Hitachi VT-FX795A, Service Manual, Page: 14 / 69

3-2
RF INPUT
NG NG
OK
OK
OK
OK
Check SIF signal at pin
57 of IC451.
Check Audio signal at pin 6 of IC451.
Check Audio signal at pin 4 of IC301.
Check TU701.
LINE INPUT
Check Video signal at pin
69(or pin71) or pin 7
(or pin9)of IC451. Check A/V cable.
Check Audio signal at pin 7 of IC301.
OK
Check Audio signal at pin 96 of IC301.
OK
Check Audio signal at pin 80(or pin78 or pin2) of IC451.
OK
Check IC451.
Check Tape Interchangeability Alignment. (See page 4-5.)
Check Tape Interchangeability Alignment.
(See page 4-5.)
NG
Cleaning the Audio Control Erase Head. (See page 3-6.)
NG
Check ACE Head Assembly.
NG
Cleaning the Audio Control Erase Head. (See page 3-6.)
NG
Check ACE Head Assembly.
Check TU701 or A-OUT jack.
NG
Check IC451.
NG
Check IC301.
NG
Check IC301.
NG
NG
Audio problem 1 (No recording Normal Audio)
Audio problem 2 (No playback Normal Audio)