Crown Audio 1200 service manual Parts List Non-Module, Supplimental Items, Power Supply

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Micro-Tech 1200 Amplifier Service Manual

Parts List (Non-Module)

SUPPLIMENTAL ITEMS
CPN	ITEM	QTY
D 4137-2	Nylon Thumbscrew Washer	4
C 3342-0	Feet, Black Self-Stick	4
A10087-71012	10-32 .75 Machine (Rack Screw)	4
K80583-6	MT Series Owners Manual	1
POWER SUPPLY
CPN	ITEM	QTY
M43534-3	MT Fuse Board Assembly (120V, 60Hz Units Only)	1
D 8069-4	Fuse Board Insulator	1
Q42867-4	Fuse Module, Ch 1 (50-60 Hz Units)	1
Q42866-6	Fuse Module, Ch 2 (50-60 Hz Units)	1
A10285-28	20 Amp Fuse (100-120V Units)	2
A10285-26	10 Amp Fuse (200-240V Units)	2
A10285-7	.5 Amp Fuse (120V 60Hz Units Only)	1
D 6438-2	Power Transformer (120V 60Hz Units Only)	2
D 7674-1	Power Transformer (50-60Hz Universal Voltage)	2
A10089-11032	10-32 x 2 Screw for power transformers	8
A10101-19	500OD x 195ID Fiber Washer	4
H42873-2	Transmotor (120V 60Hz Only)	1
H43068-8	Transmotor (100V Units Only)	1
H43407-8	Transmotor (120V 50Hz Only)	1
H43061-3	Transmotor (200-240V Units Only)	1
D 8439-8	Fan Bracket	1
C 9939-7	Fan Blade	1
C 7062-0	6-32 x 5/16 Flat head Screw	2
C 6485-4	10000µF 100V Capacitor	2
C 8752-5	35 Amp 400V Bridge Rectifier	2
D 8438-0	Capacitor Bracket	2
A10095-4	#10 External Star Lockwasher	4
A10098-5	1/4" Belleville Spring Washer	4
C 9870-4	10-32 x .38 Screw	4
D 6764-1	Shoulder Washer	4
OUTPUT ASSEMBLY (ONE PER CHANNEL)
CPN	ITEM	QTY (PER CHANNEL)
C 4751-1	NPN Power Transistor	6
C 6492-0	PNP Power Transistor	6
A 10315-1	6-32 x .56 Hex wshr HD	12
C 7326-9	#6 Solder Lug	2
C 9491-9	6-32 x .312 pan head	27
D 7796-2	Sil Pad (between heatsink and chassis)	1
	-For units with output board P10305-4 use Sil Pad D 6280-8.
	-For use with output boards earlier than P10305-4 use
	Sil Pad D 6104-0.
D 7797-0	Output Pad (between module and chassis)	1
	-For units with output board P10305-4 use Output Pad C 7597-4.
	-For units with ouput boards earlier than P10305-4 use
	Output Pad D 7026-4.
D 8197-2	Paper Shroud	1
C 9387-9	Plasti-Rivit	2

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Contents MICRO-TECH-1200 Avis Table of Contents Scope WarrantyIntroduction Parts Information Power SpecificationsVoltage Conversion Theory FeaturesOverview Front END OperationGrounded Bridge Topology Voltage AmplificationLast Voltage Amplifiers LVAs Voltage TranslatorsLow Side LS High Side HSOutput Device Emulation Protection Odep Positive Test 2 Output Bias Adjustment Electrical Checkout ProceduresTest 3 Odep Voltage Adjustment Standard Initial ConditionsTest 5 Common Mode Rejection Test 4 AC Power DrawTest 7 Phase Response Test 12 Output PowerTest 13 Reactive Loads Test 16 Signal to Noise RatioTest 14 Odep Limiting Test 15 LF ProtectionTest 19 Intermodulation Distortion Post TestingTest 20 Clipping Spec at 0 dB Output 0.01% Spec at -35 dB Output 0.05%Power Supply Parts List Non-ModuleOutput Assembly ONE PER Channel Supplimental ItemsBack Panel Assembly Output AssemblyChassis Front Assembly Main Chassis AssemblyParts List Non-Module Module and Schematic Information Fuse and Display Module Parts Lists Q42549-8 Output Module P10115-7 board Parts List Q42647-0 Output Module P10137-1 board Parts List Q42717-1 Output Module P10233-8 board Parts List Q42871-6 Output Module P10305-4 board Parts List Q42968-0 Output Module P10341-9 board Parts List Q43202-3 Output Module P10397-1 board Parts List Resistor Networks Q42552A0 Main Module D6304A4/D6304B2 board Parts ListConnectors SwitchesIntegrated Circuits Mounts U1, U2Q42714-8 Main Module D 6910-0 board Parts List Dpdt Open Q42776-7 Main Module D 7251-8 board Parts ListQ42776-7 Main Module D 7251-1 board Parts List HDR, 5 PIN Q42980-5 Main Module D7911-7 board Parts List Resistors DP3T NPN MPS8097 Q43035-7 Main Module D7993-5 board Parts ListJumper IC’S Q43031-6 Main Module D7993-5 board Parts List Resistor Networks Switches