Panasonic se fx 50 eb service manual

Page 2

SH-HTEBOWEB ISH-FXSDTEB lSE-FX50EB

A. WARNING

This service information is designed for experienced repair technicians only and is not designed for use by the general public.

It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product.
Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to service
or repair the product or products dealt with in this sen/ice information by anyone else could result in serious injury or death.

CONTENTS

Page

1 Safety Precautions ------------------------------------------------------------------ 3
1.1. GENERAL GUIDELINES ................................................ 3

2 Caution for AC Mains Lead ..................................................... 4
3 Handling the Lead-free Solder ................................................ 5
3.1. About lead free solder (PbF) ..................................... 5

4 Before Repair and Adjustment (Digital Receiver SE-FX50) ----5
5 Protection Circuitry ----- --------------------------------------------- 5
6 Using of Digital Receiver Unit (SE-FXSO) -----
6.1. Below is tips on using the digital receiver"-
6.2. Tips for using Digital Transmitter (SH-FXSOT)

7 Technical Information (New Features) .............................. 3
71. RF Wireless Audio Transceiver ...................................... 3
7.2. Detail Block Diagram (Receiver module) ......................... g
7.3. Class-D Amplifier --------------------------------------------------------- 13
8 TX & RX Module P.C.B. -- 17
8.1. TX and RX Inspection Layout --------------------------------------- 17
8.2. List of RF components .13

8.3. RF Transmit Power Test-

8.4. Receiver Sensitivity -----

8.5. Program ID ------------------------------------------------------------------ 25
8.6. Testing of link between transmitter & receiver --------------- 28
9 Assembling & Disassembling ----------------------------------------------- 29
9.1. Disassembly flow chart ------------------------------------------------- 29
9.2. P.C.B. Positions ----------------------------------------------------------- 30
9.3. Disassembly & Assembly Procedures --------------------------- 31
9.4. Service Positions (Digital Receiver SE»FX50) ---------------- 34

10 Block Diagram ---------
10.1. POWER BLOCK---

Page

10.2. RECEIVER MODULE BLOCK ...................................... 35
10.3. TRANSMITTER MODULE BLOCK ................................ 33

11 Notes of Schematic Diagram ................................................ 40
12 Schematic Diagram --------------------------------------------------------------- 41
12.1. DIGITAL AMP CIRCUIT, TRANSFORMER CIRCUIT, LED
CIRCUIT and SWITCH CIRCUIT .................................. 41

12.2. RECEIVER MODULE CIRCUIT .................................... 43

12.3. TRANSMITTER MODULE CIRCUIT-
13 Printed Circuit Board --
13.1. DIGITAL AMP P.C.B
13.2. TRANSFORMER P.C.B. LED P.C.B and SWITCH P.C.B

----------------------------------- 50
13.3. RECEIVER MODULE pee ......................................... 51
13.4. TRANSMITTER MODULE P.C.B .................................. 52

14 Wiring Connection Diagram -------------------------------------------------- 53

15 Illustration of ICs, Transistors and Diodes ........................... 54

16 Terminal Function Of IC D --------
16.1. ICZ (M92000000013): IC RF

17 Voltage Measurement"-

17.1. DIGITAL AMP P.C.B. --------------------------------------------------- 55
17.2. TRANSFORMER P.C.B. ............................................... 55
18 Parts Location and Replacement Parts List ......................... 57
18.1. Cabinet ------------------------------------------------------------------------ 58
18.2. Module Kit Unit (For Service Parts Replacement) ---------- 61
18.3. Electrical Part List (SE-FXSO) ....................................... 52

18.4. Electrical Part List (SH-FXSOT) ----------------------------- 65
18.5. Packing Materials & Accessories Parts List

18.6. Packaging