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Motorola 8991142, Service Manual

The Motorola 8991142 Service Manual is a comprehensive guide for troubleshooting and maintaining your device. With detailed instructions and diagrams, this manual ensures a smooth user experience. Download it for free from manualshive.com, your reliable resource for user manuals downloads. Accessible, detailed, and essential for Motorola users.

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Summary of Contents for 8991142

Page 1: ... Release the chassis board locking spring and carefully lift chassis board out of housing Position the chassis board vertically with respect to radio housing for servicing 2 POWER SUPPLY REQUIRE MENTS It is preferable to use a storage battery without a battery charger in place of a battery elim inator If a battery eliminator i s used it must be well filtered and regulated After servicing i s perfo...

Page 2: ...be sets F i r s t isolate the defec ive stage through signal injection lext through the use of voltage and mesistance measurements plus dotorolals servicing tools deter nine the necessary maintenance Bequired Motorola s servicing nethods and aids when properly med can help make transistor s e r rice easier lefer to Profitable Transistor Cadi0 Servicing manual Motorola P a r t No 68P60011A53 and II...

Page 3: ...s have been replaced Before proceeding with step 3 back tuning cores out of tuning coils to eliminate their effect on trimmer Ant recept thru dummy seefig 6 IRepeat steps 4 Hi end stop Tuner carriage 9 1611 from hi end stop Hi end stop 5 until no further increase then cement cores in plac PLUG TO FIT RECEIVER ANTENNA RECEPTACLE TO SIGNAL TO RECEIVER GENERATOR ANTENNA 0 RECEPTACLE I ETAL SHIELD CAN...

Page 4: ...COMPONENTS SHOWN ARE ACTUALLY LOCATED ON OPPOSITE SIDE COMPONENT SIDE OF PLATING CONTAINS GROUND CONNECTIONS ONLY SEE PLATED CHASSIS BOARD DESCRIPTION ...

Page 5: ...g 2 1 83 I 2 S 8 I a s p 1 z g n xs i g2 i z J g 0 F ...

Page 6: ...r5 3 CHASSIS 2N176 LOCKING PWRAMP DRIVER SPRING PARTS LOCATION ...

Page 7: ...E 5 amp 03 E 5 50C40780A03 SPEAKER P M 6x9 8QVC USE 75A41785AOl BUMPER speaker 50C40780A01 11 35 8A500109 CAPACITOR generator lB41553A01 CHOKE instrument c l u s t e r COILS C H O K E S suppression 1 32C41727A01 GASKET speakek L1 L2 L3 See Tuner P a r t s lV41700A36 KIT r a d i o i p s t a l l a t i o n 3 L 4 24C40788A04 I M A G E TRAP n i 2K565208 NUT hex 1 4 2Ox7 16x1 8 L 5 2 5 4 1 6 1 9 0 1 CHO...

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