GX-F200_supplement.pdf

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CONFIDENTIAL
GX-F200
SERVICE MANUAL
No. S2512GXF200SP
SUPPLEMENT
DIGITAL MOBILE PHONE
MODEL
GX-F200
(INTERNAL MODEL NAME: TQH2545B)
For Russia
• In the interests of user-safety the set should be restored to its
original condition and only parts identical to those specified
should be used.
• Caution
Risk of explosion if battery is replaced by an incorrect type,
dispose of used batteries according to the instruction.
This supplemental service manual describes changes in
PWB for the shown model, to be implemented as running
changes from the production in February.
For servicing, refer to this existing service manual:
SY432TQH2545B.
SHARP CORPORATION
This document has been published to be used
for after sales service only.
The contents are subject to change without notice.
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GX-F200
CONFIDENTIAL
GX-F200 SERVICE MANUAL (SY432TQH2545B) Page 2 - 44
• Confirm the differences with GX-F200 (Old P.W.Board).
(From page 2-43)
A
Is 3.6 V or more applied to BATT terminal (TP520)?
NO
Battery terminals are defective, connector terminal is dirty, or
soldering is improper.
YES
Is the voltage 1.2 V or lower on SENSE terminal (TP534)?
NO
The battery is defective or set improperly.
YES
Is there conduction through fuse (FS501)?
NO
Fuse (FS501) is blown.
YES
Is Flash memory (IC104) installed properly?
NO
Flash memory (IC104) is installed improperly.
YES
Are voltages of 3.00, 1.82, and 1.82 V applied to VINT
(TP173), VCORE (TP171), and VRTC (TP167) respectively?
NO
IC103 is defective.
YES
Are voltages of 3.00, and 1.80 V applied to VINT (IC703 pin
1), and VLCD (TP714) respectively?
NO
CN103, CN701, and FPC are defective or mounted improperly.
YES
Is the waveform of signals connected to X101 (32 kHz) cor-
rect?
Are R167, R174A, C176, X101, and IC106 good in appear-
ance and mounted properly?
NO
X101 (32 kHz oscillator), R167, R174A, and C176 are defective
or mounted improperly.
Or oscillating circuit of IC106 is defective.
YES
Is the triangular wave of 13 MHz sent from C833?
YES
B
NO
Is 2.9 V supplied from VTCXO (TP801)?
NO
Voltage Regulator (IC804) is defective.
YES
IC801 and peripheral circuits are defective.
B
CN103, CN701, FPC, IC704, IC103, IC104, and IC106 are
defective or mounted improperly.
NO
Is 13 MHz applied to 13MHzCLK (TP713)?
YES
Is “H“ supplied from CN704 pin 32?
NO
YES
CN103, CN701, FPC, IC103, IC104, and IC106 are defective or
mounted improperly.
Is 13 MHz applied to R179?
YES
CN103, CN701, and FPC are defective or mounted improperly.
NO
IC108 and IC106 are defective or mounted improperly.
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CONFIDENTIAL
GX-F200
GX-F200 SERVICE MANUAL (SY432TQH2545B) Page 2 - 47
• Confirm the differences with GX-F200 (Old P.W.Board).
3. No voice is heard from the earpiece.
Phone (Handset)
Are signals sent to TP734 and TP735?
YES
Internal receiver is defective (lead wire breakage, etc.).
Or the connector is loose or in poor contact.
NO
Is the signal sent to both ends of C147?
YES
L107, L108, C106, and C143 are defective or soldered
improperly.
NO
Is 0.5 V or more applied to R101 (IC103 pin 9 side)?
YES
IC103 is defective.
NO
Is 0.5 V or more applied to JK101 pin 5?
YES
Parts between socket JK101 pin 5 and IC103 pin 9 are defec-
tive.
NO
Is 0.5 V or more applied to JK101 pin 3?
YES
Socket JK101 is defective.
NO
Is 0.5 V or more applied to TP120?
YES
Parts between socket JK101 pin 3 and TP120 are defective.
NO
Is 2.4 - 2.6 V applied to TP176?
YES
R122 is defective.
NO
Is 2.4 - 2.6 V applied to R115 (IC103 pin 76 side)?
YES
R115 is defective. (Hands free kit mode is set.)
NO
IC103 is defective.
Hands free kit (Headset)
Replace the hands free kit. Is sound produced?
YES
The hands free kit is defective.
NO
Is signal sent to JK101 pin 4?
YES
Socket JK101 is defective, or the hands free kit is in a poor
contact with the socket plug.
NO
Is signal sent to TP121?
YES
L103 is defective.
NO
Is signal sent to both ends of C121?
YES
V102, C103, C105, and C107 are defective.
NO
Is signal sent to L124 (IC103 pin 60 side)?
YES
L124 is defective.
NO
Disconnect the hands free kit. Is voice heard in phone mode?
NO
IC103 or IC106 is defective.
YES
Is the voltage 0 V on R101 (IC103 pin 9 side)?
YES
IC103 is defective.
NO
Socket JK101 is defective.
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GX-F200
CONFIDENTIAL
GX-F200 SERVICE MANUAL (SY432TQH2545B) Page 2 - 49
• Confirm the differences with GX-F200 (Old P.W.Board).
6. Clock Settings are reset.
Is 1.6 V or more applied to TP167 with a battery in the phone?
NO
IC103 is defective.
YES
The back-up battery holder is installed improperly.
NO
Is 1.2 V or more applied to TP167 without a battery in the
phone?
NO
Is back-up battery holder properly installed to Main PWB?
YES
YES
• The remaining power of back-up battery is insufficient.
• Back-up battery is defective.
• Back-up battery holder is defective.
X101, R167, R174, R174A, and C176 are defective.
7. Speaker does not work.
* When ring tones sound, but keypad tones do not, “Keypad Tones” is set to Off.
* When keypad tones and Voice Recorder playback sound are available but ring tones are not, Ringer Volume is set to “Silent”.
* Ring tones sound according to “Ringer Volume” settings.
Are speaker terminals in contact with the land?
NO
The speaker is defective.
YES
Is the impedance between speaker terminals approx. 8 ohms?
NO
The speaker is defective.
YES
Is signal sent to TP727, TP728, or the speaker contact pad?
YES
The speaker is defective.
NO
Is signal sent to IC604 pins 17 and 18?
YES
Either of following parts are defective or soldered improperly:
· Between IC604 pin 18 and TP727.
· Between IC604 pin 17 and TP728.
NO
Is VBAT applied to IC604 pin 15?
NO
Parts between VBAT and IC604 pin 15 are defective or sol-
dered improperly.
YES
Is approx. 3V applied to IC604 pins 7 and 32?
NO
Parts between VINT and IC604 pins 7 and 32 are defective or
soldered improperly.
YES
Is signal sent to IC604 pin 12?
YES
C622 and R622 are defective.
Or IC604 is defective.
NO
IC604 or the control line to IC106 is defective.
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CONFIDENTIAL
GX-F200
GX-F200 SERVICE MANUAL (SY432TQH2545B) Page 2 - 50
• Confirm the differences with GX-F200 (Old P.W.Board).
8. Video/Voice Recorder playback is impossible.
* Playback volume of video and Voice Recorder depends on the setting in "Multimedia Volume".
Speaker
Are keypad tones and ring tones normal?
NO
Go to the section “Speaker does not work.” (see page 2-49)
YES
In Playback window, does playback start normally and the
capacity bar change?
NO
IC104 or IC106 is defective.
YES
Not defective.
YES
Is Multimedia Volume set to “Silent”?
YES
Cancel “Silent”. Is sound produced?
NO
NO
Is signal sent to CN701 pin 55?
YES
Parts between IC604 pin 13 and CN701 pin 55 are defective
or soldered improperly.
NO
Is signal sent to IC103 pins 91 and 107?
YES
Parts between IC103 pins 91 and 107 to CN101 pin 6 are
defective or soldered improperly.
NO
Is 3.0 V supplied from IC103 pins 90 and 106?
YES
IC103 is defective.
NO
Is 3.0 V supplied from TP110?
YES
R127, C164, and C123 are defective.
NO
IC103 is defective.
Hands free kit (Headset)
Replace the hands free kit.
Is the signal sent?
YES
Hands free kit is defective.
NO
In Playback window, does playback start normally and the
capacity bar change?
NO
IC104 or IC106 is defective.
YES
Not defective.
YES
Is Multimedia Volume set to “Silent”?
YES
Cancel “Silent”. Is sound produced?
NO
NO
Go to “Hands free kit (Headset)” in the section “No voice is
heard from the earpiece.” (see page 2-47)
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