NAD CI980 User manual

NAD
SERVICE MANUAL
CI 980
MULTI-CHANNEL
AMPLIFIER
CI 980
MULTI-CHANNEL AMPLIFIER

TABLE OF CONTENTS
DESCRIPTION P A G E
SERVICE CAUTION…………………………………………………………..3-4
SPECIFICATIONS…………………………………………………………...5
WIRING DIAGRAM……………………………………………………………...6
PCB LAYOUT………………………………………………………………..20-24
EXPLODED VIEW PARTS LIST……………………………………………....36
CIRCUIT DIAGRAMS.....
TROUBLE SHOOTING GUIDE…………………..........................................10
EXPLODED VIEW ......................................................................................35
..………………................................................11-19
ELECTRICAL VIEW PARTS LIST…………………………………...…....25-34
BLOCK DIAGRAM…………………………………………………………....7-9

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.
3

SERVICING PRECAUTIONS
CAUTION : Before servicing the poweramplifier 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 poweramplifier 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 poweramplifier 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 poweramplifier 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.)
4

SPECIFICATIONS
ENGLISHDEUTSCHNEDERLANDSSVENSKAРУССКИЙ
5
CI 980
Continuous Output Power 8 Ohms
4 Ohms
8 Ohms in Bridge Mode
8 x 50W (ref. rated THD, 20Hz-20kHz, all channels driven)
8 x 60W
120W
Rated THD (250mW to rated power, CCIF IMD, DIM 100) ≤0.03% (ref. 20Hz-20kHz)
Clipping Power ≥155W (ref. 1kHz, 8 ohms, 0.1% THD)
Damping Factor >150 (ref. 8 ohms, 50Hz and 1kHz)
Input Sensitivity 1.1V (ref. rated power)
Voltage Gain 33dB
Frequency Response 20Hz-20kHz ±1dB
Signal/Noise Ratio, A-Weighted >80dB (ref. 1W/8 ohms)
>100dB (ref. 50W)
Trigger 5-30V In (AC/DC)
-52dBV, 12V Out
Time to Automatic Standby (without signal) <30 minutes
GENERAL
Rated Power 600W (120V 60Hz, 230V 50Hz)
Idle Power <26W
Standby power <0.5W
Unit Dimension (WxHxD) - Gross **
(includes knobs, terminals and mounting brackets) 483 x 89 x 323mm
19 x 3 1/2 x 12 3/4”
Net weight 5.72kg (12.6lb)
Shipping weight 7.1kg (15.65lb)

6
WIRE DIAGRAM

7
BLOCK DIAGRAM
GLOBAL
INPUT
LINE
INPUT
CHANNAL
AMPLIFER
1
2
3
GATA
DRIVER
MAIN FILTER
AC INNET
LOW LOSS STANDBY PSU EMI FILTER
Power Factor Correction
400V DC
High dynamic
Isolated DC convertor
AMPLIFER
PSU
FOLLWER
FOLLWER

Connect ACfromCI980
ISRedLED LIGHTED?
PRESSSTB TOUCH KEY MAKETHE
UNIT WORK NORMALLY?
ISPLAY NORMAL?
ISPREOUT NOLMAL?
OK
ISLED WHITE?
CHECK TRIGGEROFF?
CHECK TRIGGERAUOT ?
CHECK TRIGGERON?
CHECK CONNECTER
YES
CHECK STB +5V
CHECK TRIGGERCIRCUIT
CHECK SIGNAL DETECTIONCIRCUIT
YES
YES
YES
YES
NO
NO
NO
NO
NO
CHECK POWERFUS? CHECK ALL POWER
YES
YES
YES
YES
YES
IS12V TRIGGERNORNAL?
NO
SUPPLIESOK?
CHECK ALL POWER
SUPPLIESOK?
TROUBLESHOOTING GUIDE
10

1.MAIN AMP BOARD
11
R905
620
+5VA
C909
10uF/10V
VAA
7
COMP2
2
VSS
6
IN+2
4
GND
5
IN-2
3
CLIP
1
IN+1
8
IN-1
9
COMP1
10
CSD
11
FAULT
12
NC
13
VCC
14
COM
15
CSH1
16
VB1
17
VS1
18
VP1
19
VS1 20
VN1 21
VN2 22
VS2 23
VP2 24 VS2 25
VB2 26
CSH2 27
COM 28
NC 29 NC 30
IC901
IR4302
-5VS
C910
10uF/10V
C905
2.2nF/50V
C903
2.2nF/50V
C906
2.2nF/50V
C904
2.2nF/50V
R903
2.7K/1%
R906
620
R904
2.7K/1%
C907
1nF/50V
C908
1nF/50V
R907
10
R908
10
1 2
3 4
5 6
78
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
CJ101A
JS1107-36
+32V
-32V
CSD
FAULT
FAULT1
C901
10uF
L IN
C902
10uF
R IN
+5VA
-5VS
VCC
D902
1N4148
D905
1N4148
D906
1N4148
R910
100
R920
33K
C911
10uF/16V
CSD1
C916
100nF/100V
R918
4.7R
R922
4.7R
C922
10uF/16V
-32V
1
2
3
4
SP901
OQ045401000AG/90D-5.08-4P
+32V
-32V
-32V
+32V
C920
100nF/250V
C918
100nF/100V
R924
1R
C919
100nF/250V
C917
100nF/100V
R923
1R
D903
1N4148
D904
1N4148
R919
33K
C915
100nF/100V
R917
4.7R
-32VC921
4.7uF/25V
L901
22uH@10A
C926
470nF/250V
L902
22uH@10A
C925
470nF/250V
C928
100nF/63V
C927
100nF/63V
R925
10/1W
R926
10/1W
R927
2.2K/1W
R928
2.2K/1W
VCC
C914
150pF/500V
R914
47.5K/1% R916
1K/1%
C913
150pF/500V
R913
47.5K/1% R915
1K/1%
R901
3.3K/1%
R902
3.3K/1%
C933
100nF/100V
C935
220uF/50V
C934
100nF/100V
C936
220uF/50V
R929
4.75K/1W
R930
4.75K/1W
R OUT
L OUT
R IN
L IN
R931
22R
C938
100nF/50V
D907
1N4148
D915
MURS120
D918
MURS120
D917
MURS120
D916
MURS120
+32V
+32V
-32V
-32V
C931
10nF/200V
C932
10nF/200V
C939
100nF/50V
R934
47KR936
1K
R937
10K
R938
10K
R939
33K
C941
100uF/25V
Q901
MMBT5551
Q902
MMBT5401
+5VA
Q904
MMBT5401
R942
47K
R944
47K
R941
47K
L OUT Q903
MMBT5551
R945
47K
-32V
CSD1
R943
10K
R935
47K
R OUT
CSD1
D919
1N4148
R946
100K+5VA
CSD
R932
22R
43
87
5 6
1 2
L903
INDUCTOR COMMON-B
C951
2.2nF/100V
C953
2.2nF/100V
C952
2.2nF/100VC954
2.2nF/100V
C955
2.2nF/100V
C961
NC
C956
2.2nF/100V
C962
NC
C943
4.7uF/25V
C957
NC
C959
2.2nF/100V
C960
2.2nF/100V
C958
NC
C972
47pF/100V
C971
47pF/100V
R952
18R
R951
18R
C945
100nF/50V
CIRCUIT DIAGRAMS

+32V
-32V
+12V
-12V
RA1
18/1W
RA2
18/1W
G1
O3 I
2
ICA2
KA7905
CA24
100nF
CA25
100nF
+5VA
-5VS
CA20
10uF
CA21
10uF
CA22
10uF
CA23
10uF
11
22
33
44
55
CJ101A
VH 3.96A-5A
CA11
100nF/100V
O3 I
1
G
2
ICA1
KA7805
CA2
4700uF/50V
CA4
4700uF/50V
CA5
100uF/50V
VCC
-32V
1
2
3
4
CJ104A
XHB2.5A-4A
+12V
-12V
CA16
100nF
CA14
100uF/25V CA17
100nF
CA15
100uF/25V
CA8
100nF/100V
CA12
100nF/100V
CA10
100nF/100V
CA6
100uF/50V
VCC
-32V
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
CJ301B
18PINX2.54
+32V
-32V
CSD
FAU3
+5VA
-5VS
VCC
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
CJ501B
18PINX2.54
+32V
-32V
CSD
FAU5
+5VA
-5VS
VCC
CH5L IN
CH5RIN
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
CJ601B
18PINX2.54
+32V
-32V
CSD
FAU6
+5VA
-5VS
VCC
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
CJ401B
18PINX2.54
+32V
-32V
CSD
FAU4
+5VA
-5VS
VCC
1
2
3
4
5
6
7
8
CJ106A
XHB 2.5A-8A
+12V
-12V
ALRIN
ALL IN
+12V
-12V
MUTE
CH5L IN
CH5RIN CH6L IN
CH6RIN
CH6L IN
CH6RIN
CH4L IN
CH4RIN
CH4L IN
CH4RIN
CH3L IN
CH3RIN
CH3L IN
CH3RIN
ALL IN
ALRIN
MUTE
RA12
22 CA27
100nF
RIN
L IN
RIN
LIN
1
2
3
CJ107A
XHB2.5A-3A
LA13
1K 100M
LA14
1K 100M
LA15
1K 100M
LA16
1K 100M
LA12
1K 100M
LA11
1K 100M
RA13
22 CA28
100nF

2.PRE AMP BOARD(1/4)

R413
1K
R415
100K
3
21
84
IC401A
MC4558D
C409
100nF
+12V
-12V
C411
100nF
1
2
3
VR401A
50KB
4
5
6
VR401B
50KB
R414
1K
R416
100K
3
21
8
4
IC402A
MC4558D
C410
100nF
+12V
ALL IN
ALRIN
5
67
IC403B
MC4558D
3
21
8
4
IC403A
MC4558D
R421
10K R427 18K
R419
10K
C415 33pF
C413
10uF
R422
10K R428 18K
R420
10K
C416 33pF
C414
10uF
R418
220
R417
220
R425
220
R426
220
5
6
7
IC404B
MC4558D
3
2
1
84
IC404A
MC4558D
CH4L IN
CH4RIN
R429
100K
R430
10K
R431
10K
C417
100nF
+12V
-12V
C418 100nF
C419 100nF
+12V
-12V
C420
100nF R432
10K
1
2
3
4
5
6 7
CN401A
XHB 2.5A-7A
1
2
3
4 5
6
CN402A
Comment: XHB 2.5A-6A
-12V
C412
100nF
R613
1K
R615
100K
3
21
8
4
IC601A
MC4558D
C609
100nF
+12V
-12V
C611
100nF
1
2
3
VR601A
50KB
4
5
6
VR601B
50KB
R614
1K
R616
100K
3
21
8
4
IC602A
MC4558D
C610
100nF
+12V
-12V
C612
100nF
ALL IN
ALRIN
5
67
IC603B
MC4558D
3
21
8
4
IC603A
MC4558D
R621
10K R627 18K
R619
10K
C615 33pF
C613
10uF
R622
10K R628 18K
R620
10K
C616 33pF
C614
10uF
R618
220
R617
220
R625
220
R626
220
5
67
IC604B
MC4558D
3
2
1
84
IC604A
MC4558D
CH6L IN
CH6RIN
R629
100K
R630
10K
R631
10K
C617
100nF
+12V
-12V
C618 100nF
C619 100nF
+12V
-12V
C620
100nF R632
10K
1
2
3 4
5
6 7
CN601A
XHB 2.5A-7A
1
2
3 4 5
6
CN602A
XHB 2.5A-6A
R513
1K
R515
100K
3
21
8
4
IC501A
MC4558D
C509
100nF
+12V
-12V
C511
100nF
1
2
3
VR501A
50KB
4
5
6
VR501B
50KB
R514
1K
R516
100K
3
21
8
4
IC502A
MC4558D
C510
100nF
+12V
-12V
C512
100nF
ALL IN
ALRIN
5
67
IC503B
MC4558D
3
21
84
IC503A
MC4558D
R521
10K R527 18K
R519
10K
C515 33pF
C513
10uF
R522
10K R528 18K
R520
10K
C516 33pF
C514
10uF
R518
220
R517
220
R525
220
R526
220
5
67
IC504B
MC4558D
3
2
1
84
IC504A
MC4558D
CH5L IN
CH5RIN
R529
100K
R530
10K
R531
10K
C517
100nF
+12V
-12V
C518 100nF
C519 100nF
+12V
-12V
C520
100nF R532
10K
1 2
3 4 5
6
7
CN501A
XHB 2.5A-7A
1 2
3 4
5 6
CN502A
XHB 2.5A-6A
C407
470pF
C408
470pF
C507
470pF
C508
470pF
C607
470pF
C608
470pF
R313
1K
R315
100K
3
21
84
IC301A
MC4558D
C309
100nF
+12V
-12V
C311
100nF
1
2
3
VR301A
50KB
4
5
6
VR301B
50KB
R314
1K
R316
100K
3
21
8
4
IC302A
MC4558D
C310
100nF
+12V
-12V
C312
100nF
ALL IN
ALRIN
5
67
IC303B
MC4558D
3
21
8
4
IC303A
MC4558D
R321
10K R327 18K
R319
10K
C315 33pF
C313
10uF
R322
10K R328 18K
R320
10K
C316 33pF
C314
10uF
R318
220
R317
220
R325
220
R326
220
5
67
IC304B
MC4558D
3
2
1
84
IC304A
MC4558D
CH3RIN
R329
100K
R330
10K
R331
10K
C317
100nF
+12V
-12V
C318 100nF
C319 100nF
+12V
-12V
C320
100nF R332
10K
1
2
3
4
5 6
7
CN301A
XHB 2.5A-7A
1
2 3
4 5
6
CN302A
XHB 2.5A-6A
C308
470pF
C307
470pF
R301
100K
R303
3.3K
R305
33K
R309 10K
R307
10K
R311
220
5
67
IC301B
MC4558D
2
1
RCA301A
3
1
RCA301B
5
4
RCA301C
6
4
RCA301D
C301
10uF
C303
470pF
C305 33pF
R302
100K
R304
3.3K
R306
33K
R310 10K
R308
10K
R312
220
5
67
IC302B
MC4558D
C302
10uF
C304
470pF
C306 33pF
L IN
L OUT
RIN
ROUT
L301
R302
Q302
2SC1815
R336
10K
Q301
2SC1815
R335
10K
MUTE
R401
100K
R403
3.3K
R405
33K
R409 10K
R407
10K
R411
220
5
67
IC401B
MC4558D
2
1
RCA401A
3
1
RCA401B
5
4
RCA401C
6
4
RCA401D
C401
10uF
C403
470pF
C405 33pF
R402
100K
R404
3.3K
R406
33K
R410 10K
R408
10K
R412
220
5
67
IC402B
MC4558D
C402
10uF
C404
470pF
C406 33pF
L IN
L OUT
RIN
ROUT
L401
R402
Q402
2SC1815
R436
10K
Q401
2SC1815
R435
10K
R501
100K
R503
3.3K
R505
33K
R509 10K
R507
10K
R511
220
5
67
IC501B
MC4558D
2
1
RCA501A
3
1
RCA501B
5
4
RCA501C
6
4
RCA501D
C501
10uF
C503
470pF
C505 33pF
R502
100K
R504
3.3K
R506
33K
R510 10K
R508
10K
R512
220
5
67
IC502B
MC4558D
C502
10uF
C504
470pF
C506 33pF
L IN
L OUT
RIN
ROUT
L501
R502
Q502
2SC1815
R536
10K
Q501
2SC1815
R535
10K
R601
100K
R603
3.3K
R605
33K
R609 10K
R607
10K
R611
220
5
67
IC601B
MC4558D
2
1
RCA601A
3
1
RCA601B
5
4
RCA601C
6
4
RCA601D
C601
10uF
C603
470pF
C605 33pF
R602
100K
R604
3.3K
R606
33K
R610 10K
R608
10K
R612
220
5
67
IC602B
MC4558D
C602
10uF
C604
470pF
C606 33pF
L IN
L OUT
RIN
ROUT
L601
R602
Q602
2SC1815
R636
10K
Q601
2SC1815
R635
10K
MUTE
D301
1N4148
MUTE
MUTE
D302
1N4148
MUTE
MUTE
D401
1N4148
MUTE
MUTE
D402
1N4148
MUTE
MUTE
D501
1N4148
MUTE
MUTE
D502
1N4148
MUTE
MUTE
D601
1N4148
MUTE
MUTE
D602
1N4148
C321
220pF
C322
220pF
C421
220pF
C422
220pF
C521
220pF
C522
220pF
C621
220pF
C622
220pF
7
2.PRE AMP BOARD(2/4)

14
ZB3
39V
RB32
47K
QB11
MMBT5551
RB31
10K
PROTV
+32V
RB11
10K 1
2
3
4
CJ102A
XHB2.5A-4A
CB4
10uF
RB9
10K
+5VD
QB4
2SC1815
RB35
10K
+5VD LB1
1K 100M
CB5
100nF
STB
MUTE
QB5
2SC1815
RB13
10K
RB14
10K
CSD
RB42
1.5K
+32V
RB43
1.5K
QB9
2SC1815
QB8
2SA1015
RB36
10K
RB37
10K
+5VD
RB41
100K
-5VS
RB39
1M
RB38
10K
+5VD
RB15
10K
+5VA
GJJ
RB33
10K QB7
2SC1815
QB6
2SA1015
RB16
10K
RB18
5.1K
+5VD
RB19
22K
CB7
1uF
RB21
Comment:470
-32V
RB12
47K
RB44
1.5K
CB3
1uF
RB8
10/1W
RB6
6.8K
QB1
KSC2690AYS
RB4
3.01K
QB3
2SC1815
RB3
22
RB2
3.3K
ZB1
5.1V
CB1
10uF
RB1
47K
RB5
220/2W
CB2
1uF
1
2
JK1A
SCJ351P00XS0B00
4
5
6
JK1B
SCJ351P00XS0B00
TRIG IN
MUTE
+5VD
CSD
AUTO
ON
Trigger
RB26
10K
RB27
1M
TRIG1
+5VD
TRIG2
1
23
SW101
TS-14P-A1-2-Q-H
TRIG IN
TRIG IN
FAU4
FAU5
FAU6
FAU3
CRB101
11.0592Mhz
CB106
47pF CB107
47pF
+5VD
CB103
10uF
LB101
1K 100M
RB108 10K
RB107 10K
RB104 100
RB141 100
RB109 10K
RB106 10K
RB103 100
RB101 100
RB102 100
+5VD
RB142 10K
RB143 100
RB144 100
RB145 100
RB125 10K
RB126 NC
RB124 10K
RB127 10K
+5VD
RB123 10K
RB177 100
RB161 NC
RB162 NC
RB160 NC
+5VD
RB163 NC
RB169 100
RB168 100
RB167 100
RB166 100
RB165 100
RB164 100
RB175 100
CB104
100nF
MOSI/ADC5/P1.5
1
MSIO/ADC6/P1.6
2
SCLK/ADC7/P1.7
3
P4.7/RST
4
INT/RxD/P3.0
5
SCLK/TxD2/CCPI/P4.3
6
TxD/P3.1
7
INT0/P3.2
8
INT1/P3.3
9
CLKOUT0/INT/T0/P3.4
10
CLKOUT0/INT/T1/P3.5
11
P3.6/WR 12
P3.7/RD 13
XTAL2 14
XTAL1 15
GND 16
P4.0/SS 17
P2.0/A8 18
P2.1/A9 19
P2.2/A10 20
P2.3/A11 21
P2.4/A12 22
P2.5/A13 23 P2.6/A14 24 P2.7/A15 25
NA/P4.4 26
ALE/P4.5 27
P4.1/ECI/MOSI 28
EX_LVD/P4.6/RST2 29
P0.7 30 P0.6 31
P0.5 32 P0.4 33
P0.3
34
P0.2
35
P0.1
36
P0.0
37
Vcc
38
MISO/RxD2/CCP0/P4.2
39
CLKOUT2/ADC0/P1.0
40
ADC1/P1.1
41
RxD2/ECI/ADC2/P1.2
42
TxD2/CCP0/ADC3/P1.3
43
SS/CCP1/ADC4/P1.4
44
UB101
STC12C5A16S2-35I-LQFP44
1
2
3
4
CJ108A
XHB2.0A-4A
TXD
RXD
+5VD
+32V
RB22
100K
+5VD
RB178 100
RB23
10K
RB179 100
RCK
SCK
SI
MUTE1
SJC9
PROTV
MUTE1
TRIG1
TRIG2
STB1
STB1
GJJ
CSD2
CSD2
TR I G 1 TR I G 2
SJC4 SJC5 SJC6
1
2
3
4
5
6
7
8
9
CJ105A
XHB2.5A-9A
+5VD
SI
RCK
SCK
LED9B
LED9R
SWIT
RB146 100
RB147 100
LED9B
LED9R
SWIT
SJC3
RB122 10K
RB121 10K
ZB2
13V
RB25
1K +5VD
1 1
0 1
0 0
TR I G ER
DB1
1N4148
RB174 1K
RB10
1K
CB6
22uF
LEDK
RB148 100
RB149
10K +5VD LEDK
RTJC
FSK
DB3
1N4148
R947
3.16K
CB11
10uF
ZB4
6.2V
ST B
RB46
200
QB2
2SC1815
QB14
2SC1815
RB51
10K STB
DB6
B0520LW
DB5
B0520LW
RB52
56K
+32V
RB53
4.7K
2.PRE AMP BOARD(3/4)

15
+
-
3
21
US321A
MCP6002T-E/SN
RS327
10K
ZS322
3.6V
ZS321
3.6V
DS322
1N4148
DS321
1N4148
CS326
470nF
CS323
22pF
CS325
100nF QS321
2SC1815
DS323
1N4148
+5VD
RS324
10K
RS328
100K
+
-
5
67
US321B
TL082
+2.5V
RS325 4.7M
SJC3
RS301
100K
RS303
10K 5
67
US301B
MCP6002T-E/SN
RS302
100K
RS304
10K 3
21
8
4
US301A
MCP6002T-E/SN
L301
R302
+5VD
+2.5V
+2.5V
CS301
1uF/25V
CS302
1uF/25V
CS307
1uF
RS309
10K S301
RS310
10K
CS309
1uF
S301 RS9
22K
RS10
22K
+2.5V
CS8
100nF
CS10
1uF
RS12
10K
SJC3
RS427
10K
ZS422
3.6V
ZS421
3.6V
DS422
1N4148
DS421
1N4148
CS426
470nF
CS423
22pF
CS425
100nF QS421
2SC1815
DS423
1N4148
+5VD
RS426
22
CS424
10uF
RS424
10K
RS428
100K
SJC4
S401
SJC4
+2.5V
RS425 4.7M
+
-
3
21
US521A
MCP6002T-E/SN RS527
10K
ZS522
3.6V
ZS521
3.6V
DS522
1N4148
DS521
1N4148
CS526
470nF
CS523
22pF
CS525
100nF QS521
2SC1815
DS523
1N4148
+5VD
RS524
10K
RS528
100K
+
-
5
67
US521B
MCP6002T-E/SN
+2.5V
RS525 4.7M
SJC5
S501
SJC5
RS627
10K
ZS622
3.6V
ZS621
3.6V
DS622
1N4148
DS621
1N4148
CS626
470nF
CS623
22pF
CS625
100nF QS621
2SC1815
DS623
1N4148
+5VD
RS626
22
CS624
10uF
RS624
10K
RS628
100K
+2.5V
RS625 4.7M
SJC6
S601
SJC6
+
-
3
21
US921A
MCP6002T-E/SN
RS927
10K
ZS922
3.6V
ZS921
3.6V
DS922
1N4148
DS921
1N4148
CS926
470nF
CS923
22pF
CS925
100nF QS921
2SC1815
DS923
1N4148
+5VD
RS926
22
CS924
10uF
RS924
10K
RS928
100K
+
-
5
67
US921B
MCP6002T-E/SN
+2.5V
RS925 4.7M
SJC9
S901
SJC9
CS9
100uF/25V
RS305
100K
DS301 1N4148
DS302 1N4148
RS306
100K
DS303 1N4148
DS304 1N4148
RS401
100K
RS403
10K 5
67
US401B
MCP6002T-E/SN
RS402
100K
RS404
10K 3
21
84
US401A
MCP6002T-E/SN
L401
R402
+5VD
+2.5V
+2.5V
CS401
1uF/25V
CS402
1uF/25V
CS407
1uF
RS409
10K S401
RS410
10K
CS409
1uF
RS405
100K
DS401 1N4148
DS402 1N4148
RS406
100K
DS403 1N4148
DS404 1N4148
RS501
100K
RS503
10K 5
67
US501B
MCP6002T-E/SN
RS502
100K
RS504
10K 3
21
84
US501A
TL082
L501
R502
+5VD
+2.5V
+2.5V
CS501
1uF/25V
CS502
1uF/25V
CS507
2.2uF
RS509
10K S501
RS510
10K
CS509
2.2uF
RS505
100K
DS501 1N4148
DS502 1N4148
RS506
100K
DS503 1N4148
DS504 1N4148
RS601
100K
RS603
10K 5
67
US601B
MCP6002T-E/SN
RS602
100K
RS604
10K 3
21
8
4
US601A
MCP6002T-E/SN
L601
R602
+5VD
+2.5V
+2.5V
CS601
1uF/25V
CS602
1uF/25V
CS607
1uF
RS609
10K S601
RS610
10K
CS609
1uF
RS605
100K
DS601 1N4148
DS602 1N4148
RS606
100K
DS603 1N4148
DS604 1N4148
RS901
100K
RS903
10K 5
67
US901B
MCP6002T-E/SN
RS902
100K
RS904
10K 3
21
8
4
US901A
MCP6002T-E/SN
L IN
RIN
+5VD
+2.5V
+2.5V
CS901
1uF/25V
CS902
1uF/25V
CS907
1uF
RS909
10K S901
RS910
10K
CS909
1uF
RS905
100K
DS901 1N4148
DS902 1N4148
RS906
100K
DS903 1N4148
DS904 1N4148
S601
S601
+5VD
2.PRE AMP BOARD(4/4)

16
3.GLOBAL IN BOARD
R1
100K
R3
3.3K
R5
33K
R9 10K
R7
10K
R11
220
R13
1K R15
100K
3
2
1
84
IC1A
MC4558D
5
6
7
IC1B
MC4558D
C1
10uF
C3
470pF
C5 33pF
C7 100nF +12V
-12V
C9 100nF
1
2
3
VR1A
R1121GOXH1G503YJ0000
4
5
6
VR1B
50KB
GLOBAL IN
R2
100K
R4
3.3K
R6
33K
R10 10K
R8
10K
R12
220 R14
1K
R16
100K
3
2
1
84
IC2A
MC4558D
5
67
IC2B
MC4558D
C2
10uF
C4
470pF
C6 33pF
C8 100nF +12V
-12V
C10 100nF
GLOBAL IN
GLOBAL OUT
GLOBAL OUT
ALROUT
ALL OUT
C11
470pF
C12
470pF
4
3
RCA1A
BNCAV2-8.4-14
2
1
RCA1B
BNCAV2-8.4-14
4
3
RCA2A
BNCAV2-8.4-14
2
1
RCA2B
BNCAV2-8.4-14
1
2
3
4
5
6
7
8
CJ106B
XHB2.5A-8A
+12V
-12V
ALL OUT
ALROUT
Q1
2SC1815
R19
10K
R21
NC
Q2
2SC1815
R20
10K
R22
NC
+12V
-12V
MUTE
ALL OUT
ALROUT
L IN
RIN
RIN
L IN
MUTE
MUTE
D1
1N4148
MUTE
MUTE
D2
1N4148
MUTE
R17
47
R18
47
C13
220pF
C14
220pF
L1
Comment: 2.7uH
L2
Comment: 2.7uH

17
4.LED BOARD
+5VD
TO-PO W ER LED
3
1
2
LED4
SWIT
LED9R
3 1
2
LED3
LED9B
3 1
2
LED2
3
1
2
LED1
CT1
1uF
RT2
3.3K
RT4
10K
RT1
10K
+5VD
RT3
510
CH 2 CH 4 CH 6 CH 8
1
2
3
4
5
CJ109B
XHB 2.5A-5A
QB
1
QC
2
QD
3
QE
4
QF
5
QG
6
QH
7
GND
8
QA
15 VCC 16
GH 9
SI 14
G13
RCK 12
SCK 11
SCLR 10
UT1
74HC595
+5VD
LED1G
LED1R
LED2G
LED2R
LED3G
LED3R
LED4G
LED4R
RT22 100
LED4R
RT23 100
LED4G
RT21 100
QT8
2SA1015
QT1
2SA1015 QT7 2SA1015
QT2
2SA1015
RT15
510
RT13
10K RT16
10K
RT14
3.3K
LED1G
LED1R
LED3R
LED3G
RT6
3.3K
RT8
10K
RT5
10K
RT7
510
QT6
2SA1015
QT3
2SA1015 QT5 2SA1015
QT4
2SA1015
RT11
510
RT9
10K RT12
10K
RT10
3.3K
LED2G
LED2R
1
2
3
4
5
6
7
8
9
CJ105B
Comment:XHB2.5A-9A
+5VD
SI
RCK
SCK
LED9B
LED9R
SWIT
RT24
10K
+5VD
QT9
2SC1815
QT9B
LEDK
QT9B
CT2
2.2uF
RT25
1K
1
2
JF1
XHB2.5A-2A
1
2
JF2
XHB2.5A-2A
FS1
RT31
10K
QT13
TIP31CG
+11VF
1
2
3
4
JS101A
XHB2.5A-4A
CT31
10uF/25V
RT32
22K
RT38
100K
RT33
22K
RT34
10K RT35
16K
RT37
220
CT34
10nF
CT32
2.2uF/25V
5
67
UT31B
TL082 3
21
84
UT31A
TL082
CT33
1uF
t
NTC1
10K
TP1
TP2 TP3 DT31
1N4148 DT32 1N4148
DT33
BAS321 CT35
220uF/25V
+12VF
+12VF
+11VF
ZT31
NC
+12VF
TP4
FS1
+12VF

18
5.POWER LED BOARD
5
6 41
2 3
S101
SW -A C
1 2 3
4 5
6 7
CN101B
XHB 2.5A-6A
5
6
41
2
3
S102
SW -A C
1
2
3 4
5
6
CN102B
XHB 2.5A-5A
CN101B-CN801B CN102B-CN802B
RT92
1K
RT94
10K
RT91
10K
RT93
510
QT91
2SA1015 QT92
2SA1015
L ED 9B
L ED 9R
1
2
3
4
5
CJ109A
XHB 2.5A-4A
+5VD
+5VD
LED9B
LED9R
JK901
IT-1102-1260
SWIT
2 3
4 1
LED9
6.SWITCH BOARD

19
7.PSU BOARD
NTC901
SCK255R0MSBY
C927
1nF
R959
2.7K
R921
100K
R906
47K
C921
220nF/25V
R976
0R22 R977 0R22
GNDP
R946
1.2K
R908
5.1K
Q913
FDP18N50
Q912
FDP18N50
Q906
BC807-25
R929
10R
G N D P
C919
1.2nF/200V
R952
12R/1206
C920
1.2nF/200V
R953
12R/1206
SGND
2
1
3
4
BR901
25A/1000V
C910
1UF
C916
150P/200V
R978
22R
AC120V/230v±10%
C911
150P/200V
R951
22R
MAI N I N
ZV901
14D471K
CX902
470nF/275VAC
R909
10K
C945
10nF/1000V
CX901
1uF/275VAC
R999
1M
R998
1M
R997
1M
1
2
4
3
L910
1.9mH
12
4 3
L909
1.9mH
C902
200V/680UF
C903
200V/680UF
R918
100K
R919
100K
R920
100K
R917
100K
GNDP
L901
22uH/6A
C917
470nF/275VAC
C918
470nF/275VAC
Q 923
BC846BW
D907
BAS316
Q918
BC846BW
Q921
BC846BW
OC
C908
10nF/1KV C909 10nF/1KV
D909
BAS316
D910
BAS316
D911
BAS316
Q927
BC856BW
Q926
BC856BW R963
10K
R922
100K
R973
4K7
R964
47K
R915
1M
R914
1M
R926
100K
R923
100K
R924
100K
R913
220K
R925
100K R962 47K
Q922
BC846BW
Q919
BC846BW
Q920
BC846BW
GNDP
GNDP
1IN+
1
1IN-
2
2IN-
15 2IN+
16
FB
3
DTC
4
CT
5
RT
6
GND
7
C1 8
E1 9
E2 10
C2 11
VCC 12
OPCTL 13
REF 14
U904
TL494
Q928
BC856BW
R967
47K
R907
10K
R960
2.2K
R974
1.2K
R966
47K
R944
1K
R965
47K
C924
1n/50V
C926
470P
C925
2.2uF/25V
R975
18K
GNDP
GNDP
R928
10R
R943
1K
C907
1u/25V
GNDP
R935
10R
Q903
BC807-16
Q902
BC807-16
Q904
BC817
D901
BAT54J
D902
BAT54J
D904
BAT54J
R936
1K
GNDP GNDP
Q905
BC817
D903
BAT54J
R937
1K
C904
1U/25V
GNDP
R938
1K
CY901
1nF
R989 100R
R991
2K
C953
104
R990
10k
2 3
1
U911
TL431
D918
UF4006
D919
Comment:BAS316
R988
1k
R985
22k
C949
10uF/50V
R969
2K
C956
104
C952
104
C951
1nF/200V
C954
1000uF/10V
C955
1000uF/10V
L904 3.3uH +5VS
+5VR
R987 82R
HV
2
1
3
4
BD901
0.8A600V
C947
104
BP 2
S
5
S
6
D4
UV 1
S
7
S
8
U908
TNY284
R983
2M
R984
2M
C946
47uF/400V +5VR
R904
10K
R903
10K
R901
390K
R912
1M
R902
390K
C922
22uF/25V
D905
BAT54J
D906
BAT54J
23
1
IC901
TL431
VCC
1
2
3
4 8
U901A
LM393
GNDP
5
67
U901B
LM393
R905
10K
K901
HF115F-I
R995
100R
R996
100R
VCC
D922
M7A
GNDP
Q901
BT139X-600F
R911
150R
R910
150R
C901
10nF500V
R916
1K
GNDP
VCC
VCC
VCC
12
T901B
TR
C906
1u/25V
C923
104
C905
1u/25V
OC
D908
BAS316
R972
10K
C961
100nF STB
C963
100uF/35V
C960
100nF
R971
47K R993
4.7K R994
1K
VCC1
IN 1
2
OUT
3
GND
U906 L7812
VCC
C962
100uF/25V
C959
100nF
GNDP
C950
100UF/35V
D920
MURS120
VCC1
GNDP
T902
BAW56W
Q911
BC807-25
R930
10R
R945
1K
T903
BAW56W
Q914
AOT412
Q907
BC807-25
R931
10R
R939
1K
T904
BAW56W
Q916
AOT412
Q909
BC807-25
R933
10R
R941
1K
T906
BAW56W
Q915
AOT412
Q908
BC807-25
R932
10R
R940
1K
T905
BAW56W Q917
AOT412
Q910
BC807-25
R934
10R
R942
1K
T907
BAW56W
C913
150P/200V
R957
22R
C912
150P/200V
C915
150P/200V
R958
22R
C914
150P/200V
D921
1N5822
V+
V-
1
2
3
J903
CON3-3.96
+5VS
U902
MOC3043
U910 PC817
U909 PC817
6 7
T901C
TR
4 5
T901A
TR
14 13
T901D
TR
9
10
T901E
TR
11 12
T901G
TR
10 8
T901F
TR
4
3
5
6 2
1
8
9
7
10
T909
EE16
F901
FUSE1
R981
10R
Q930
2SB647-D
C976
1uF/25V
D912
P6KE200
+5VS
C948
100pF/1kV
G N D P
GNDP CY902
2.2nF
C936
220UF/35V
D914
MURA220T3
R980
1R/1206
R979
1R/1206
C933
1nF/200V
R954
12R/1206
C938
330UF/25V
SGND
C942
104 IN 2
1
OUT 3
GND
U907 MC7912
IN
1
2
OUT 3
GND
U905 L7812 +12VD C940
220UF/35V
D916
MURA220T3
C935
1nF/200V
R956
12R/1206
C941
330UF/25V
SGND
C944
104
-12VD
D915
MURA220T3
R949
1R/1206 C934
1nF/200V R950
12R/1206
C965
63V/470UF C970
100nF/200V
C968
63V/470UF
C966
63V/470UF
L906
65R7A L907 65R7A
C964
63V/470UF C971
100nF/200V C969 63V/470UF
C967
63V/470UF
L905
65R7A L908 65R7A
SGND
SGND
VOUT-
VOUT+
V+
V-
SGN D
+12VD
+5VS
SGN D
ST B VO U T -
VO U T +
SGN D
1
2
3
4
5
J904
CON5
1
2
3
4
J905
CON4
SGN D
VDR
-12VD
R986
10K
R982
47K
C977
200V/680UF
C978
200V/680UF
CSD
SGND
90
TH901
U903
PC817 Q931
BC846BW
GNDP1
GNDS
+5VS
CSD
2
1
3
4
BD902
0.8A600V
C929
100nF
GNDP
GNDP
C930
100nF
C931
100nF
GNDP
C932
100nF
1
2
3 16
14
15
8
10
12
11
9
13
18
17
T908
EC42
VOUT-
VOUT+
SGND
1
2
3
4
5
J902
CON5
SGND
VDR
1
2
3
4
J901
CON4
GN D S
R970
0R22
C979
100nF
C958
100nF
SGN D
SGN D 1
2
3
J906
CON2
D923
18V, 3W
SGND
R992
47k
R927
100KΩ,2W
D924
M7A D925
12V0.5W
C957
10uF/50V
CY903
1nF
CY904
1nF
FG
C973
220UF/35V
D913
MURA220T3
R961
1R/1206 C972
1nF/200V R968
12R/1206
C974
330UF/25V
C975
104
R900
1M
TH902
103AT 1
2
3
4
J907
CON4
IN
1
2
OUT 3
GND
U913 L7812 +12V
+12V
SGND1
SGND1
SGND1
SGN D
C937
220UF/35V C939
230UF/25V
C943
104
VOUT-
VDR
R947
47K
R93
1k
C928
10nF
Vi
1Vo 2
g
3
Vd
4
U912 KA78R12
T910
BAW56W
Q924
BC856BW
R91
47k C980
220nF
Q925
BC856BW
R94
47k
C981
100nF
R92
1M
D926
BAS316
C982
1uF
R95
1M
C983
100nF
D 917
5.6V
R96
47k
Q932
BC846BW
R948
22k
R955
1R
GNDs
C984
0R
R97
0R
EARTH1
C985
0R
R98
0R
EARTH2
C986
0R
R99
0R
EARTH3
C987
104
SGND1 SGND
0 1
S903
GNDP SGNDSGND
0
1
S901
0
1
S902


1.MAIN AMP BOARD
PCB LAYOUT
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
2.PRE AMP BOARD
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Bottom Layout


3.GLOBAL IN BOARD
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