Thursday, November 26, 2015

DENON DHT-S514 SOUND BAR FIRMWARE UPDATE TROUBLESHOOTING AND CIRCUIT DIAGRAM

SOUND BAR

DENON DHT-S514 

 FIRMWARE UPDATE TROUBLESHOOTING AND CIRCUIT DIAGRAM 

FIRMWARE UPDATE PROCEDURE
MCU firmware updating by USB
Items to Be Prepared
# Windows PC
# USB cable (A-Mini B)
# Copy ‘D&M Group Soundbar Flash Programmer’ application in your PC.
# Copy the two update files in the same folder on your PC.
# The update files are HEX file and MAP file.
******. Hex
******.map
Firmware update procedure
(1) Leave the soundbar AC unplugged, Hold the Standby Button and plug in the USB on the rear to the PC
(2) Start ‘D&M Group Soundvar Flash Programmer’ application in the PC, and press ‘Connect’ button.
(3) Select the region in region pull-down menu( ‘US/CN/EU’ or ‘ Japan’).
(5) Press “Erase-Program-Verify” button to start the F/W update.
When the update completes, the application shows “Programing completed Verification successful“
(6) Press “Bootloader Ver” button, and verify the MCU F/W version and region.
TROUBLE SHOOTING
Check the each voltage
1. Check 24V
Check the voltage pin 1 of J5 conector. Is the voltage in the specification? (24V±10%)
2. Check 5.2V
Check the input voltage 5 pin of U27. Is the voltage in the specification? (24V±5%)
Is a PWM being output from 6 pin of U27?
1. Check the soldering of D7, D9, C294, L43, R230, R231 and R232.
2. Check the soldering of the U27.
3. Check 5V(SW5V)
Check the input voltage 2 pin of U29. Is the voltage in the specification? (24V±5%)
Is a PWM being output from 8 pin of U29?
1. Check the soldering of D8, C315, C316, L46, R235, R236 and R2383.
2. Check the soldering of the U21
4. Check BK5V
Check the input voltage 1 pin of U23. Is the voltage in the specification? (5V±5%)
Check the soldering of L44.
Is the 5V output from 5 pin of U23?
Check the soldering of the U23.
5. Check ADC3.3V
Check the input voltage 1 pin of U25.
Is the voltage in the specification? (5V±5%)
Check the soldering of the L44.
Is the 3.3V output form 5 pin of U25.
Check the soldering of the U25.
 6. Check BK3.3V
Check the input voltage 3 pin of U26.
Is the voltage in the specification? (5V±5%)
Check the soldering of the D6.
Is the 3.3V output form 3 pin of U26?
Check the soldering of the U26.
7. Check 1.8V
Check the input voltage 3 pin of U28.
Is the voltage in the specification? (5V±5%)
Check the soldering of L47, Q11, R262, Q12 and R263.
Is the 1.8V output from 2 or 4 pin of U28?
Check the soldering of the U28.
8. Check D3.3V
Check the input voltage 3 pin of U30.
Is the voltage in the specification? (5V±5%)
Check the soldering of L47, Q11, R262, Q12 and R263.
Is the 3.3V output form 2 or 4 pin of U30?
Check the soldering of U30.
9. Check BT3.3V
Check the input voltage 3 pin of U34.
Is the voltage in the specification? (5V±5%)
Check the soldering of L47, Q11, R262, Q12 and R263.
Is the 3.3V output from 2 or 4 pin of U34?
Check the soldering of U34.
Is the 3.3V output form +side of C334?
Check the soldering of L50 and R239.
11. Check 3.3V
Check the input voltage 3 pin of U32.
Is the voltage in the specification? (5V±5%)
Check the soldering of L47.
Is the 3.3V output form 2 or 4 pin of U32?
Check the soldering of U32.
11. Check H1.8V
Check the input voltage 3 pin of U33.
Is the voltage in the specification? (5V±5%)
Check the soldering of U32.
Is the 1.8V output form 2 or 4 pin of U33?
Check the soldering of U33.
13. No sound is output from Rch
Check the input signal 4, 5, 10 and 11 pin of U19. Is the audio signal being input?
Check the output signal 21, 23, 27 and 29 pin of U19. Is a PWM being output?
Check the soldering of U19.
Check the output signal between 1 and 2 pin of J5, between 3 and 4 pin of J5.
Is the audio signal being output?
Check the soldering of C200, C209, C210, C220, L35, L36, L37 and L38.
4. No sound is output from Lch
Check the input signal 4, 5, 10 and 11 pin of U21.
Is the audio signal being input?
Check the output signal 21, 23, 27 and 29 pin of U21.
Is a PWM being output?
Check the soldering of U21.
Check the output signal between 1 and 2 pin of J6, between 3 and 4 pin of J6.
Is the audio signal being output?
Check the soldering of C250, C258, C261, C268, L39, L40, L41 and L42.
15. No sound is output from Subwoofer
Check the input signal 20,21 and 22 pin of IC2.
Is the audio signal being input?
Check the output signal 39 and 46 pin of IC2.
Is a PWM being output?
Check the soldering of IC2.
Check the output signal between 1 and 2 pin of J2.
Is the audio signal being output?
Check the soldering of L4, L5, FB2 and FB4.
CIRCUIT DIAGRAM 
CLICK ON THE IMAGE TO ZOOM IN