Canon Cat (V777)

For more information, see this article's corresponding Wikipedia page: Canon_Cat.

This device is in the WorkNeeded:OriginalParts category because it was flagged as missing information on the original parts. It may have replacement parts listed but those cannot be assumed to be identical to the originals. If you have a list of the original parts, please feel free to add them by copying the relevant table from EditorsToolbox:Tables

This device is in the WorkNeeded:ReplacementParts category because it was flagged as missing information on replacement parts. If it has the original parts listed you may be able to search for replacements using the parametric searches available from parts distributors. If you have or make a list of replacement parts, please feel free to add them by copying the relevant table from EditorsToolbox:Tables

Preliminary Information
Leak Risk	RIFA caps in power supply pose risk of sudden failure. Other PSU caps have been known to leak as well.
Batteries	CR2023
Mounting Technology	Through Hole
Destructive Entry	No
Hardware Specifications
CPU	Motorola 68000 @ 5 MHz
Memory Capacity	256 KB
Storage	3½-inch 256 KB floppy disk drive (proprietary cable)
Graphics	9-inch (229 mm) black-and-white monitor
Sound	Piezo speaker
Power Requirements
Input Voltage	115/230 VAC
Current (Amps)	+5VDC: 2.5A max +12VDC: 2.0A max -12VDC: 0.1A max
Power Connector	Molex P/N 09-50-3031

Known Issues

Symptom or Problem Encountered

Floppy disk drive is a proprietary model not interchangeable with any other known computer. Drive head mounting brackets have almost certainly failed. Damage will occur to drive if used with a broken bracket. Recommend inspecting drive and disconnecting to prevent use until plastic bracket is replaced.

Disassembly Notes

Four Phillips screws on back to remove monitor shroud.

Four Phillips screws on bottom to remove motherboard assembly. (Does not require prior removal of monitor shroud.)

Six Phillips screws to remove metal shroud from motherboard assembly.

The power supply may have its serial number and build date on a paper label attached to capacitor C17. It will probably not be possible to remove this paper label without damaging it. Instead, after desoldering C17 cut the plastic shroud away from the capacitor and trim to the dimensions of the paper label. Attach the label to the outside of the PSU with double-sided tape for easy reference.

The power supply will have an important warning about a live heatsink attached to capacitor C6. It is not possible to remove this paper label without damaging it. Instead, after desoldering C6 cut the plastic shroud away from the capacitor and trim to the dimensions of the warning label. Attach the label to the outside of the PSU with double-sided tape for so that it can be easily seen.

Original Parts

Motherboard NH1-0300-035

Capacitor Specifications and Footprint Information

RefDes	Qty	Capacitance	Voltage	Mount	Diameter/Size	Height	Lead Spacing	Temp	Type	Brand	Series
C94	1	1 µF	50	Radial
C76	1	1 µF	50	Radial						Panasonic
C80	1	17 µF	25	Radial
C92	1	33 µF	16	Radial
C13	1	47 µF	10	Radial						Nichicon
C90	1	47 µF	25	Radial						Rubycon
C79	1	100 µF	16	Radial
C77	1	100 µF	16	Radial						Rubycon
C2	1	100 µF	25	Radial
C72	1	100 µF	25	Radial						Rubycon
C73	1	100 µF	25	Radial						Rubycon
C1	1	220 µF	25	Radial						Rubycon

Power Supply board ASTEC AC8151-01

Datasheet (courtesy Bitsavers)

Inside the ASTEC AC8151-01 power supply

The table below was compiled from power supply Serial #: M286537666, with a date code of 1987-09.

Capacitor Specifications and Footprint Information

RefDes	Qty	Capacitance	Voltage	Mount	Diameter/Size	Height	Lead Spacing	Temp	Type	Brand	Series	Note
C1, C11	2	0.01 µF	250VAC	Film	17mm L x 5mm D	10mm	16mm OR 10mm	110° C	SAFETY X2	RIFA	PME 271 M
C3, C4	2	0.0047 µF	250VAC	Film	13mm L x 4mm D	10mm	16mm OR 10mm	100° C	SAFETY Y	RIFA	PME 271 Y
C6	1	100 µF	250	Radial	18mm	42mm	8mm	105° C		CE?	GM	Label: "Caution. Hazard of Electric Shock - Heatsink is Live. Disconnect Power Supply before Servise [sic]"
C7	1	100 µF	250	Radial	18mm	42mm	8mm	105° C		CE?	GM
C8	1	220 µF	10	Radial	10mm	22mm	5mm	105° C		Nippon Chemi-Con	RX	Heatshrink tubing
C15, C16	2	1000 µF	16	Radial	16mm	26mm	5mm OR 8mm	105° C		Nippon Chemi-Con	SXA	Leaking
C17	1	1000 µF	16	Radial	16mm	26mm	5mm OR 8mm	105° C		Nippon Chemi-Con	SXA	Leaking; labeled with power supply serial # and date code.
C18	1	330 µF	16	Radial	10mm	21mm	5mm	105° C		Nippon Chemi-Con	SXA
C19	1	330 µF	16	Radial	10mm	16mm	5mm	85° C		Nippon Chemi-Con	SM
C20	1	470 µF	16	Radial	12mm	13mm	5mm OR 8mm	85° C		Acess

CRT Analog Board Matsushita PANP 30901

Capacitor Specifications and Footprint Information

RefDes	Qty	Capacitance	Voltage	Mount	Diameter/Size	Height	Lead Spacing	Temp	Type	Brand	Series	Notes
C404	1	470 µF	16	Radial	10mm	13mm		85° C		Nippon Chemi-Con	SU
C406	1	10 µF	16	Radial	5mm	12mm		85° C		Nippon Chemi-Con	SU
C407	1	33 µF	6.3	Radial	5mm	12mm		85° C		Nippon Chemi-Con	SU
C408	1	220 µF	16	Radial	8mm	12mm		85° C		Nippon Chemi-Con	SU
C411	1	2200 µF	16	Radial	13mm	25mm		85° C		Nippon Chemi-Con	CE SU
C413	1	47 µF	16	Radial
C505	1	4.7 µF	25	Radial	5mm	12mm		85° C		Nippon Chemi-Con	SU
C512	1	330 µF	16	Radial	8mm	12mm		85° C		Nippon Chemi-Con	SU
C514	1	1000 µF	16	Radial	10mm	20mm		85° C		Nippon Chemi-Con		Glued to C513
C516	1	10 µF	350	Radial	13mm	25mm		85° C		Nippon Chemi-Con	CE S
C517	1	100 µF	50	Radial	14mm	28mm
C518	1	220 µF	63	Radial	10mm	20mm		85° C		Nippon Chemi-Con
C519	1	1 µF	350	Radial	8mm	25mm		85° C		Nippon Chemi-Con
C801	1	3300 µF	16	Radial	15mm	25mm		85° C		Nippon Chemi-Con	CE SU	Elevated 10mm to clear C505 & C404

Replacement Parts

Basic PCB Name

Capacitors

RefDes	Qty	Compatible Part Number	Order Links
C19	1	860020373011 / 16YXF330MFFCT78X11.5	Digikey Mouser LCSC
C20	1	860020374012 / 16YXJ470MFFCT78X11.5	Digikey Mouser LCSC

If parts are not available or different selection is preferred, you can use the values in the Original Parts section to perform a parametric search.