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PowerBook 3400c and PowerBook G3 Service Source

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Apple's PowerBook 3400c/PowerBook G3 Service Source is the service manual for the PowerBook 3400c/180, 3400c/200 and 3400c/240 and for the first PowerBook G3, which uses the same case. The hosted copy has 210 pages and was last modified in August 1999. Page numbers below are PDF pages.[1] MacDat hosts an earlier 205-page edition (modified March 1998).[2]

Contents

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Chapter Sections (PDF pages)
Hot Issues Modem driver update (4-6), display cable gasket (7-8), battery gasket (8-9)
Basics Product overview (11-12), configurations (13-14), repair strategy (15-17), warranty (18), front, rear and logic board views (19-21), video connector pinout (22), battery information and handling (23-26), PC Card handling (27-29)
Specifications Processor, memory, disk storage, I/O interfaces, expansion, I/O devices, video, electrical, physical, environmental (31-43)
Troubleshooting Symptom charts: startup (46-47), power (48-52), video (53-57), sound (58), floppy drive (59-62), hard drive (63), CD-ROM (64-65), PC Card (66-67), infrared (68), peripherals (69-75), miscellaneous (76, 78); startup flowchart (77)
Take Apart Tools (80), screws (81), battery (83-84), floppy and CD-ROM drives (85-90), keyboard (91-95), RAM card (96-97), brightness and speaker grill with backup battery (98-100), clutch covers (101-103), palm rest (104-106), trackpad (107-110), sleep actuator (111-113), hard drive (114-117), power supply board (118-119), heatsink (120-121), Ethernet or Ethernet/modem card (122-123), logic board (124-128), CPU stiffener (129-135), infrared window and board (136-139), media bay LED and release (140-145), ADB and I/O doors (146-149), feet (150-151), bottom case (152-153), floppy drive mechanism (154-158), display assembly (159-163), display housing (164-168), latch (169-170), display frame (171-176), inverter board (177-181), display cable (182-187), display (188-190), clutch (191-192), bezel (193-194)
Additional Procedures Battery verification (196), power adapter (197), backup battery verification (198-199), PRAM and power manager reset (200-203), battery gasket installation (204-207)
Exploded View Bottom assembly (209), display assembly (210)

What it settles

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  • Some 3400 display cables worked loose from the logic board, leaving no picture or backlight; the cure is a brightness and speaker grill (922-2488) with a foam gasket over the connector (pp. 7-8).
  • Shutdowns on battery when the machine is jostled are cured by a battery bay gasket, kit 076-0706 (pp. 8-9, 204-207).
  • The backup battery is a 60 mAh rechargeable NiMH pack stuck to the underside of the brightness and speaker grill (pp. 41, 100).
  • The main battery is lithium-ion with an optional NiMH pack; a 3400 battery fits a 5300 or 190 but is not charged there (pp. 23-25).
  • There is no voltage test for the battery or the adapter; the battery is checked with its indicator lights (pp. 196-197).
  • The clutch-screw test with a floppy disk, and the warning that the display cable tears if its screw hole is misaligned with the clutch (pp. 162-163).

What this manual does not contain

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  • No schematics, no component-level parts list and no capacitor values.
  • Nothing on the PowerBook G3 Series (Wallstreet) and later models.

Pages that cite this document

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Download: PowerBook 3400c and PowerBook G3 Service Source.pdf (5.1 MB)

References

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  1. ↑ Apple Computer, PowerBook 3400c/PowerBook G3 Service Source, File:PowerBook 3400c and PowerBook G3 Service Source.pdf.
  2. ↑ MacDat documentation archive, powerbook_3400_g3-kanga.pdf (retrieved 2026-10-02).


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