Apple PowerBook 200 series Service Manual
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Service Source
PowerBook 200 Series
PowerBook Duo 210, PowerBook Duo 230, PowerBook
Duo 250, PowerBook Duo 270c, PowerBook Duo 280,
PowerBook Duo 280c, PowerBook Duo Floppy Adapter
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Service Source
Basics
PowerBook 200 Series
Basics System Overview - 1
System Overview
PowerBook Duo System
The PowerBook Duo system
includes the following
products:
• PowerBook 200 Series
computer, shown at left
(PowerBook Duo 210/
230/250/270c/280/
Figure: PowerBook Duo 210/230/250/270c/280/280c
280c)
• PowerBook 2300 Series
computer (PowerBook
Duo 2300c)
Basics System Overview - 2
• PowerBook Duo Floppy
Adapter
• PowerBook Duo Dock/
Duo Dock II/Duo DockPlus
• PowerBook Duo MiniDock
This manual includes
information about the
PowerBook 200 Series
computers and the floppy
adapter.
For information about the
Duo Dock/Duo Dock II/
Duo Dock Plus
Duo Floppy
Adapter
Duo MiniDock
Duo 210/230
250/270c
280/280c/
PowerBook 2300 Series,
Duo Docks, or the Duo
MiniDock, refer to the
Basics System Overview - 3
appropriate PowerBook Duo
manual.
The floppy adapter shown at
left is replaced by whole
unit exchange. Ordering
information is included in
the Service Source parts
database.
Figure: Duo Floppy Adapter
Basics Self-Threading Screws - 4
Machine Screw
Self-Threading Screw
Self-Threading Screws
Caution:
installed self-threading
screws could damage the
PowerBook Duo. Thread the
screws properly and do not
overtighten them.
Caution:
to the circuitry, do not use
magnetic screwdrivers
when working on Apple
systems.
Improperly
To prevent damage
Basics Self-Threading Screws - 5
The PowerBook 200 systems
use both machine screws and
self-threading screws. Be
aware when you are
replacing a self-threading
screw, and follow these
guidelines:
• Never overtighten selfthreading screws.
• Before tightening down a
self-threading screw,
back the screw off
slightly to be sure it is
threaded properly.
Basics Self-Threading Screws - 6
Self-threading screws are
used to install the following
modules and replacement
parts:
• Hard drive
• Trackball assembly
• CPU stiffener and logic
board
CPU
Stiffener
Hard Drive
Trackball Assembly
Logic Board
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Service Source
Specifications
PowerBook 200 Series
Specifications Processor - 1
Processor
CPU 210
CPU 230/250/270c
CPU 280/280c
Coprocessor (270c Only)
Motorola 68030 microprocessor
25 MHz
Motorola 68030 microprocessor
33 MHz
Motorola 68LC040 microprocessor
66/33 MHz
Motorola 68882 floating-point coprocessor
Specifications Processor - 2
Addressing
32-bit internal registers
32-bit address/data bus supports 4 GB of address with justified
8-bit, 16-bit, and 32-bit data transactions
Specifications Memory - 3
Memory
RAM 210/230/250
RAM 270c
RAM 280/280c
ROM
4 MB RAM soldered on the logic board
Expandable to 24 MB
Requires 70 ns or faster RAM chips
4 MB RAM soldered on the logic board
Expandable to 32 MB
Requires 70 ns or faster RAM chips
4 MB RAM soldered on the logic board
Expandable to 40 MB
Requires 70 ns or faster RAM chips
1 MB
Specifications Memory - 4
PRAM
Clock/Calendar
256 bytes of parameter memory
CMOS custom chip supported by long-life (up to 2 years) lithium
battery
Specifications Disk Storage - 5
Disk Storage
Floppy Drive
Hard Drive
External 1.4 MB floppy drive (same drive is used with
PowerBook 100)
Requires Duo Floppy Adapter or Duo MiniDock
2.5-in., internal, 17 mm high
Specifications I/O Interfaces - 6
I/O Interfaces
Docking Connector
Serial
Modem
152-pin processor-direct slot (PDS connector for attaching
expansion devices
32-bit expansion bus
RS-422 serial port; mini DIN-8 connector
Optional internal modem/telephone jack
RJ-11 domestic; mini DIN-8 international
Specifications I/O Devices - 7
I/O Devices
Keyboard
Trackball
Microphone
Built-in standard Apple keyboard
63 keys domestic; 64 keys ISO
Caps-locked LED
Soft power-on switch
2.5 mm travel, 18 mm vertical and horizontal pitch
Two-level tilt adjustment
19 mm diameter, dua button
Apple Desktop Bus (ADB) interface
Built-in electret, omnidirectional microphone
Specifications Sound and Video - 8
Sound and Video
Sound Generator
Video Display 210/ 230
Apple sound chip provides four-voice/8-bit sound, sampled at 11
or 22 kHz
Monophonic sound in and sound out
9 in. (229 mm) diagonal screen
Flat-panel, film-compensated supertwist nematic (FSTN) liquid
crystal display
1, 2, and 4 bits per pixel
16 level grayscale at 4 bits per pixel
640 lines by 400 pixels
CCFL on-demand backlight
Adjustable brightness and contrast controls
Specifications Sound and Video - 9
Video Display 250
Video Display 270c
Video Display 280
9 in. (229 mm) diagonal screen
Flat-panel, color, active-matrix, liquid crystal display
CCFL on-demand backlight
640 lines by 400 pixels; 16 shades of gray
9 in. (229 mm) diagonal screen
Flat-panel, color active-matrix, liquid crystal display
CCFL on-demand backlight
640 lines by 480 pixels; 8 bits; 256 colors
9 in. (229 mm) diagonal screen
Backlit, active-matrix, grayscale display
640 lines by 400 pixels; 16 shades of gray
Specifications Sound and Video - 10
Video Display 280c
8.4 in. diagonal, backlit, active matrix color display
640 lines by 480 pixels for 256 colors, or 640 lines by 400
pixels for thousands of colors
Specifications Electrical - 11
Electrical
Main Battery 210/ 230
Main Battery 250/ 270c
NiMH (nickel-metal-hydride), 0.95 Ah
Approximately 2-4 hours of usage before recharging (depending
upon use)
Recharge time: approximately 2 hours
500 power cycles capacity
NiMH (nickel-metal-hydride), 1.5 Ah
Approximately 2-3 hours of usage before recharging (depending
upon use)
Recharge time: approximately 2 hours
500 power cycles capacity
Uses 4/5 A size battery cells
Specifications Electrical - 12
Main Battery 280/ 280c
PRAM Battery
Power Adapter
NiMH (nickel-metal-hydride), 1.6 Ah
Approximately 2-3 hours of usage before recharging (depending
upon use)
Recharge time: approximately 2 hours
500 power cycles capacity
3 V lithium backup battery
500 power cycles capacity
Input: 85-270 VAC line voltage, 47-63 Hz
Output: 24 VDC, 1.04 A
Can be used anywhere in the world with the appropriate power
cord
Specifications Physical - 13
Physical
Dimensions 210/230/ 250/280
Dimensions 270c/ 280c
Weight 210/230/250/ 280
Weight 270c/280c
Height: 1.4 in. (36 mm)
Width: 8.5 in. (216 mm)
Depth: 10.9 in. (277 mm)
Height: 1.5 in. (36 mm)
Width: 8.5 in. (216 mm)
Depth: 10.9 in. (277 mm)
4.25 lb. (1.9 kg) with battery
4.8 lb. (2.1 kg) with battery
Specifications Environmental - 14
Environmental
Operating Temperature
Storage Temperature
Relative Humidity
Operating Altitude
50–104° F (10–40° C)
-40 to 116° F (-40 to 47° C)
20–95% noncondensing
0–15,000 ft. (0–4722 m)
Specifications Other - 15
Other
Express Modem
SCSI Disk Adapter
Internal 14,400-baud modem with fax send/receive capability at
9600 baud
300–14,400 bps data transmission rates
2400/4800/7200/9600 bps transmission rates
Full duplex operation; asynchronous or framed modes
Error correction: V.42 compliance (MNP2-4)
Data compression: V.42bis (4 to 1 compression) and MNP-5 (2
to 1 compression)
Requires 300K of system RAM
Built-in support for internal modem when in docking systems
Enables connection between PowerBook Duo computer and desktop
Macintosh (Duo system appears as a hard drive on desktop)
Requires Duo MiniDock
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Service Source
Troubleshooting
PowerBook 200 Series
Troubleshooting General/ - 2
General
The Symptom Charts included in this chapter will help you
diagnose specific symptoms related to your product. Because cures
are listed on the charts in the order of most likely solution, try
the first cure first. Verify whether or not the product continues to
exhibit the symptom. If the symptom persists, try the next cure.
(
Note:
If you have replaced a module, reinstall the original
module before you proceed to the next cure.)
If you are not sure what the problem is, or if the Symptom Charts
do not resolve the problem, refer to the Flowchart for the product
family.
For additional assistance, contact Apple Technical Support.
Troubleshooting Power Manager Reset/ - 3
Power Manager Reset
If a unit crashes or experiences power problems, reset the power
manager chip by pressing the rear power switch for 30-45
seconds.
If resetting the power manager chip does not solve the problem,
reset the code for the power manager chip by removing all power
sources and letting the unit sit for 10 minutes. (Take out the
battery and disconnect the AC adapter and the internal backup
battery.) This forces the PowerBook Duo to reload the power
manager code from the system software.
Troubleshooting Symptom Charts/Startup - 4
Symptom Charts
Startup
RAM failure occurs
(eight-tone error
chord sequence
sounds after startup
chord)
Hardware failure
occurs (four-tone
error chord sequence
sounds after startup
chord)
1 Check RAM expansion card connection.
2 Replace RAM expansion card.
3 Replace logic board.
Note:
When replacing the logic board, check that the EMI clips
are securely attached to the CPU stiffener. The “CPU Stiffener”
topic in Take Apart helps you locate and identify the two EMI
clips. If both clips are not secure, replace the CPU stiffener.
1 Disconnect hard drive data cable and reboot system. If
startup sequence is normal, reseat cable and retest.
2 Replace hard drive.
3 If the system is connected to an external floppy drive,
disconnect drive and reboot system. If startup sequence is
Troubleshooting Symptom Charts/Startup
normal, reseat cable and retest.
(Continued)
- 5
Startup
1 Replace floppy drive.
2 Replace logic board.
Note:
are securely attached to the CPU stiffener. The “CPU Stiffener”
topic in Take Apart helps you locate and identify the two EMI clips.
If both clips are not secure, replace the CPU stiffener.
(Continued)
When replacing the logic board, check that the EMI clips
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