Samsung MAX-VB630 Service Manual

3 VCD CHANGER MINI MINI COMPONENT

MAX-VB630

SERVICE

Manual

MIMI MIMI COMPONENT SYSTEM CONTENTS

1. Alignment and Adjustments

2. Exploded Views and Parts List

3. Electrical Parts List

4. Block Diagrams

5. PCB Diagrams

6. Wiring Diagram

7. Schematic Diagrams

1-1Samsung Electronics

1. Alignment and Adjustments

1-1. Tuner

FM THD Adjustment

Output

28 dB(±2dB)

60 dB

Minumum Distortion (0.4% below) (Figure 1-1)

SSG FREQ. Adjustment

point (FM DET)

98 MHz

FM DETECTOR COIL

FM Search Level Adjustment

Adjust SVR1 so that “TUNED” of FLT is lighted (Figure 1-2)

Figure1-2 FM Auto Search Level Adjustment

*Adjust FM S.S.G level to 28dB

Figure1-1 IF CENTER and THD Adjustment

SSG FREQ. Adjustment

point

(SVR1)

98 MHz

BEACON SENSITIVITY SEMI-VR(10K½)

FM S.S.G

GND

28 dB

FM S.S.G

Output GND

Speaker Terminal

FM Antenna Terminal

Distortion Meter

Input

SET

Input

output

Oscilloscope

FM IN

FM Antenna

SET

20 k½

OUTPUT

AM SSG 450KHZ

INPUT

AM ANT IN

Speaker Terminal

60cm

AM IF

VTVM Oscilloscope

AM(MW) I.F Adjustment

Maximum output (Figure 1-3)

SSG FREQ. Frequency Adjustment

point

450 kHz 522 kHz

AM IF

Figure1-3 AM I.F Adjustment

OUTPUT

* Adjustment Location of Tuner PCB

TESTER

MAIN PCB

VT GND

Fig 1-4 OSC Voltage

AM(MW) OSC

Output

1~7.0±0.5V

Received FREQ.

Adjustment point

522~1611 KHz

AM(MW) RF

ITEAM

594 KHz

Maximum Output (Fig1-4)

LW OSC

146~290 KHz

2~7.0±0.5V

AM(MW) RF

150 KHz

Maximum Output (Fig1-4)

SW1 OSC

2.3~7.3 MHz

1~8V±1V

SW1 RF

3.5MHz MA

Maximum Output (Fig1-4)

SW2 OSC

9.5~26.1MHz

SW2 RF

10MHz

Maximum Output (Fig1-4)

1~8V±1V

Alignment and Adjustments

1-2 Samsung Electronics

1-1-2 AM(MW),LW,SW1,SW2 Adjustment

Circuit Measuring Instrument & Step S.S.G Radio dial Adjusting Adjust for to be Arrangement Frequency Setting Point Adjusted

1 522KHz 522KHz MO Adjust for 1.0V±0.1V at the low.

OSC Connect AM signal (IR117)

generator to loop antenna,VTVM AND oscilloscope 2 1611KHz 161 1KHz MO Check for 7.0V±1.0V at the high. (Fig 1-3) (IR117)

(MW)

RF “ 1 594KHz 594KHz MA Maximum out

INTER FREQ “ 1 455KHz 522KHz AM IF Maximum out

OSC Fig 1-3 1 146KHz LO Adjust for 2.0V±0.1V at the low.

LW 2 290KHz LO Check for 7.0V±1.0V at the high.

RF 1 150KHz 150KHz LA Maximum out OSC Fig 1-3 1 2.3MHz SO1 Adjust for 1.0V±0.1V at the low.

SW1 2 7.3MHz - Check for 8.5V±1.0V at the high.

RF 1 3.5MHz 3.5MHz SA1 Maximum out OSC Fig 1-3 1 9.5MHz SO2 Adjust for 1.5V±0.1V at the low.

SW2 2 26.1MHz - Check for 8.0V±1.0V at the high.

RF 1 10MHz 10MHz SA2 Maximum out

Alignment and Adjustments

1-3Samsung Electronics

(GND)

VTVM

1-2-1 To Adjust Tape Speed

1) Measuring tape: i) MTT-111 (or equivalent) (Tapes recorded with 3kHz)

ii) MTT-5512 (or equivalent)

2) Connect the cassette deck to the frequency counter

as in figure 1-4.

1) Before the actual adjustment, clean the play/recording

head.

2) Measuring tape :

i) MTT-114(or equivalent 10kHz AZIMUTH control)

ii) MTT-112(or equivalent) :

3) The cassette deck is connections as shown in figure 1-6.

Notes

NOR SPEED Control

OUT

(connected

to the frequency

counter)

Turn URV1 to left and right

3KHz

Remark

Standard

To Adjust

Pre-Setup

Item

Step

Pre-Setup Condition

1) Deck 1:MTT-111

2) Press PLAY

SW button

3) Deck 2:MTT-5512

AZIMUTH

SPK OUT

(VTVM is

connected to

the scope)

1) Turn the control screw to as shown in Figure 1-5.

Max output and same phase (both channels)

After adjustment secure it with REGION LOCK.

Remark

Standard

To Adjust

Pre-Setup

Item

Step

Pre-Setup Condition

After putting MTT-

114 into Deck 1

1)Press PLAY button.

AZIMUTH

SPK OUT

(VTVM is

connected to

the scope)

1) Turn the control screw to as shown in Figure 1-5.

Max output and same phase (both channels)

After adjustment secure it with REGION LOCK.

Remark

Standard

To Adjust

Pre-Setup

Item

Step

Pre-Setup Condition

After putting MTT-

114 into Deck 2

1)Press PLAY button.

1-2-2 To Adjust PlayBack Level

@ Adjust Deck 2 Play Level

! Adjust Deck 1 Play Level

Cassette Deck

output

SPK OUT

Frequency Counter

Figure 1-4

Figure 1-5

SPK OUT

Recording /Play head

AZIMUTH control screw

Figure 1-6

In Out

SET

Oscilloscope

1-2 Cassette Deck

REC Bias Voltage

Connect to

DCW2 as in

Fig.1-7 and read

the VTVM.

L-CH;DSR2 and R-CH;DSR1 to the right and left.

Remark

Standard

To Adjust

Pre-Setup

Item

Step

Pre-Setup Condition

Input MTT-5512

into Deck2,then

press REC button.

See diagram for adjustment location

Adjust REC Bias Voltage

Figure 1-7

SET

Oscilloscope

VTVM

UCW2

FRONT PCB

2.Exploded Views and Parts List

2-1 Cassette Deck :ADR246AMW(OPTION)

No. Code No. Description Specification Remarks

AH59-00075A DECK-CASSETTE ADR246AMW 1 AH81-00368A ASS.Y RP HEAD ADR2400-RP(SANKYO) MT91-11010T 2 AH81-00141A HEAD PB TC881CB MT59-00044A 3 AH81-00363A ASS,Y MOTOR ADR2400-SHU2L MT91-15012J 4 AH81-00364A BELT MAIN1 ADR2400-MAIN 0.5 6602-001056 5 AH81-00365A BELT MAIN2 ADR2400-MAIN 1.3 6602-001057 6 AH81-00101A BELT SUB ADR2400-FR 6602-001055 7 AH81-00102A SOLENOID ADR2400-1 MT75-00049A

Samsung Electronics 2-1

Samsung Electronics

2-2

2-2 Total Exploded View and Parts List

Samsung Electronics 2-3

* Parts List of Total Exploded view

No. Description Code No. Q’ty Specification REMARK

1 DOOR-CD AH64-01704B 1 ABS L/GRAY 2 WINDOW-DOORCD AH64-01749F 1 PMMA BROWN VB630 3 WINDOW-VFD AH64-01705C 1 PMMA BROWN 4 SHEET-VFD AH63-00395A 1 PC 0.4T 5 KNOB-MIC AH64- 01715B 1 ABS L/GRAY 6 CAP-MIC.D AH64-00964B 1 ABS L/GRAY “MIC, NO RDS” 7 KNOB-CONTRL AH64-01713B 1 ABS CLEAR HOT/STAMPING 8 COVER-CONTROL AH61-00965A 1 ABS BLK 9 KNOB-STOP AH64-01718B 1 PC BLUE 10 CAP-CONTROL AH61-00980B 1 AL 0.8T 11 KNOB-JOG AH64-01710B 1 ABS L/GRAY 12 WINDOW-DOOR.A AH64-01706A 1 PMMA BROWN 13 WINDOW-DOOR.B AH64-01707A 1 PMMA BROWN 14 DOOR-CASS.A AH64-01701B 1 ABS L/GRAYFULL LOGIC

AH64-01701C 1 ABS L/GRAYAUTO REVERSE 15 DOOR-CASS.B AH64-01702B 1 ABS L/GRAYAUTO REVERSE 16 HOLDER-DOOR.A AH61-01011A 1 ABS L/GRAY 17 HOLDER-DOOR.A AH61-01012A 1 ABS L/GRAY 18 KNOB-SOUND AH64-01716B 1 ABS L/GRAY 19 KNOB-VOLUME AH64-01711B 1 ABS L/GRAY 20 KNOB-SUBWOOFER AH64-01717B 1 ABS L/GRAY 21 LENS-SOUND AH64-00157A 1 PMMA BLUE 22 LENS-VOLUME AH67-00156A 1 PMMA BLUE 23 LENS-SUBWOOFER AH67-00160A 1 PMMA BLUE 24 BADGE-BRAND AH64-70003K 1 ABS BLK HOT/STAMPING 25 CABINET-FRONT AH64-01700B 1 ABS L/GRAYNO RDS 26 KNOB-OPEN AH64-01709B 1 ABS L/GRAY 27 KNOB-DEMO AH64-01714B 1 ABS L/GRAY 28 LENS-STANDBY AH67-00159A 1 PMMA MILKY 29 KNOB-POWER AH64-01708B 1 ABS L/GRAY 30 KNOB-ECHO AH64-01719B 1 ABS L/GRAY 31 LENS-FUNCTION AH67-00154C 1 PMMA BLUE 32 HOLDER-FUNCTION AH61-00967A 1 ABS WHITE 33 LENS-P.SOUND AH67-00155A 1 PMMA CLEAR 34 HOLDER-P.SOUND AH61-00970A 1 ABS BLK 35 KNOB-ENTER AH64-01712B 1 ABS L/GRAY 36 LATCH ASSY AH95-50001A 2 POM 37 DAMPER AH61-80030A 2 POM 38 SPRING .A AH61-00522A 1 STS 39 SPRING .B AH61-00523A 1 STS 40 HEAT-SINK IC AH62-00044A 1 AL 41 SUPPORT-RIVET AH61-00414A 3 POM 42 SUPPORT-PCB AH61-00021A 1 ABS BLK

43 COVER-PCBAH63-00278A 1 EVA

No. Description Code No. Q’ty Specification REMARK

40 HEAT-SINK IC AH62-00044A 1 AL 41 SUPPORT-RIVET AH61-00414A 3 POM 42 SUPPORT-PCB AH61-00021A 1 ABS BLK 43 COVER-PCB AH63-00278A 1 EVA 44 BRACKET-PCB AH61-00685A 1 SECC0.8T 45 BRACKET-H/SINK.L AH61-00973A 1 SECC1.0T 46 BRACKET-H/SINK.R AH61-00977A 1 SECC1.0T 47 HEAT-SINK.M AH62-00063A 1 AL WB650

AH62-00063D 1 AL WB630 48 CABINET-BOTTOM AH64-03416E 1 SECC 1.0T 49 CABINET-REAR AH64-01703G 1 SECC 0.8T 1 VOL

AH64-01703H 1 SECC 0.8T 2 VOL

AH64-01703J 1 SECC 0.8T 1VOL+SW

AH64-01703K 1 SECC 0.8T 2VOL+SW 50 COVER-REAR AH61-00969A 1 ABS L/GRAY 51 CABINET-TOP AH64-00616A 1 SECC 0.8T

Samsung Electronics

2-4

2-3 CD Deck Exploded View and Parts list

CD SUB PCB

TRAY STOPPER

BASE MAIN

No. Code No. Description Specification Remarks

AH97-00857A ASS’Y-DECK

G3HI-3CD/VCD 1 AH66-80022A SLIDER-CAM ABS HF-380 NTR 2 AH66-60034A BELT-LOAD CR 3 AH66-20186A GEAR-PULLEY POM (M90-44) WHT 4 AH66-20187A GEAR-LOAD POM (M90-44) BLK 5 AH66-20188B GEAR-CAM POM (M90-44) WHT 6 AH66-20189B GEAR-TRAY POM (M90-44) BLK 7 AH66-20190B GEAR-CONVERT POM (M90-44) WHT 8 AH66-20191A GEAR-SYNCRO ABS HF-380 NTR 9 AH66-20192A GEAR-WORM POM(M90-44),M0.5,PCD4.5 10 AH31-12001A MOTOR-LOADING FF-030PN-09120 11 AH66-20193A GEAR-ROULLETE POM(M90-44) BLK 12 AH63-00324A TRAY-ROULLETE ABS XR-401 BLK 13 AH63-00325A TRAY-DISC ABS BLK 14 AH32-10001F SENSOR KPI-L06 15 AH61-00837A BASE-MAIN ABS,NATURAL,CMS-300 16 3302-000159 MAGNET AC,3500-3800G,2.6-3.2MGOe,30 17 AH63-90053A TABLE-CHUCK ,ABS,+GF20%,BLK, 18 AH63-00068B SHEET-CHUCK SHEET,HYMERON,BLK,0.4T 19 3405-000101 SWITCH -MICRO MLS-24 20 AH31-10021A MOTOR-DC RF-500TB,9VDC/130MA 21 AH66-10008A PULLEY-MOTOR POM,BLK,CMS-CR3 22 AH73-10031A RUBBER-CD(R) SI,CMS-300,40,RED 23 AH91-60150C CDP DECK ASSY CMS-D73SG6U 24 AH66-30098A LEVER-LIFTER ABS BLK CMS-300 25 AH30-00007A PICK-UP SOH-AD3 26 AH73-10034A RUBBER-CD(G) SI,CMS-300,40,GREEN 27 AH92-00922A ASS’Y PCB CD MAIN 28 AH61-00225A BRKT-CHUCK SECL 0.8t

Samsung Electronics 2-5

2-4 SPEAKER Exploded View and Parts list

PS VB630E ASS'Y LEFT: AH81-00642Y

No. Description Code No. Q'TY

PANEL ASS'Y AH81-00642T

UNIT TWEETER AH81-00642N

Specification

PANEL+P/GRILLE

UNIT WOOFER AH81-00642V

WOOFER RING

AH81-00642G

HIPS BLK

CABINET ASS'Y

AH81-00642J

PB 9t / 12t

UNIT SUBWOOFER

AH81-00642U

SIDE-PANEL

AH81-00642E

HIPS WHITE

PS VB630E ASS'Y RIGHT: AH81-00642X

* CAUSION : It is used the bonding, connet NET FRAME(or FRONT PANELASS’Y) to CABINET ASS’Y.

So when the disassembly, take extreme care not to demage the SPEAKER.

+ 19 hidden pages