Crown Audio 1200 Switches, Integrated Circuits, Connectors, Mounts U1, U2, Covers for J100, J200

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Micro-Tech 1200 Amplifier Service Manual

Q42552A0 Main Module (D6304A4/D6304B2 board) Parts List Cont.

R116	R216	A10266-3351	3.3M
R118	R218	A10266-2711	270 OHM
R119	R219	A10266-3011	300 OHM
R120	R220	A10266-2711	270 OHM
R121	R221	C 5062-2	100K TRIM
R122	R222	A10266-2741	270K
R123	R223	A10266-1831	18K
R124	R224	A10266-6821	6.8K
R125	R225	C 7782-3	100 OHM
R126	R226	C 7782-3	100 OHM
R127	R227	A10266-6821	6.8K
R128	R228	A10266-1031	10K
R129	R229	A10266-1041	100K
R130	R230	A10266-1041	100K
R131	R231	A10266-1031	10K
R132	R232	C 5062-2	100K TRIM
R133	R233	A10266-2741	270K
R134	R234	A10266-1831	18K
R135	R235	C 7782-3	100 OHM
R136	R236	A10266-6821	6.8K
R137	R237	C 7782-3	100 OHM
R138	R238	A10266-6821	6.8K
R139	R239	A10266-1021	1K
R140	R240	A10266-8201	82 OHM
R141	R241	A10266-1541	150K
R142	R242	A10266-1541	150K
R146	R246	A10266-1031	10K
R147	R247	C 7781-5	200 OHM
R148	R248	A10266-2721	2.7K
R149	R249	C 7781-5	200 OHM
R150	R250	A10266-2721	2.7K
R151	R251	A10266-1031	10K
R152	R252	A10266-1231	12K
R154	R254	A10266-1011	100 OHM
R156	R256	A10266-1321	1.3K
R157	R257	A10266-1321	1.3K
R158	R258	A10266-9121	9.1K
R159	R259	A10266-1031	10K
R161	R261	A10266-4701	47 OHM
R162	R262	A10266-4701	47 OHM
R165	R265	A10265-53611	5.36K 1%
R166	R266	A10265-53611	5.36K 1%
R167	R267	A10266-1021	1K
R168	R268	A10265-95301	953 OHM
R170	R270	A10266-1021	1K
R171	R271	A10265-95301	953 OHM

SWITCHES

S3	C 6841-8	4PDT
S100	C 6781-6	6P3T

INTEGRATED CIRCUITS

U1		C 5095-2	MC7815
U2		C 5096-0	MC7915
U100	U200	C 6500-0	UPA77 PNP
U103	U203	C 6910-1	UPA76 NPN
U104	U204	C 6900-2	MC34084P

CONNECTORS

J9		C 6871-5	6-Pin Conn.
J100	J200	C 6777-4	Phone Jk.
J500	J800	D 6619-7	10" Ribbon
J600	J700	D 6620-5	6" Ribbon

MOUNTS U1, U2

(2)C 1889-2 6-32 NUT

(2)C 2176-3 6-32 X .5 SCREW

(2)C 5341-0 HEATSINK

(2)C 5594-4 STAR WASHER

MOUNTS U104, U204

(2)C 3450-1 14 PIN SOCKET

COVERS FOR J100, J200

(2)C 6778-2 COVER, PHONE JACK

MISC

(1)C 4508-5 16 PIN SOCKET

(1)C 5061-4 1N3070 DIODE

(1)C 6851-7 5-Position .1 Center Header

(1)C 7077-8 3-Conductor Wire Retainer C 6899-6 Wire Posts

BLANK CIRCUIT BOARD

D 6304A4 or D 6304B2

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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