
6. I/O CIRCUIT DIAGRAM
-40-
7. FRONT CIRCUIT DIAGRAM
-41-
PRINTED CIRCUIT BOARD DIAGRAMS
1. CD-PLAY TOP P.C.BOARD
2. CD-PLAY BOTTOM P.C.BOARD
-42-
3. CD-RECORD TOP P.C.BOARD 4. CD-RECORD BOTTOM P.C.BOARD
-43-
5. I/O TOP P.C.BOARD
LOCATION GUIDE
6 I/O BOTTOM P.C.BOARD
LOCATION GUIDE
-44-
7. FRONT P.C. BOARD
LOCATION GUIDE
-45-
8. POWER P.C.BOARD
9. H/P P.C.BOARD
-46-
EXPLODED VIEW