Sharp VC-MH75HM - Page 28

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VC-MH75HM
Measuring
instrument
Mode
Cassette
Osiloscope
Playback
Self-recorded/Playback tape
Test point VIDEO OUT port
(75Ω terminal)
Specification Check place 1.
(1±0.2Vp-p)
VIDEO Colour Bar
ADJUSTMENT OF PB Level Confirmation
Measuring
instrument
Mode
Cassette
Osiloscope
Recorded/Playback
Self-recorded/Playback tape
Test point VIDEO OUT
VIDEO mono-sco
ADJUSTMENT OF S-PICUTRE Confirmation
Measuring
instrument
Mode
Cassette
Voltmeter
EE
Optional
Test point AUDIO OUT
Specification -3.8±2dBs
VIDEO Optional
HIFI Audio Circuit ADJUSTMENT
ADJUSTMENT OF EE Level Confirmation HIFI
Lch, Rch
AUDIO AUDIO IN at 1KHz -3.8dBs
Measuring
instrument
Mode
Cassette
Voltmeter
Playback
Alignment Tape VRO-CBFF
Test point AUDIO OUT
Specification -3.8±2dBs
VIDEO Optional
ADJUSTMENT OF PB Level Confrimation HIFI
Lch, Rch
AUDIO Optional
Measuring
instrument
Mode
Cassette
Voltmeter
Recorded/Playback
Self-recorded tape
Test point AUDIO OUT
Specification -3.8±2dBs
VIDEO Optional
ADJUSTMENT OF HIFI Lch, Rch Sela Rec/PB
Level Confirmation HIFI Lch, Rch
AUDIO AUDIO IN at 1KHz -3.8dBs
~ For this item, variable the tracking switch, and confirm
the changing of the normal mode.
1.0Vp-p
Measure the picture out-
put port using the 75Ω
terminal Osiloscope and
confirm the diagram same
as the left diagram.
~ V:200mV/div
H:20µsec/div
Receive the mono-sco.
Confirmation : make sure no black split at the mono-sco
picuture during the self-Rec PB when the S-PICTURE is
ON with the S-PICTURE ON/OFF,make sure the pinture
level at the wedge part is change.
(S-PICUTRE ON - about 260 line)
(S-PICUTRE OFF about 240 line)