Sangean DT-V Manuel d'utilisateur

DT-120 FM STEREO/AM/TV RADIO CONTENTS Specification ………………………………………………………………………………………………………2-3Block Diagram ………………………………………………………………………

PCB TOP VIEW10

PCB BOTTOM VIEW11

WIRING DIAGRAMGray =Top layerYellowish brown = Bottom layer12

TROUBLESHOOTING FLOW CHART ( 1 ) Power can not be turned on No Check whether L9 is normal. Check whether the R66 exceeds 1.5V

( 3 ) Weak sensitivity on AM mode Check whether the sensitivity is No Check the antenna wire and Q1 recovered if antenna is

DT-120PART NO DESCRIPTION Q'TY REMARK1000791-A CH LSI TC9349AFG-310 1 IC 2,1013140-A CH IC AN7504SB 1 IC 3,1013150-A CH IC TA2142FNE 1 IC 1,10210

DT-120PART NO DESCRIPTION Q'TY REMARK5447261-A CH CC 472K 50V X7R-C 2 C 53,54,5447472-A CH CC 474Z 16V Y5V-C 6 C 23,31,36,37,48,50,5456001-A CH

DT-120Ref no PART NO. DESCRIPTION Q'TYDWG NO. REMARK1 21P7000-A LCD HOLDER 1 A3-DT120-12A2 21P7010-A LCD HOLDER SHELD 1 A4-DT120-13A3 21P7020-A B

IC CIRCUIT BLOCK DIAGRAM 1. IC1 – TA2142FNE 2. IC3 – AN7504SB 19

SPECIFICTION. FM ELECTRICAL PERFORMANCE Model : DT-120 (EUR) Brand: Temp: ℃ R.H.: % Date : 2006/04/27 Condition Value Test No. T

3. IC2 – TC9349AFG 20

IC AND TRANSISTOR VOLTAGE CHART IC1 – TA2142FNE PIN FM AM PIN FM AM PIN FM AM PIN F

IC3 – AN7504SB PIN FM AM PIN FM AM PIN FM AM PIN FM AM 1 0 0 8 0 0

AABAECS DAA2 3CCAB EC5 4CCSVC383CPSD501HUNR51132SC31422. EMITTER 21SVC220UNR5210UNR5110C2SD1048CAAG1SS3575. BASE 13. BASE 21. EMITTER 162SC41772SB

SCHEMATIC DIAGRAM24

SPECIFICTION. AM ELECTRICAL PERFORMANCE Model : DT-120 (EUR) Brand: Temp: ℃ R.H.: % Date : 2006/04/27 Condition Value Test

Q6CF1L INQ13D2 / L2D3 / L3CF2 CF3D1, Q1AM RFswitch circuitQ10Q2 / Q11 / Q12DBB CONTROLR O/PL INIF INLCD DISPLAYEarphoneJK1X1SW10 BANDSW7 Tuning upSW4

ALIGNMENT INSTRUCTIONS 1. ALIGNMENT FOR TUNING CAPACITOR VOLTAGE RANGE a. Required Instruments： Signal Generator SSVM b. Alignment Procedure Mode

2. ALIGNMENT FOR FM SENSITIVITY a. Required Instruments： Signal Generator SSVM b. Alignment Procedure Mode Adjustment Procedure (1) Set the power

3. ALIGNMENT FOR TUNING CAPACITOR VOLTAGE RANGE a. Required Instruments： Signal Generator SSVM b. Alignment Procedure Mode Adjustment Procedure

4. ALIGNMENT FOR AM SENSITIVITY a. Required Instruments AM Signal Generator SSVM b. Alignment Procedure Mode Adjustment Proc

Gray = Bottom layerYellowish brown = Top layerTEST POINTS DIAGRAM9