panasonic hifi - sony icf-c793 v1.0 sm 143 free download

File name hifi_-_sony_icf-c793_v1.0_sm_143.pdf

ICF-C793/C793L SERVICE MANUAL US Model Canadian Model Ver 1.0 1999. 02 Australian Model ICF-C793 AEP Model ICF-C793/C793L UK Model ICF-C793L Photo: ICF-C793L SPECIFICATIONS ICF-C793 FM/AM PLL SYNTHESIZED CLOCK RADIO ICF-C793L FM/MW/LW PLL SYNTHESIZED CLOCK RADIO MICROFILM TABLE OF CONTENTS SAFETY CHECK-OUT After correcting the original service problem, perform the follow- 1. GENERAL ... 3 ing safety check before releasing the set to the customer: Check the antenna terminals, metal trim, "metallized" knobs, 2. DISASSEMBLY ... 5 screws, and all other exposed metal parts for AC leakage. Check leakage as described below. 3. ELECTRICAL ADJUSTMENTS ... 6 LEAKAGE TEST 4. DIAGRAMS The AC leakage from any exposed metal part to earth ground and from all exposed metal parts to any exposed metal part having a 4-1. Block Diagram ... 9 return to chassis, must not exceed 0.5 mA (500 microampers.). 4-2. Printed Wiring Boards ... 11 Leakage current can be measured by any one of three methods. 4-3. Schematic Diagram ... 13 1. A commercial leakage tester, such as the Simpson 229 or RCA 4-4. IC Pin Function Description ...