CPU/Sound Board component update kit

Sega/Stern CPU/Sound board component update or repair kit.

Compatible with 520-5136-XX CPU/Sound boards.

Many Sega Pinball machines had their manufacturing costs reduced
by omitting one of the sound channels from the CPU / Sound board.
The sound portion of the circuit board was left with one
amplifier "un-stuffed" with electronic components. The design
philosophy was that stereo sound wasn't necessary for operation
in busy street locations.

Now that many of these machines are in collector's homes,
stereo sound can again be appreciated by installing this kit.

GAME APPLICATIONS

1995-1996 Sega Pinball games up to and including
GOLDENEYE have two backbox speakers and a lower cabinet speaker,
and run in true stereo. All 3 audio amps are populated on the CPU
board and this update kit is not required. These games are:

1995-01 Mary Shelley's FRANKENSTEIN

1995-02 BAYWATCH

1995-07 BATMAN FOREVER

1995-10 APOLLO 13

1996-03 GOLDENEYE

1996-1998 Sega Pinball games from TWISTER
through to and including VIPER NIGHT DRIVIN' had only the left
side backbox speaker and the lower cabinet speaker. The additional speaker is available separately as listed below. Only two of
the 3 audio amp circuits are populated on the CPU board. These games are:


1996-04 TWISTER

1996-07 INDEPENDENCE DAY

1996-12 SPACE JAM

1997-03 STAR WARS TRILOGY

1997-06 THE LOST WORLD JURASSIC PARK

1997-09 X FILES

1997-12 STARSHIP TROOPERS

1998 VIPER NIGHT DRIVIN'

Late Sega and Stern Pinball games from LOST IN
SPACE onwards have two backbox speakers but they are effectively
mono as they are both connected to the left channel audio amp on
the CPU board. The right channel amplifier circuitry is
un-populated. These game are:

1998-05 LOST IN SPACE

1998-06 GOLDEN CUE

1998-08 GODZILLA

1999-02 SOUTH PARK

1999-09 Sega HARLEY DAVIDSON®

Kit includes:

• R19 - 100KΩ ¼W resistor
  
• R100/102 - 22KΩ ¼W resistor
  
• R101 - 470Ω ¼W resistor
  
• R103 - 1Ω ¼W resistor
  
• C100 - 35V 10µF radial electrolytic capacitor
  
• C101 - 25V 22µF radial electrolytic capacitor
  
• C102/104 - 25V 100µF radial electrolytic capacitors
  
• C103/105/106/C122 - 0.1µF @ 50 v axial ceramic capacitors
  
• D100/101 - 1N4004 diodes
  
• TDA2030A - Amplifier IC
  
• 535-5000-10 - Heatsink U101,2,3
  

Installation article is here

Reference:

• 520-5136-16