Read Sharp VC-MH834 (serv.man2) Service Manual online
32
VC-M314HM
VC-MH834HM
VC-MH834HM
Measuring
instrument
instrument
Mode
Cassette
Oscilloscope
Playback
Self-recorded/Playback tape
Test point
VIDEO OUT port
(75
(75
Ω
terminal)
Specification
Check place 1.
(1
(1
±
0.2Vp-p)
VIDEO
Colour Bar
ADJUSTMENT OF PB Level Confirmation
1.0Vp-p
Measure the picture out-
put port using the 75
put port using the 75
Ω
ter-
minal Oscilloscope and
confirm the diagram same
as the left diagram.
confirm the diagram same
as the left diagram.
~
V:200mV/div
H:20
H:20
µ
sec/div
Measuring
instrument
instrument
Mode
Cassette
Oscilloscope
Recorded/Playback
Self-recorded/Playback tape
Test point
VIDEO OUT
VIDEO
mono-sco
ADJUSTMENT OF S-PICTURE Confirmation
Receive the mono-sco.
Confirmation : make sure no black split at the mono-sco
picture during the self-Rec PB when the S-PICTURE is
ON with the S-PICTURE ON/OFF,make sure the picture
level at the wedge part is change.
Confirmation : make sure no black split at the mono-sco
picture during the self-Rec PB when the S-PICTURE is
ON with the S-PICTURE ON/OFF,make sure the picture
level at the wedge part is change.
(S-PICTURE ON - about 260 line)
(S-PICTURE OFF about 240 line)
(S-PICTURE OFF about 240 line)
Measuring
instrument
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
Lch, Rch
AUDIO
AUDIO IN at 1KHz -3.8dBs
Measuring
instrument
instrument
Mode
Cassette
Voltmeter
Playback
Alignment Tape VRO-CBFF
Test point
AUDIO OUT
Specification
-3.8
±
2dBs
VIDEO
Optional
ADJUSTMENT OF PB Level Confirmation HIFI
Lch, Rch
Lch, Rch
AUDIO
Optional
Measuring
instrument
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
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.
the changing of the normal mode.
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