Sangean PR-D7 User Manual

PR-D4 FM/MW PLLSYNTHESIZED RECEIVER CONTENTS Specification ………………………………………………………………………………………………………2-5Block Diagram ………………………………………………

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

5. ALIGNMENT FOR FM TUNING SENSITIVITY a. Required Instruments FM Signal Generator (frequency range up to 220 MHz) SSVM b. Alig

TEST POINTS DIAGRAM12

MAIN PCB TOP VIEW13

MAIN PCB BOTTOM VIEW14

POWER PCB TOP VIEW15

WIRING DIAGRAM16

( 1 ) Power can not be turned on No Check whether battery supply circuit is normal. Check whether the pin 36 of IC1 ex

( 3 ) Power can not be turned on Check whether the sensitivity is Yes Check the antenna wire and BPF recovered if antenna

PRD-4PART NO DESCRIPTION Q'TY REMARK1000750 IC TC9318 AFAG-094 1 IC 1,1011350 IC AN7141N 1 IC 3,1011362-P CH IC XC62FP3002PRN PbF 2 IC 2,5,101326

Specification FM. ELECTRICAL PERFORMANCE Model: PR-D4/L Brand: Temp: °CR.H.: % Date: 2005/1/11 Condition Value Test no. Test Item Input Output f

PRD-4PART NO DESCRIPTION Q'TY REMARK5010361 CH CC 103K 50V X7R-C 14 C 37,42,44,62,63,74,78,83,88,92,102,107,110,111,5010471 CH CC 104Z 25V Y5V-C

PRD-4PART NO DESCRIPTION Q'TY REMARK6500440 CH RP 2.2KJx4-C 6 RP 1-6,8000010 W/JUMP 5(10)0.6mm 12 J 28-30,33-35,39,40,53,55,57,301,8000030 W/JUM

PRD-4Ref no PART NO. DESCRIPTION Q'TY DWG NO. REMARK1 20K4001 LCD LIGHT LENS 1 A4-RD2-04A2 20M3000 RUBBER KEY HOLDER 1 A2-RD15-083 20M3010 LED CO

1. IC1 – TC9318BF IC CIRCUIT BLOCK DIAGRAM24

2. IC2 & IC5 – 3002PL 3. IC3 – AN7141 25

4. IC4 – TA2149BFN 26

IC1 – TC9318BF PIN OFF FM MW LW PIN OFF FM MW LW 1 1.48 1.49 1.49 1.49 33 0 2.85 0 0 2 1.50 1.50 1.50 1.50

IC2 – XC62AP3002PL IC4 – TA2149BFN PIN FM PIN FM AM 1 3.02 1 0 0 2 5.02 2 0.8 0 3 0 3 0.44 1.

Transistor FM AM LW FM AM LW FM AM LW E 0 0 E 0.42 E 0 B 0.58 0 B 0.96 B 0 Q1 C 0.01 1.79 Q

MW. ELECTRICAL PERFORMANCE Model: PR-D4 Brand: Temp: °CR.H.: % Date: 2005/1/11 Condition Value Test no. Test Item Input Output freq Nom. Lim

AACCAAB EKV1450A A1SS314C2SA1611 2SB808FKV1610SCRLS4148BE2SC4154CCC2SA1020YZENER RD6.2(A:Anode C:Cathode)ZENER RD15Diodes(E:Emitter C:Collector B:Base

SCHEMATIC DIAGRAM31

MW. ELECTRICAL PERFORMANCE Model: PR-D4L Brand: Temp: °CR.H.: % Date:2005/1/11 Condition Value Test no. Test Item Input Output freq Nom. Lim 1

LW. ELECTRICAL PERFORMANCE Model: PR-D4L Brand: Temp: °CR.H.: % Date: 2005/1/11 Condition Value Test no. Test Item Input Output freq Nom. Lim

μ_com IC1 MW OSC D15,L1 LW OSC D16,L2 MW ANT D15,L4_1 LW ANT D16,L4_1 MW/LW OSC SWITCH Q15, Q16 MW/LW ANT SWITCH D17, D18 IC4 TA2149 FM ANT INPUT

1. ALIGNMENT FOR AM/LW IF a. Required Instruments: AM IF Sweep Generator with scope b. Alignment Procedure Mode Adjustment Procedure (1)

2. ALIGNMENT FOR AM/LW TUNING VOLTAGE RANGE a. Required Instruments: DVM b. Alignment Procedure Mode Adjustment Procedure (1) Turn on the

3. ALIGNMENT FOR FM TUNING VOLTAGE a. Required Instruments DVM b. Alignment Procedure Mode Adjustment Procedure (1) Turn on the radi