Motorola SI22 Service Manual

M

Middle East & North Africa

Personal Communication Sector

GSM V300 Flip Assembly (C56-CLI Chassis Short)

Field Service Information

Our Reference: SI16_3_2004

Date: March 3, 2003

Pages (including this page): 4

Prepared by:

Mohamed Morsy
Customer Services Manager,
Middle East & North Africa


)

Classification:
Motorola Internal Information
Strictly released for Motorola Authorized Service Center Use only.

M

Middle East & North Africa

Date: March 3, 2003

Our Reference: SI16_3_2004

Product/System:

Subject:

Problem:

Service is aware of an issue identified during the 1st 200 NPI Analysis on V300. Some units, returned with a
customer complaint of “Can’t Switch Phone On”, “No Display Backlights”, or “Will not Charge Battery, were
found to draw excessive current (1.25mA) when plugged into an external power supply. Analysis revealed a
short, internal to the Flip Assembly, on the B+ Line to be the cause. The short occurs as a result of the CLI
Chassis (0788807N01) design not allowing the proper amount of clearance for C56, a filter cap on the B+
Line. After assembly, torque on the Flip Assembly causes the CLI Snubber to be pierced by C56, which
allows the capacitor to short to the CLI Chassis (0788807N01). This results in the radio drawing 1.25 amps,
as well as shorting out the backlights for both the Main and CLI Displays. See Figure 1.0 below.

V300

GSM V300 Flip Assembly (C56-CLI Chassis Short)

FIELD SERVICE INFORMATION

Damaged CLI Snubber at
the point of the short C56

Figure 1.0 - CLI Snubber damaged by C56

\

Classification:
Motorola Internal Information
Strictly released for Motorola Authorized Service Center Use only.