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Technical Guide - Seiko Y911A Technical Manual

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PARTS CATALOGUE
Remarks:
15 Winding stem 0351 880
The type of winding stem is determined based on the design of cases. Check the case number and refer to
"PULSAR Casing Parts Catalogue" to choose a corresponding winding stem.

TECHNICAL GUIDE

• The explanation here is only for the particular points of Cal. Y911A.
• For the repairing, checking and measuring procedures, refer to the "TECHNICAL GUIDE, GENERAL
INSTRUCTIONS".
I. STRUCTURE OF CIRCUIT BLOCK
Reset (AC) terminal
II. REMARKS ON REMOVING AND INSTALLING THE BATTERY
• To remove the battery, first, peel off the system reset comment
sheet, and then, remove the battery clamp.
• After installing the battery, be sure to attach the sheet at the
position indicated in the illustration at right.
• After the battery is replaced with a new one, or after the battery
is re-installed following the repairing procedures, be sure to
short-circuit the AC terminal of the circuit block and the circuit
block cover with conductive tweezers to reset the circuit as
illustrated at right.
Input terminal (+)
Buzzer lead terminal
C-MOS-IC
Input terminal (–)
Coil output terminal
Upconverter coil
System reset comment sheet
Battery clamp screw
AC terminal
Circuit block cover
Tweezers
Cal. Y911A
Cal. Y911A
Crystal unit
Post
5

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