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How much better the site would be, if it was a book. I know I'm not the only one that thinks this way (e.g. Bill Waterson said he prefers actual paper of his comics to a computer screen), but yet websites continually seem to post article after article, after blogpost, after blogpost, of which I will not take the time to click through. Websites are infinitely inferior to books, for any significant amount of text. This is why twitter (and not booker) is so successful. Am I wrong in thinking this, or are the search engines skewing how much people actually read these ``blog'' websites?} I'm going to purchase a book they mention:\\ \textbf{Computer Monitor Troubleshooting and Repair} - Joe Desposito and Kevin Garabedian +\includegraphics[scale=0.4]{../pics/DSCN1864.JPG} +\captionof{figure}{Computer Monitor Troubleshooting and Repair} + which cost me a whole \$6.00 from a used book store online. While the HP book was helpful, it is for a B\&W CRT lacking any colour related circuitry, and I need something with more practical repair advice. The HP tech book, is also dry, which means it assumes you understand a lot of the mechanics already. +After reading about 80 pages of the computer monitor repair book (recommended as I said by repairfaq.org) I can say it is a good book, and would recommend it to others. it lacks any concrete material on TV Signal encode/decoding, it being a book on computer monitors (which have RGB signals split up by default, via the VGA connector), it remains a straightforward and down to earth book on CRTs. An obsolete gem. + +Here's an example page, for those readers interested in a preview: + +\includegraphics[scale=0.4]{../pics/DSCN1865.JPG} +\captionof{figure}{Second Page. Right from the start the book is easy to read and approachable.} + + + \section{References} \textbf{Books} diff --git a/Commodore_1902A_Monitor/docs/4.toc b/Commodore_1902A_Monitor/docs/4.toc index 137496a..a012fe2 100644 --- a/Commodore_1902A_Monitor/docs/4.toc +++ b/Commodore_1902A_Monitor/docs/4.toc @@ -1,3 +1,3 @@ \contentsline {section}{\numberline {1}Overview}{1} -\contentsline {section}{\numberline {2}Work Log}{2} -\contentsline {section}{\numberline {3}References}{3} +\contentsline {section}{\numberline {2}Work Log}{1} +\contentsline {section}{\numberline {3}References}{4} diff --git a/Commodore_1902A_Monitor/docs/5.aux b/Commodore_1902A_Monitor/docs/5.aux new file mode 100644 index 0000000..10c0e29 --- /dev/null +++ b/Commodore_1902A_Monitor/docs/5.aux @@ -0,0 +1,11 @@ +\relax +\@writefile{lof}{\contentsline {figure}{\numberline {1}{\ignorespaces Commodore 1902A 14'' CRT Monitor\relax }}{1}} +\@writefile{toc}{\contentsline {section}{\numberline {1}Overview}{1}} +\@writefile{toc}{\contentsline {section}{\numberline {2}Work Log}{2}} +\@writefile{toc}{\contentsline {subsection}{\numberline {2.1}We require more resources... 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lines 88--90 +[]\OT1/cmr/m/n/10.95 Retro Game Me-chan-ics Ex-plained: + [] + +[6] (./5.aux) ) +Here is how much of TeX's memory you used: + 2588 strings out of 495020 + 41320 string characters out of 6181323 + 94798 words of memory out of 5000000 + 5793 multiletter control sequences out of 15000+600000 + 8809 words of font info for 31 fonts, out of 8000000 for 9000 + 14 hyphenation exceptions out of 8191 + 38i,8n,38p,902b,194s stack positions out of 5000i,500n,10000p,200000b,80000s + +Output written on 5.pdf (6 pages, 833158 bytes). +PDF statistics: + 56 PDF objects out of 1000 (max. 8388607) + 35 compressed objects within 1 object stream + 0 named destinations out of 1000 (max. 500000) + 26 words of extra memory for PDF output out of 10000 (max. 10000000) + diff --git a/Commodore_1902A_Monitor/docs/5.pdf b/Commodore_1902A_Monitor/docs/5.pdf new file mode 100644 index 0000000..d9ff15a Binary files /dev/null and b/Commodore_1902A_Monitor/docs/5.pdf differ diff --git a/Commodore_1902A_Monitor/docs/5.tex b/Commodore_1902A_Monitor/docs/5.tex new file mode 100644 index 0000000..55753cb --- /dev/null +++ b/Commodore_1902A_Monitor/docs/5.tex @@ -0,0 +1,99 @@ + +\documentclass[11pt]{article} +%Gummi|065|=) +\usepackage{graphicx} +\usepackage{caption} +\title{\textbf{Commodore 1902A Repair}} +\author{Steak Electronics} +\date{} +\begin{document} + +%\maketitle +\begin{center} + \textbf{Commodore 1902A Repair} + \end{center} +%\vspace{0.2in} + +\includegraphics[scale=0.4]{../pics/DSCN1699.JPG} +\captionof{figure}{Commodore 1902A 14'' CRT Monitor} + +\section{Overview} +The goal is to repair an old Commodore computer monitor. This particular monitor, the 1902A has three inputs. One for composite, one for S-Video (essentially connected to same circuitry as composite) and one for RGBI mode. + +Currently, the monitor has errors on composite input / S-video. There are no errors on the RGBI input. + +\tableofcontents + +\section{Work Log} +I picked up an old HP TV service manual (6945A) for this project. I am not knowledgable about televisions, but the more I read, the more I think I can handle this. I have also the manual for the monitor, though it is quite a bit sparse, comparably. + +\vspace{0.2in} + + +Quite a bit of the Commodore 1902A TV circuitry (H sync, V sync, etc) is in a few ICs, according to the schematic. + +\vspace{0.2in} + +The waveforms in the Commodore manual were created with a (standard?) NTSC test signal, the \textbf{10 bar gated rainbow pattern signal}. I am currently researching how to generate that myself, without forking out the cash for a video tester (Cheapest I saw the other day was \$70. I wouldn't pay more than \$20. + +\vspace{0.2in} + +From a brief search, most people have only setup rough test signals with uCs that do either NTSC or PAL, but not necessarily the full 10 bar gated test signal. Instead only a passable working signal, to verify video output, seems to be par for the course. I might be out of luck! + +\vspace{0.2in} + +\subsection{We require more resources... (Starcraft 2 reference)} + +I reviewed this page: + +http://www.repairfaq.org/sam/monfaq.htm\#monsugref + +Which many will recognize as the gargantuan repair faq website.\footnote{I find text heavy websites like this, quite incomprehensible, to be honest. How much better the site would be, if it was a book. I know I'm not the only one that thinks this way (e.g. Bill Waterson said he prefers actual paper of his comics to a computer screen), but yet websites continually seem to post article after article, after blogpost, after blogpost, of which I will not take the time to click through. Websites are infinitely inferior to books, for any significant amount of text. This is why twitter (and not booker) is so successful. Am I wrong in thinking this, or are the search engines skewing how much people actually read these ``blog'' websites?} I'm going to purchase a book they mention:\\ +\textbf{Computer Monitor Troubleshooting and Repair} - Joe Desposito and Kevin Garabedian + +\includegraphics[scale=0.4]{../pics/DSCN1864.JPG} +\captionof{figure}{Computer Monitor Troubleshooting and Repair} + +which cost me a whole \$6.00 from a used book store online. While the HP book was helpful, it is for a B\&W CRT lacking any colour related circuitry, and I need something with more practical repair advice. The HP tech book, is also dry, which means it assumes you understand a lot of the mechanics already. + +After reading about 80 pages of the computer monitor repair book (recommended as I said by repairfaq.org) I can say it is a good book, and would recommend it to others. it lacks any concrete material on TV Signal encode/decoding, it being a book on computer monitors (which have RGB signals split up by default, via the VGA connector), it remains a straightforward and down to earth book on CRTs. An obsolete gem. + +Here's an example page, for those readers interested in a preview: + +\includegraphics[scale=0.4]{../pics/DSCN1865.JPG} +\captionof{figure}{Second Page. Right from the start the book is easy to read and approachable.} + +\subsection{Errors on the Schematic} +After reviewing the Commodore 1902A service manual, I noticed that the layout design doesn't match up 1:1 with the schematic... On the same service manual! Is this an honest mistake, or a reluctance to give repairmen the real schematic, or a limitation of time and money? Who knows. In any case, I found an intial error looking at the early Composite signal input. + +\includegraphics[scale=0.4]{../pics/DSCN1866.JPG} +\captionof{figure}{Schematic lists ICs with numbers that...} + + +\includegraphics[scale=1.67]{../pics/DSCN1868.JPG} +\captionof{figure}{Differ on the actual layout diagram. Repairman beware!} + + + +\section{References} + +\textbf{Books} +\begin{itemize} +\item Art of Electronics 3rd Edition (Horowitz, Hill): Appendix I - Television. + \item Computer Monitor Troubleshooting and Repair - Joe Desposito and Kevin Garabedian + \end{itemize} + +\textbf{Video}\footnote{Disclaimer: Youtube is bad} +\begin{itemize} +\item Retro Game Mechanics Explained: https://www.youtube.com/channel/UCwRqWnW5ZkVaP\_lZF7caZ-g + \\(the SNES section has some well produced CRT video explanations). +\end{itemize} + + + + + + + +\end{document} + diff --git a/Commodore_1902A_Monitor/docs/5.tex~ b/Commodore_1902A_Monitor/docs/5.tex~ new file mode 100644 index 0000000..24c283c --- /dev/null +++ b/Commodore_1902A_Monitor/docs/5.tex~ @@ -0,0 +1,89 @@ + +\documentclass[11pt]{article} +%Gummi|065|=) +\usepackage{graphicx} +\usepackage{caption} +\title{\textbf{Commodore 1902A Repair}} +\author{Steak Electronics} +\date{} +\begin{document} + +%\maketitle +\begin{center} + \textbf{Commodore 1902A Repair} + \end{center} +%\vspace{0.2in} + +\includegraphics[scale=0.4]{../pics/DSCN1699.JPG} +\captionof{figure}{Commodore 1902A 14'' CRT Monitor} + +\section{Overview} +The goal is to repair an old Commodore computer monitor. This particular monitor, the 1902A has three inputs. One for composite, one for S-Video (essentially connected to same circuitry as composite) and one for RGBI mode. + +Currently, the monitor has errors on composite input / S-video. There are no errors on the RGBI input. + +\tableofcontents + +\section{Work Log} +I picked up an old HP TV service manual (6945A) for this project. I am not knowledgable about televisions, but the more I read, the more I think I can handle this. I have also the manual for the monitor, though it is quite a bit sparse, comparably. + +\vspace{0.2in} + + +Quite a bit of the Commodore 1902A TV circuitry (H sync, V sync, etc) is in a few ICs, according to the schematic. + +\vspace{0.2in} + +The waveforms in the Commodore manual were created with a (standard?) NTSC test signal, the \textbf{10 bar gated rainbow pattern signal}. I am currently researching how to generate that myself, without forking out the cash for a video tester (Cheapest I saw the other day was \$70. I wouldn't pay more than \$20. + +\vspace{0.2in} + +From a brief search, most people have only setup rough test signals with uCs that do either NTSC or PAL, but not necessarily the full 10 bar gated test signal. Instead only a passable working signal, to verify video output, seems to be par for the course. I might be out of luck! + +\vspace{0.2in} + +\subsection{We require more resources... (Starcraft 2 reference)} + +I reviewed this page: + +http://www.repairfaq.org/sam/monfaq.htm\#monsugref + +Which many will recognize as the gargantuan repair faq website.\footnote{I find text heavy websites like this, quite incomprehensible, to be honest. How much better the site would be, if it was a book. I know I'm not the only one that thinks this way (e.g. Bill Waterson said he prefers actual paper of his comics to a computer screen), but yet websites continually seem to post article after article, after blogpost, after blogpost, of which I will not take the time to click through. Websites are infinitely inferior to books, for any significant amount of text. This is why twitter (and not booker) is so successful. Am I wrong in thinking this, or are the search engines skewing how much people actually read these ``blog'' websites?} I'm going to purchase a book they mention:\\ +\textbf{Computer Monitor Troubleshooting and Repair} - Joe Desposito and Kevin Garabedian + +\includegraphics[scale=0.4]{../pics/DSCN1864.JPG} +\captionof{figure}{Computer Monitor Troubleshooting and Repair} + +which cost me a whole \$6.00 from a used book store online. While the HP book was helpful, it is for a B\&W CRT lacking any colour related circuitry, and I need something with more practical repair advice. The HP tech book, is also dry, which means it assumes you understand a lot of the mechanics already. + +After reading about 80 pages of the computer monitor repair book (recommended as I said by repairfaq.org) I can say it is a good book, and would recommend it to others. it lacks any concrete material on TV Signal encode/decoding, it being a book on computer monitors (which have RGB signals split up by default, via the VGA connector), it remains a straightforward and down to earth book on CRTs. An obsolete gem. + +Here's an example page, for those readers interested in a preview: + +\includegraphics[scale=0.4]{../pics/DSCN1865.JPG} +\captionof{figure}{Second Page. Right from the start the book is easy to read and approachable.} + + + +\section{References} + +\textbf{Books} +\begin{itemize} +\item Art of Electronics 3rd Edition (Horowitz, Hill): Appendix I - Television. + \item Computer Monitor Troubleshooting and Repair - Joe Desposito and Kevin Garabedian + \end{itemize} + +\textbf{Video}\footnote{Disclaimer: Youtube is bad} +\begin{itemize} +\item Retro Game Mechanics Explained: https://www.youtube.com/channel/UCwRqWnW5ZkVaP\_lZF7caZ-g + \\(the SNES section has some well produced CRT video explanations). +\end{itemize} + + + + + + + +\end{document} + diff --git a/Commodore_1902A_Monitor/docs/5.toc b/Commodore_1902A_Monitor/docs/5.toc new file mode 100644 index 0000000..4001519 --- /dev/null +++ b/Commodore_1902A_Monitor/docs/5.toc @@ -0,0 +1,5 @@ +\contentsline {section}{\numberline {1}Overview}{1} +\contentsline {section}{\numberline {2}Work Log}{2} +\contentsline {subsection}{\numberline {2.1}We require more resources... 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a/Commodore_1902A_Monitor/docs/6.tex b/Commodore_1902A_Monitor/docs/6.tex new file mode 100644 index 0000000..55753cb --- /dev/null +++ b/Commodore_1902A_Monitor/docs/6.tex @@ -0,0 +1,99 @@ + +\documentclass[11pt]{article} +%Gummi|065|=) +\usepackage{graphicx} +\usepackage{caption} +\title{\textbf{Commodore 1902A Repair}} +\author{Steak Electronics} +\date{} +\begin{document} + +%\maketitle +\begin{center} + \textbf{Commodore 1902A Repair} + \end{center} +%\vspace{0.2in} + +\includegraphics[scale=0.4]{../pics/DSCN1699.JPG} +\captionof{figure}{Commodore 1902A 14'' CRT Monitor} + +\section{Overview} +The goal is to repair an old Commodore computer monitor. This particular monitor, the 1902A has three inputs. One for composite, one for S-Video (essentially connected to same circuitry as composite) and one for RGBI mode. + +Currently, the monitor has errors on composite input / S-video. There are no errors on the RGBI input. + +\tableofcontents + +\section{Work Log} +I picked up an old HP TV service manual (6945A) for this project. I am not knowledgable about televisions, but the more I read, the more I think I can handle this. I have also the manual for the monitor, though it is quite a bit sparse, comparably. + +\vspace{0.2in} + + +Quite a bit of the Commodore 1902A TV circuitry (H sync, V sync, etc) is in a few ICs, according to the schematic. + +\vspace{0.2in} + +The waveforms in the Commodore manual were created with a (standard?) NTSC test signal, the \textbf{10 bar gated rainbow pattern signal}. I am currently researching how to generate that myself, without forking out the cash for a video tester (Cheapest I saw the other day was \$70. I wouldn't pay more than \$20. + +\vspace{0.2in} + +From a brief search, most people have only setup rough test signals with uCs that do either NTSC or PAL, but not necessarily the full 10 bar gated test signal. Instead only a passable working signal, to verify video output, seems to be par for the course. I might be out of luck! + +\vspace{0.2in} + +\subsection{We require more resources... (Starcraft 2 reference)} + +I reviewed this page: + +http://www.repairfaq.org/sam/monfaq.htm\#monsugref + +Which many will recognize as the gargantuan repair faq website.\footnote{I find text heavy websites like this, quite incomprehensible, to be honest. How much better the site would be, if it was a book. I know I'm not the only one that thinks this way (e.g. Bill Waterson said he prefers actual paper of his comics to a computer screen), but yet websites continually seem to post article after article, after blogpost, after blogpost, of which I will not take the time to click through. Websites are infinitely inferior to books, for any significant amount of text. This is why twitter (and not booker) is so successful. Am I wrong in thinking this, or are the search engines skewing how much people actually read these ``blog'' websites?} I'm going to purchase a book they mention:\\ +\textbf{Computer Monitor Troubleshooting and Repair} - Joe Desposito and Kevin Garabedian + +\includegraphics[scale=0.4]{../pics/DSCN1864.JPG} +\captionof{figure}{Computer Monitor Troubleshooting and Repair} + +which cost me a whole \$6.00 from a used book store online. While the HP book was helpful, it is for a B\&W CRT lacking any colour related circuitry, and I need something with more practical repair advice. The HP tech book, is also dry, which means it assumes you understand a lot of the mechanics already. + +After reading about 80 pages of the computer monitor repair book (recommended as I said by repairfaq.org) I can say it is a good book, and would recommend it to others. it lacks any concrete material on TV Signal encode/decoding, it being a book on computer monitors (which have RGB signals split up by default, via the VGA connector), it remains a straightforward and down to earth book on CRTs. An obsolete gem. + +Here's an example page, for those readers interested in a preview: + +\includegraphics[scale=0.4]{../pics/DSCN1865.JPG} +\captionof{figure}{Second Page. Right from the start the book is easy to read and approachable.} + +\subsection{Errors on the Schematic} +After reviewing the Commodore 1902A service manual, I noticed that the layout design doesn't match up 1:1 with the schematic... On the same service manual! Is this an honest mistake, or a reluctance to give repairmen the real schematic, or a limitation of time and money? Who knows. In any case, I found an intial error looking at the early Composite signal input. + +\includegraphics[scale=0.4]{../pics/DSCN1866.JPG} +\captionof{figure}{Schematic lists ICs with numbers that...} + + +\includegraphics[scale=1.67]{../pics/DSCN1868.JPG} +\captionof{figure}{Differ on the actual layout diagram. Repairman beware!} + + + +\section{References} + +\textbf{Books} +\begin{itemize} +\item Art of Electronics 3rd Edition (Horowitz, Hill): Appendix I - Television. + \item Computer Monitor Troubleshooting and Repair - Joe Desposito and Kevin Garabedian + \end{itemize} + +\textbf{Video}\footnote{Disclaimer: Youtube is bad} +\begin{itemize} +\item Retro Game Mechanics Explained: https://www.youtube.com/channel/UCwRqWnW5ZkVaP\_lZF7caZ-g + \\(the SNES section has some well produced CRT video explanations). +\end{itemize} + + + + + + + +\end{document} + diff --git a/Commodore_1902A_Monitor/docs/6.toc b/Commodore_1902A_Monitor/docs/6.toc new file mode 100644 index 0000000..4001519 --- /dev/null +++ b/Commodore_1902A_Monitor/docs/6.toc @@ -0,0 +1,5 @@ +\contentsline {section}{\numberline {1}Overview}{1} +\contentsline {section}{\numberline {2}Work Log}{2} +\contentsline {subsection}{\numberline {2.1}We require more resources... (Starcraft 2 reference)}{2} +\contentsline {subsection}{\numberline {2.2}Errors on the Schematic}{4} +\contentsline {section}{\numberline {3}References}{6} diff --git a/Commodore_1902A_Monitor/pics/DSCN1864.JPG b/Commodore_1902A_Monitor/pics/DSCN1864.JPG new file mode 100644 index 0000000..d90ea89 Binary files /dev/null and b/Commodore_1902A_Monitor/pics/DSCN1864.JPG differ diff --git a/Commodore_1902A_Monitor/pics/DSCN1865.JPG b/Commodore_1902A_Monitor/pics/DSCN1865.JPG new file mode 100644 index 0000000..5e7247d Binary files /dev/null and b/Commodore_1902A_Monitor/pics/DSCN1865.JPG differ diff --git a/Commodore_1902A_Monitor/pics/DSCN1866.JPG b/Commodore_1902A_Monitor/pics/DSCN1866.JPG new file mode 100644 index 0000000..99cfb2b Binary files /dev/null and b/Commodore_1902A_Monitor/pics/DSCN1866.JPG differ diff --git a/Commodore_1902A_Monitor/pics/DSCN1867.JPG b/Commodore_1902A_Monitor/pics/DSCN1867.JPG new file mode 100644 index 0000000..d29842a Binary files /dev/null and b/Commodore_1902A_Monitor/pics/DSCN1867.JPG differ diff --git a/Commodore_1902A_Monitor/pics/DSCN1868.JPG b/Commodore_1902A_Monitor/pics/DSCN1868.JPG new file mode 100644 index 0000000..e0d53eb Binary files /dev/null and b/Commodore_1902A_Monitor/pics/DSCN1868.JPG differ diff --git a/Fan_Greasing/pics/DSCN1859.JPG b/Fan_Greasing/pics/DSCN1859.JPG new file mode 100644 index 0000000..9eb7112 Binary files /dev/null and b/Fan_Greasing/pics/DSCN1859.JPG differ diff --git a/Fan_Greasing/pics/DSCN1860.JPG b/Fan_Greasing/pics/DSCN1860.JPG new file mode 100644 index 0000000..d74bfe2 Binary files /dev/null and b/Fan_Greasing/pics/DSCN1860.JPG differ diff --git a/Fan_Greasing/pics/DSCN1861.JPG b/Fan_Greasing/pics/DSCN1861.JPG new file mode 100644 index 0000000..d664bed Binary files /dev/null and b/Fan_Greasing/pics/DSCN1861.JPG differ diff --git a/Fan_Greasing/pics/DSCN1862.JPG b/Fan_Greasing/pics/DSCN1862.JPG new file mode 100644 index 0000000..c87a78f Binary files /dev/null and b/Fan_Greasing/pics/DSCN1862.JPG differ diff --git a/Phantom3Standard_BadCamera/pics/DSCN1824.JPG b/Phantom3Standard_BadCamera/pics/DSCN1824.JPG new file mode 100644 index 0000000..60f239b Binary files /dev/null and b/Phantom3Standard_BadCamera/pics/DSCN1824.JPG differ diff --git a/README.md b/README.md index daa7fab..66578f4 100644 --- a/README.md +++ b/README.md @@ -21,3 +21,15 @@ Taping together two ends of cassette tape with tape, tweezers, and patience. Tweezers and Patience help. Flush cut pliers help too. Easy. I had to manually reel the scotch tape repaired part across the center, but otherwise, it was strong enough to play the whole tape. Video included. + + + +May + Commodore 1902A Monitor +CRT repair. + +June + Fan Greasing +Fan stopped spinning. Turned out just needed some sewing machine oil on the shaft of the motor. + +