Daewoo TVZ 1321, Руководство по обслуживанию

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2. AUDIO
2-1) AUDIO CIRCUIT ADJUSTMENT METHOD
• Adjustment Procedure
1. Preparation
1) Select REC mode using Service REMOCON. (then, front panel REC LED will be on.)
2) No signal is applied..
3) Connect the Audio level meter to RC HEAD 10
Ω
(on solder side).
2. Adjustment
1) Adjust RU57 to obtain [3.0]mVrms.
3. Adjustment Inspection Standard : [3.0
±
0.1mVrms]
• If you don't have Service Remocon, You can select rec mode by inserting a tape (with record tab removed) and push-
ing the rec button.
Item Mode Adjustment parts Check point Test equipment Test tape Input signal
Audio
REC RU57 RC HEAD 10
Ω
Audio level meter Blank tape NONE
Record Bias
Location of Adjustment Parts Observation Waveform
MAIN PCB Horizontal Axis :
Vertical Axis :
RC HEAD
DECK AS
MAIN PCB PARTS SIDE
PY09 PY05
Y/C
BOARD
RU57