Toshiba T1600

Toshiba T1600

Preliminary Information
Release Year	1989
Leak Risk	Medium
Batteries	Yes, multiple rechargeable that are leaking
Mounting Technology	Through Hole, SMD, Sockets
Capacitor Types	Aluminum Electrolytic, Tantalum, Ceramic
Destructive Entry	No
Hardware Specifications
CPU	Intel 80286, 6/12MHz (switchable)
Storage	40 mb hard drive 3.5 inch floppy drive

The T1600 is a 286 laptop with an alps keyboard, dual batteries, 3.5" FDD, and HDD.

Known Issues

Smoke when plugged in

Causes

• Leaking C5 capacitor shorting resistors?

• 

  C5 on Power Supply board leaking

• 

  Resistors on bottom side of PCB under C5 didn't fair well

Solutions

• Clean and recap, possibly replace parts on bottom

Recommended Preventive Maintenance

Cause

• The T1600 contains two internal rechargeable batteries that may begin to leak and cause corrosive damage to PCBs

• 

  E1 is a through hold mounted 3 cell battery on the mainboard that wasn't yet leaking in my example but could possibly.

• 

  4 cell battery connected with cable had corrosion through the entire copper wire and white power beginning to leak from the shrink seal.

Disassembly Notes

The screen hinge plastic is very brittle and may break

Original Parts

Motherboard

Toshiba, FISYS3, 36T702816G1180

Capacitor Specifications and Footprint Information

RefDes	Qty	Capacitance	Voltage	Mount	Diameter/Size	Temp	Type	Brand	Series
C1	1	220uF	10V	Through Hole Radial	6.3mm	85C	Aluminum Electrolytic	Rubycon	CE W
C2	1	33uF	25V	Through Hole Radial	6.3mm	85C	Aluminum Electrolytic

Power Supply

Toshiba, FIVPS3, "IBI,M4V0", 36P12926G-01B

Capacitor Specifications and Footprint Information

RefDes	Qty	Capacitance	Voltage	Mount	Diameter/Size	Temp	Type	Brand	Series
C1, C2	2	3300uF	10V	Through Hole Radial	16mm	105C	Aluminum Electrolytic	Nippon Chemi-Con	SXF
C3	1	2200uF	16V	Through Hole Radial	16mm	105C	Aluminum Electrolytic	Nichicon	PL
C11	1	470uF	25V	Through Hole Radial	10mm	105C	Aluminum Electrolytic	Nippon Chemi-Con	SXF
C8, C9, C10, C45	4	220uF	10V	Through Hole Radial	6.3mm	85C	Aluminum Electrolytic	Marcon	CE-SE
C4	1	56uF	35V	Through Hole Radial	6.3mm	105C	Aluminum Electrolytic	Nippon Chemi-Con	SXF
C6	1	22uF	50V	Through Hole Radial	6.3mm	105C	Aluminum Electrolytic	Nichicon	PL
C5	1	150uF	35V	Through Hole Radial	10mm	105C	Aluminum Electrolytic	ELNA	RSH
C7	1	10uF	25V	Through Hole Radial	5mm		Aluminum Electrolytic	Nichicon

Resistors

RefDes	Quantity	Markings	Value	Footprint Imperial	Note	Tolerance
R142	1	473	47kΩ	0603	Case is green	0.5%?
R60	1	223	22kΩ	0603
R59	1	472	4.7kΩ	0603

Diodes

RefDes	Quantity	Markings	Forward Voltage
33	1	N u	0.5V

Replacement Parts

Motherboard

Capacitors

RefDes	Qty	Compatible Part Number	Order Links
C1	1	16YXJ220M6.3X11	Digikey	🔎	Mouser
C2	1	50YXM33MEFR6.3X11 / 860020472005	Digikey	🔎	Mouser
Full BOM			Digikey

Power Supply

Capacitors

RefDes	Qty	Compatible Part Number	Order Links
C1, C2	2	ELXY100ELL332ML20S / UHV1A332MHD	Digikey	🔎	Mouser
C3	1	UPM1C222MHD6	Digikey	🔎	Mouser
C11	1	ELXY250ETD471MJ20S / 860080474015	Digikey	🔎	Mouser
C8, C9, C10, C45	4	16YXJ220M6.3X11	Digikey	🔎	Mouser
C4	1	ELXY500ELL560MF15D / 860080573004	Digikey	🔎	Mouser
C6	1	UPM1J220MED	Digikey	🔎	Mouser
C5	1	UPM1J151MPD / 860040574005	Digikey	🔎	Mouser
C7	1	UPM1H100MDD / 860160472001	Digikey	🔎	Mouser
Full BOM			Digikey

Resistors

RefDes	Qty	Compatible Part Number	Order Links
R142	1	ERJ-PB3D4702V / ERJ-3EKF4702V	Digikey	🔎	Mouser
R60	1	RC0603FR-0722KL	Digikey	🔎	Mouser
R59	1	RC0603JR-074K7L	Digikey	🔎	Mouser
Full BOM			Digikey

Related Links

• Official Toshiba maintenance manual on Minus Zero Degrees (archived)
• Video on disassembly and capacitor information