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A site where discontinualed schematic diagrams and back dated information can be found on discontinued radios tv's and any electronic equipment can be found. Newer manuals either Service and operating manuals. Radio amateurs should find this site a great source for ham radio equipment manuals. I will return to this site should I need information on any electrical equipment. priced easy to download in a PDF format and print pages need to undertake the repair.
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Quality scan of the original. All the detail necessary to troubleshoot, repair and adjust the unit. I'm sure I will be downloading more manuals in the future as the need arises.
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Exactly as described, a Service Manual complete with the schematics and PCB layout delivered in a timely manner. Many thanks for the great service.
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some of the writing is a bit blur but the part in the schmatic was great and i have fixed the machine thanks
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Well.. I'd searched for this manual and although I found many copies online I was pleased to find your website with a well balanced pricing system and easy to search and follow links. That together with the very quick response time was just what I was looking for.. being a very impatient tech.. ;-) I had the service manual in front of me within a short time.
Bookmarked.. and you can bet I will always come here first for my service & user manuals..
best regards
Ed(Tony) Foley
G7WHK
4-2. SCHEMATIC DIAGRAMS
4-2. SCHEMATIC DIAGRAMS
THIS NOTE IS COMMON FOR SCHEMATIC DIAGRAMS (In addition to this, the necessary note is printed in each block)
(For schematic diagrams) � All capacitors are in µF unless otherwise noted. pF : µ Link V or less are not indicated except for electrolytics µF. 50 and tantalums. � Chip resistors are 1/10 W unless otherwise noted. k�=1000 �, M�=1000 k�. � Caution when replacing chip parts. New parts must be attached after removal of chip. Be careful not to heat the minus side of tantalum capacitor, Because it is damaged by the heat. � Some chip part will be indicated as follows. Example C541 L452 22U 10UH TA A 2520 Kinds of capacitor Case Size External dimensions (mm)
Front of the lens
1. Connection
Pattern box Color bar chart
Pattern box PTB-450 J-6082-200-A or Small pattern box PTB-1450 J-6082-557-A
Pattern box
For PTB-450: J-6020-250-A For PTB-1450: J-6082-559-A
L = About 28 cm(PTB-450) L = About 12 cm(PTB-1450)
L
� Constants of resistors, capacitors, ICs and etc with XX indicate that they are not used. In such cases, the unused circuits may be indicated. � Parts with � differ according to the model/destination. Refer to the mount table for each function. � All variable and adjustable resistors have characteristic curve B, unless otherwise noted. � Signal name XEDIT � EDIT PB/XREC � PB/REC � 2: non flammable resistor � 5: fusible resistor � C: panel designation � A: B+ Line � B: B� Line � J : IN/OUT direction of (+,�) B LINE. � C: adjustment for repair. � A: not use circuit � Circled numbers refer to waveforms. (Measuring conditions voltage and waveform) � Voltages and waveforms are measured between the measurement points and ground when camera shoots color bar chart of pattern box. They are reference values and reference waveforms. (VOM of DC 10 M� input impedance is used) � Voltage values change depending upon input impedance of VOM used.)
Green
2. Adjust the distance so that the output waveform of Fig. a and the Fig. b can be obtain.
Cyan
H
Yellow
White Magenta Red
B A A=B/2 A Fig. a (Video output terminal output waveform) Electronic beam scanning frame CRT picture frame B Fig.b (Picture on monitor TV)
When indicating parts by reference number, please include the board name.
Note :
The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified.
Note :
Les composants identifiés par une marque 0 sont critiques pour la sécurité. Ne les remplacer que par une pièce portant le numéro spécifie.
DSC-L1 4-5
Blue
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