EDM-031 HDMI: No Signal, but Everything Seems to Work

PS5 Questions PS5
1

Hi everyone,

I have a PS5 with an EDM-031 motherboard.

The boot sequence appears normal:

  • 1st stage: approximately 321 mA

  • 2nd stage: approximately 7–10 mA

There are no UART error codes. The only UART entry is related to shutting the console down by holding the power button.

So far, I have:

  • Replaced the Panasonic HDMI retimer IC

  • Replaced the HDMI port

  • Checked both sides of the board around the HDMI circuit for shorts; none were found

  • Replaced the C1 and “71” diodes

  • Checked the HDMI EMI filters; they appear to be fine

I have tested the console with both a TV and a lower-resolution monitor, using three different HDMI cables.

The problem is that when the console is powered on, the LED changes from blue to white, but there is still no HDMI signal.

Where else should I look for the fault?

Thank you very much for any help.

2

Hi, the HDMI upscaler might be faulty. Do you have the option to try another one?

Have you checked the capacitors on the HDMI connector?

You can try changing the HDCP resolution from the secure menu.

3

Hi,

Yes all these except one change the resolution in safe menu because I can’t acces it.

Could someone please measure the voltage at the red dot in standby? I only get a few mV there, while at the blue dot I get 3.3 V. Also, what value could that resistor be? (Maybe: [APU] SOC_DP0_HPD Input Also connected to 3.3V_SS_PG1 thru R1053 (4.7k))

image
image398×454 59.8 KB

Thank you,

4

Yap, that resistor was bad (19-20MOhm) replaced and now I have 3.3V both side and I have Signal with black screen…

5

Okay, I was just going to answer you. I have 3.3v in both places. Is your light white or blue?

6

Thank you,

I have blue then solid white.

7

Could someone please help me with a high-resolution photo of the area around and below the Panasonic IC on an EDM-031 board? I’d like to check whether the previous repairer knocked off or removed any components.

Thank you,

8

1000016043
10000160431920×1440 741 KB

1000016042
10000160421920×1440 681 KB

EDM030 digial, Should be same to EDM031 DISC ver

9

Finally I have some error code.

Error Code Count Note
80C00140 29 Main SoC forced off via power button
808300F1 7 Possible Secure Loader error; Southbridge, APU, or SSD
80C0012C 6 Blu-ray drive detached
808E8102 2 Unknown; not documented
808E0109 2 Unknown TPM-related error
808E0005 2 Abnormal host command; Wait SIG1 communication error
80000009 1 Unexpected power loss or shutdown failure
10

Post a high definition photo of the HDMI port pin

11

If the PS5 status LED stays white while no picture output, I doubt you will get an UART error code.

I would
(A) clear the UART error codes and see if they come back
(B) check for correct readings at HDMI port and HDMI chip:

HDMI_port_readings_all
HDMI_port_readings_all777×128 5.17 KB

X_HDMI_chip
X_HDMI_chip1275×544 20.1 KB

12

Hello Calvin,

I already found your post and tested those pins and the values looks good. The ps5 sometime crash. I have signal the tv recognise as “ps5,game” but black screen.

I working on this ps5 2 weeks and I removed uart code lots of time and the mentioned code come back sometimes.

13

The original issue was the same as now. After I replaced hdmi port and panasonic ic (and fix the 4.7kOhm) the ps5 do the same: signal with black screen so maybe the ic and the hdmi connector was good.

I noticed flux around southbridge ic so yesterday I did a reflow but the issue is same.

So I think this is not a panasonic issue maybe apu or ssd controller or software/bricked issue

14

So the status LED isn’t staying white every time you try to start the PS5?

The dcdc bug converter with marking ‘RJ=’ / ‘504x’ would be a condidate to fail without stopping the PS5 from reaching white light. Do all three segments of 0.9V_HDMI (light blue marking) have 0.9V?

15

No. The light is blue then solid white every time (but ps5 crash sometime)

I measured 1.8V and 0.9V the other side the panasonic ic lots of time and the values are there then I powered off and on again and wait for a while then measured again and the values still present

16

The issue with this SOC_DP0_HPD line is, it goes direct to the APU.
What is your resistance to ground readings at this line?

17

panasonic pin74 - 11,7kOhm (black gnd)

panasonic pin74 - 3,7kOhm (red gnd)

Yes. I found this on psdevwiki-com/ps5/CXD90060GG and I measured all component arount this trace then I found the 22kOhm bad resistor

18

At my chip:
pin 74 - 10k Ohm (black gnd)
pin 74 - 12k Ohm (red gnd)

I would try a cheap scaler which ignores HDCP and check if there is an active HDMI output.

19

Oh, I found another issue. The PS5 doesn’t recognize the DualShock controller I borrowed one yesterday, either in Safe Mode or during a normal boot.

So I think the issue is more serious than I initially thought.

I’ll spend a little more time on it, but I think I may have to give up on it soon. It’s no longer worth the time I’ve already put into it.

(Thank you vinted sus greek man :melting_face: )

20

All right. This one will be a donor. I already repaired another PS5 EDM-033 using parts from it; that console had a VRM issue. The repair shop said it had an APU issue, but I figured out that the actual problem was just a 1 µF capacitor.

So thank you all for your help!