GX20
2 – 50
CONFIDENTIAL
5. Vibrator does not operate.
6. Clock is reset.
Vibrator terminals contacting the land?
Dirt or foreign matter detedted at vibrator terminals and the
land?
Vibrator deformed.
(Remove foreign matter or replace parts.)
Check the vibrator during operation.
3 V square waves output between vibrator terminals in syn-
chronization with vibration pattern?
Vibrator defective.
VBAT Voltage applied to IC302 5 pin?
Soldering of IC302 defective.
Signals ourput at IC302 1pin in synchronization with vibration
pattern?
IC302 defective.
Signals output from IC103 19pin in synchronization with vibra-
tion pattern?
CN201, Relay FPC_A and CN305 defective.
Jumper (IC103 5 pin to VINT line), C141 and C142 defective.
Voltage of approx. 3 V applied to IC103 7 pin?
Are appearance and mounting of jumper (IC103 5 pin to VINT
line), C141 and C142 properly given?
IC103 or the control signal line to IC104 defective.
More than 2.5 V output at TP202 when a battery is fitted in the
set?
Regulator IC201 defective.
More than 2.5 V output at TP203 when a battery is fitted in the
set?
Voltage detecter IC204 or Q201 defective.
Defective mounting of back-up battery holder.
More than 1.5 V output at TP203 when a battery is not fitted in
the set?
Back-up battery holder properly mounted in Relay FPC_B?
• Insufficient back-up battery capacity.
• Back-up battery defective.
• Back-up battery holder defective.
• Relay FPC_B disconnected or CN202 defective.
More than 1.2 V output at TP205 when a battery is not fitted in
the set?
Regulator IC203 defective.
IC104 defective.
NO
YES
YES
NO
NO
YES
YES
NO
YES
NO
NO
NO
YES
YES
NO
YES
NO
YES
NO
NO
YES
YES
NO
YES
Содержание GX20
Страница 38: ...GX20 2 32 CONFIDENTIAL Figure 64 Contact points Figure 65 Turning power on Points Push ...
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