Phonic MAR1 User manual

23
Service Manual
MAR1
Power Amplifier

1
SAFETY FIRST!
WARNING - TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS
APPLIANCE TO RAIN OR MOISTURE.
WATER AND ELECTRICITY DO NOT MIX. Keep this unit away from water. If water or other liquids
are spilled on or into this unit, unplug the power cord immediately from the wall socket (with DRY
HANDS) and get a qualified service technician to check it out before using. Keep this unit away from
heaters, radiators and other heat producing devices.
DO NOT ATTEMPT TO SERVICE THIS UNIT. ONLY A QUALIFIED SERVICE TECHNICIAN
SHOULD OPEN THIS UNIT FOR SERVICING.
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
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 presence of important operating and
maintenance (servicing) instructions in the literature
accompanying the appliance.
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE
COVER (OR BACK). NO USER-SERVICEABLE PARTS INSIDE. REFER
SERVICING TO QUALIFIED SERVICE PERSONNEL.
KEEP IT CLEAN: Dust, dirt and debris can interfere with the performance of this product.
Make a special effort to keep this unit away from dusty, dirty environments. Cover the
unit when not in use. Dust it regularly with a soft, clean brush. Careful attention to these
details will be time well spent, and this product will reward you with years of trouble free
operation.

2
Introduction
Congratulations on your purchase of the Phonic MAR 1 Reference Amplifier. Like other
Phonic MAR series power amplifiers –MAR 2/4/6, this unit is designed to provide a good
combination of power, audio clarity, reliability and durability. Especially, optimized for
studio monitoring applications and moderate-power live performance setups, the amps
main features include:
l150 watts per channel into 4 ohms, 100 watts per channel into 8 ohms
lFront panel LED Indicators for Protect, Clip & Signal
lDetented dB gain controls
lBuilt-in protection system for short circuit, DC, and temperature monitoring
lPower-up muting
l-26dB signal presence LEDs on each channel
lQuality Neutrik combo Input connectors for professional use
lStereo/Parallel switch
lGround floating switch
lMassive, custom-designed extruded heat sinks ( individual for each channel) for
cool operation
lNo Ventilation fan is needed, allowing for quiet operation and reduced ambient noise
in the studio.
lExtremely low noise and distortion, suitable for quiet applications such as recording
studio, church and museum.
Precautions
1. When first powering-up the amp, keep the amplifier Gain Controls all the way off, in
order to block potentially damaging or annoying sounds caused by defective cables or
hookups. When turning up the Gain, do it gradually, until normal operation is verified.
These precautions are necessary with all high-power amplifiers, since they have
enough power to blow most speakers in abnormal situations.
2. Check the AC Voltage before connecting the AC plug.
3. The amplifier is protected from surges in power-line voltage by the fuses. Should your
unit ever fail to power-up, first unplug the power cord, and then replace the fuse with
exact type and value.
About This Manual
Please be reminded that a power amplifier is a high-current, high-power device
and should be treated with respect and care. Please read this manual before
connecting and operating your unit and file it in a safe place for future reference.

3
MAR 1 Power Amplifier
Front Panel Description
1. Gain Controls
These two knobs are the level controls for
Channel one and two respectively.
Turning clockwise will increase its gain,
and counter clockwise will decrease its
gain. Please always power-up with the
volume all the way down, and increase
volume slowly to make sure that no
conditions exist which could annoy your
audience or harm your speakers.
2. Protect LED Indicator
The MAR1 features several types of
protection to prevent damage to the
circuitry during turn-on or fault conditions.
If the LEDs light up, this indicates that one
of the various protections is safeguarding
the different sections of the amplifier and
in these cases, the power output is
normally switched off until normal
operating conditions are restored.
lLoudspeaker protection: in the event
of malfunction, a sensor located on
the power outputs is able to break the
circuit avoiding that current peaks
reach the speakers and damage
them.
lThermal protection on the heatsink: If
the amp overheats, thermal shutdown
protects the circuitry until the
temperature is reduced to a safe
level.
lShort circuit protection: The Protect
LED Indicator will also light up if the
speaker terminals are short circuited,
or the impedance of the load is too
low. In these circumstances, the
Protect LED will stay on until the fault
condition is rectified.
Some protection situations require the
amplifier to be switched off and then
back on for normal operating
conditions to be restored.
3. Clip LED Indicator
The LEDs light up at clipping status,
whenever any conditions occur that could
leak to non-linearility, such as an out-of-
spec load and waveform distortion.
Because of the MAR 1’s ability to enter
and exit clipping with as few audible
artifacts as possible, you may not hear
any distortion even if the indicator flashes.
In general, a few flashes every now and
then will not be a problem. However, if
the LEDs flash often or remain on for any
extended period of time, then turn down
the volume controls to reduce the signal
level going to the MAR 1. If this doesn’t
5
1
2
3
4

4
solve the problem, check your output
cables and speakers.
4. Signal“Status”LED Indicator
Each channel of the MAR 1 features a
signal LED to show that there is an audio
signal at the input to the channel. The
threshold for the indicator is –26 dB,
which should be enough to avoid noise
triggering the LED.
5. Power Switch
The power ON/Off switch with an LED
indicator.
Always start with Gain Control (1) all
the way down before powering-up to
avoid abnormal sound from defective
cables or hookups.
Back Panel Description
6. Ch1/Ch2 Input (Neutrik
Connector)
Quality Neutrik Connectors are provided
for balanced XLR and 1/4”inputs, which
are commonly, used for both mobile and
installation set-ups. They provide a good
combination of ease of connection and
resistance to corrosion. The XLR inputs
are wired as per the following convention:
These type of jacks feature on much
audio equipment and are convenient if the
amp is frequently connected and
disconnected, such as for mobile set-up.
The plugs used should wired as per
the following convention:
7. Stereo/ Parallel Switch
In Stereo operation, two separate signals
are treated separately by Channels 1 and
2 of the amplifiers.
In Parallel operation, One signal is
treated by both channel 1 and 2 of the
amplifier. In other words, a signal
connected to Input Ch1 or Ch2 (6) is sent
to both Output Ch1 and CH2 (9).
This switch should be used when the
+
-
gnd
tip ring sleeve
+
-gnd
6
7
8
9

5
Amplifier is off; otherwise the
speakers’components could be
damaged.
8. Ground Lift Switch
This switch allows the circuit and chassis
grounds to be separated in case on a
ground conflict. In normal use the switch
should be in the Ground On position.
Lifting the ground (Floating position) may
resolve the ground conflict, but which
means that circuit grounding depends on
other connected components.
Deficiencies in other components’
grounding will affect the sound and a
serious electric fault with the amplifier
could damage other components in the
system.
For the best combination of safety and
performance,it is highly recommended
to keep the switch in the “Ground On”
position,
9. Binding Post Output Ch1/ Ch2
These are suitable for banana plugs,
spade lugs or bare wires. Spade lugs and
bare wires should both be screwed done
tightly to exclude oxygen, and care should
be taken to avoid loose strands of wire
that may cause short circuits.
Speaker Speaker

6
Hook-up #1 Studio Monitor Amp/ Sound Reinforcement
The MAR1 is ideal for driving near-field or other reference speakers. For auditorium and
live music use, the MAR 1 has sufficient power to drive a set of small-to-medium size club
speakers.
outputs
outputs
inputs
speakers
MAR1 amplifier
compressor or equalizer
PEQ3400
mixer
IMPACT16

7
Hook-up #2 Bi-Amp Sound Reinforcement
Biamplification often provides better live sound and greater efficiency by splitting the audio
signal into two different channels. One MAR1 drives a low frequency speaker system and
the other, a high frequency speaker system.
Impact 12
Crossover
High
Frequency
Outputs
Low
Frequency
Output
Ins
High Frequency MAR1
Low Frequency MAR1
Low Frequency Speakers High Frequency Speakers

8
Specifications
Frequency response (1W/ 8 ohms) 20 –20kHz (+1 dB)
Power bandwidth (100W/ 8 ohms) 20 –20kHz (+1 dB)
Total harmonic distortion < 0.3 % (100W/8 ohms, 10Hz –20kHz)
<0.5 % (120W/4 ohms, 10Hz –20kHz)
Signal to noise ratio (IHF-A) > 100 dB
Slew rate 25 V/us
Damping factor
(Rate output: 100W/8ohms @1kHz) > 150
Crosstalk (Rate output: 100W/8ohms @1kHz) >75 dB
Rated Power
(8 ohms, both channel driven) 100W
Max. Output Power
4 ohms, 1kHz, 1% T.H.D. both drive
8 ohms, 1kHz, 1% T.H.D. both drive 150W 120W
Input sensitivity
8 ohms, 1kHz, @ rated power 100W 0.775V
Input impedance 30k ohms (balanced)
15k ohms (unbalanced)
Voltage Gain 31.2 dB
Max. Noise <0.6 mV
Protection circuits lOutput offset voltage protection
lHeat sink overheat protection
lTransformer overheat protection
lLoad shorting protection
lPower on/off protection
AC power requirement 120V/ 60Hz or 230V/50Hz
Dimensions (mm) 480x338x54(WxDxH)
Net Weight 9.5 Kg
E & OE. Due to continual product development, all features and specifications subject to change without notice

9
PC-Board Layout MAR1 Input / Output & Power Supply Board

10
PC-Board Layout MAR1 Power Amplifier Board

11
MAR1 BLOCK DIAGRAM

12
Schematic Diagram 1 MAR1 Power Amplifier Input / Output
(MAR1 Input / Output & Power Supply Board)

13
Schematic Diagram 2 MAR1 Power Amplifier Power Supply
(MAR1 Input / Output & Power Supply Board)

14
Schematic Diagram 3 MAR1 Power Amplifier ch1/2 Power AMP
(MAR1 Power Amplifier Board)

15
Parts List Schematic Diagram 1MAR1 Power Amplifier Input / Output
(MAR1 Input / Output & Power Supply Board)
Ref. PHONIC Part # Description
BD1, BD2 090-10000-000-0 SEMI, DIODE, BRIDGE, PB154
BD1, BD2 *2 322-05000-100-0 TUBE, 5mm*D1
C1, C2, C14, C15 042-22024-020-0 CAP, CERAMIC, TYPE2, 50V, 22pF, 5%
C17, C20 030-47556-0A0-0 CAP, ELEC, 85C, 50V, 4.7μF, 20%
C18, C22 030-22738-001-0 CAP, ELEC, 85C, 25V, 220μF, +80%, -20%
C19, C26 030-10626-0A0-0 CAP, ELEC, 85C, 16V, 10μF, 20%
C25 030-10564-0A0-0 CAP, ELEC, 85C, 63V, 1μF, 5%
C27 030-22538-0A0-0 CAP, ELEC, 85C, 25V, 2.2μF, +80%, -20%
C29, C30 042-22426-000-0 CAP, CERAMIC, TYPE2, 50V, 0.22μF, 20%
C3, C7, C8, C16 030-22628-0A0-0 CAP, ELEC, 85C, 16V, 22μF, +80%, -20%
C4, C5, C11, C12 042-10426-050-0 CAP, CERAMIC, TYPE2, 50V, 0.1μF, 20%
C6, C10 042-33024-001-0 CAP, CERAMIC, TYPE2, 50V, 33pF, 5%
C9, C13 030-22556-0A0-0 CAP, ELEC, 85C, 50V, 2.2μF, +80%, -20%
CN1A, CN1B 211-10021-180-0 CONN, 1/4", WAFER, SOCKET, 3-PIN,
CN1A, CN1B 212-10032-330-0 CONN, 1/4", WAFER, PLUG, 3-PIN,
CN2A, CN2B 211-10024-110-0 CONN, 1/4", WAFER, SOCKET, A3963WV2-2P
CN3A 212-10090-330-0 CONN, 1/4", WAFER, PLUG,9-PIN, 170mm
CN3B 212-10090-340-0 CONN, 1/4", WAFER, PLUG,9-PIN, 370mm
CN4A 211-10081-130-0 CONN, 1/4", WAFER, SOCKET, 8-PIN, 2532-08
CN4A-1-2 212-10080-420-0 CONN, 1/4", WAFER, PLUG,8-PIN, 270mm
CN4B 211-10091-160-0 CONN, 1/4", WAFER, SOCKET, 9-PIN
CN4B-1-2 212-10090-320-0 CONN, 1/4", WAFER, PLUG,9-PIN, 270mm
CN5 212-10023-060-0 CONN, 1/4", WAFER, PLUG, 2-PIN,
CN5 211-10021-160-0 CONN, 1/4", WAFER, SOCKET, 2-PIN
D1, D2 090-02000-020-0 SEMI, DIODE, DETECTOR, 1N4148
D3 090-01512-000-0 SEMI, DIODE, ZENER, 5.1V, 0.5W, ±10%
D4, D5 090-00002-001-0 SEMI, DIODE, 1N4002
IC1, IC2 160-00000-900-0 IC, 4558DY, JRC
J1A, J1B 211-03300-170-0 CONN, 1/4",XLR-JACK, NCJ6FK-V, NEUTRIK
L1_R69,L2_R70 075-10082-100-0 INDUCTOR, 1uH, ±10%, AXIAL(4.7Ω, 3W)
LED1A, LED1B 100-00010-030-1 LED, SE3011, RED
LED2A, LED2B 100-00040-030-0 LED, EL204YT, YELLOW
LED3A, LED3B 100-00050-110-0 LED, EL204GT, GREEN
LED4 100-00010-030-1 LED, SE3011, RED, 3mm
R1, R2, R4, R5, R18, R21, R22, R25 006-15020-440-0 RES, MF, 1/16W, 15K, ±1%
R11, R27 000-10126-400-0 RES, CF, 1/4W, 100K, 5%
R20, R38, R47 000-22206-400-0 RES, CF, 1/16W, 2.2K, 5%
R26, R33, R34, R42 000-10326-400-0 RES, CF, 1/4W, 10K, 5%
R28 000-10226-400-0 RES, CF, 1/4W, 1K,5%
R29, R44 000-47206-400-0 RES, CF, 1/16W, 4.7K, 5%
R3, R10, R13, R15 000-10206-400-0 RES, CF, 1/16W, 1K, 5%
R30, R57 000-18226-400-0 RES, CF, 1/4W, 1.8K, 5%

16
R32, R53 000-12326-400-0 RES, CF, 1/4W, 10K, 5%
R35 000-33306-400-0 RES, CF, 1/16W, 33K, 5%
R36, R40 000-47306-400-0 RES, CF, 1/16W, 47K, 5%
R54 000-18306-400-0 RES, CF, 1/16W, 18K, 5%
R56, R59 000-18226-400-0 RES, CF, 1/4W, 1.8K, 5%
R58 000-10106-400-0 RES, CF, 1/16W, 100, 5%
R6, R7 000-82326-400-0 RES, CF, 1/4W, 82K, 5%
R63 000-15426-400-0 RES, CF, 1/4W, 150K, 5%
R65 000-33326-400-0 RES, CF, 1/4W, 33K, 5%
R66 003-33003-601-0 RES, CEMENT, 5W, 0.330, 5%, U
R8, R12 000-43306-400-0 RES, CF, 1/16W, 43K, 5%
R9, R14, R31, R37, R46, R60, R62 000-10306-400-0 RES, CF, 1/16W, 10K, 5%
RL1 076-01212-012-0 RELAY, VB12MU-5
SW1 210-01202-050-0 SW, SLIDE, SSFZ22-07
TR1, TR3-6, TR8-10, TR13, R15, TR16 120-00000-800-0 SEMI, TRANSISTOR, NPN, 2SC1815, GR
TR17, TR19 120-00000-800-0 SEMI, TRANSISTOR, NPN, 2SC1815, GR
TR7, TR11, TR12 121-00000-200-0 SEMI, TRANSISTOR, PNP, 2SA1015, GR
VR1A, VR1B 022-20370-010-0 RES, SIGNAL, ROTARY, 13mm, 20KA

17
Parts List Schematic Diagram 2MAR1 Power Amplifier Input / Output
(MAR1 Input / Output
&
Power Supply Board)
Ref. PHONIC Part # Description
BD3 090-10015-000-0 SEMI, DIODE, BRIDGE, KBL06
BD4 090-10013-000-0 SEMI, DIODE, BRIDGE, PUB605
C31 058-68325-100-0 CAP, LINE, 250V, 0.068μF, 20%, MEX-683K
C32-C37 030-33866-030-0 CAP, ELEC, 85C, 63V, 3300μF, +80%, -20%
C38 030-10838-000-0 CAP, ELEC, 85C, 25V, 1000μF, +80%, -20%
CH1, CH2 211-17000-410-0 BINKING POST BP-47-2P
CN2/4, CN4B 211-10044-040-0 CONN, 1/4", WAFER, SOCKET, 4-PIN
FUSE1-FUSE5 280-63267-000-0 FUSE, 6.3A (250V VERSION ONLY), VDE/CE, S
FUSE5 280-3E216-001-0 FUSE, 3.15A, 250V, SSA, BEL5ST3.15
POWER SWITCH/*2 322-21500-400-6 TUBE, 15mm*D4
PS1, PS3 211-24503-000-0 CONN, 1/4", SCREW, TERMINAL, 5-PIN
PS2 211-24903-000-0 CONN, 1/4", SCREW, TERMINAL,9-PIN
R39 000-10326-400-0 RES, CF, 1/4W, 10K, 5%
R52 003-33003-600-0 RES, CEMENT, 5W, 330, 5%,
R52, R55 *2 322-05000-100-0 TUBE, 5mm*D1
R55 003-18003-600-0 RES, CEMENT, 5W, 180, 5%,
SW2 210-01202-050-0 SW, SLIDE, SSFZ22-07
SWITCH POWER 210-03201-004-0 SW, PUSH, POWER
T1 070-20338-800-0 POWER, TRANSFORMER, 115/230V
Parts List MAR1 Power Amplifier Input / Output
(MAR1 Input / Output & Power Supply Board)
Ref. PHONIC Part # Description
F34-10000-002-0 MAR1, PCB-INPUT
POWER AMPLIFIER
INPUT/OUTPUT BOARD MAR1 281-00000-020-0 FUSE, CLIP, FH-1206
315-00016-000-0 GND, LUG, JG-6L
290-34340-200-0 PCB, MAR1, INPUT, PANEL
382-10005-010-0 TINNER, WIRE, 5mm, D0.6
H34-10002-002-0 MAR1, PCB-INPUT, A/I
F34-10000-003-0 MAR1, PCB-LED, M/I
290-34340-300-0 PCB, MAR1, VR+LED, PANEL
H34-10003-003-0 MAR1, PCB-LED

18
Parts List Schematic Diagram 3MAR1 Power Amplifier ch1/2 Power AMP
(MAR1 Power Amplifier Board)
Ref. PHONIC Part # Description
C101 ,C126 042-47225-050-0 CAP, CERAMIC, TYPE2, 50V, 4700pF, 5%
C102, C109, C122, C128 042-47144-050-0 CAP, CERAMIC, TYPE2, 100V, 470pF, 5%
C103, C129 042-47124-050-0 CAP, CERAMIC, TYPE2, 50V, 470pF, 5%
C104 030-22736-0A0-0 CAP, ELEC, 85C, 25V, 220μF, 20%
C104 322-05000-100-0 TUBE, 5mm*D1
C104 322-05000-100-0 TUBE, 5mm*D1
C105, C125 042-10424-050-0 CAP, CERAMIC, TYPE2, 50V, 0.1μF, 5%
C106, C124 042-10444-050-0 CAP, CERAMIC, TYPE2, 100V, 0.1mF, 5%
C107, C123 030-47668-0A0-0 CAP, ELEC, 85C, 63V, 47μF, +80%, -20%
C108, C121 046-10214-060-0 CAP, MYLAR, 100V, 0.001μF, 5%
C110, C120 042-10144-050-0 CAP, CERAMIC, TYPE2, 100V, 100pF, 5%
C111 042-33024-050-0 CAP, CERAMIC, TYPE2, 50V, 33pF, 5%
C112, C118 046-10204-050-0 CAP, MYLAR, 50V, 0.001μF, 5%
C113, C114 046-47304-001-0 CAP, MYLAR, 50V, 0.047μF, 5%
C115, C116, C119 030-10658-0A0-0 CAP, ELEC, 85C, 50V, 10μF, +80%, -20%
C117 032-10636-000-0 CAP, ELEC, NP, 85C, 25V, 10μF, 20%
C127 030-22736-0A0-0 CAP, ELEC, 85C, 25V, 220μF, 20%
CN101, CN102, CN104 211-10024-110-0 CONN, 1/4", WAFER, SOCKET, 2-PIN, A3963WV-2P
CN103 211-10091-160-0 CONN, 1/4", WAFER, SOCKET, 9-PIN, 2532-09
D101, D102, D105, D106, D113, D115,
D117, D118 090-00002-001-0 SEMI, DIODE, RECT, 1N4002
D103, D114 090-00017-000-0 SEMI, DIODE, RECT, LT6A04
D104, D116 090-01103-010-0 SEMI, DIODE, ZENER, 10V, 0.5W, ±10%
D108, D107, D111, D112 090-02000-020-0 SEMI, DIODE, DETECTOR, 1N4148
D109, D110 090-01752-010-0 SEMI, DIODE, ZENER, 7.5V, 0.5W, ±10%
IC101 160-00018-900-0 IC, MC34081
R101, R108, R145, R149 000-82226-400-0 RES, CF, 1/4W, 8.2K, 5%
R102, R122, R128, R150 000-10326-400-0 RES, CF, 1/4W, 10K, 5%
R103, R151 000-47326-400-0 RES, CF, 1/4W, 47K, 5%
R104, R152 000-33236-400-0 RES, CF, 1/2W, 3.3K, 5%
R105, R153 000-47126-400-0 RES, CF, 1/4W, 470, 5%
R106, R148 000-12326-400-0 RES, CF, 1/4W, 12K, 5%
R107, R154 000-33726-400-0 RES, CF, 1/4W, 3.3, 5%
R109, R147 000-47026-400-0 RES, CF, 1/4W, 47, 5%
R110, R146 000-68236-400-0 RES, CF, 1/2W, 6.8K, 5%
R111, R144 000-27326-400-0 RES, CF, 1/4W, 27K, 5%
R112, R114, R138, R143 000-10126-400-0 RES, CF, 1/4W, 100, 5%
R113, R117, R136, R140 000-22226-400-0 RES, CF, 1/4W, 2.2K, 5%
R115, R134 000-47736-400-0 RES, CF, 1/2W, 4.7, 5%
R116, R121, R123, R137, R130 000-10226-400-0 RES, CF, 1/4W, 1K, 5%
R118, R141 000-10136-400-0 RES, CF, 1/2W, 100, 5%
R119 000-10426-400-0 RES, CF, 1/4W, 100K, 5%
R124, R129 000-68326-400-0 RES, CF, 1/4W, 68K, 5%

19
R125,R126 000-39226-400-0 RES, CF, 1/4W, 3.9K, 5%
R127 006-49912-420-0 RES, MF, 1/4W, 4.99K, ±1%
R131 000-82126-400-0 RES, CF, 1/4W, 820, 5%
R132 020-20151-000-0 RES, SEMI-FIX, ROTARY, 200, 0.1W, D10
R133 011-33000-010-0 RES, THERMAL, PTC
R142, R120 003-33093-602-0 RES, CEMENT, 5W, 0.33, 5%
TR101, TR103, TR110 120-00005-000-0 SEMI, TRANSISTOR, NPN, MJE340
TR102, TR106 120-00008-700-0 SEMI, TRANSISTOR, NPN, TIP35
TR102, TR106, TR108, TR113, TR115 590-53008-200-0 SCREW, MACHINE, SET, SCR, M3.0*8, BLK
TR102, TR106, TR108, TR113, TR115 610-60301-006-0 WASHER, SPR, D3*D5*1, NI
TR102, TR106, TR113, TR115 314-00000-050-0 BUSHES, 602S(V.0)
TR104, TR111, TR114 121-00006-100-0 SEMI, TRANSISTOR, PNP, MJE350
TR105 120-00001-200-0 SEMI, TRANSISTOR, NPN, BC550
TR107 120-00001-400-0 SEMI, TRANSISTOR, NPN, 2N5551
TR108 120-00008-800-0 SEMI, TRANSISTOR, NPN, MJE802
TR108 313-00000-060-0 WASHER, RUBBER, TO-2203
TR109 121-00000-300-0 SEMI, TRANSISTOR, PNP, 2N5401, GR
TR112 121-00000-800-0 SEMI, TRANSISTOR, PNP, BC560
TR113, TR115 121-00006-200-0 SEMI, TRANSISTOR, PNP, TUP36
Parts List MAR1 Power Amplifier ch1/2 Power AMP
(MAR1 Power Amplifier Board)
Ref. PHONIC Part # Description
POWER AMPLIFIER BOARD MAR1 F34-10000-001-0 MAR1, PCB-POWER
526-20033-010-0 HEAT, SINK, MAR1
290-34340-100-0 PCB, MAR1, POWER-PANEL
382-20002-510-0 TINNER, WIRE, 2.5mm, D0.6
382-20005-010-0 TINNER, WIRE, 5mm, D0.6
382-20007-510-0 TINNER, WIRE, 7.5mm, D0.6
H34-10001-001-0 MAR1, PCB-POWER