Samsung MAX-ZS990, MAX-ZS950, MAX-ZS940 Service Manual

3 CD CHANGER
MINI MINI COMPONENT

MAX-ZS990/ZS950/ZS940

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. Wiring Diagram

6. Schematic Diagrams

- Confidential -

© Samsung Electronics Co.,Ltd. JAN. 2004

Printed in Korea
Code no. AH68-01383M

1-1Samsung Electronics

1. Alignment and Adjustments

1-1.Tuner

FM THD Adjustment

Output

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 (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(10KΩ)

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 kΩ

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

Fig 1-4 OSC Voltage

AM(MW) OSC
Adjustment

Output

1~7.0±0.5V

Received FREQ.
Adjustment

point

522~1611 KHz

MO

AM(MW) RF
Adjustment

ITEAM

594 KHz

MA

Maximum
Output(Fig1-4)

LW OSC
Adjustment

146~290 KHz

LO

2~7.0±0.5V

LW RF
Adjustment

150 KHz

LA

Maximum
Output(Fig1-4)

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 MW OSC Adjust for 1.0V±0.1V at the low.

OSC Connect AM signal (IR117)

generator to loop
antenna,VTVM AND
oscilloscope 2 1611KHz 1611KHz MW OSC

Check for 7.0V±1.0V at the high.

(Fig 1-3) (IR117)
AM
(MW)

RF “ 1 594KHz 594KHz MW ANT Maximum out

INTER FREQ “ 1 455KHz 522KHz TL2 Maximum out

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

LW 2 290KHz LW OSC

Check for 7.0V±1.0V at the high.

RF 1 150KHz 150KHz LW ANT Maximum out
OSC Fig 1-3 1 2.3MHz SW1 OSC 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 SW1 ANT Maximum out
OSC Fig 1-3 1 9.5MHz SW2 OSC 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 SW2 ANT Maximum out

Alignment and Adjustments

1-3Samsung Electronics

(GND)

VTVM

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 SPK OUT of the MAIN PCB to the fre-

quency counter as in figure 1-5.

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

2) Measuring tape :
i) MTT-114N(or equivalent 10kHz AZIMUTH control)
ii) MTT-5512

3) The cassette deck is connections as shown in figure 1-7.

Notes

Notes

NOR
SPEED
Control

1

SPK OUT
(connected
to the frequency
counter)

Turn VSR1 to
left and right
(FRONT PCB)

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:Same
as above

AZIMUTH

1

SPK OUT
(VTVM is
connected to
the scope)

- T urn the control
screw to as shown
in Figure 1-6.

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 MTT­114N into Deck 1

- Press FWD PLA Y
button.

1

2

- Turn the control
screw to as shown in
Figure 1-6.

MAX OUTPUT
and same phase
(both channels)

CHECK TO
7mV(±0.5mV)

Remark

Standard

To Adjust

Pre-Setup

Item

Step

Pre-Setup
Condition

After putting MTT­5512 into Deck 2

1) Press REC PLA Y button.

2) TAPE PCB JCW3 ,connected
to VTVM

Recording
Bias
Voltage

2-2. To Adjust PlayBack Level/REC

2. Adjust Deck 2 Play Level/ REC BIAS

1. Adjust Deck 1 Play Level

MAIN PCB

output

SPK OUT

Frequency Counter

Figure 1-5

SPK OUT

Figure 1-7

In Out

MAIN PCB

Oscilloscope

2. Cassette Deck

±1%
range

Figure 1-8

Audio OSC.

SET
(MAIN PCB)

Oscilloscope

AUX IN

VTVM

IN

SPK OUT

IN OUT

TP

AZIMUTH

Figure 1-6

Recording /Play head

AZIMUTH control screw

(RVS Play)

AZIMUTH control screw

(FWD Play)

SPK OUT
(VTVM is con­nected to the
scope)

Fig 1-8

- Turn JSR2L,JSR2R
to the right and left

After adjust­ment secure
it with
REGION
LOCK.

After putting MTT­114N into Deck 2

- Press FWD PLA Y
button.

Samsung Electronics2-1

2.Exploded Views and Par ts List

2-1-1 Cassette Deck :ADR268FTW1 (OPTION)

No. Code No. Description Specification Remarks

AH59-01146A DECK-CASSETTE ADR268FTW1
1 AH81-01030A ASSY R/P HEAD TR56R-AA2N1 MT91-11012W
2 AH81-01033A ASSY P/B HEAD DZK10P-122N3 MT91-11013C
3 AH81-00422A ASSY MOTOR ADR246DSW MT91-15013Y
4 AH81-00364A BELT MAIN1 ADR246DSW 6602-001056
5 AH81-00365A BELT MAIN2 ADR246FTW 6602-001010
6 AH81-00101A BELT SUB 34.1*1.1*1.1 6602-001055
7 AH81-00102A SOLENOID DAT-05A1 MT75-00049A

Samsung Electronics

2-2

2-1-2 Cassette Deck :ADR268AMW1 (OPTION)

No. Code No. Description Specification Remarks

AH59-01145A DECK-CASSETTE ADR268AMW1
1 AH81-00368A ASSY R/P HEAD ADR2400 (SANKYO) MT91-11010T
2 AH81-00141B ASSY P/B HEAD MK10P-AA2N3 MT59-00041V
3 AH81-00363A ASSY MOTOR ADR246DSW MT91-15012J
4 AH81-00364A BELT MAIN1 ADR246DSW 6602-001056
5 AH81-00365A BELT MAIN2 ADR246DSW 6602-001057
6 AH81-00101A BELT SUB 34.1*1.1*1.1 6602-001055
7 AH81-00102A SOLENOID DAT-05A1 MT75-00049A

2

7

1

7

6

5

3

6

4

Samsung Electronics2-3

2-2 Total Exploded View and Parts List

Samsung Electronics

2-4

* Parts List of T otal Exploded vie w

No. Code No. Description Specification Q’ty REMARK

1 AH64-02601B CABINET-FRONT MIPS D/GRAY 1 2 MIC ,NO RDS

AH64-02601D CABINET-FRONT MIPS-D/GRAY 1 NO MIC ,WITHIN RDS
2 AH61-01436B CAP-CD,OPEN MIPS L/GRAY 1 SILVER
3 AH64-02617B KNOB-CD.OPEN ABS L/GRAY 1 COMMON
4 AH64-02609B DOOR-CD ABS D/GRAY 1 COMMON
5 AH64-02610F CAP-DOOR,CD ABS BLUE 1 MAX-ZS990

AH64-02610G ABS BLUE MAX-ZS950
6 AH64-70003K BADGE-BRAND ABS L35 1 COMMON
7 AH61-01437B DECO-FRONT ABS BLUE 1 COMMON
8 AH63-00653A SHEET-VFD PC 0.4T 1 COMMON
9 AH64-02612C WINDOW-VFD PMMA BLUE 1 MP3
10 AH61-01433C CAP-FRONT MIPS L/GRAY 1 MP3
11 AH61-01434B CAP-DOOR-CASS,A MIPS L/GRAY 1 2 AUTO-REVERSE

AH61-01434C MIPS L/GRAY 1 AUTO-REVERSE
12 AH61-01435B CAP-DOOR-CASS,B MIPS L/GRAY 1 COMMON
13 AH64-02607B DOOR-CASS.A ABS D/GRAY 1 COMMON
14 AH64-02608B DOOR-CASS.B ABS D/GRAY 1 COMMON
15 AH67-00231B DECO-LENS,JOG ABS NATURAL 1 COMMON
16 AH63-00544A SHEET -JOG 3M TAPE 1 COMMON
17 AH64-02625B KNOB-JOG ABS D/GRAY 1 COMMON
18 AH67-00240A LENS-JOG PMMA MILKY 1 COMMON
19 AH64-02624B KNOB-SOUND.SEL ABS NATURAL 1 COMMON
20 AH67-00234A LENS-SOUND,SEL PMMA MILKY 1 COMMON,ZS990

AH67-00234B PMMA L/BLUE BLUE COLR,ZS990
21 AH67-00230B CAP-JOG MIPS D/GRAY 1 COMMON

AH67-00230C MIPS D/GRAY LATIN
22 AH64-02623B KNOB-VOLUME ABS NATURAL 1 COMMON
23 AH67-00241A LENS-VOLUME PMMA MILKY 1 COMMON ,ZS990

AH67-00241B PMMA L/BLUE BLUE COLR,ZS990
24 AH64-02279B KNOB-MIC ABS L/GRAY 1 COMMON (NO EUR)
25 AH67-00238A LENS-POWER PMMA MILKY 1 COMMON
26 AH64-02620B KNOB-POWER ABS L/GRAY 1 COMMON
27 AH64-02621B KNOB-ECHO ABS L/GRAY 1 COMMON (NO EUR)
28 AH64-02619B KNOB-TUNING ABS L/GRAY 1 COMMON
29 AH64-02613A HOLDER-VFD ABS BLACK 1 COMMON
30 AH64-02614A HOLDER-FUNCTION ABS WHITE 1 COMMON
31 AH67-00237B LENS-FUNCTION PMMA MILKY 1 COMMON
32 AH64-02618B KNOB-DEMO ABS D/GRAY 1 COMMON

33 AH67-00235B LENS-P.SOUND PMMA RED 1 COMMON
34 AH64-02615A HOLDER-P.SOUND ABS WHITE 1 COMMON
35 AH61-01440A HOLDER-LENS.JOG ABS WHITE 1 COMMON
36 AH67-00232A HOLDER-LENS.VOL ABS WHITE 1 ZS990
37 AH61-01438A HOLDER-SELECT ABS WHITE 1 ZS990
38 AH64-02622B KNOB-ENTER ABS L/GRAY 1 COMMON
39 AH61-01439A HOLDER-PSYCHE ABS WHITE 1 COMMON
40 AH67-00233B LENS-PSYCHE PMMA MILKY 1 COMMON
41 AH67-00242B LENS-MAX.BASS PMMA MILKY 1 COMMON (MAX,BASS)

AH67-00242C PMMA MILKY COMMON (S.BASS)
42 AH61-00552A SPRING-EJECT,L STS 1.0 1 COMMON
43 AH61-00553A SPRING-EJECT,R STS 1.0 1 COMMON
44 AH61-80030A DAMPER-GEAR ASS.Y 2 COMMON
45 AH95-50001A LATCH-ASS`Y ASS.Y 2 COMMON
46 AH64-02603A CABINET-SIDE.L MIPS D/GRAY 1 COMMON
47 AH64-02606A CABINET-BOTTOM SEC 1.2T 1 COMMON
48 AH64-02604A CABINET-SIDE.R MIPS D/GRAY 1 COMMON
49 AH61-40014A SUPPORT-RIVET ABS ASS’Y 3 COMMON
50 AH61-00021B SUPPORT-PCB ABS BLK 3 COMMON
51 AH63-00662A COVER-PCB PC 0.5T 1 COMMON
52 AH65-30010A CLAMP-WIRE DABL-2,-,-,-,- 1 COMMON
53 AH62-00100A HEAT-SINK,TR AL 3.0T 1 COMMON
54 AH61-01442A SUPPORT-PCB.POWER ABS D/GRAY 1 COMMON
55 AH61-00685A BRKT-PCB SECC 1.0T 1 COMMON
56 AH62-00102A HEAT-SINK,POWER AL 2.0T 1 ZS940
57 AH61-01444A BRKT-H/S,L SECC 1.2T 1 COMMON
58 AH61-01445A BRKT-H/S,R SECC 1.2T 1 COMMON
59 AH62-00101A HEAT-SINK,M AL EXTR 1 ZS990

AH62-00080K AL EXTR ZS990
60 AH64-02605E CABINET-REAR MIPS D/GRAY 1 ZS940/EXP

AH64-02605J MIPS D/GRAY ZS940/EUR

AH64-02605K MIPS D/GRAY ZS990/EXP

AH64-02605L MIPS D/GRAY ZS990/EUR
61 AH64-02602A CABINET-TOP MIPS D/GRAY 1 COMMON

No. Code No. Description Specification Q’ty REMARK

Samsung Electronics2-5

2-3 CD Deck Exploded View and Parts list

No. Code No. Description Specification Remarks

AH59-00164B 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