Panasonic sb fx 85 p service manual

Page 1

ORDER NO. MD070304SCE

Service Manual

Wireless Sound System

SH-FXBSTPP SB- FXBSP/PC

Specification
n RF SECTION
Wireless module

Frequency range 2.400 to 2.4835 GHz

Number of channels 3
Music Port (Rear)

Sensitivity 100 mV, 4.7 kg
Terminal Stereo, 3.5 mm (1/8") jack

n AMPLIFlER SECTION
Output power
RMS output power

Front Ch 90 W per channel (39), 1 kHz, 10 %
THD
Total RMS power 180 W

FTC output power stereo mode

Front Ch 17.5 W per channel (30), 150 Hz-2O
kHz, 1 /0 THD
Total FTC stereo mode power 35 W

n SPEAKER SECTION

Type 1 way, 1 speaker system (Bass
reflex)

(L and R ch in one box)
Speaker unit(s)

SH-FX85P

SH-FX85PC
SH-FX85TPP
SB-FX85P
SB-FX85PC
Colour

(K) .......... Black Type

n GENERAL

Power supply

Power consumption
Digital transmitter
Wireless sound system
Dimensions (W x H x D)

Digital transmitter
Wireless sound system

Mass

Digital transmitter

Wireless sound system
Operating temperature range
Operating humidity range
Power consumption in off mode

Notes:

106 HZ - 22 kHZ (-10 dB)

AC 120 V, 60HZ

1.7W
38W

65 mm x 52 mm x 8.6 mm
(2-9/16" x 2-1/16" x 11/32")

430 mm x 170.5 mm x189 mm
(16-15116 x 6-23/32" x 7-6/16")

0.02 kg (0.04 lbs)
2.03 kg (4.47 lbs)
)

+5 0C to +35 °C (+41 F to +95 °F
5 "/0 to 90 % RH (no condensation)

approx. 4.5 W

1.Specifications are subject to change without notice.

Mass and dimensions are approximate

2.Tota| harmonic distortion is measured by a digital spectrum

analyzer

Full range
Output sound pressure

Frequency range

6.5 cm (2-1/2") Cone type
80 dB/W (1.0 m)
88 Hz - 25 kHz (-16 dB)

Panasonic?

Power supply:

This model uses Switching Mode Power Supply (SMPS) Module for
powering the receiver unit. It is replaceable as an assembly unit.

© 2007 Matsushita Electric industrial Co. Ltd.. All
rights reserved. Unauthorized copying and
distribution is a violation of law.

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SH-FXESP I SH-FXBSPC

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 protessional technicians. Any attempt to service
or repair the product or products dealt with in this service information by anyone else could result in serious injury or death.

CONTENTS

1 Note -------------------

1.1. System Combination Breakdown

is

2 Safety Precautions
2.1. GENERAL GUIDELINES
2.2. Before Repair and Adjustment (Digital Receiver SB-FX85)

..................................................................................... 4
2.3. Protection Circuitry --------------------------------------------------------- 5
2.4. Safety Part Information -------------------------------------------------- 5

3 Prevention of Electro Static Discharge (ESD) to

Electrostatically Sensitive (ES) Devices --------------------------------- 6

4 Handling the Lead-free Solder -----------
4.1. Service caution based on legal restrictions

5 Accessories-

6 Using of Digital Receiver Un

6.1. Connecting the digital transmitter (SH-FX85T) ----------------- 9

6.2. AC Power Cord connection (SB-FX85) ---------------------------- 9
6.3. Making the wireless link (SB-FX85) --------------------------------- 9

7 Operation Procedures ----------------------------------------------------------- 10
7.1. Remote Control Key Buttons Operations (SA-PT650P/PC-
S)--- -------------------------------------------------------------------- 10

7.2. Main Unit Key Buttons Operations (SA-PT650P/PC-S) --11
7.3. Digital Receiver Operations (SB-FX85) 11
7.4. Digital Receiver Operations as standalone audio amplifier

(SB-FX85) -------------------------------------------------------- 12

8 New Features ------------------------------------------------------------------------ 13

8.1. Wireless Features -------------------------------------------------------- 13

9 Self-Diagnosis and Special Mode Setting ----------------------------- 20

9.1. Wireless Service Mode Summary Table ------------------------ 20

9.2. Service Mode Table (Wireless) ------------------------------------- 21

10 Assembling and Disassembling ------------------------------------------- 23
10.1. Note -----------------------------------

10.2. Disassembly flow chart (For SB-FX85)
10.3. Main Parts Location Diagram -----------

10.4. Disassembly of Digital Receiver (SB-FX85P/PC) ........... 25
10.5. Disassembly of Transmitter Module P.C.B (SH-FX85T) -- 37
11 Service Positions .................................................................. 33

Page
11.1. Checking of Panel, RF Adapter, and Receiver Module
P.C.B. --------------------------------------------
11.2. Checking of D»Amp, and D-Port P.C.B
12 Voltage Measurement 8. Waveform Chart"-

12.1. Voltage Measurement -------------------------------------------------- 40

12.2. Waveform Chart ----------------------------------------------------------- 42

13 Wiring Connection Diagram -------------------------------------------------- 43

14 Block Diagram ---------------------------------------------------------------------- 45
14.1. DIGITAL AMPLIFIER/D PORT/PANEL BLOCK DIAGRAM

----------------------------------------------------------------------------------- 45

14.2. RECEIVER MODULE BLOCK DIAGRAM ---------------------- 45

14.3. TRANSMITTER MODULE BLOCK DIAGRAM-
15 Notes of Schematic Diagram-

16 Schematic Diagram

16.1. D-AMP CIRCUIT .......................................................... 51
16.2. PANEL CIRCUIT ---------------------------------------------------------- 53
16.3. D-PORT CIRCUIT and RF ADAPTER CIRCUIT ----------- 54
16.4. RECEIVER MODULE CIRCUIT .................................... 55
16.5. TRANSMITTER MODULE CIRCUIT .............................. 59
17 Printed Circuit Board Diagram ---------------------------------------------- 63
17.1. D-AMP P.C.B. , RECEIVER MODULE P.C.B. .............. 63
17.2. PANEL P.C.B. , D»PORT P.C.B. , RF ADAPTER P.C.B-64
17.3. TRANSMITTER MODULE P.C.B ....................... ".65
18 Illustration of IC's, Transistors and Diodes .......................... 67
19 Terminal Functions of Integrated Circuits ............................ 63
19.1. |C10 (C1A800002772): IC BASE BAND ........................ 58
19.2. |C13 (010800002648): IC RF ...................................... 68
19.3. IC1000 (CZBBYY000375): IC MCU ............................... 69
20 Exploded Views -------------------------------------------------------------------- 71
20.1. Cabinet Parts Location ------------------------------------------------- 71

20.2. Packaging
21 Service Hint
21.1. TX/ RX KIT ASSEMBLY

21.2. TX CASE ASSEMBLY .................................................. 73
22 Replacement Parts List ......................................................... 74
22.1. Part List (SB-FX85) ------------------------------------------------------ 74

22.2. Part List (SH-FX85) ------------------------------------------------------ 78