Panasonic NV-SJ400A, Service Manual

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Method:
Before replacing IC6001, MAIN C.B.A. and/or B6001:
1. Take a note that stored TV broadcasts channels.(Because , its
user may store TV broadcasts by manually other than "Auto
Tuning" operation and it is also erased.)
After replacing IC6001, MAIN C.B.A. and/or B6001:
1. Turn on the VCR.
2. Connect a jumper wire between TL7509 and TL7510 for 1 second
to reset IC6001.
After resetting IC6001:
1. Store TV broadcasts channels by Auto/Manual Tuning using the
On Screen Display according to note which taken before replacing
IC6001, MAIN C.B.A. and/or B6001.
2. Set the Direct Rec function to OFF using On Screen Display if
necessary. / (Because, Direct Rec function is set automatically to
ON after resetting IC6001.) / [Direct Rec Function] / OFF: Normally
set at this position. / ON: This settingenables Direct Rec. / AV1
Input(A1) becomes exclusive channel for Direct Rec.
3. Perform the PG SHIFTER ADJUSTMENT. / (Refer to the Electrical
Adjustment Procedures.)
Note:
1. It should be performed before tuning.
2. Do not cut off the power source during reset.
Fig. S1
3