Sharp HT-SB60 SOUND BAR HOME THEATER SYSTEM - Circuit Diagram – LED blinking codes

HT-SB60 Sound Bar Home Theater system consisting of HT-SB60 (sound bar system) and CP-SW60 (active sub-woofer system).

Used ICs: EP92A2E [HDMI] – HT165235 [FL DRIVER] – TAS5504A – TAS5342 [SUB-WOOFER OUTPUT] – CS495314 – M3030RFEGPFP 

Abnormal detection distinction at DEMO indicator (LED_red)

It has a case that need to Power OFF immediately after detected an abnormal condition without display any error indication due to safety matter. In such case, a trouble point can be judged by a distinction indication at DEMO indicator which current is being supplied during Power off.

Basically, it is decided to be distinguished which input port of the system microcomputer was detected or which communication information was detected. Moreover, two kinds of over-voltage and drop-voltage are decided to be distinguished, and contents of indication are decided to be changed when it is detected in the range of the A/D value in the A/D input port, for example the over-voltage, the normality voltage, the drop-voltage of the power supply line are being monitored.

DEMO indicator Distinction Display Format

A lighting period (or flashing period) and a lights-off period are controlled as the bottom figure after the abnormal detection and the Power off transition. It will repeat and control 1 frame of the bottom figure. (A lighting period or flash period is mentioned on the "H" side.) 1 frame is set up as 2 sec lighting period in every 3 sec or flashing period, repeat m time, and then the last period only (m+1) should turn off the lights. (To recognize the head position.)

m is < 2 m < 10, it can be set up in every model freely as long as "‘Distinction No.’ and the Abnormal Detection Table” mentioned in two clauses are protected.

A flashing period is set to one place only of No. 1 - No. m, and others are lighting period. The ‘Error Distinction No.’ is made at which part is flashing. In other words, it is set as the ‘Distinction No.’ by looking at which number is flashing from the head of 1 frame.

It can set up freely in every model the repetition period 3sec, the lighting or flash period 2sec, a flashing periodic 500ms etc. as long as it can be recognized.

It defines the abnormal detection contents that correspond to the ‘Distinction No.’ as the bottom table in order to put in together between the models.

1 è System protect

2 è Reserved

3 è Amp shut down

It is desirable to indicate it with small ‘Distinction No.’ when it is being monitored two and more abnormal detection in one line together using 1 port. In other words, when it is being monitored by compound 1 input. For example, it is set to Distinction No. 1 when System Protect and AMP Protect are being monitored in 1 port.

For this model, abnormal detection (Power Off without error display) as the following.

1 è System protect è Power Off and indicate at Power LED [Distinction  No 1]

3 è Amp shut down è Power Off and indicate at Power LED [Distinction No 3]

As for subwoofer Abnormal Detection, there are 3 types of detection.
The detection is by simple RED LED flashing indicating Abnormal Status.

Repeated Bus Error è Red LED blinking for 2 times and pause cycle.

System Protect è Red LED blinking for 4 times and pause cycle.

AMP Shutdown è Red LED blinking for 5 times and pause cycle.

Circuit diagram

FL driver

HDMI

Sub-Woofer

Main

Wiring diagram

Exloded views

Manual pairing between the Amplifier and Sub-woofer

After changing the TX or RX Wireless Modules, the Sound bar and Subwoofer must establish a link. Set the connection by the following method.

Press and hold the PAIRING button on the sound bar for more than 3 seconds.
Within 2 minutes, press and hold the PAIRING button on the subwoofer for more than 3 seconds.

During pairing process

On sound bar : “PAIRING” will blink.

On subwoofer : indicator will blink in blue.

When pairing is successful

On sound bar : “PAIRING” disappears.

On subwoofer : indicator turns blue.

Enter the Test Mode version display

While pressing down ON/STANDBY and SOURCE button, ON AC supply.
Version will be displayed as below :-
SB60 XXXX --> DHHHHHHH --> TX Ver : XXXX --> RX Ver : XXXX -->
Press SOUND MODE key at main unit to toggle between display

SB60 = Model name, SB60
XXXX = version no
D = Destination
HHHHHHH = HDMI Firm Ware Version
TX Ver : XXXX = Wireless module Firmware version (sound bar wireless module)
RX Ver : XXXX = Wireless module Firmware version (sub-woofer wireless module)

Enter Key and Display Test Mode

After enter Test Mode version display, Press VOL UP / DOWN button.
Select “KEY TEST”. Press SOUND MODE button to execute.

1. TIMER LED will light ON

2. LCD display will light on. If press button as below

VOL UP > KEY 01

VOL DOWN > KEY 02

SOUND MODE > KEY 03

PAIRING > KEY 04

SOURCE > KEY 05

Exit the Test Mode

While in Test Mode function, Press ON/STANDBY button to exit.