Panasonic sc ua7e sc ua7pc sc ua7ph sc ua7pr

Page 1

PSG1606004CE
A6

Service Manual

Remote
Control

Wireless Speaker System

Model No. SC-UA7E
SC-UA7PC
SC-UA7PH
SC-UA7PR

Product Color: (K)...Black Type

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 service information by anyone else could result in serious injury or death.

IMPORTANT SAFETY NOTICE

There are special components used in this equipment which are important for safety. These parts are marked by A in the Schematic
Diagrams, Circuit Board Diagrams, Exploded Views and Replacement Parts List. it is essential that these critical parts should be replaced
with manufacturers specified parts to prevent shock, fire or other hazards. Do not modify the original design without permission of

manufacturer.

TABLE OF CONTENTS

1 Safety Precautions --------
1.1. General Guidelines-
1.2. Before Repair and Adjustment
1.3. Protection Circuitry ------------
1.4. Caution For AC Cord (For E) --
1.5. Safety Parts Information

2 Warning -----------------------------
2.1. Prevention of Electrostatic Discharge (ESD)
to Electrostatically Sensitive (ES) Devices ---------- 7
2.2. General description about Lead Free Solder
(PbF) ---------------------------------------------------------- 8
2.3. Grounding for electrostatic breakdown
prevention

3 Service Navigation--

Panasonica

3.1. Service information -----------
3.2. Software Update Procedure
4 Specifications->-
5 Location of Controls and Components--
5.1. Remote Control Key Button Operation (For E/
PH/PR) ------------------------------------------------------ 11
5.2. Remote Control Key Button Operation (For
PC) -------------------------------------
5.3. Main Unit Key Button Operation
6 Service Mode ------------------
6.1. Self Diagnostic Mode
6.2. Doctor Mode ----------------------------
6.3. Self-Diagnostic Error Code Table -
7 Troubleshooting Guide -

© Panasonic Corporation 2016. All rights reserved.
Unauthorized copying and distribution is a violation
of law.

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7.1.
7.2.
7.3.
7.4.
7.5.
7.6.
7.7.
7.8.
7.9.
B Disassembly and Assembly Instructions-
8.1.
8.2.
8.3.
8.4.
8.5.
8.6.

8.7.
8.8.
8.9.
8.10.
8.11.
8.12.
8.13.

8.14.
8.15.
8.16.
8.17.
8.18.
8.19.
9 Service Position ------------------------
9.1.

10 Block Diagram -----------------
10.1.
10.2.
10.3.

11 Wiring Connection Diagram--

12 Schematic Diagram---
12.1.
12.2.
12.3.
12.4.
12.5.
12.6.
12.7.
12.8.
12.9.

12.10.
12.11.
12.12.
12.13.
12.14.
12.15.
12.16.
12.17.
12.18.
12.19.
12.20.

12.21

. DAMP (VREG Circuit(2 /2)---

No Power or No Display---
Bluetooth® Pairing Failure-
No Key Function (Touch Panel)
No Remote Control Function----
No NFC -------------------------
USB Device Cannot Detect
Fuse Checking -----

No Output Sound--

Check Point ----------------------------------

Type of Screws
Disassembly Flow Chart-
Main Components and PCB. Locations
Disassembly of Rear Panel --
Disassembly of Top Panel Unit
Disassembly of Left & Right Side Panel

Assembly --------------------------------------------------- 27
Disassembly Upper Front Panel Assembly-- 27
Disassembly Panel Block --
Disassembly of Mic P.C.B. -
Disassembly of Panel/IR Sensor P.C.B.-
Disassembly of USB P.C.B. -------------

26

---2s

29

Disassembly of NFC P.C.B_ ........................... 29
Sensor

Disassembly of Touch PCB.
Assembly -----------------------
Disassembly of Main P.C.B
Disassembly of DAMP P.C.B. -----------
Disassembly of SMPS/AC Inlet P.C.B.
Disassembly of Top Speaker Block-
Disassembly of Speaker Units-
Disassembly of Lighting P.C.B. -

Checking of SMPS/AC Inlet, DAMP, Main and
Panel/IR Sensor P.C.B.

System Control -
Audio ..............
Power Supply ______________

Schematic Diagram Notes -
Main (AUX Tuner) Circuit (1/2) -
Main AUX Tuner) Circuit (2/2) -
Main Connector) Circuit (1/2) -
Main Connector) Circuit (2/2) -
Main DSP) Circuit --------------
Main LDO) Circuit---
Main Optical) Circuit
Main MICON) Circuit (1/3)
Main MICON) Circuit (2/3)
Main MICON) Circuit (3/3)
Main USB) Circuit
Panel Circuit (1/2)-
Panel Circuit (2/2)-
Mic Circuit -----------
IR Sensor and USB Circuit
DAMP Circuit (1/3) -----------
DAMP Circuit (2/3)---
DAMP Circuit (3/3)--
)
)

DAMP (VREG Circuit(1/2)

12.22.
12.23.
13 Printed Circuit Board --------
13.1.
13.2.
13.3.
13.4.
13.5.
13.6.
13.7.
13.8.

14 Voltage and Waveform Measurement
. Voltage Measurement --------------
15 Exploded View and Replacement Parts List--
15.1.
15.2.
15.3.
15.4.
15.5.
15.6.
15.7.

14.1

AC Inlet and SMPS Circuit (1/2) -
SMPS Circuit (2/2) -------------------

Main P.C.B. (Side A) --
Main P.C.B. (Side B) --------
Panel and IR Sensor P.C.B.-
Mic and USB P.C.B.---
DAMP P.C.B. (Side A)
DAMP P.C.B. (Side B)
SMPS P.C.B.-
AC Inlet P.C.B.--

Cabinet Parts Location 1 -------------------
Cabinet Parts Location 2--
Cabinet Parts Location 3--
Cabinet Parts Location 4
Packaging ------------------
Mechanical Replacement Part List-
Electrical Replacement Part List----