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M0401 AppleColor High-Res RGB monitor capacitor list?

Posted by: JC8080 on 2023-09-10 08:06:43

Does anyone have a capacitor list for the M0401 AppleColor High-Resolution RGB monitor? I found a thread with a list for the later M1297 revision, but I was not able to find anything for the M0401.

Posted by: treellama on 2023-09-10 15:09:25

Following 🙂

Posted by: danny.gonzalez.0861@gmai on 2024-01-15 12:19:17

I am currently going over my monitor and have the PSU and D - Board listed. Please note that this is not 100% verified but is to my best knowledge is accurate. I should be getting the first batch of capacitors in a few days.

D - Board

Capacitor Location	Capacitance Value	Voltage Rating	Dia. (mm)	Height (mm)	Lead Spacing (mm)	Notes
C547	1uf	160v	8mm	14mm	2.5mm
C524	470uf	35v	10mm	20mm	5mm
C569	100uf	25v* 35v	8mm	10mm	2.5mm	UPGD to 35v
C529	100uf	35v	8mm	10mm	2.5mm
C570	100uf	25v* 35v	8mm	10mm	2.5mm	UPGD to 35v
C591	100uf	25v* 35v	8mm	10mm	2.5mm	UPGD to 35v
C572	100uf	16v	6mm	10mm	2mm
C546	100uf	16v	6mm	10mm	2mm
C592	100uf	16v	6mm	10mm	2mm
C594	2.2uf	50v	5mm	10mm	2mm
C595	2.2uf	50v	5mm	10mm	2mm
C517	2.2uf	50v	5mm	10mm	2mm
C599	4.7uf	50v	5mm	10mm	2mm
C593	4.7uf	50v	5mm	10mm	2mm
C588	4.7uf	50v	5mm	10mm	2mm
C516	4.7uf	50v	5mm	10mm	2mm
C526	4.7uf	50v	5mm	10mm	2mm
C597	.47uf	50v	5mm	10mm	2mm
C520	1uf	50v	5mm	10mm	2mm
C523	1uf	50v	5mm	10mm	2mm
C501	1uf	50v	5mm	10mm	2mm
C505	1uf	50v	5mm	10mm	2mm
C506	1uf	50v	5mm	10mm	2mm
C510	1uf	50v	5mm	10mm	2mm
C530	10uf	50v	5mm	10mm	2mm
C584	10uf	50v	5mm	10mm	2mm
C531	470uf	16v	10mm	13mm	5mm
C519	22uf	25v	5mm	10mm	2mm	UPGD to 50v
C511	3.3uf	50v	5mm	10mm	2mm
C513	3.3uf	16v	5mm	10mm	2mm	UPGD to 50v
C586	47uf	16v	5mm	10mm	2mm
C587	47uf	16v	5mm	10mm	2mm
C568	470uf	35v	10mm	20mm	5mm
C581	22uf	250v	12mm	23mm	5mm
C575	33uf	160v	15mm	25mm	6mm
C512	4.7uf (BP)	50v	6mm	10mm	2mm	Bi-Polar Cap

PSU:

Capacitor Location	Capacitance Value	Voltage Rating	Dia. (mm)	Height (mm)	Lead Spacing (mm)	Notes
C107	470uf	400v	35mm	40mm	10mm	( - \| ) Leads
C108	4.7uf	350v	11mm	25mm	6mm
C109	4.7uf	350v	11mm	25mm	6mm
C113	22uf	25v	5mm	10mm	2mm	UPGD to 50v
C215	22uf	25v	5mm	10mm	2mm	UPGD to 50v
C209	47uf	25v	5mm	10mm	2mm	UPGD to 50v
C210	47uf	25v	5mm	10mm	2mm	UPGD to 50v
C216	4.7uf	100v	5mm	10mm	2mm
C203	100uf	160v	16mm	26mm	7mm
C205	33uf	160v	12mm	20mm	5mm
C206	22uf	100v	8mm	10mm	3mm
C204	470uf	100v	11mm	30mm	7mm
C218	100uf	25v	6mm	10mm	2mm	UPGD to 35v
C219	100uf	25v	6mm	10mm	2mm	UPGD to 35v

Hope this helps!

Daniel G.

Posted by: JC8080 on 2024-01-17 18:23:12

Great, this is very helpful, please update if you find any errors in your list. Are you recapping any of the other boards?

Why are you recapping? Preemptively, or to try to fix an issue? Mine works fine but is a bit dimmer than I think it should be, but it's been so many years since I used one of these I really don't remember how bright they should be.

Posted by: danny.gonzalez.0861@gmai on 2024-01-17 18:56:42

Great, this is very helpful, please update if you find any errors in your list. Are you recapping any of the other boards?

Why are you recapping? Preemptively, or to try to fix an issue? Mine works fine but is a bit dimmer than I think it should be, but it's been so many years since I used one of these I really don't remember how bright they should be.

I am glad it was helpful.

I will let you know the progress and if I find and issues.

I was having, what I can describe only as contrast issues that, when the monitor was warm, would fix itself. Figured that was a perfect indication of failing capacitors. I could use my EGR to determine which are good or bad but I figure for the $40 in capacitors, it's a great investment in the monitors future.

Hope all is well!

Posted by: danny.gonzalez.0861@gmai on 2024-01-18 15:57:20

Here is the main filter cap on the G-board (power supply). As you can see, she's a beauty 🤣🤣

Posted by: JC8080 on 2024-01-19 06:35:45

That cap looks a bit rough. I heard recently, maybe from Adrian's Digital Basement, that a bulging appearance is normal for those large caps with the plastic bit covering the top of the cap, and it is not necessarily a sign of leakage. That one is bulging quite significantly though, it would definitely concern me. When I have recapped IIsi PSUs I have always replaced the large caps even though people say it is not necessary. I figure as long as I'm in there, and already ordering parts, I may as well do it for peace of mind.

Posted by: danny.gonzalez.0861@gmai on 2024-01-22 13:49:38

Well, everything on the list was indeed accurate. I can share what I bought from Mouser with the exception of the filter cap. Although it was the correct size and value, the lead spacing was off by just enough that I drank an entire beer until I was able to figure that one out 😉 but in the end it did indeed work out flawlessly.

I found a few cracked potentiometers so my geometry is off until I care enough to take it apart and/or find the values online.

Also, note that I didn't recap the rear AV board as I didn't see a reason to. Maybe someone can add that last part for the world.

A lot of the caps I removed were Rudycon caps which aren't bad but they were 85c rated and I changed them to 105c high life rating so hopefully the next person to do this will be after I'm dead.

I will post the Mouser list the moment I get home.

Thanks!

Posted by: JC8080 on 2024-01-23 10:29:34

Thank you, this is great info!

Posted by: danny.gonzalez.0861@gmai on 2024-01-29 12:38:45

Hello everyone,

Sorry for the late response with the Mouser list. Got a horrible cold and am still going through it.

In any case, here is the PDF you can use to order the parts from Mouser or cross them to your preferred vendor.

Hope this helps!

Posted by: fthain on 2024-06-07 21:42:46

Here's a list of aluminium electrolytic capacitors from one of my 13" AppleColor High Res RGB monitors. This list covers three boards: video color board B, deflection board D and PSU. The other two boards, C and J, do not have such capacitors. This unit was manufactured in September 1990 according to the sticker on the back. Note that this particular unit is marked M0401X not M0401.

M0401X AppleColor High Resolution RGB Monitor

Designator	uF	Volts	⌀ x H (mm)	Lead pitch (in.)

Video Color Board "B"

C712	100	100	13x20	0.2	
C722	100	100	13x20	0.2	
C732	100	100	13x20	0.2	
C911	100	25	7x12	0.2	
C921	100	25	7x12	0.2	
C931	100	25	7x12	0.2	
C950	100	25	7x12	0.2	
C903	100	16	7x12	0.2	
C703	22	250	13x24	0.2	
C714	10	100	7x12	0.2	
C724	10	100	7x12	0.2	
C734	10	100	7x12	0.2	
C711	10	50	5x12	0.2	
C721	10	50	5x12	0.2	
C731	10	50	5x12	0.2	

Deflection Board "D"

C524	470	35	10x21	0.2	
C568	470	35	10x21	0.2	
C531	470	16	10x17	0.2	
C529	100	35	8x12	0.2	
C569	100	25	7x12	0.2	
C570	100	25	7x12	0.2	
C591	100	25	7x12	0.2	
C546	100	16	7x12	0.2	
C572	100	16	7x12	0.2	
C592	100	16	7x12	0.2	
C586	47	16	5x12	0.2	
C587	47	16	5x12	0.2	
C575	33	160	17x2	0.3	
C513	33	16	5x12	0.2	
C581	22	250	13x24	0.2	
C519	22	25	5x12	0.2	
C530	10	50	5x12	0.2	
C512	4.7	50	7x12	0.2	Bi-polar
C510	4.7	50	5x12	0.2	
C516	4.7	50	5x12	0.2	
C526	4.7	50	5x12	0.2	
C588	4.7	50	5x12	0.2	
C599	4.7	50	5x12	0.2	
C511	3.3	50	5x12	0.2	
C517	2.2	50	5x12	0.2	
C594	2.2	50	5x12	0.2	
C595	2.2	50	5x12	0.2	
C547	1	160	8x15	0.2	105 deg.C
C501	1	50	5x12	0.2	
C505	1	50	5x12	0.2	
C506	1	50	5x12	0.2	
C520	1	50	5x12	0.2	
C523	1	50	5x12	0.2	
C597	0.47	50	5x12	0.2	

PSU board

C11	330	400	36x34	0.4	105 deg.C Snap-in terminals
C34	220	160	18x36	0.3	105 deg.C
C33	220	100	17x26	0.3	105 deg.C
C36	100	160	17x26	0.3	105 deg.C
C35	100	100	13x21	0.2	105 deg.C
C81	100	25	7x12	0.2	105 deg.C
C82	100	25	7x12	0.2	105 deg.C
C26	82	400	23x41	0.4	105 deg.C
C16	47	50	8x15	0.2	105 deg.C
C12	22	50	7x14	0.2	105 deg.C

Posted by: Andres99907 on 2024-09-15 12:54:38

M0401X AppleColor High Resolution RGB Monitor

Designator    uF    Volts    ⌀ x H (mm)    Lead pitch (in.)

Video Color Board "B"

C712    100    100    13x20    0.2   
C722    100    100    13x20    0.2   
C732    100    100    13x20    0.2   
C911    100    25    7x12    0.2   
C921    100    25    7x12    0.2   
C931    100    25    7x12    0.2   
C950    100    25    7x12    0.2   
C903    100    16    7x12    0.2   
C703    22    250    13x24    0.2   
C714    10    100    7x12    0.2   
C724    10    100    7x12    0.2   
C734    10    100    7x12    0.2   
C711    10    50    5x12    0.2   
C721    10    50    5x12    0.2   
C731    10    50    5x12    0.2   

Deflection Board "D"

C524    470    35    10x21    0.2   
C568    470    35    10x21    0.2   
C531    470    16    10x17    0.2   
C529    100    35    8x12    0.2   
C569    100    25    7x12    0.2   
C570    100    25    7x12    0.2   
C591    100    25    7x12    0.2   
C546    100    16    7x12    0.2   
C572    100    16    7x12    0.2   
C592    100    16    7x12    0.2   
C586    47    16    5x12    0.2   
C587    47    16    5x12    0.2   
C575    33    160    17x2    0.3   
C513    33    16    5x12    0.2   
C581    22    250    13x24    0.2   
C519    22    25    5x12    0.2   
C530    10    50    5x12    0.2   
C512    4.7    50    7x12    0.2    Bi-polar
C510    4.7    50    5x12    0.2   
C516    4.7    50    5x12    0.2   
C526    4.7    50    5x12    0.2   
C588    4.7    50    5x12    0.2   
C599    4.7    50    5x12    0.2   
C511    3.3    50    5x12    0.2   
C517    2.2    50    5x12    0.2   
C594    2.2    50    5x12    0.2   
C595    2.2    50    5x12    0.2   
C547    1    160    8x15    0.2    105 deg.C
C501    1    50    5x12    0.2   
C505    1    50    5x12    0.2   
C506    1    50    5x12    0.2   
C520    1    50    5x12    0.2   
C523    1    50    5x12    0.2   
C597    0.47    50    5x12    0.2   

PSU board

C11    330    400    36x34    0.4    105 deg.C Snap-in terminals
C34    220    160    18x36    0.3    105 deg.C
C33    220    100    17x26    0.3    105 deg.C
C36    100    160    17x26    0.3    105 deg.C
C35    100    100    13x21    0.2    105 deg.C
C81    100    25    7x12    0.2    105 deg.C
C82    100    25    7x12    0.2    105 deg.C
C26    82    400    23x41    0.4    105 deg.C
C16    47    50    8x15    0.2    105 deg.C
C12    22    50    7x14    0.2    105 deg.C

I am also looking for information on some capacitors, especially the C713, C723, or C733, data I have not been able to find 🙁, I do not know if they are really capacitors either, in this picture you can see this green component, it is the one that is damaged and I want to replace it.

Posted by: AlexADB on 2025-03-24 10:16:50

Hi all, did replacing the capacitors do any improvements on your monitors? It is particularly interesting if the size shift while the picture changes quickly from dark to light (e.g. opening a large finder window) is resolved by replacing any of the capacitors.

Posted by: croissantking on 2025-03-24 17:36:35

I have an M1297 that I’ve been putting off recapping because it’s a big job. But I’m working through all my old gear bit by bit, so I’ll get to it.

The display works well aside from having a bit of keystone/pincushion distortion. It’ll be interesting to see if a recap sorts that as well as any other improvements.

Posted by: danny.gonzalez.0861@gmai on 2025-03-25 07:10:16

My monitor worked flawlessly after the recap for about 6+ months but I now have wavy video so I am assuming that the large filter cap I ordered didn't stand the test of time.

My older daughter started soccer and now my life revolves around practice and games so I haven't had a chance to get back inside the monitor to see what might have failed.

Recapping in my opinion is mostly for longevity sake of the electronics as caps can fail in time but my monitor was working before the service so I didn't do it to fix any particular issue.

I did purchase a second unit so that I can swap boards until i find the culprit and can start narrowing down the issue, just need time on my side to finish the job.

Posted by: jmacz on 2025-03-25 22:44:28

Hi all, did replacing the capacitors do any improvements on your monitors? It is particularly interesting if the size shift while the picture changes quickly from dark to light (e.g. opening a large finder window) is resolved by replacing any of the capacitors.

I believe that might be cracked solder joints on the various cable connectors usually. Reflowing all of them cleared that up for me on some monitors.

I have had strange geometry distortion (not part of config, like only one corner has a weird curve) be resolved by recapping.

The bigger issue is when the fly back starts going bad. Can’t fix that unless you find a donor that has a working one. My M1212 13” RGB seems to have a bad fly back that is manifesting itself as weird screen shaking accompanied by sudden bursts in brightness and resizing of the screen. Bursts as in the screen is twice as bright and magnified/distorted.

Posted by: AlexADB on 2025-03-26 04:03:35

Thanks for your replies! Good hint, to reflow the connector solder joints @jmacz I have four of these monitors now in total. At least one of the newer models as a parts machine. Let me check if I can get a hold its flyback. One of the monitors is great but slightly rotated image. None of the Apple manuals is talking about that issue. I loosened the neckboard screws but still could not rotate the element with the copper coils. Maybe I have to cut loose that white glue/paint around it?

Posted by: ObeyDaleks on 2025-03-26 05:15:19

Depending on the CRT, they are usually secured either with a weak glue, or some rubber stoppers. If it's just glue like the SE CRTs, you can just grab the deflection coil firmly, push forward (toward the screen) and twist. Make sure you don't put any sideways pressure on the neck since it's weaker than the main body.