Sony HCD-V818 Service Manual page 13

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IC502 OF VIDEO BOARD
IC502 of the VIDEO board consists of the former type and new type. The following table shows the differences between the two types.
Only spare parts for the new type IC502 are supplied.
Units using the former IC502 will not function when replaced with the new type without performing the following procedure.
Consequently, replace IC502 of units using the former type according to the following procedure.
Table of Differences
C407, 408
IC502
JW421, JW422
IC402
R413, 421, 422
X401
Replacing Procedure
1. Remove IC402.
2. Solder JW421 and JW422, or short-circuit with a lead wire, etc.
3. Replace IC502 with a new one.
How to Differentiate [VIDEO Board] (SIDE A)
IC505
TE
L 13942296513
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FORMER TYPE NEW TYPE
MOUNT NO MOUNT
M306200MC-302FP M306200MC-305FP
NO MOUNT MOUNT
MOUNT NO MOUNT
MOUNT NO MOUNT
MOUNT NO MOUNT
Those with IC402: FORMER TYPE
Those without: NEW TYPE
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