NAD C 315BEE User manual

NAD
SERVICE MANUAL
C 315BEE
STEREO
AMPLIFIER
C 315BEE STEREO AMPLIFIER
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TABLE OF CONTENTS
DESCRIPTION P A G E
SERVICE CAUTION…………………………………………………………......3-4
REAR PANEL/FRONT PANEL VIEW………………………………………...5
SPECIFICATIONS…………………………………………………………....6
WIRING DIAGRAM………………………………………………………………7
BLOCK DIAGRAM……………………………………………………. …….......8-12
ALIGNMENT PROCEDURE…………………………………………….....13
SCHEMATICS………………………………………………………………..........14-16
PCB LAYOUT………………………………………………………………..........17-19
TROUBLE SHOOTING GUIDE…………………..........................................20
ELECTRICAL PARTS LIST……………………………………………..........21-27
EXPLODED VIEW…………………………………………………………….....28
EXPLODED VIEW PARTS LIST…………………………………………….......29
PACKING VIEW PARTS LIST………...…………………………………….......30
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PRODUCT SAFETY SERVICING GUIDELINES
CAUTION : DO NOT ATTEMPT TO MODIFY THIS PRODUCT IN
ANY WAY. NEVER PERFORM CUSTOMIZED INSTALLATIONS
WITHOUT MANUFACTURER’S APPROVAL. UNAUTHORIZED
MODIFICATIONS WILL NOT ONLY VOID THE WARRANTY, BUT
MAY LEAD TO YOUR BEING LIABLE FOR ANY RESULTING
PROPERTY DAMAGE OR USER INJURY.
SERVICE WORK SHOULD BE PERFORMED ONLY AFTER YOU
ARE THOROUGHLY FAMILIAR WITH ALL OF THE FOLLOWING
SAFETY CHECKS AND SERVICING GUIDELINES. TO DO
OTHERWISE, INCREASES THE RISK OF POTENTIAL HAZARDS
AND INJURY TO THE USER.
WHILE SERVICING, USE AN ISOLATION TRANSFORMER FOR
PROTECTION FROM AC LINE SHOCK.
SAFETY CHECKS
AFTER THE ORIGINAL SERVICE PROBLEM HAS BEEN
CORRECTED. A CHECK SHOULD BE MADE OF THE
FOLLOWING.
SUBJECT : FIRE & SHOCK HAZARD
1. BE SURE THAT ALL COMPONENTS ARE POSITIONED IN
SUCH A WAY AS TO AVOID POSSIBILITY OF ADJACENT
COMPONENT SHORTS. THIS IS ESPECIALLY IMPORTANT
ON THOSE MODULES WHICH ARE TRANSPORTED TO AND
FROM THE REPAIR SHOP.
2. NEVER RELEASE A REPAIR UNLESS ALL PROTECTIVE
DEVICES SUCH AS INSULATORS, BARRIERS, COVERS,
SHIELDS, STRAIN RELIEFS, POWER SUPPLY CORDS, AND
OTHER HARDWARE HAVE BEEN REINSTALLED PER
ORIGINAL DESIGN. BE SURE THAT THE SAFETY PURPOSE
OF THE POLARIZED LINE PLUG HAS NOT BEEN DEFEATED.
3. SOLDERING MUST BE INSPECTED TO DISCOVER POSSIBLE
COLD SOLDER JOINTS, SOLDER SPLASHES OR SHARP
SOLDER POINTS. BE CERTAIN TO REMOVE ALL LOOSE
FOREIGN PARTICLES.
4. CHECK FOR PHYSICAL EVIDENCE OF DAMAGE OR
DETERIORATION TO PARTS AND COMPONENTS. FOR
FRAYED LEADS, DAMAGED INSULATION (INCLUDING AC
CORD). AND REPLACE IF NECESSARY FOLLOW ORIGINAL
LAYOUT, LEAD LENGTH AND DRESS.
5. NO LEAD OR COMPONENT SHOULD TOUCH A RECEIVING
TUBE OR A RESISTOR RATED AT 1 WATT OR MORE. LEAD
TENSION AROUND PROTRUDING METAL SURFACES MUST
BE AVOIDED.
6. ALL CRITICAL COMPONENTS SUCH AS FUSES,
FLAMEPROOF RESISTORS, CAPACITORS, ETC. MUST BE
REPLACED WITH EXACT FACTORY TYPES, DO NOT USE
REPLACEMENT COMPONENTS OTHER THAN THOSE
SPECIFIED OR MAKE UNRECOMMENDED CIRCUIT
MODIFICATIONS.
7. AFTER RE-ASSEMBLY OF THE SET ALWAYS PERFORM AN
AC LEAKAGE TEST ON ALL EXPOSED METALLIC PARTS OF
THE CABINET, (THE CHANNEL SELECTOR KNOB, ANTENNA
TERMINALS. HANDLE AND SCREWS) TO BE SURE THE SET
IS SAFET TO OPERATE WITHOUT DANGER OF ELECTRICAL
SHOCK. DO NOT USE A LINE ISOLATION TRANSFORMER
DURING THIS TEST USE AN AC VOLTMETER, HAVING 5000
OHMS PER VOLT OR MORE SENSITIVITY, IN THE
FOLLOWING MANNER; CONNECT A 1500 OHM 10 WATT
RESISTOR, PARALLELED BY A .15 MFD, 150V AC TYPE
CAPACITOR BETWEEN A KNOWN GOOD EARTH GROUND
(WATER PIPE, CONDUIT, ETC.) AND THE EXPOSED
METALLIC PARTS, ONE AT A TIME.
MEASURE THE AC VOLTAGE ACROSS THE COMBINATION
OF 1500 OHM RESISTOR AND .15 MFD CAPACITOR.
REVERSE THE AC PLUG AND REPEAT AC VOLTAGE
MEASUREMENTS FOR EACH EXPOSED METALLIC PART.
VOLTAGE MEASURE MUST NOT EXCEED 75 VOLTS R.M.S.
THIS CORRESPONDS TO 0.5 MILLIAMP AC ANY VALUE
EXCEEDING THIS LIMIT CONSTITUTES A POTENTIAL
SHOCK HAZARD AND MUST BE CORRECTED IMMEDIATELY.
SUBJECT : GRAPHIC SYMBOLS
SUBJECT : TIPS ON PROPER INSTALLATION
1. NEVER INSTALL ANY PRODUCT IN A CLOSED-IN RECESS,
CUBBYHOLE OR CLOSELY FITTING SHELF SPACE. OVER
OR CLOSE TO HEAT DUCT, OR IN THE PATH OF HEATED
AIR FLOW.
2. AVOID CONDITIONS OF HIGH HUMIDITY SUCH AS:
OUTDOOR PATIO INSTALLATIONS WHERE DEW IS A
FACTOR, NEAR STEAM RADIATORS WHERE STEAM
LEAKAGE IS A FACTOR, ETC.
3. AVOID PLACEMENT WHERE DRAPERIES MAY OBSTRUCT
REAR VENTING. THE CUSTOMER SHOULD ALSO AVOID THE
USE OF DECORATIVE SCARVES OR OTHER COVERINGS
WHICH MIGHT OBSTRUCT VENTILATION.
4. WALL AND SHELF MOUNTED INSTALLATIONS USING A
COMMERCAL MOUNTING KIT MUST FOLLOW THE FACTORY
APPROVED MOUNTING INSTRUCTIONS A PRODUCT
MOUNTED TO A SHELF OR PLATFORM MUST RETAIN ITS
ORIGINAL FEET (OR THE EQUIVALENT THICKNESS IN
SPACERS) TO PROVIDE ADEQUATE AIR FLOW ACROSS
THE BOTTOM, BOLTS OR SCREWS USED FOR FASTENERS
MUST NOT TOUCH ANY PARTS OR WIRING. PERFORM
LEAKAGE TEST ON CUSTOMIZED INSTALLATIONS.
5. CAUTION CUSTOMERS AGAINST THE MOUNTING OF A
PRODUCT ON SLOPING SHELF OR A TILTED POSITION,
UNLESS THE PRODUCT IS PROPERLY SECURED.
6. A PRODUCT ON A ROLL-ABOUT CART SHOULD BE STABLE
ON ITS MOUNTING TO THE CART. CAUTION THE
CUSTOMER ON THE HAZARDS OF TRYING TO ROLL A CART
WITH SMALL CASTERS ACROSS THRESHOLDS OR DEEP
PILE CARPETS.
7. CAUTION CUSTOMERS AGAINST THE USE OF A CART OR
STAND WHICH HAS NOT BEEN LISTED BY UNDERWRITERS
LABORATORIES, INC. FOR USE WITH THEIR SPECIFIC
MODEL OF TELEVISION RECEIVER OR GENERICALLY
APPROVED FOR USE WITH T.V.’S OF THE SAME OR
LARGER SCREEN SIZE.
8. CAUTION CUSTOMERS AGAINST THE USE OF EXTENSION
CORDS, EXPLAIN THAT A FOREST OF EXTENSIONS
SPROUTING FROM A SINGLE OUTLET CAN LEAD TO
DISASTROUS CONSEQUENCES TO HOME AND FAMILY.
THE LIGHTNING FLASH WITH ARROWHEAD SYMBOL, WITHIN AN
EQUILATERAL TRIANGLE, IS INTENDED TO ALERT THE USER TO THE
PRESENCE OF UNINSULATED “DANGEROUS VOLTAGE” WITHIN THE
PRODUCT’S ENCLOSURE THAT MAY BE OF SUFFICIENT MAGNITUDE TO
CONSTITUTE A RISK OF ELECTRIC SHOCK.
THE EXCLAMATION POINT WITHIN AN EQUILATERAL TRIANGLE IS
INTENDED TO ALERT THE USER TO THE PRESENCE OF IMPORTANT
OPERATING AND MAINTENANCE (SERVICING) INSTRUCTIONS IN THE
LITERATURE ACCOMPANYING THE APPLIANCE.
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SERVICING PRECAUTIONS
CAUTION : Before servicing the A/V Receiver covered by this
service data and its supplements and addends, read and follow the
SAFETY PRECAUTIONS. NOTE : if unforeseen circumstances
create conflict between the following servicing precautions and any
of the safety precautions in this publication, always follow the safety
precautions.
Remember Safety First:
General Servicing Precautions
1. Always unplug the A/V Receiver AC power cord from the AC
power source before:
(1) Removing or reinstalling any component, circuit board,
module, or any other assembly.
(2) Disconnecting or reconnecting any internal electrical plug or
other electrical connection.
(3) Connecting a test substitute in parallel with an electrolytic
capacitor.
Caution : A wrong part substitution or incorrect polarity installation
of electrolytic capacitors may result in an explosion hazard.
2. Do not spray chemicals on or near this A/V Receiver or any of its
assemblies.
3. Unless specified otherwise in this service data, clean electrical
contacts by applying an appropriate contact cleaning solution to
the contacts with a pipe cleaner, cottontipped swab, or
comparable soft applicator.
Unless specified otherwise in this service data, lubrication of
contacts is not required.
4. Do not defeat any plug/socket B+ voltage interlocks with which
instruments covered by this service manual might be equipped.
5. Do not apply AC power to this A/V Receiver and/or any of its
electrical assemblies unless all solid-state device heat sinks are
correctly installed.
6. Always connect test instrument ground lead to the appropriate
ground before connecting the test instrument positive lead. Always
remove the test instrument ground lead last.
Insulation Checking Procedure
Disconnect the attachment plug from the AC outlet and turn the
power on. Connect an insulation resistance meter(500V) to the
blades of the attachment plug. The insulation resistance between
each blade of the attachment plug and accessible conductive parts
(Note 1) should be more than 1M-ohm.
Note 1 : Accessible Conductive Parts including Metal panels, Input
terminals, Earphone jacks, etc.
Electrostatically Sensitive (ES) Devices
Some semiconductor (solid state) devices can be damaged easily by
static electricity. Such components commonly are called
Electrostatically Sensitive (ES) Devices. Examples of typical Es
devices are integrated circuits and some field effect transistors and
semiconductor chip components.
The following techniques should be used to help reduce the
incidence of component damage caused by static electricity.
1. Immediately before handling any semiconductor component or
semiconductor-equipped assembly, drain off any electrostatic
charge on your body by touching a known earth ground.
Alternatively, obtain and wear a commercially available
discharging wrist strap device, which should be removed for
potential shock reasons prior to applying power to the unit under
test.
2. After removing an electrical assembly equipped with ES devices,
place the assembly on a conductive surface such as aluminum
foil, to prevent electrostatic charge buildup or exposure of the
assembly.
3. Use only a grounded-tip soldering iron to solder or unsolder ES
devices.
4. Use only an antistatic solder removal device. Some solder
removal devices not classified a “anti-static” can generate
electrical charges sufficient to damage ES devices.
5. Do not use freonpropelled chemicals. These can generate
electrical charge sufficient to damage ES devices.
6. Do not remove a replacement ES device from its protective
package until immediately before you are ready to install it. (Most
replacement ES devices are packaged with leads electrically
shorted together by conductive foam, aluminum foil, or
comparable conductive material).
7. lmmediately before removing the protective material from the
leads of a replacement ES device, touch the protective material to
the chassis or circuit assembly into which the device will be
installed.
Caution : Be sure no power is applied to the chassis or circuit, and
observe all other safety precautions.
8. Minimize bodily motions when handing unpackaged replacement
ES devices. (Normally harmless motion such as the brushing
together of your clothes fabric or the lifting of your foot from a
carpeted floor can generate static electricity sufficient to damage
an ES device.)
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VOLUME
TREBLE BALANCE
BASS
5
N©DAC EEB513
4689
7
3
12
TONE
DEFEAT
PHONES TAPE VIDEOTUNER CD
AUX MP
DISC
Stereo Integrated Amplifier C 315BEE
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1. DISC INPUT
2. CD INPUT
3. VIDEO INPUT
4. AUX INPUT
5. TUNER INPUT
6. TAPE IN/OUT
7. SPEAKERS OUT
8. AC LINE CORD
9. POWER SWITCH
1. POWER
2. POWER/STAND BY/
PROTECTION LED
3. HEADPHONE
4. INPUT SELECTOR
5. IR RECEIVER
6. TONE CONTROLS
7. TONE DEFEAT
8. BALANCE CONTROL
9. VOLUME CONTROL
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SPECIFICATIONS
PREAMP IN , SPEAKERS OUT
CONTINUOUS AVERAGE POWER 40 W (16 dBW)
OUTPUT INTO 8 OHMS OR 4 OHMS
(Min. power per channel, 20 Hz – 20 kHz,
with no more than rated distortion)
THD+Noise <0.02%
Clippingpower 45W
(maximum continuous power per channel 4 and 8).
IHF dynamic headroom:at8ohms + 3.6 dB
at4ohms + 4.8 dB
IHF dynamic power
(maximum short term power per channel) 8 ohms: 90W (19.5 dBW)
4ohms: 120W (20.8 dBW)
2ohms: 170 W (22.3 dBW)
Damping factor(ref. 8 ohms 1 kHz) > 200
Input Impedance R = 50 kohms
C = 100pF
Input sensitivity (for rated output into 8 ohms) 200 mV
Voltage gain 39dB
Frequency response 20Hz–20kHz <+/-1.0 dB (tone defeat off)
<+/-0.2dB (tone defeat on)
Signal / Noise ratio,A-weighted 95dB ref. 1 W
111dB ref. 40 W
SMPTEI.M. <0.02%
(Intermodulation Distortion, 60 Hz + 7 kHz,
4:1, from 250 mW to rated output)
IHF I.M. < 0.01%
(CCIF IM Distortion, 19 + 20 kHz at rated output)
Headphones Output Impedance 68 ohms
Maximum input signal 7 V
CONTROLS
Treble +/- 5 dB at 10 kHz
Bass +/- 8 dB at 100 Hz
DIMENSIONS AND WEIGHTS NetWeight 5.25kg(11.5Ib)
ShippingWeight 6.5 kg (14.3lb)
DIMENSION (WHD) 435 X70 X 242mm
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TAPE OUT L
DISC L
DISC R
CD R
VIDEO R
AUX R
TAPE1 IN R
TAPE1 IN L
AUX L
VIDEO L
CD L
PREAPM AMP CIRCUIT
BASS
RT31
RT32
RT34
TREBLE BALANCE
SW31
TONE DEFEAT
RT33
VOLUME
PRE-OUT L PRE-OUT R
MAIN IN R
MAIN IN L
POWER AMP
CIRCUIT L
CIRCUIT R
POWER AMP
PROTECTION
CIRCUIT
RL301
MCU(W78E52C)
JK31
R330
POSISTOR
(80 DEGREE C)
HEADPHONE
TUNER R
TUNER L
CONTROL
MP R
MP L
TAPE OUT R
Speaker R
Speaker L
JQX-115F/24
VOL-
VOL+ VOLUME CONTROL
CIRCUIT (REMOTE)
MUTE
Q120
MUTE
Q220
MUTE CIRCUIT
FOR RECORD OUT
TEMP COMPENSATION
CIRCUIT(Q122,Q222 ON THE MAIN HEATSINK)
INPUT AND STANDBY INDICATION LEDS
INPUT SELECTION IC(TC9164CNG)
+/-17V SUPPLY CIRCUIT +/-45V SUPPLY CIRCUIT
MUTE
Q105
MUTE
Q205
MAIN MUTE
CIRCUIT
BLOCK DIAGRAM
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+5V
Sandby control line 18V Power Supply
Control Circuit
+5V
Input selection
Keys and LEDS
+5V
Main Mute
Mute Circuit
Record Out
Circuit
IC503
V
S
G
IR receiver
D501
RED
BLUE
Standby LED
MICROPROCESSOR CONNECTION DIAGRAM
AMBER
Volume
Circuit
NC 1
NC 2
NC 3
Vss 4 SDA
5SCL
6NC
7Vcc
8
IC502
24C01
C504
27P
C505
27P
X501
11.0592MHz
PHONE5
MP IN
DATA
CLK
STB
U301
TC9164
Input Selection IC
P1.0 1
RST 9
RXD/P3.0 10
TXD/P3.1 11
INT0/P3.2 12
INT1/P3.3 13
T0/P3.4 14
T1/P3.5 15
WR/P3.6 16
RD/P3.7 17
XTAL2 18
XTAL1 19
VSS 20 P2.0/A8
21
P2.1/A9
22
P2.2/A10
23
P2.3/A11
24
P2.4/A12
25
P2.5/A13
26
P2.6/A14
27
P2.7/A15
28
PSEN
29
ALE
30
EA
31
P0.7/AD7
32
P0.6/AD6
33
P0.5/AD5
34
P0.4/AD4
35
P0.3/AD3
36
P0.2/AD2
37
P0.1/AD1
38
P0.0/AD0
39
VDD
40 P1.1 2
P1.2 3
P1.3 4
P1.4 5
P1.5 6
P1.6 7
P1.7 8
IC501
AT89S51
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24C01
KEY BOARD IC502
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1
2
3
4 5
6
7
8
NC
NC
NC
VSS
VCC
NC
SCL
SDA
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1 2 3 4 5 6 7
8 9 10 11 12 13 14 15 16 17 18 19 20 21
22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 Vcc
P0.0(AD0) P0.1(AD1) P0.2(AD2) P0.3(AD3) P0.4(AD4) P0.5(AD5) P0.6(AD6) P0.7(AD7) P2.0(A8) P2.1(A9) P2.2(A10) P2.3(A11) P2.4(A12) P2.5(A13) P2.6(A14) P2.7(A15) PSEN ALE/PROG EA/VPP
(T2)P1.0
(T2EX)P1.1
P1.2
P1.3 P1.4 P1.5 P1.6 P1.7 RST
(RXD)P3.0
(TXD)P3.1
(INT0)P3.2 (INT1)P3.3
(T1)P3.5 (T0)P3.4
(WR)P3.6
(RD)P3.7
XTAL1 XTAL2
GND
AT89S51/W78E052C
MAIN BOARD : IC501 PIN CONFIGURATION
OSC
WATCH
DOG PORT 1
LATCH
LATCH
LATCH LATCH
PORT 0 PORT 2
PORT 0 DRIVERS
PORT 1 DRIVERS
PORT 2 DRIVERS
PORT 3 DRIVERS
QUICK
FLASH
RAM
RAM ADDR.
REGISTER
REGISTER
BACC STACK
PIONTER
PROGRAM
ADDRESS
REGISTER
BUFFER
PC
INCREMENTER
PROGRAM
COUNTER
DUAL DPTR
INTERRUPT ,SERIAL PORT
AND TIMER BLOCKS
TMP2 TMP1
ALU
PSW
TIMING AND
CONTROL
INSTRUCTION
REGISTER
P1.0 ------ P1.7P3.0 ------ P3.7
P2.0 ------ P2.7
P1.0 ------ P1.7
PORT 3
PORT
ISP PROGRAM
LOGIC
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L-S1
2
L-S2
3
L-S3
4
L-S4
5
L-S5
7
L-S6
8
L-S7
10
L-S8
11
L-COM 1
6
L-COM 2
9
L-COM 3
12
STB
13
GND
14
R-S1 27 R-S2 26 R-S3 25 R-S4 24 R-S5 22 R-S6 21 R-S7 19 R-S8 18
R-COM 1 23 R-COM 2 20 R-COM 3 17
DATA 16
CLK 15
Vss
1Vdd 28
MAIN BOARD:U301
TC9164CNG
PIN CONFIGURATION
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A. LOWEST VOLUME ADJUSTMENT
3. C onnect a os cilloscope to Left cha nnel binding posts.
1. T urn down the volume potentiomete r to the lowes t s etting.
2. Input a high voltage signal such as 5V from CD input.
4. Observing the oscilloscope, adjus t VR 102, to make the output of speaker the lowest level possible.
5. Adjust VR 202 as in line #4 above, to make the output of the speaker the lowest level pos s ible.
B. IDLING C UR R E NT
4. Connect the DMM to TP3 & TP 4, adjust VR 201 and then fine adjust VR 203 for 7mV +/- 1mV.
3. Connect the DMM to TP1 & TP 2, adjust VR 101 and then fine adjust VR 103 for 7mV +/- 1mV.
1. Connect the DMM to TP1 & TP 2 as well as TP3 &TP4, adjust the idle current to 12.5mV via VR 201/101.
TP1TP2
TP3TP4
V R 101
V R 201 VR 202
V R 203
MAIN BOAR D
C315BE E
V R 103
2. P lace the top cover back on the unit and let unit run idle for 10 minutes (no input signal nor load) .
5 . I ns ta ll the top c over.
VR 102
5. C onnect a os cilloscope to R ight channel binding posts.
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RCA31A
L
RCA31C
L
RCA32A
L
RCA32C
L
RCA33A
L
RCA33C
L
RCA33E
L
R101
470
R103
470
R105
470
C101
100p
C102
100p
C103
100p
R107
470
R109
470
R111
470
C104
100p
C105
100p
C106
100p
R113
470 C107
100p
RCA31B
R
RCA31D
R
RCA32B
R
RCA32D
R
RCA33B
R
RCA33D
R
RCA33F
R
R201
470
R203
470
R205
470
C201
100p
C202
100p
C203
100p
R207
470
R209
470
R211
470
C204
100p
C205
100p
C206
100p
R213
470 C207
100p
R212
1M
R214 220K
R114 220K
R112
1M
R102
1M
R104
1M
R106
1M
R108
1M
R110
1M
R202
1M
R204
1M
R206
1M
R208
1M
R210
1M
Q101
2SC2240
Q103
2SD667A
Q102
2SA970
Q104
2SB647A
R122 1K
R125
2K2
R128
33
R129
10
D103
1N4148
D104
1N4148
R126
4.7K
R127
4.7K
R123
750 MF 1%
R124
470 MF 1%
C113
47uF/25V
C112
47pF/250V
C110
100pF/250V/NP0
R120
220
D102
1N4148 R121
330K
D101
1N4148
R119
390k
C109
0.47uF
1
2
3SW31A
C115 47uF/25V
R131
3K MF 1%
R132 750 MF 1%
R134
3901% MF
R133 180 MF1%
C117 22nF 5%
C118 0.1uF 5%
R137
1K5 MF 1%
R138
412 MF1%
C119 0.22u 5%
C120
1u 5%
C121
470P
TONE DEFEAT SW
R139
20K
OFF
ON
VOLUME POT
BALANCE POT
BASS POT
TREBLE POT
C116
0.1uF 63V
RT31A 10KA
RT32A
10KA
RT34A 20K MN
C145
22nF
R136
220K
D303
1N4001
R320
22K
3
1
2
IC31
AMS1117-5.0
1
2
3
4
D306
DB104
C322
1000uF/16V
C321
100uF/16V
R317
33 1/2W FS
R319
680
R316
680
C314**
220uF 50V
Q308
KSC2690
C313
330p
R311 680 R310 680
R309
680
D301
16V 1/2W
C311
47uF/25V
C307 47uF/25V R308 22K MF 1%
R314
33 1/2W FS
R318
680
R315
680
C315**
220uF 50V
Q306
2SC1815
C312
330p
R313
680
C310
10uF/25V
C309
47uF/25V
R307 20K MF 1%
Q307
KSA1220
Q305
2SA970-BL
C306 0.1u CL23B
C308 0.1uF CL23B
-17V
R312 2K2
D302
1N4148
+17V
R321
510 1/2W PF
R118
220K
RL301
JQX-115F/24
C111
0.1uF
+17V
-17V
C114
0.1uF
Q220
2SC2878
Q120
2SC2878
+45V
Q201
2SC2240
Q203
2SD667A
Q202
2SA970
Q204
2SB647A
R222 1K
R225
2K2
R228
33
R229
10
D203
1N4148
D204
1N4148
R226
4.7K
R227
4.7K
R223
750 MF 1%
R224
470 MF 1%
C213
47uF/25V
C212
47pF
C210
100pF/250V/NP0
R220
220
D202
1N4148 R221
330K
D201
1N4148
R219
390k
C209
0.47uF
4
5
6SW31B
C215
47uF/25V
R231
3K
R232 750 1/6W MF
R234
390 MF 1%
R233 180 MF 1%
C217 22nF 5%
C218 0.1uF 5%
R237
1K5 MF1%
R238
412 MF 1%
C219 0.22u 5%
C220
1u 5%
C221
470P 250V
TONE DEFEAT SW
R239
20K
OFF
ON
BALANCE POT
BASS POT
TREBLE POT
C216
0.1uF
RT31B 10KA
RT32B
10KA
RT34B 20K MN
C245
22nF
R236
220K
R218
220K
C211
0.1uF
+17V
-17V
C214
0.1uF
R215
470
R216
1M
C208
100p
R115
470
R116
1M
C108
100p
DISC
CD
VIDEO
AUX
TUNER
TAPE
REC
CD L
CD R
DISC L
DISC R
VIDEO L
VIDEO R
AUX L
AUX R
TUNER L
TUNER R
TAPE L
TAPE R
REC L
REC R
MP L
MP R
D305
1N4148
1
2
3
4
5
CB31
1
2
3
4
SPKOUT
BINDING POST
+5V
-45V+45V
1 2 3 4 5
CB32
+/- 17V and 5 V Supply
+35V
-35V
1
2
3
4
5
6
7
8
9
CB34
Volume
C323**
10000uF/50V 10%
C324**
10000uF/50V 10%
R332
10
C327
0.22uF
C328
0.1uF
To Power Board
To Power Board
1
2
3
CB54
MP Input
C329
2200uF,50V
C330
2200uF,50V
1
2
3
4
D307
DB104
R283 220/2W FP
R183 220/2W FP
R288
100/2W/FP
R188
100/2W/FP
L-S1
2
L-S2
3
L-S3
4
L-S4
5
L-S5
7
L-S6
8
L-S7
10
L-S8
11
L-COM 1
6
L-COM 2
9
L-COM 3
12
STB
13
GND
14
R-S1 27 R-S2 26 R-S3 25 R-S4 24 R-S5 22 R-S6 21 R-S7 19 R-S8 18
R-COM 1 23 R-COM 2 20 R-COM 3 17
DATA 16
CLK 15
Vss
1Vdd 28
U301
TC9164CNG
CD L
CD R
DISC L
DISC R
VIDEO L
VIDEO R
AUX L
AUX R
TUNER L
TUNER R
TAPE L
TAPE R
REC L
REC R
MP L
MP R
IP SEL DATA
IP SEL CLK
IP SEL STB
MP
R
L
JK31
1
2
3
4
5
CZ31
PHONES SOCKET
N8C320D03
RT33A
20KB
- +
M
RT33C
RT33B
20KB
1
2
3
4
5
6
7
8
9
CZ34
+35V
MOTOR
Document Sheet:
Date: Date: Date:
Drawn PL Checked Approved
by: by: by:
Number:
REV. DateDESCRIPTION APPRO.
Project: State:
PTA Checked
by:
Date:
HS4_C315BEE_B007_Vm1.3_AMP.SCH 1 / 3
C315BEE Vm
Record Mute
IP SEL STB
IP SEL CLK
IP SEL DATA
Volume-
Volume+
Remote mut e
Protection
Standby
+5V GND
Name
C315BEEMain Board
+5V
Q114
KSC2690
Q111
2SA1360
Q107
2SA970
C123
10uF/16V CD11A
C122
0.1uF
Q113
KSC2690
Q118
2SC2240
Q108
2SC2240
Q117
2SC5200
Q106
2SC2240
Q115 2SA1943
Q109
2SA970
Q110
2SA1015
Q316
2SA970
Q116
KSA1220
R148
1K
R151
10K 1/6W CF
R150
10K 1/6W CF
R164
27 1/6W CF
R149
100 1/6W CF
R177
0.068R/2W
R166
360 1/6W CF
R160 82 1/6W CF
R162
4K7 1W FP
R165
412 1/6W CF
R163
4K7 1/2W FP
R181
51 1/6W MF
R153
240 1/6W CF
R173
51 1/6W MF
R174
0.068R/2W
C128
47uF/25V
C127
0.1uF 63V
C130
47nF/63V CL23B
D108 1N4148
D109 1N4148
VR101
100
C132 10uF 25V
R167
1K 1W FP
R168
1K 3W FP
C131
47uF 63V CD110
C133**
220uF 63V CD110
R147
1K1 1/6W CF
R155 82 1/6W MF 1%
R154
100 1/6W CF
R158
100K 1/6W MF
C129 47pF/250V
L11
100uH
R143
100 1/6W CF
R146
470 1/6W CF
C125
470pF/250V NPO
R141
22K
D105
1N4148
R142
22K 1/6W CF
C126
10uF 50V
C140
22N
C138
0.1uF 63V CL23B
C139
0.1uF 63V CL23B
C137
1uF/63V CL23B
R178
1K
R179
56K
D112
1N4148
R331
6K8
R180
22K
L12
1uH
R176
3R3/1W PF
R175
10R/1W PF
R157
4.3K 1/2W MF 1%
-45V
IC11A
TL082D
C136
1uF/63V CL23B
R172
1M 1/6W CF
C135
0.1uF
C134
0.1uF
R156
2.2K 1/6W CF
R171
1M 1/6W CF
R140
220 1/6W CF
Q105
2SC2878
C142
22nF/63V CL23B
C141
0.1uF 63V CL23B
R187
47,1/2W,FS
C143**
220uF
C144
10pF
R189
390
C146
47pF
C124
220uF/10V
R190
3.3K/1W
-45V
D113
4.7V
C147
75pF
C148
75pF
Q214
KSC2690
Q211
2SA1360
Q207
2SA970
C223
10uF/16V CD11A
C222
0.1uF
Q213
KSC2690
Q218
2SC2240
Q208
2SC2240
Q217
2SC5200
Q206
2SC2240
Q215
2SA1943
Q209
2SA970
Q210
2SA1015
Q216
KSA1220
R248
1K
R251
10K 1/6W CF
R250
10K 1/6W CF
R264
27 1/6W CF
R249
100 1/6W CF
R277
0.068R/2W
R266
360 1/6W CF
R260 82 1/6W CF
R262
4K7 1W FP
R265
412 1/6W CF
R263
4K7 1/2W FP
R281
51 1/6W MF
R253
240 1/6W CF
R273
51 1/6W MF
R274
0.068R/2W
C228
47uF/25V
C227
0.1uF 63V
C230
47nF/63V CL23B
D208 1N4148
D209 1N4148
VR201
100
C232 10uF 25V
R267
1K 1W FP
R268
1K 3W FP
C231
47uF 63V CD110
C233**
220uF 63V CD110
R247
1K1 1/6W CF
R255 82 1/6W MF 1%
R254
100 1/6W CF
R258
100K 1/6W MF
C229 47pF/250V
L21
100uH
R243
100 1/6W CF
R246
470 1/6W CF
C225
470pF/250V NPO
C224
220uF/10V
R241
22K
D205
1N4148
R242
22K 1/6W CF
C226
10uF 50V
C240
22N
C238
0.1uF 63V CL23B
C239
0.1uF 63V CL23B
C237
1uF/63V CL23B
R278
1K
R279
56K
D212
1N4148
R280
22K
L22
1uH
R276
3R3/1W PF
R275
10R/1W PF
R257
4.3K 1/2W MF 1%
-45V
IC21A
TL082D
R272
1M 1/6W CF
C235
0.1uF
C234
0.1uF
R256
2K2 1/6W CF
R271
1M 1/6W CF
R240
220 1/6W CF
Q205
2SC2878
C242
22nF/63V CL23B
C241
0.1uF 63V CL23B
+45V
C243**
220uF
R287
47,1W,FS
C236
1uF/63V CL23B
C244
10pF
R290
3.3K/1W
D213
4.7V
-45V
R289
390 C246
47pF
C247
75pF
C248
75pF
C320
100uF/50V CD110
R182
56K 1/6W CF
R282
56K 1/6W CF
Q315
2SC1815
R329
30K
R330
T0=80 degree C
+17V
C332
100uF/50V CD110
D310
1N4148
D311
1N4148
R339
33K
Standby
C333
N.I.
1 2 3 4 5 6 7 8
CB35
Protection Module
R342
4.7K,1/2W,FP
+45V
C338
0.22uF
C334
100uF/16V
C325
0.1uF
C326
0.1uF
+17V
-17V
C335
0.47uF/50V
C336
47uF/25V
R191 1,1/6W,MF 1%
R192
15K,1/6W
VR102
20K,5%
VR202
20K,5%
R292
15K
R291 1,1/6W,1%
C249
N.I
C149
N.I
R343
100,1/6W
C337
39pF
R193
510
R293
510
R294
510
R194
510
-17V
+17V
+17V
-17V
Q121
2SA970
R195
1K 1/6W CF
Q221
2SA970
R295
1K 1/6W CF
+/- 45V Supply
Headphone
C22
10uF
C12
10uF
C11
10uF
C21
10uF
R13 220K
R23 220K
R22 100K
R12 100K
R21 8.2
R11 8.2
+17V
+17V
R26
220K
C23
10uF
R16
220K
R25
100K
R15
100K
R24
8.2
R14
8.2
+17V
+17V
C13
10uF
NAD
THE INFORMATION CONTAINED IN THIS DRAWING IS THE SOLE PROPERTY OF
NAD ELECTRONICS INTL.. ANY REPRODUCTION IN PART OF WHOLE WITHOUT
THE WRITTEN PERMISSION OF NAD ELECTRONICS INTL. IS PROHIBITED
VR103
2K
R17
820
Q122
KSC2690
R196
3K3
VR203
2K
R27
820
Q222
KSC2690
R296
3K3
Change R147,R247 to 1.1k
Change R165,R265 to 412 from 390
Add R332
Change C327 to 0.22uF
Change R330 to 80 degree
Change R329 to 30K
Vm1.3
Vm1.2
Vm1.1
Vm1.0
Vm1.0
Vm1.0
PCB-5: HEADPHONE BOARD Vm1.0
HEADPHONE CIRCUIT Vm1.0
PCB-3: POT BOARD Vm1.0
POT CIRCUIT Vm1.0
PCB-1:MAIN BOARD Vm1.0
MAIN CIRCUIT Vm1.3
** For countries with higher than expected mains voltage, one may change C323 and C324 from LP
10000uF 50V 85°C 10% (P/N 06-10351-04) to HP 10000uF 63V 105°C +/-10% (P/N 06-10361-00), and
change C133, C143, C233, C243, C314 and C315 from CD110 220uF 63V 85°C ±20% (P/N 06-22161-00)
to CD263 220uF 63V 105°C ±20% (P/N 06-22161-01).
All manuals and user guides at all-guides.com

HS4_C315BEE_B007_Vm1.0_KEY.SCH
C315BEE
3 / 3
Vm
DESCRIPTION Date APPRO NAD
THE INFORMATION CONTAINED IN THIS DRAWING IS THE SOLE PROPERTY OF NAD
ELECTRONICS INTL.. ANY REPRODUCTION IN PART OF WHOLE WITHOUT THE WRITTEN
PERMISSION OF NAD ELECTRONICS INTL. IS PROHIBITED
Document
Number: Sheet:
State:
Project:
Drafted PL Checked PTA Checked Approved
by: by: by: by:
Date: Date: Date: Date:
PHONE5
MP IN
C508
100pF
C509
100pF
1
2
3
CZ54
MP Input
S502 S503 S505S501 S506S504
D504 D505 D507D503 D506 D508
R509
10K
R510
10K
DISCTAPE AUX CDVIDEOTUNER
D502
MP
+5V
TAPE VIDEOAUXTUNER CD DISC/MP
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
CZ53
+5V
R519
150
1 2 3 4
CB52
Standby
C502
0.1uF
+5V
IC503
HS0038B4
V
S
G
C510
0.1uF
IR receiver
Add C510,C511,C512
C504
27P
C505
27P
X501
11.0592MHz
R508
10K
Remote Mute
Volume+
Volume-
NC
1NC
2NC
3Vss
4SDA 5
SCL 6
NC 7
Vcc 8
IC502
24C01 C506
0.1uF
R507
10K
R502
10K
+5V
P1.0
1
RST
9
RXD/P3.0
10
TXD/P3.1
11
INT0/P3.2
12
INT1/P3.3
13
T0/P3.4
14
T1/P3.5
15
WR/P3.6
16
RD/P3.7
17
XTAL2
18
XTAL1
19
VSS
20 P2.0/A8 21
P2.1/A9 22
P2.2/A10 23
P2.3/A11 24
P2.4/A12 25
P2.5/A13 26
P2.6/A14 27
P2.7/A15 28
PSEN 29
ALE 30
EA 31
P0.7/AD7 32
P0.6/AD6 33
P0.5/AD5 34
P0.4/AD4 35
P0.3/AD3 36
P0.2/AD2 37
P0.1/AD1 38
P0.0/AD0 39
VDD 40
P1.1
2
P1.2
3
P1.3
4
P1.4
5
P1.5
6
P1.6
7
P1.7
8
IC501
W78E52C
Record Mute
Q119
2SA1015
R186
100K
-18V
R184
10K
R185
10K
+5V
R306
1K
R301
10K
R303
10K
R302
1K
R304
1K
R305
1K
C302
4u7/25V
C303
4u7/25V
Q303
C1815
Q301
A1015
Q304
C1815
Q302
A1015
+5V
C304
220p
C305
220p
C301
10uF
C507
0.1uF
+5V
+5V
Q219
2SA1015
R286
100K
-18V
R284
10K
R285
10K
+5V
R501
10K
+5V
C501
10uF
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
CB53
Inputs Selection
+5V
R511
470
R512
470
R513
10K
R503
10K
Q501
2SC1815
R505
10K
+5V
R50410K
R514
10K
R515
10K
R516
10K
R517
2K2
Q502
C1815
S507
TACT SWITCH
1 2 3 4
CZ52
D501
RED
GREEN
C511
0.1uF
Remote mute Record mute
IR IN
Volume- Volume+
Standby
Standby Protection
Protection
Volume-
Volume+
Remote Mute
Record Mute
Protection
Standby
IP SEL STB IP SEL CLK IP SEL DATA GND +5V
Name
C315BEE Main Board
+5V
D509
1N4148
L51
100uH
D114
1N4148
D214
1N4148
Main Board
C512
0.1uF
SCHEMATICS DIAGRAM (2/3)
PCB-1:MAIN BOARD Vm1.0
MCU CONTROL CIRCUIT Vm1.0
PCB-4: STANDBY BOARD Vm1.0 PART # 01-31505-00
STANDBY CIRCUIT Vm1.0
PCB-6:KEY BOARD Vm1.0
KEY CIRCUIT Vm1.0
03-08951-13 green
LED software
PART #01-31503-00
All manuals and user guides at all-guides.com

PHONE5
MP IN
C508
100pF
C509
100pF
1
2
3
CZ54
MP Input
S502 S503 S505S501 S506S504
D504 D505 D507D503 D506 D508
R509
10K
R510
10K
DISCTAPE AUX CDVIDEOTUNER
D502
MP
+5V
TAPE VIDEOAUXTUNER CD DISC/MP
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
CZ53
+5V
R519
510
C502
0.1uF
+5V
IC503
HS0038B4
V
S
G
C510
0.1uF
IR receiver
C504
27P
C505
27P
X501
11.0592MHz
R508
10K
Remote Mute
Volume+
Volume-
NC
1NC
2NC
3Vss
4SDA 5
SCL 6
NC 7
Vcc 8
IC502
24C01 C506
0.1uF
R507
10K
R502
10K
+5V
P1.0
1
RST
9
RXD/P3.0
10
TXD/P3.1
11
INT0/P3.2
12
INT1/P3.3
13
T0/P3.4
14
T1/P3.5
15
WR/P3.6
16
RD/P3.7
17
XTAL2
18
XTAL1
19
VSS
20 P2.0/A8 21
P2.1/A9 22
P2.2/A10 23
P2.3/A11 24
P2.4/A12 25
P2.5/A13 26
P2.6/A14 27
P2.7/A15 28
PSEN 29
ALE 30
EA 31
P0.7/AD7 32
P0.6/AD6 33
P0.5/AD5 34
P0.4/AD4 35
P0.3/AD3 36
P0.2/AD2 37
P0.1/AD1 38
P0.0/AD0 39
VDD 40
P1.1
2
P1.2
3
P1.3
4
P1.4
5
P1.5
6
P1.6
7
P1.7
8
IC501
W78E52C
Record Mute
Q119
2SA1015
R186
100K
-18V
R184
10K
R185
10K
+5V
R306
1K
R301
10K
R303
10K
R302
1K
R304
1K
R305
1K
C302
4u7/25V
C303
4u7/25V
Q303
C1815
Q301
A1015
Q304
C1815
Q302
A1015
+5V
C304
220p
C305
220p
C301
10uF
C507
0.1uF
+5V
+5V
Q219
2SA1015
R286
100K
-18V
R284
10K
R285
10K
+5V
R501
10K
+5V
C501
10uF
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
CB53
Inputs Selection
+5V
R513
10K
R503
10K
Q501
2SC1815
R505
47K
+5V
R504 100K
R514
10K
R515
10K
R516
10K
R517
2K2
Q502
C1815
S507
TACT SWITCH
C511
0.1uF
Remote mute
Record mute
Volume-
Volume+
Remote Mute
Record Mute
Protection
Standby
IP SEL STB IP SEL CLK IP SEL DATA GND +5V
Name
C315BEE Main Board
IR IN
Volume-
Volume+
Standby
Standby Protection
Protection
+5V
D509
1N4148
L51
100uH
D114
1N4148
D214
1N4148
Main Board
C512
0.1uF
PCB-1:MAIN BOARD Vm1.0
MCU CONTROL CIRCUIT Vm1.0
STANDBY BOARD Vm1.2
PCB-6:KEY BOARD Vm2.0
KEY CIRCUIT Vm1.2
R522
100
R521
330
Q504
DTC114
Q503
DTC114
R524
100
1
1
3
3
4
4
22
D501
3LED
Blue Red
Amber
Q506
DTC114
Q505
DTC114
Q508
DTC114
+5V
1 2 3 4 5
CB52
1 2 3 4 5
CZ52
STANDBY
+5V
R511
470
R512
470
Q507
DTA114
HS4_C315BEE_B007_Vm1.0_KEY.SCH
C315BEE
3 / 3
Vm
DESCRIPTION Date APPRO NAD
THE INFORMATION CONTAINED IN THIS DRAWING IS THE SOLE PROPERTY OF NAD
ELECTRONICS INTL.. ANY REPRODUCTION IN PART OF WHOLE WITHOUT THE WRITTEN
PERMISSION OF NAD ELECTRONICS INTL. IS PROHIBITED
Document
Number: Sheet:
State:
Project:
Drafted PL Checked PTA Checked Approved
by: by: by: by:
Date: Date: Date: Date:
Change LEDs to Blue, change software version from V4.0 to V5.0
1. Change R519 from 510 ohm to 620 ohm (Input LED).
2. Change R522 from 100 ohm to 220 ohm (Power blue LED).
3. Change R521 from 330 ohm to 470 ohm (Power amber LED).
4. Change R524 from 100 ohm to 330 ohm (Power red LED).
03-08951-23 blue
LED software
PART # 01-31503-22
PART # 01-31505-22
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all-guides.com

C402
10nF 250V
D402
KBU8D
C401 10nF 250V
D403
KBU8D
F41
T3.15AL/250V For AH Version
1
2
3
4
5
6
7
CB41
Transformer
DS401
LAMP
DS402
LAMP
+45V
-45V
1
2
3
4
5
CB43
+/-45V Supply
1
2
3
CB42
+/-17V and 5V Supply
8V
0V
34.6V
34.6V
0V
25.2V
25.2V
1
2
3
CB45
1
3
CB44
C403
4.7nF/400V
C404
0.22uF
AC POWER CORD
SW52
POWER SWITCH
!
T401
RED
VIO
GRY
1
2
3
CZ45
Power Switch
ORG
Transformer
!
1
2
3
CZ44
Transformer
BLK
1
2
3
4
5
6
7
CZ41
BLUE
BLUE
HS4_C315BEE_B007_Vm1.0_POWER.SCH
C315BEE
2 / 3
Vm
REV DESCRIPTION Date APPRO
Document
Number: Sheet:
State:Project:
Drafted PL Checked PTA Checked Approved
by: by: by: by:
Date: Date: Date: Date:
!
!
CB46
CB47
CZ46
CZ47
To Main BoardTo Main Board
Mains In
To Bulbs
NAD
THE INFORMATION CONTAINED IN THIS DRAWING IS THE SOLE PROPERTY OF NAD
ELECTRONICS INTL.. ANY REPRODUCTION IN PART OF WHOLE WITHOUT THE WRITTEN
PERMISSION OF NAD ELECTRONICS INTL. IS PROHIBITED
T1.6AL/250V For C Version
Add C404 & L41
L41
F5B RH 26*30*16
SCHEMATICS DIAGRAM (3/3)
PCB-2:POWER BOARD Vm2.0
POWER CIRCUIT Vm1.0
All manuals and user guides at all-guides.com

RT33
NAD C315BEE POWER Vm2.0
PCB-3: POT BOARD Vm1.0
COPYRIGHT C 2007
PCB-2: POWER BOARD Vm2.0
To Switch
T3.15AL250V For 120V Mains
T1.6AL250V For 230V Mains
JK31
CZ31
COPYRIGHT C 2007 C315BEE POT BOARD Vm1.0
NAD
J31
NAD ELECTRONICS
PCB-5: HEADPHONE BOARD Vm1.0
S507
PCB-4: STANDBY BOARD Vm1.0
DS401
CB45
D501
(RED)
CZ34
+45V
(WHITE)
-45V
(BLACK)
GND
CB42
DS402
C402
NAD ELECTRONICS
J42
J41 J44
D403
RED
D402
C401
J43
BLUE
CB41
CB43
BLUE
F41
C404
CB44
To Transformer
CB47
CB46
To AC Cord
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SPKOUT
PCB-1: MAIN BOARD Vm1.0
(-45V)
J153
C233
C131
SPK OUT L RL301 J81
D310 D311
R339
C333
Q315
R329
J176
R330 Q222
Q217
R296
R279
J181
R273
TP2
J141
R342
D212
R278 C240
J152
J142
TP1
(+45V)
J144
Q218
R280
C231
Q215
R274
R277
J139
J138
SPK OUT R
J140
R281
C238
C141
C241
C138 R181
(+45V)
RED WHITE
(-45V)
BLACK
J114
J115
(GND)
J110 J109(+45V)
(-45V)
Q115
R177
R174
Q117 TP4
(-45V)
J107
J112
TP3
SPK OUT L
J106
J88
J108
J12
J122
C133
J179
R133
R343
D306
C337
J48
Q202
Q102
R233
J149
C512
RT34
CB53
R508
C218 C118
J80
R136
RT31
R236 C217
R134
C117
R234
C245
C120
RT32
R139
C119
C145 R137
C219 R237
R238
R239 R138
C220 Q119
Q219
D214
C501
D114
R286 R186
R511
C507
IC501
R512
R285
L51
R185 R501
R284 R184 D509
C307 Q308
R309
C313
C328
J60
C505
X501
J69
(+5V)
J67
R513
R503
J66 J65
J52
(+5V)
J98
J64
C511
R504
R505
J58
J70
IC502
C504
Q501
C506
C301
R515
R514
Q301
R302 R306
R304
(+5V)
J54
J55 J56
R516
R517
Q502
(DGND)
J73
Q302 R305
R303 Q303
C304
R317
C321
R311
C322
R310
R319
R316
Q306
D301
J63
J62
J87
C311
J53
(DGND)
(+5V)
J51
J49
R301
J50
D302
J137
R312
C305 Q304
R129
(-17V)
GND-8
R225 C212
H2
C211
Q203
R229
R224
J4
R124
R228
J44
J43
R128
C213
R227
R226
J45 (+17V)
C214
D203
D103
Q204
D204
D104
Q104
C302 C303
CB54
R125
Q103
C112 J33
J34
J37
J39
J38
J35
C111
J40
C114
C113
J36
R127
R126
J42
J117
C243
(+17V)
J46
Q307
C308
C309 Q305
R308
J170
(+17V)
C306
C248 R265
J128
R272
VR203 R271
R256
C234
R27
VR201
R262
R268
R263
R267
H4
C236 IC21
R232
C237
R231
C235
C221
SW31
C121
D213
J182 J133
C246 Q209
R253
R248
C244
C229
Q211
Q208
J167
J155
Q207
J156
Q206
J160
C227
R254
R247
R292
C249 VR202
J157
L21
R291
R255
J165
R243 R249
(AGND)
D205 R242
R257
R264
C232
J136
J134
Q216
J132
Q213
Q214
J131 C247
Q210
R266
H6
R290
J83
(+36V)
J166
(AGND)
J79
R131
R132
J76
(AGND)
J75
J57
(PRE OUT L)
J15
(PRE OUT R)
J91 (MAIN IN R) J147
J162
(MAIN IN L)
J163
J161
J82
J71
(AGND)
J72
J86
D307
CB34
J150
R502 R507
CB32
J174
C330
C315
R318 R315
R314
J47
R313
C329
C314
C310
C312 R307
R289
R295
Q221
C225 C226
C224
R250
C228
R251
R246
J84
(PRE OUT R)
J151
J169
J13(+17V)
J90
(DGND)
J93
(-17V)
C125 C126
NAD ELECTRONICS
NAD C315BEE MAIN Vm1.0
COPYRIGHT C 2007
(PRE OUT R)
(PRE OUT L)
R24 R14 R25 R15
R140
R240 J89
(MAIN IN R)
J95
J74
(AGND)
J85
(MAIN IN L)
J96
J158
J97 (PRE OUT L)
J94
H1
R218
C209 D201
R219
R220
J41
C215
C115
C210
C110
R221
D202
R222
Q201
C216
C116
R223
R123
R118
C109
D101
R119
J28 J29 J30
J31 (+17V)
J32
(PRE IN L)
(PRE IN R)
(-17V)
C326 C325
R120
U301
Q101
R122
R121
D102
C124
R189 R195 Q121 R150 C128 R151 R146
D112
J1
R180
Q316
R331
J26
J27
Q110
VR101
J120
J113 R143
R172
R287
C324
J173
C323
R187
J119
C143
J126
J125
D208 D108
C147
J121
C230
R260 R160
C130
R258 R158 D209 R241
C222
R141
D109
C122
J168
J172
C123
Q111
H5
Q108
J123
C127
J8
Q107
R154
C223
Q205 Q105
R193
R293
J7
R26 C23
R16
C13
L11 J105
Q106
R191 R155 R149
D105
R142
C129
Q109
C146
VR103
R153
R171
R148
C134
R17
IC11
J145
C137 C135
J11
C144
R147
C149 VR102
R192 D113
R178
J99
Q118 R179 C140
J124
R157
J116 R164
C132
J178
R162
R168
R163
R167
D305
J103
J159
Q116
Q113
Q114
J118
R166
H3
R165
R321
C148
R156
C136
J10 R105
(+45V)
R320
SPK OUT R
L12 L22
J14
R276 R275 R283
C320
R282
C239
C242
R190
C332
C334
J6
J16
D303
C335 J78
C338
R182
J102
J9
CB35
C336
R194
Q220
C12
C21
J177
Q120
C11
C22
RCA33
R294 C107
J19
C207
R113
R114
J17
J18
C106
R213 R214 R111
R112
J77 C206 R212
R211
C105 C205
R110 R109
R210 R209
C104 R108
R107
C204
C103
R207 R208
R106
C203
R206 R205
J21
C102
J22
R104 R103
C202
C101
R204 R203 R101 R102
J23
C201 C108
R202 R201
R116 RCA32
RCA31
R115
J25
C208 R216
J24
C327
R215
R332
Q122
R173
R196
J101
R183
CB31
R188
J2 R175
C142
R288 J3
C139
J5
R176
Heatsink Assembly 01-31500-00 : With R330 Q215, Q217, Q115, Q117, Q122
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(BOTTOM VIEW)
PCB-6: KEY BOARD Vm1.0
CZ53
S504
S502
NAD C315BEE KEY Vm1.0
COPYRIGHT C 2007
NAD ELECTRONICS
S501 S503
D504
D505
D503
(TOP VIEW)
PCB-6: KEY BOARD Vm1.0
SVG
S506
D502
R510
R509
S505 PHONE5
C502
IC503
CZ54
D508
C509 C508
TP501
C510
D506
R519
D507
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