Uploaded June 2026 | Updated September 2026, 25 minutes ago
Here is an Actor DX Class D Amplifier, It is completely dead - does not start, no power... and no schematics! The fault isn't immediately obvious either. In fact everything seems OK but it just does not work. Yeah I know this one is an hour long but if you stick with it you may learn something new. And before you ask, yes I DO FIX IT but skip to the end and you will miss out on a lot of useful knowledge. This one is all about the journey, more than the result.
AliExpress Coupons
👉Click the link https://s.click.aliexpress.com/e/_Evbm72S or enter the search code [AYFU3C] on the AliExpress homepage. And don't forget to enjoy extra savings with the exclusive discount codes below.
🌟 Remember, these codes can be used on almost all items in selected countries on AliExpress. These codes are for USA buyers only until 1st August.
Discount Codes:
$2 off on orders over $18:【LEABC2】
$5 off on orders over $39:【LEABC5】
$10 off on orders over $69:【LEABC10】
$20 off on orders over $139:【LEABC20】
$23 off on orders over $169:【LEABC23】
$35 off on orders over $249:【LEABC35】
$55 off on orders over $379:【LEABC55】
$70 off on orders over $499:【LEABC70】
These codes valid WORLDWIDE until 1st August 2026
$3 off on orders over $29:【IFPH3QCH】
$6 off on orders over $59:【IFPUITII】
$9 off on orders over $89:【IFPKTYZF】
$16 off on orders over $149:【IFPKSB1Y】
$23 off on orders over $199:【IFPGVQ2I】
$30 off on orders over $269:【IFPMJL29】
$40 off on orders over $369:【IFPPCLK9】
$50 off on orders over $469:【IFPUTWNY】
$60 off on orders over $599:【IFPAF4GV】
$70 off on orders over $699:【IFPXSMK2】
For All Your PCB needs: free $5 discount coupon
pcbway.com/setinvite.aspx?inviteid=561767
Equipment used in my videos. These are affiliate links, you pay the normal price and I make a small commission.
DM40C
https://s.click.aliexpress.com/e/_c4q1dFy7
Aneng AN870 (Same as Zoyi ZT219)
https://s.click.aliexpress.com/e/_c2wcOv9N
Zoyi ZT-DQ02
https://s.click.aliexpress.com/e/_oB2u3sT
WinAPEX 268B Clamp Meter
https://s.click.aliexpress.com/e/_opJTjEP
VC480C+ MILLIOHM METER
https://s.click.aliexpress.com/e/_onE0FaJ
MESR-100 ESR METER
https://s.click.aliexpress.com/e/_oombcej
XC6013L CAPACITOR METER
https://s.click.aliexpress.com/e/_omnOxub
FNB58 USB ANALYZER
https://s.click.aliexpress.com/e/_c3hysTXt
4KV Breakdown Tester
https://s.click.aliexpress.com/e/_omKXmND
LED Backlight Tester
https://s.click.aliexpress.com/e/_oCRPzdl
NI-210SC Curve Tracer
https://s.click.aliexpress.com/e/_o2e0Par
NI210SJ (cheaper option but watch my review)
https://s.click.aliexpress.com/e/_oD60O0D
PCI POST ANALYZER
https://s.click.aliexpress.com/e/_c44XQKaj
FNIRSI 1014D SCOPE
https://s.click.aliexpress.com/e/_c2xAnnbv
NPS3010W 30V 10A PSU
https://s.click.aliexpress.com/e/_oDuHLdl
Nice-Power Dual 120V 3A PSU
https://s.click.aliexpress.com/e/_okGvYQ7
HR1520 Pro Short Killer
https://s.click.aliexpress.com/e/_c2RE3ToB
KSGER T12 Soldering Station
https://s.click.aliexpress.com/e/_omqBjWR
AIFEN-A9 PRO Soldering Station C115/C210/C245/C470
https://s.click.aliexpress.com/e/_ongFBEJ
C470 Soldering Iron & Tips
https://s.click.aliexpress.com/e/_opm1OND
https://s.click.aliexpress.com/e/_oDVNACf
QUICK 861DW
https://s.click.aliexpress.com/e/_ooW7QGR
PROS'KIT SS-331H
https://s.click.aliexpress.com/e/_omxB5H5
Sequre HT140 Hot Tweezers
https://s.click.aliexpress.com/e/_opH6KS3
KADA 853B Preheater
https://s.click.aliexpress.com/e/_opPOUgX
FNIRSI SWM-10 Spot Welder
https://s.click.aliexpress.com/e/_ooZey3t
INFIRAY P2 PRO IR CAMERA + MACRO LENS
https://s.click.aliexpress.com/e/_ootcxPv
TOOLTOP ET13S THERMAL CAMERA METER
https://s.click.aliexpress.com/e/_c4MMdodZ
ET13S MACRO LENS
https://s.click.aliexpress.com/e/_ol9d8hh
Trinocular Microscope
https://s.click.aliexpress.com/e/_okJictD
TOMLOV TM4K AF FLEX
https://s.click.aliexpress.com/e/_oBirts7
TL866 II+ PROGRAMMER
https://s.click.aliexpress.com/e/_c32XDS1D
NC-559-ASM FLUX
https://s.click.aliexpress.com/e/_onMlHRD
DESOLDER BRAID (I use size 8045)
https://s.click.aliexpress.com/e/_onhlLkx
HX-T100 SOLDER
https://s.click.aliexpress.com/e/_o2DHwJH
ESD-11 TWEEZERS
https://s.click.aliexpress.com/e/_om2F4w3
Learn Electronics Repair Discord
discord.gg/vam6YC8vwU
If you would like to support this channel
You can send donations
paypal.com/paypalme/youtubeLER
You can subscribe to Patreon
patreon.com/learnelectronicsrepair
Or you can click JOIN to become a channel member
Thank you
Richard
Here is an Actor DX Class D Amplifier, It is completely dead - does not start, no power... and no schematics! The fault isn't immediately obvious either. In fact everything seems OK but it just does not work. Yeah I know this one is an hour long but if you stick with it you may learn something new. And before you ask, yes I DO FIX IT but skip to the end and you will miss out on a lot of useful knowledge. This one is all about the journey, more than the result.
AliExpress Coupons
👉Click the link https://s.click.aliexpress.com/e/_Evbm72S or enter the search code [AYFU3C] on the AliExpress homepage. And don't forget to enjoy extra savings with the exclusive discount codes below.
🌟 Remember, these codes can be used on almost all items in selected countries on AliExpress. These codes are for USA buyers only until 1st August.
Discount Codes:
$2 off on orders over $18:【LEABC2】
$5 off on orders over $39:【LEABC5】
$10 off on orders over $69:【LEABC10】
$20 off on orders over $139:【LEABC20】
$23 off on orders over $169:【LEABC23】
$35 off on orders over $249:【LEABC35】
$55 off on orders over $379:【LEABC55】
$70 off on orders over $499:【LEABC70】
These codes valid WORLDWIDE until 1st August 2026
$3 off on orders over $29:【IFPH3QCH】
$6 off on orders over $59:【IFPUITII】
$9 off on orders over $89:【IFPKTYZF】
$16 off on orders over $149:【IFPKSB1Y】
$23 off on orders over $199:【IFPGVQ2I】
$30 off on orders over $269:【IFPMJL29】
$40 off on orders over $369:【IFPPCLK9】
$50 off on orders over $469:【IFPUTWNY】
$60 off on orders over $599:【IFPAF4GV】
$70 off on orders over $699:【IFPXSMK2】
For All Your PCB needs: free $5 discount coupon
pcbway.com/setinvite.aspx?inviteid=561767
Equipment used in my videos. These are affiliate links, you pay the normal price and I make a small commission.
DM40C
https://s.click.aliexpress.com/e/_c4q1dFy7
Aneng AN870 (Same as Zoyi ZT219)
https://s.click.aliexpress.com/e/_c2wcOv9N
Zoyi ZT-DQ02
https://s.click.aliexpress.com/e/_oB2u3sT
WinAPEX 268B Clamp Meter
https://s.click.aliexpress.com/e/_opJTjEP
VC480C+ MILLIOHM METER
https://s.click.aliexpress.com/e/_onE0FaJ
MESR-100 ESR METER
https://s.click.aliexpress.com/e/_oombcej
XC6013L CAPACITOR METER
https://s.click.aliexpress.com/e/_omnOxub
FNB58 USB ANALYZER
https://s.click.aliexpress.com/e/_c3hysTXt
4KV Breakdown Tester
https://s.click.aliexpress.com/e/_omKXmND
LED Backlight Tester
https://s.click.aliexpress.com/e/_oCRPzdl
NI-210SC Curve Tracer
https://s.click.aliexpress.com/e/_o2e0Par
NI210SJ (cheaper option but watch my review)
https://s.click.aliexpress.com/e/_oD60O0D
PCI POST ANALYZER
https://s.click.aliexpress.com/e/_c44XQKaj
FNIRSI 1014D SCOPE
https://s.click.aliexpress.com/e/_c2xAnnbv
NPS3010W 30V 10A PSU
https://s.click.aliexpress.com/e/_oDuHLdl
Nice-Power Dual 120V 3A PSU
https://s.click.aliexpress.com/e/_okGvYQ7
HR1520 Pro Short Killer
https://s.click.aliexpress.com/e/_c2RE3ToB
KSGER T12 Soldering Station
https://s.click.aliexpress.com/e/_omqBjWR
AIFEN-A9 PRO Soldering Station C115/C210/C245/C470
https://s.click.aliexpress.com/e/_ongFBEJ
C470 Soldering Iron & Tips
https://s.click.aliexpress.com/e/_opm1OND
https://s.click.aliexpress.com/e/_oDVNACf
QUICK 861DW
https://s.click.aliexpress.com/e/_ooW7QGR
PROS'KIT SS-331H
https://s.click.aliexpress.com/e/_omxB5H5
Sequre HT140 Hot Tweezers
https://s.click.aliexpress.com/e/_opH6KS3
KADA 853B Preheater
https://s.click.aliexpress.com/e/_opPOUgX
FNIRSI SWM-10 Spot Welder
https://s.click.aliexpress.com/e/_ooZey3t
INFIRAY P2 PRO IR CAMERA + MACRO LENS
https://s.click.aliexpress.com/e/_ootcxPv
TOOLTOP ET13S THERMAL CAMERA METER
https://s.click.aliexpress.com/e/_c4MMdodZ
ET13S MACRO LENS
https://s.click.aliexpress.com/e/_ol9d8hh
Trinocular Microscope
https://s.click.aliexpress.com/e/_okJictD
TOMLOV TM4K AF FLEX
https://s.click.aliexpress.com/e/_oBirts7
TL866 II+ PROGRAMMER
https://s.click.aliexpress.com/e/_c32XDS1D
NC-559-ASM FLUX
https://s.click.aliexpress.com/e/_onMlHRD
DESOLDER BRAID (I use size 8045)
https://s.click.aliexpress.com/e/_onhlLkx
HX-T100 SOLDER
https://s.click.aliexpress.com/e/_o2DHwJH
ESD-11 TWEEZERS
https://s.click.aliexpress.com/e/_om2F4w3
Learn Electronics Repair Discord
discord.gg/vam6YC8vwU
If you would like to support this channel
You can send donations
paypal.com/paypalme/youtubeLER
You can subscribe to Patreon
patreon.com/learnelectronicsrepair
Or you can click JOIN to become a channel member
Thank you
Richard
