Circuit Board Locations; Lithium Battery For Backup - Sony SVT-N72P Service Manual

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1-5. Circuit Board Locations

CP - 1 PWB Assembly

TM - 1 PWB

This unit is equipped with a backup battery(lithium

battery) to maintain the clock settings.

For replacement, be sure to use the specified part.

Replacement part: Z3901/CP-1 board

Part description:

MnO2-Li (lithium battery)

Part No.:

1-756-091-11

Replacement

1. Remove the cabinet and bottom cover. (Refer to

Section 1-2-1.Removing the Cabinet Parts)

2. Place the mechanism unit and CP-1 board up side

down as a whole on a flat surface with foil side of the

CP-1 board facing up. (Refer to Section 1-3.Tempo-

rarily Setting Up and Connecting CP-1 PWB Assem-

bly)

3. Unsolder the leads of the battery from the soldering

side of the CP-1 board and remove the battery.

Solder the backup battery in the reverse procedure of

removal.

1-6

TM - 2 PWB

PW-1 PWB

Soldered

CP-1 PWB assembly

Battery

SVT-N72P (E)

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