Panasonic SC-UA7E

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Unauthorized copying and distribution is a violation
of law.
PSG1606004CE
A6
Wireless Speaker System
Model No. SC-UA7E
SC-UA7PC
SC-UA7PH
SC-UA7PR
Product Color: (K)...Black Type
TABLE OF CONTENTS
PAGE PAGE
1 Safety Precautions----------------------------------------------- 3
1.1. General Guidelines---------------------------------------- 3
1.2. Before Repair and Adjustment ------------------------- 4
1.3. Protection Circuitry---------------------------------------- 4
1.4. Caution For AC Cord (For E)--------------------------- 5
1.5. Safety Parts Information -------------------------------- 6
2 Warning-------------------------------------------------------------- 7
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 --------------------------------------------------- 8
3 Service Navigation----------------------------------------------- 9
3.1. Service Information----------------------------------------9
3.2. Software Update Procedure-----------------------------9
4 Specifications---------------------------------------------------- 10
5 Location of Controls and Components------------------ 11
5.1. Remote Control Key Button Operation (For E/
PH/PR)------------------------------------------------------ 11
5.2. Remote Control Key Button Operation (For
PC)----------------------------------------------------------- 12
5.3. Main Unit Key Button Operation---------------------- 13
6 Service Mode----------------------------------------------------- 14
6.1. Self Diagnostic Mode ----------------------------------- 14
6.2. Doctor Mode----------------------------------------------- 15
6.3. Self-Diagnostic Error Code Table-------------------- 17
7 Troubleshooting Guide --------------------------------------- 18

Panasonic SC-UA7E Specifications

General

Tweeter	Yes
Tweeter diameter	60 mm
Number of speakers	-
Audio output channels	2.1 channels
RMS rated power	1700 W
Peak Music Power Output (PMPO)	18700 W
Power source type	AC
USB 2.0 ports quantity	2
Connectivity technology	Wireless
Product color	Black
Interface	NFC/Bluetooth/USB/3.5mm
Product type	2.1 portable speaker system
Subwoofer depth	80 mm
Subwoofer height	40 mm
AC adapter frequency	50 Hz
AC adapter input voltage	220 - 240 V
Power consumption (standby)	0.5 W
Power consumption (typical)	190 W
Display type	FLD

Weight and Dimensions

Depth	295 mm
Width	260 mm
Height	744 mm
Weight	14000 g

Summary

Safety Precautions

General Guidelines

Before Repair and Adjustment

Caution For AC Cord (For E)

Safety Parts Information

Lists critical safety components that require specific replacement parts.

Warning

Prevention of Electrostatic Discharge (ESD) to Electrostatically Sensitive (ES) Devices

Guidelines to prevent damage to sensitive electronic components from static electricity.

Grounding for electrostatic breakdown prevention

Service Navigation

Software Update Procedure

Specifications

Service Mode

Self Diagnostic Mode

Instructions for entering and using the self-diagnostic mode to check for errors.

Doctor Mode

Details on accessing and using the 'Doctor Mode' for advanced diagnostics.

Doctor Mode Table 1

Lists items, FL display, and key operations for Doctor Mode functions.

Doctor Mode Table 2

Continues the Doctor Mode tables, covering Bluetooth and Region checks.

Self-Diagnostic Error Code Table

Lists specific error codes, their diagnosis, and potential solutions.

Power Supply Error Code Table

Lists error codes related to the power supply and their diagnostic steps.

Bluetooth Error Code Table

Lists error codes related to Bluetooth communication and address issues.

Troubleshooting Guide

No Power or No Display

Provides a flowchart for diagnosing and resolving power or display issues.

Bluetooth Pairing Failure

Troubleshooting steps for issues with Bluetooth pairing.

No Key Function (Touch Panel)

Diagnostic flowchart for touch panel key function failures.

No Remote Control Function

Troubleshooting guide for when the remote control is not working.

No NFC

Troubleshooting steps for NFC functionality issues.

USB Device Cannot Detect

Diagnostic flowchart for problems with USB device detection.

Fuse Checking

Guide on how to check fuses for continuity.

No Output Sound

Troubleshooting guide for various input modes when there is no sound output.

Check Point

SMPS P.C..

Main P.C..

DAMP P.C..

Disassembly and Assembly Instructions

Disassembly Flow Chart

Main Components and P.C.B. Locations

Service Position

Checking of SMPSAC Inlet, DAMP, Main and PanelIR Sensor P.C.B.

Procedure for connecting and checking multiple PCBs for service purposes.

Block Diagram

System Control

Continues the system control block diagram, showing more interconnections.

Audio

Continues the audio block diagram, showing amplifier and speaker connections.

Power Supply

Continues the power supply block diagram, detailing voltage regulation and control.

Schematic Diagram

Schematic Diagram Notes

Main (AUX Tuner) Circuit (12)

Schematic of the Main PCB's AUX Tuner circuit, part 1.

Main (AUX Tuner) Circuit (22)

Schematic of the Main PCB's AUX Tuner circuit, part 2.

Main (Connector) Circuit (12)

Main (Connector) Circuit (22)

Main (DSP) Circuit

Schematic diagram of the Main PCB's Digital Signal Processor (DSP) circuit.

Main (LDO) Circuit

Schematic of the Main PCB's Low Dropout Regulator (LDO) circuits.

Main (Optical) Circuit

Main (MICON) Circuit (13)

Main (MICON) Circuit (23)

Main (MICON) Circuit (33)

Main (USB) Circuit

Panel Circuit (12)

Panel Circuit (22)

Mic Circuit

IR Sensor and USB Circuit

DAMP Circuit (13)

DAMP Circuit (23)

DAMP Circuit (33)

DAMP (VREG) Circuit (12)

DAMP (VREG) Circuit (22)

AC Inlet and SMPS Circuit (12)

SMPS Circuit (22)

Voltage and Waveform Measurement

Voltage Measurement

Provides standard voltage values for measurement during diagnostics.

Main P.C.B. (12)

Table of voltage measurements for specific pins on the Main PCB, IC1001, IC1002, IC1006.

Main P.C.B. (22)

Table of voltage measurements for specific pins on the Main PCB, IC2104, IC2107, IC2108, etc.

DAMP P.C.B. (12)

Table of voltage measurements for specific pins on the DAMP PCB, IC2101, IC2102, IC2103, IC3001, etc.

DAMP P.C.B. (22)

Table of voltage measurements for specific pins on the DAMP PCB, Q2100, Q2103, etc.

PANEL P.C..

MIC P.C.B.

SMPS P.C.B.

Table of voltage measurements for specific pins on the SMPS PCB.

Exploded View and Replacement Parts List

Mechanical Replacement Part List

Electrical Replacement Part List