JVC MX-GA8 - Timer Functions: Recording Timer; Setting the Recording Timer; Recording Timer Operation Steps

(No.MB080)1-27
5.3 Tape : COMMON
Main board
JIC01(HA12237F) B+,PIN NO16
Voltage normal?
Main board
JIC01(HA12237F) pin 3,4,27,28
input signal normal?
Main board
JIC01(HA12237F) PIN5,26
output signal normal?
Check the Main board
EIC01(TDA7442D) Function IC
Check the MAIN board
PIC02, PU210
Check the MAIN board
CW109, CW110
Check the MAIN board
JE01L,JE01R,JR03L,JR03R
No
No
No
Yes
Yes
Yes