SAMSUNG SVP-N204 Diagram

TABLE OF CONTENTS

SECTION 1 SUMMARY

1. FEATURES ......................................................2

2. SPECIFICATIONS ................................................2

3. FUNCTIONS .....................................................3

4. LOGIC MODE PERFORMANCE TABLE ..................................3

5. DISPLAY DETAILS ...............................................3

6. FRONT/REAR PANNEL .............................................4

SECTION 2 CIRCUIT ADJUSTMENTS

1. SERVO CIRCUIT .................................................5

SECTION 3 CIRCUITS DIAGRAMS

1. CONNECTION DIAGRAM ............................................6

2. POWER CIRCUIT DIAGRAM .........................................7

3. SERVO/SYSCON CIRCUIT DIAGRAM ..................................8

4. AUDIO/VIDEO CIRCUIT DIAGRAM ...................................9

SECTION 4 IC & TR VOLTAGE SHEETS

1. IC VOLTAGE SHEET .............................................10

2. TR VOLTAGE SHEET .............................................11

SECTION 5 PRINTED CIRCUIT BOARD DIAGRAM ...........12

SECTION 6 PARTS LIST .................................13,14,15

SECTION 1 SUMMARY

2. SPECIFICATIONS

1. FEATURES

1) VHS, 2 HEAD

2) CENTER DECK MECHANISM

3) DIGITAL AUTO TRACKING

4) UNLOADING SYSTEM (QUICK START)
(PLAY ¡æ STOP ¡æ PLAY)

5) AUTO SYSTEM
(CST IN ¡æ PWR ON ¡æ PLAY ¡æ REW ¡æ STOP)

6) FREE VOLTAGE SWITCHING MODE POWER SUPPLY

7) WIRELESS REMOTE CONTROL

8) PLAYBACK ONLY

ITEM DESCRIPTION

Video Signal System NTSC

Playback system 2HD:Rotary 2 heads helical scanning system

Tape Width 12.65mm(1/2inch), VHS

Tape Speed SP:33.35mm/s, LP: - , EP: 11.12mm/s

FF/REW Time (T-120) Within 5 min.

Video Signal Output

Luminance Signal Output SP:43dB Min.,LP: - ,EP: 41dB Min.

Horizontal Resolution SP:220 Lines Min.,LP: - ,EP:210 Lines Min.

Audio Signal Output

Audio Signal S/N SP:40dB Min.

Audio Frequency Char. SP:100Hz - 10kHz, LP: - , EP:100Hz-5KHz

AC Input AC 110/220V, 60Hz

Power Consumption REW : 12W

1Vp-p 75§Ù Unbalanced

-6dBm, 10§Ú, Max.

LP: - , EP:36dB Min.

Operating Temperature

5¢ªC ~ 35¢ªC(Humidity:80% Max.)

Storage Temperature

Dimension (W x H x D) 280 x 91 x 345 mm

Weight Approx. 3.8Kg (Net)

-20¢ªC ~ 60¢ªC

3. FUNTIONS

4. LOGIC MODE PERFORMANCE TABLE

ITEM DESCRIPTION

Quick Start

CUE

EJECT Operated although the power is off.

Auto-tracking Operates when the tape is inserted.

Auto-Rewind Operateds in rewinding the tape to the end.

FF/REW One touch system during STOP mode.

Button

MODE

CST OUT X X X X

The picture comes up within 1 second on the
screen at playback from stop.

Operated by one touch of FF button in the
playback mode.
It returns automatically to the playback mode
if CUE is continued more than 5 minutes.

STOP/EJECT PLAY REW FF

STOP EJECT PLAY REW FF

PLAY STOP PLAY REW CUE

CUE STOP PLAY REW CUE

FF STOP PLAY REW FF

REW STOP PLAY REW FF

Note) 1. X : The change of mode is impossible.

5. DISPLAY DETAILS

M O D E LED D I S P L A Y

POWER POWER LED ON

PLAY PLAY LED ON

CST IN CST IN LED ON

CUE PLAY LED, FF LED ON

FF FF LED ON

REW REW LED ON

SECTION 2 CIRCUIT ADJUSTMENTS

1. SERVO CIRCUIT

ITEM MODE

PLAYBACK

PHASE

Location of Adjustment Parts Observation Waveform

PJ01

PT01 #3

+

R592

ADJUSTMEN

T

POINT

PB R592

* PCB MAIN

CHECK

POINT

PJ01 V.OUT

PT01 Pin 3

TEST

EQUIPMENT

Oscilloscope DN-2

* HORIZONTAL AXIS. : 0.1

* VERTICAL AXIS : 5V/Div

0.5V/Div (CH2)

Rising edge of SW. Pulse

6.5H

TEST TAPE

(CH1)

CH 1 SW.PULSE

INPUT

SIGNAL

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.