Daewoo TVZ 1321 Service Manual page 35

2. AUDIO
2-1) AUDIO CIRCUIT ADJUSTMENT METHOD
Item Mode
Audio
REC
Record Bias
Location of Adjustment Parts
MAIN PCB
PY09
DECK AS
MAIN PCB PARTS SIDE
• 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 10Ω (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.
Adjustment parts
RU57
PY05
Y/C
BOARD
RU57
RC HEAD
Check point Test equipment
RC HEAD 10Ω Audio level meter
Observation Waveform
Horizontal Axis :
Vertical Axis :
33
Test tape Input signal
Blank tape NONE