DAEWOO DVS1WN
Instrukcja Serwisowa

SECTION 2

CIRCUIT ADJUSTMENTS

1. SERVO CIRCUIT
ITEM MODE ADJUSTMEN T POINT R592 CHECK POINT PJ01 V.OUT PT01 Pin 3 TEST EQUIPMENT TEST TAPE INPUT SIGNAL

PLAYBACK PHASE

PB

Oscilloscope

DN-2

Location of Adjustment Parts
* PCB MAIN PJ01

Observation Waveform
* HORIZONTAL AXIS. : 0.1 * VERTICAL AXIS : 5V/Div (CH1) 0.5V/Div (CH2)

Rising edge of SW. Pulse PT01 #3 CH 1 SW.PULSE

+

R592
6.5H

CH 2 VIDEO OUTPUT

**[Adjustment Procedure]** (1) Preparation ¨çInsert Test tape.(DN-1) ¨èSet the oscilloscope to the CHOP mode. Connect CH1 to the SW PULSE (PT01#3) and CH2 to the VIDEO OUT (PJ01) and trigger the with the signal from CH1. (2) Adjustment Adjust R592 to trigger the complex video signal of CH-2 to CH-1 H.SW so that the distance from A(B) Head selection point of H.SW signal to the starting point of V-sync signal is 6.5 ±0.5H.