NAD C340 User manual

IVANVW
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STEREO
INTEGRATED
AMPLIFIER
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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 No. Description
F901*AH 252163 4A-125V UL/T-237 Time lag
F901*B1, B, C 252074 T2A L/250V SE-EAK Time lag
NOTE:
<*AH> : U.S.A. CANADIAN MODEL ONLY. <*B1> : AUSTRALIAN MODEL ONLY.
<*C> : EUROPEAN MODEL ONLY. <*B> : U.K. 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 A are critical with regard to the risk of fire and
electric shock. Replace only with parts recommended by the manufacturer.
CONTENTS
DESCRIPTION PAGE
SERVICE SAFETY PRECAUTIONS --~-~-->-=77>7777>7777- 2
FRONT PANEL / REAR PANEL VIEW ~---~--7-7-~777-77>-~ 3
SPECIFICATIONS... 227s sr ecne ee eseneseee caeaaoeeee 4
ALIGNMENT PROCEDURE 9 ~-~~-~--~--7-7---"-"-------- 5
WIRING DIAGRAM --~---------------~----------------- 6
BLOCK DIAGRAM -------------------------+--+-------- 7
MICROPROCESSOR CONNECTION DIAGRAM ------------ 8
SCHEMATIC DIAGRAM —------------------------------ 9-10
PCBLAYOUT 9 ~----==------------------22+2-2----- 11-12
IC BLOCK DIAGRAM) ~=-~---~----------------------: 13
EXPLODED: VIEW) <=<252-ese-so-cesaecsosuehsetetastess 14
EXPLODED VIEW PARTS LIST ------------------------ 15-16
ELECTRICAL PARTS LIST ------------------------------ 17-18
PACKING DIAGRAM / PARTS LIST ---------------------- 19

WARNING:TO PREVENT FIRE OR ELECTRIC
SHOCK, DO NOT EXPOSE THIS APPLIANCE
TO RAIN OR MOISTURE.
FRONT PANEL CONTROLS
1 7
Stereo integrated Amplifier C 340
© NAD 1098 C340
1.
POWER
ON/OFF
4.
INPUT
SELECTORS
7.
TONE
DEFEAT
2.
HEADPHONE
SOCKET
5.
SOFT
CLIPPING
INDICATOR
8.
BALANCE
3.
INFRA-RED
REMOTE
CONTROL
6.
BASS
&
TREBLE
CONTROLS
9.
VOLUME
COMMAND
RECEIVER
angle
is
intended
to
alert
the
user
of
the
presence
of
unin-
ed
to
alert
the
user
of
the
presence
of
important
operating
sulated
"dangerous
voltage"
within
the
product's
enclo-
and
maintenance
(servicing)
instructions
in
the
literature
sure;
that
may
be
of
sufficient
magnitude
to
constitute
a
accompanying
the
appliance.
;
The
lightning
flash
with
arrowhead,
within
an
equilateral
tri-
The
exclamation
point
within
an
equilateral
triangle
is
intend-
risk
of
electric
shock
to
persons.
REAR PANEL CONNECTIONS
SPEAKER IMPEDANCE
40 MIN, (SPEAKER
TAPE 2
‘TAPE 3
TUNER 0180 = =CD «VIDEO «AUX =N OUT) IN) (OUT PRE-OUT MAIN IN
-O©OOOOO0©OCD x,
OOOOOOOMOOGSGD
rpererery:
© NAD 1998 C240
1.
TUNER
INPUT
4.
VIDEO
INPUT
7.
TAPE
2
IN,
OUT
10.
SOFT
CLIPPING
2.
DISC
INPUT
5.
AUX
INPUT
8.
PRE
OUT
11.
SPEAKERS
3.
CD
INPUT
6.
TAPE
1
IN,
OUT
9.
MAIN
IN
12.
AC
LINE
CORD
13.
NAD
LINK
IN,
OUT

SPECIFICATIONS
Test conditions
1. Power Supply Voltage & Frequency
AH Type ~----------------- 120V / 60Hz
C.B,B1 Type —-----------—-- 230V / 50Hz
2. Load Resistance
Speaker Terminal -------~-- 8 ohms / 4 ohms
Other Terminal—-------—--- 47k ohms
3. Temperature & Humidity
Temperature -~---------——- 5 ~ 35°C
Humidity ---------------—- 45 ~ 85 % RH
4. Standard Measurement Point (S.M.P.)
SPK -------~-----~-----— Front Speaker Terminal L/R ch
Note:
B/B1
type
measurement
is
the
same
as
C
type
unless
otherwise
noted.
Measurement Item
Max.
Power
20Hz
/
1kHz
/
20kHz
=
50W
Both
Channe!
Driven
8Q
Load
Max.
Power
20Hz
/
1kHz
/
20kHz
=
50W
Both
Channel
Driven
4Q
Load
Line
T.H.D.
20Hz
/
1kHz
/
20kHz
-
28.5dBV
S
0.1%
Line
Separation
100Hz
-
17dBV
2
55.0dB
The
Reverse
Channel!
10kHz
~
17dBV
2
35.0dB_
Terminated
with
5.1kohm
Hum
&
Noise
CD
No
Signal
2
-55.0
dBV
Terminated
With
5.1kohm
Volume:
Min.
2
-60.0
dBV
(IHF-C)
Bass
Min.
100Hz
-10dBV
Vol:
Mech.Center
-
6.0
+
1.5
dB
Bass
/
Min.
Bass
Max.
JOOHz
-10dBV
Vol:
Mech.Center
+
6.0
+
1.5
dB
Bass
/
Max.
Treble
Max.
10kHz
-10dBV
Vol:
Mech.Center
+
6.0
+
1.5
dB
Treble
/
Max.
Treble
Min
10kHz
-10dBV
Vol:
Mech.Center
~75
+
1.5
dB
Treble
/
Min.
Availabie
Remote
Control
Unit
RC-450

ALIGNMENT PROCEDURE
1. Idle Current
a.
By
adjusting
R534
and
R634,
set
the
voltage
between
test
points
P531
and
P631
to
6.0mV+1.0mV
immediately
after
the
power
is
switched
on.
b.
After
4
~
6
minutes
with
the
power
on,
readjust
R534
and
R634
to
5.0mV+1.0mV.
2. Offset Voltage
a.
After
4
~
6minutes
with
the
power
on,
adjust
R544
and
R644
to
OmV+20mV.
PCB LAYOUT
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NOTE Oo
_ THE COMPONENTS IDENTIFIED BY MARK A\ ARE CRYTICAL FOR SAFETY. !
REPLACE ONLY WITH PART NUMBER SPECIFIED.
. ELECTROLYTIC CAPACITORS (4 ) ARE IN uF/WV.
. ALL CAPACITORS ARE IN pF/SOVV UNLESS OTHERWISE NOTED. 0716 SEL4910D-0
EX) 030 3pF 330—33pF 331— 330pF 333— 0.033uF
. ALL RESISTORS ARE IN OHMS 1/6 WATTS UNLESS OTHERWISE NOTED. 1 Ce alten
. CIRCUIT 1S SUBJECT TO CHANGE FOR IMPROVEMENT.
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NAD-00124 / DRUCK 1

PREOUT MAIN IN
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PCB LAYOUT
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U01
pe ee
Head phone PC board
NAETC-6372
U05
Control PC board
NAAF-6361
U03
Sub power supply PC BOARD
NAPS-6360
U02
247 =
NAD-00124 / DRUCK 3

NAD-00124 / DRUCK 4
U09 : Power supply PC board NAPS-6367
era a
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T2AL/250V
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Semen :
—
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NADG-6368
-12-
U14 : NAD link PC board
NADG-6368
U13 : Remote cont. PC board
’ NAETC-6371
U15 : Sub circuit PC board
NAETC-6513
U11 : Power switch PC board
NASW-6369
U16 : NAETC-6467

IC BLOCK DIAGRAM
Q491 : TA7291S MOTOR DRIVER IC
Vcc Vref
Q301 : TC9273N FUNCTION SELECT IC
VSS VDD
10-BIT
Latch Circuit
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“43
~16-

ELECTRICAL PARTS LIST
NOTE: Replacement of the transistor of mark * , if necessary, must be made
from the same beta (HFE) as the original type.
U1: Main circuit PC board (NAAR~6359)
REF. No. PART No. . DESCRIPTION REF. No. PART No. DESCRIPTION
Capacitors Transistors
C403,C404,0413, 354781009 10 uw F,50V,Elect. Q501,Q504,Q601, 2211793 2SA992-E
0414,0521,0522, Q604,Q504
C561,C562,0C621, Q502,Q503,Q602, 2211733 2861 845-E
0622,C661 C662, Q603
C925-C827 Q506,Q606,Q505, 2211255 28C01815-GR
0409,C410,C571, 354744709 47 w F,16V, Elect. Q512,0605,Q612
C572 Q507,Q514,Q607, 2203000 2SA1930
0411,0412,C507, 354764709 47 w F,35V, Elect. Q614
C508,C607,C608 Q508,0513,Q608, 2203010 2805171
0417,0511,C611, 374721044 0.1 u F+5%,50V,Plastic Q613
0921,C933,0942, Q509,Q510,Q609, 22241254 NJM431L
0943,0944,0945 Q610
0418,0941 354762209 22 uw F,35V, Elect. Q511,Q611 2212654 or 2803421-Y or
0451,0452 354780109 1 uw F,50V,Elect. 2212653 28C3421-0
0457,C458
354741019
100
4
F,16V,Elect.
Q511a,Q611a
27160416A
Heat
sink
(TR)
C468,C469,C569, 354761019 100 uw F,35V,Elect. Q511b,Q611b, 838430107 3TTB+10S(BC),
C570 Q921b,Q922b Self-tapping
C483,C484*AH 374721015 100pF + 10%,50V, Plastic Q515 2203113 or * 2SA1986-0 or
C483,C484*B1,B,C 374721015 100pF+10%,50V,Piastic 2203112 2SA1986-R
0501,C601 354742209 22 uw F,16V,Elect. Q516 2203123 or * 2SC05358-0 or
0504,C604 374721015 100pF+10%,50V, Plastic 2203122 2805358-R
0512,0612 354722229S 2200 us F,6.3V,Elect. Q517,Q617 2211354 or 2SA949-Y or
C523,0524,C623, 354781019 100 4 F,50V, Elect. 2211353 2SA949-0
C624 Q518,Q618 2211634 or 28C02229-Y or
C565,C665 374721034 0.01 yp F5%,50V,Plastic 2211633 28C2229-0
0573,C574 354782209 22 u F,50V,Elect. Q519,Q619 2213631 RN1241-A
C593 354721019 100 yc F,6.3V,Elect. Q591,Q691 2211733 or 2S01845-E or
0917,0918 3504344 10000 x F,50V,Elect. 2211732 2801 845-F
0923 354762229S 2200 ut F,35V,Elect. Q593 2211793 or 2SA992-E or
C924 354761029S 1000 x F,35V,Elect. 2211792 2SA992-F
C946,0947 374731044 0.1 x F25%,100V,Plastic Q595,Q596 2213284 28C1740S-R
Diodes Q615 2203113 or * 2SA1986-O or
D573,D754 224471803 MTZJ18C Zener 2203112 2SA1986-R
D601-D607 223163 188133 Q616 2203123 or * 2SC05358-0 or
D671,D672 223163 188133 22031 22 2805358-R
D921-D924,D941 22380260 or RL1N4003 or Resistors
22380032 or 1SR139-100 or R409,R410,R417, 415421503 R25G-15 Carbon 2W
22380035 GP104003E R418
D931-D934, 223163 188133 R467,R468 415421013 R25G-100
D936-D939,D942 R478,R479 443522214 A 2202 +5%,1/2W, Metal oxide
les R519,R520,R619, 443521014 Ay 10082 +5%,1/2W, Metal oxide
Q301 22240881 TC9273N-010 R620
Q491 22240239 TA7291S R521,R522,R621, 4400044F A 2.7kQ +5%,5W, Metal oxide
Q561 22240293 or NJM4558L-D or R622
22240247 BA15218N R533,R538,R633, 453530104 A1Q5%,1/2W, Metal
Q92i 2227801 85JR 78M1 8HF(NJM78M1 8FA) R638
Q921a 27160209 Heat sink (RAD-67) R534,R634 5210255 NO6HR200BC, Trimning
Q922 2227901 85JR 79M1 8HF(NJM79M1 8FA) R535,R536,R635, 443524704 A 47Q +5%,1/2W, Metal oxide
Q922a 27160429 Heat sink (TR) R636
Q923 222780565JR 78M56(NJM78M56FA) R537,R637 4500030 A\ MPC722-5WK-0.1 Netal plate
Q401,Q402 2214736 or 2SK369-BL or R539,R639 453630824 A 8.2Q+5%,1W, Meta
2214735 2SK369-GR R540,R640 453530334 A\ 3.32 +5%,1/2W, Metal
Q403,Q404,Q407, 2211085 2SA872A-E R541,R641 443625614 A\ 5602 +5%,1W, Met oxide
Q408,Q404 R544,R644 5210258 NO6HR1KBC,Trimmn g
Q405,Q406 2215116 2801775-F R545,R548,R645, 415422203 R25G-22
Q481,Q482 2215196 2SK364-BL R648,R940
Q483 2212600 DTA124ES R923 4000116 Z\ MPC74-5WK-0.1,M:tal plate
Q484 2213290 DTC114ES R941 453530824 A 8.222+5%,1/2W, Meal
Switches
$501 25065286 NSS-22112 Slide switch
Coils
L501,L601 231176S S coil S~1.36
L502,L503,L602, 5597-45502 Ferrite core
L603
~17-

REF. No. PART No.
Jacks
D916,D935,0943 223163
Transistors
Q594 2211793 or
2211792
Q911,Q913 2211255
Q912,Q914-Q916 2211455
ICs
Q917 22240293
Others
R935 4000150
JL911a 25051112
JL922b 25050271
U03: Gontrol PC board (NAAF-6361)
Capacitors
C421 ,0422 374722234
C423,0424 374721044
C425,0426 374724724
C427,C428 374722244
C429,0430 374721054
C431 ,0432 354780229
Resistors
R429,R435 5132447
Switches
$401 25035698
Others
R439 5142445
R441 5132446
JL401b 25050273
DESCRIPTION
NPJ-4PDBL202 Jack
NPJ-6PDBL380 or
NPJ-6PDBL323 Pin jack
Wire holder NSCT-4P875
Wire holder NSCT-3P894
Wire holder NSCT-5P896
Wire holder NSCT-7P898
Wire holder NSCT-8P899
Wire holder NSCT-9P900
NSCT-29P1623 or
NSCT-29P756 Socket
NSCT-8P2035 Socket
NPLG-2P29 Plug
Wire trap NPLG-4P587
Wire trap NPLG-5P588
Retainer (Ground)
Wire clamp CP-1S
10 u F,50V,Elect.
RS604
DIODE RS603M or
RBV602
Heat sink(SCR)
3TTB+10S(BC),
Self-tapping screw
SF8JZ47 SCR
HER303F
18S133
P304 25045356
P301-P303 25045565 or
25045508
Wire holders
JL92ta 25051088
JLO516 25051107
JL912a 25051109
JL922a 25051111
JL501a 25051112
JL401a 25051113
Others
JL701b 25051836 or
25050969
P45ta 25052137
P531,P631 25055038
JL921b 25055625
JL504b 25055626
£501 27141059
E921 260224
U02: Sub power supply PC board (NAPS-6360)
Capacitors
C919,C920 354781009
Diodes
D911 22380281
D912 22380274 or
22380038
D912a 27160419
D912b 838430107
D913,D914 226065
D915 2238001 2F
2SA992-E or
2SA992-F
28C01815-GR
2SA1015-GR
NJM4558L-D
PTH9M04BC222TS2F333
Thermistor
NSCT-8P899 Wire holder
NSCT-7P99 Socket
0.022 4 F5%,50V, Plastic
0.1 uw F+5%,50V,Plastic
4700pF + 5%,50V, Plastic
0.22 u F5%,50V,Plastic
1 wF4+5%,50V Plastic
2.2 4 F,50V,Elect.
REF. No. PART No. DESCRIPTION
JL912b 25050282 NSCT-5P110 Socket
U07: Display PC board (NADIS-6365)
Capacitors
C722,C723,C728 354780109 1 uw F,50V,Elect.
Diodes
0705,D708,0723 223163 188133
D707 224470562 MTZJ5.6B Zener
D711-D719,0721 225292D SEL4310G-D LED
les
Q702 22241257 HD404314D24H
Transistors
Q703 2213160 DTC124ES
Switches
$703-S709 25035675 NPS-111-111-S628
Wire holders
JL702a 25051089 NSCT-5P876
JL703a 25051090 NSCT-6P877
JL704a,JL704b 25051091 NSCT-7P878
Filters
X702 3010163 CST4.19MGW
Others
£701 27141059 Ground retainer
JL701a 25051873 or NSCT-29P1660 or
25050935 NSCT-29P722 Socket
U09: Power supply PC board (NAPS-6367)
F901la 25050065 YSH403T Fuse holder
F901b*AH 29360467 4A/125V,Fuse label
P901a 25055675 Piug NPLG-2P631
U10: NAD link PC board (NADG-6368)
Capacitors
C751,0792 374721044 0.1 u F5%,50V,Plastic
C753 354781099 0.1 uw F,50V,Elect.
Diodes
D751-D754 223163 188133
les
Q751 222740005 74HCOOP
Q752 22241266 -Z86C081 2PSC-R2536
Others
JL703b 25055627 NPLG-6P589 Wire trap
JL951b 25050267 NSCT-3P95 Socket
L751 233454K220 NCH-1452 220K Choke coil
P751 25045568 NPJ-2PDY383 Pin jack
X751 3010252 CST12.0MTW Resonator
Ui1: Power switch PC board (NASW-6369)
c901 3500191 A\ DE7150F-103M IS Capacitor
$901 25035550 ZA\ NPS-111-L512P Power switch
Cc901a
27301216
A\
$B1925A
Capacitor
cover
U13:
Remote
cont.
PC
board
(NAETC-6371)
C725 354721019 100 4 F,6.3V,Elect.
D720 223163 18$133 Diode
JL702b 25055626 NPLG~5P588 Wire trap
U702 24130011 PIG-12043TE2 Remote sensor
E702 27141059 Retainer (Ground)
N14RGLC10KA25F,Variable
U14:
Speaker
PC
board
(NAETC-6424)
NPS-123-L661 Push SW.
N1I6RGL2Z0KBTP30F, Variable
N14RGLO20KMN25F, Variabl
NSCT-9P101 Socket
U05: Head phone PC board (NAETC-6372)
NSCT-5P876 Wire holder
JY-6315-03-090 Jack
A 2.22 +5%,1/2W, Metal
JL504a 25051089
P504 25045502
U06: Transformer PC board (NAETC-6364)
Resistors
R911,R912 453530224
Others
JL911b 25050285
NSCT-8P113 Socket
D581 223163 18$133 Diode
JL501¢ 25050272 NSCT-8P100 Socket \
P503 25060147 NTM-4PDMNO75 Terminal
Q581 2213640 DTC123US Transistor
RL501 25065517 A\ NRL-2P5A-DC24-098 Relay
U15: Sub circuit PC board (NAETC-6512)
Capacitors
C473,C474 354741019 100 ut F,16V,Elect.
Ics
Q452 22240656 NE5532AN
Others
P451b 25055912 NPLG-8P865 Plug
—18 -

PACKING DIAGRAM
P11*AH
PO:
Parts list
REF.No. PART No. Q'tv DESCRIPTION REF.No. PARTNo. Q'tv DESCRIPTION
P01 24140380S 1 Remote control unit(RC-450) P09 29342609 1 Instruction marqual U7
P02 29053322 1 Carton box C340 P10*AH 29355233 1 Instruction sheet E
P03 29091858 | Pad Ass’v P11*#AH 29365078 1 Warrantv cad CNAD)
P04 29095740 1 Sheet
P05 29100034-1 1 Stvrene bag NOTE: <AH>: U.S.A.. Canadian model ony
P06 3010124 2 Batterv UM-4 <B> : U.K. model onlv
P07 2010317 1 NAD link cable <B>: Australian model onlv
<C>: European model only
Proprietary information for servicing purposes only. The information herein may not be used
commercially without the prior written agreement of NAD Electronics Ltd, London, England.
~19-