Sign up to save your podcasts
Or
Share EEVblog 1602 – Sony Amplifier REPAIR ADVENTURE
Share to email
Share to Facebook
Share to X
Share to email
Share to Facebook
Share to X
Or
EEVblog 1602 – Sony Amplifier REPAIR ADVENTURE
Repair of a Sony HCD-SBT20B Bluetooth Stereo. What it’s like to nail the repair and then, well come-a-gutsa and have to go down the rabbit hole to fix the fix all whilst battling bad design info.
How VFD displays work: https://www.youtube.com/watch?v=gZIRPJt69sM
Mud run video: https://www.youtube.com/watch?v=yAahT8_P-_E
Tektronix autopsy: https://www.youtube.com/watch?v=VZCokbsTwmQ
Forum: https://www.eevblog.com/forum/blog/eevblog-1603-sony-amplifier-repair/
00:00 – Sony HCD-SBT20B Bluetooth Stereo with a water ingress problem
01:17 – Water isn’t that bad actually, even mud.
02:49 – Comically long screwdriver time
04:09 – Vacuum Fluorescent display for all you VFD fanboys
05:10 – Annoying construction
06:14 – Logic level problem? Doesn’t seem to be the PSU.
07:57 – Yuck!
09:58 – PCB Cleaning time
12:11 – Did the cleaning work?
13:28 – Hang on, I think I see something…
14:36 – More corrosion
15:21 – Back to measuring voltages on the VFD
17:15 – Handy use of Auto Hold
18:00 – VFD dispaly under the microscope
19:33 – Cathode measurement
20:13 – Anode connection tracing
22:10 – I wouldn’t have designed it like this
23:08 – Sanity check
24:32 – What’s in the can?
28:16 – Schematic time. Sony service manuals are something else
33:22 – Don’t come-a-gutsa on dual diode pinouts
35:16 – Let’s power it up on the bench
37:19 – There’s something very strange about this…
40:04 – Oh FFS!
42:03 – Now it’ll work…
View all episodes
By David L. Jones
4.6
7979 ratings
Repair of a Sony HCD-SBT20B Bluetooth Stereo. What it’s like to nail the repair and then, well come-a-gutsa and have to go down the rabbit hole to fix the fix all whilst battling bad design info.
How VFD displays work: https://www.youtube.com/watch?v=gZIRPJt69sM
Mud run video: https://www.youtube.com/watch?v=yAahT8_P-_E
Tektronix autopsy: https://www.youtube.com/watch?v=VZCokbsTwmQ
Forum: https://www.eevblog.com/forum/blog/eevblog-1603-sony-amplifier-repair/
00:00 – Sony HCD-SBT20B Bluetooth Stereo with a water ingress problem
01:17 – Water isn’t that bad actually, even mud.
02:49 – Comically long screwdriver time
04:09 – Vacuum Fluorescent display for all you VFD fanboys
05:10 – Annoying construction
06:14 – Logic level problem? Doesn’t seem to be the PSU.
07:57 – Yuck!
09:58 – PCB Cleaning time
12:11 – Did the cleaning work?
13:28 – Hang on, I think I see something…
14:36 – More corrosion
15:21 – Back to measuring voltages on the VFD
17:15 – Handy use of Auto Hold
18:00 – VFD dispaly under the microscope
19:33 – Cathode measurement
20:13 – Anode connection tracing
22:10 – I wouldn’t have designed it like this
23:08 – Sanity check
24:32 – What’s in the can?
28:16 – Schematic time. Sony service manuals are something else
33:22 – Don’t come-a-gutsa on dual diode pinouts
35:16 – Let’s power it up on the bench
37:19 – There’s something very strange about this…
40:04 – Oh FFS!
42:03 – Now it’ll work…
More shows like EEVblog
View all
This American Life
90,795 Listeners
Security Now (Audio)
2,005 Listeners
The Amp Hour Electronics Podcast
230 Listeners
The Rest Is History
15,596 Listeners