Grundig GDS0800 Service Document

Service Document

Es gelten die Vorschriften und Sicherheitshinweise

gemäß dem Service Manual „Sicherheit“, Materialnum-

mer 720108000001, sowie zusätzlich die eventuell

abweichenden, landesspeziﬁschen Vorschriften!

The regulations and safety instructions shall be valid

as provided by the „Safety“ Service Manual, part

number 720108000001, as well as the respective

national deviations.

S

Service

Manual

Sicherheit

Safety

Materialnr./Part No.

720108000001

RRCD 3700 MP3 GDS0800

Dieses Service Dokument ist nur in Datenform verfügbar

This Service Document is only available as data

Änderungen vorbehalten/Subject to alteration

Made by GRUNDIG in Germany • TCC 0208 HH

http://www.grundig.com

RRCD 3700 MP3

TUNER

IC 900

U.B.S.

Q109 Q110

FUNCTION

SELECTOR

SW 109

TAPE R/P

IC 401

AUDIO

CONTROL

VR100

MUTING

CIRCUIT

Q100 Q101

POWER

AMPLIFIER

IC100

CD

MECHANISM

DA11 B3N

CD SERVO SYSTEM

IC701 IC702 IC703

KEY BOARD CD DISPLAY 9V MAIN SUPPLY

D100 D101

D111 D112

BATT.

1.5V X 6

DC 7V

DC 9V

R-CH SP.

FM ANTENNA

R/P HEAD

7V REG

Q102 Q103 Q107

E. HEAD

REC

L-CH SP.

AC

SOCKET

AC/DC SWITCH

ATTACH ON

AC SOCKET

SPK./HP.

SWITCH

HEAD-

PHONE

RRCD 3700 MP3

8-Nov-2007

L.CH OUT

L-CH

R-CH

GND

COMMAN

R.CH OUT

7V

Q401

9014C

1

2

3

4

CN401 16

17

18

SW401F

PS-82D06

19

20

21

SW401G

PS-82D06

7

8

9

SW401C

PS-82D06

3

2

1

4

6

7

L401

9170

10

11

12

SW401D

PS-82D06

22

23

24

SW401H

PS-82D06

D401

1N4148

13

14

15

SW401E

PS-82D06

C402

10n

+

C404

47u

C405

10n

D402

1N4148

4

5

6

SW401B

PS-82D06

+

C401

100u

C406

1n8(m)

R450

3K9

R453

120K

R454

1K

R455

820K

R456

82

R401

120

R405

1M

+

C403

47u R402

470

R410

10K

R411

47K

+

C410

1u

R412

680K

Q402

9014C

R414

4K7 +C411

1u

R413

470

R420

470

R421

10K

R423

680K

Q403

9014C

R422

47K

R424

4K7

+

C420

1u

R441

68K

R431

68K

Q404

9014C

Q405

9014C

R404

10K

R403

10K

R442

6K8

R432

6K8

C413

18n(m)

C424

18n(m)

+

C414 47u

+

C423

47u R444

82K

R434 82K

+

C422

1u

+C412

1u

R445

10K

R435

10K

C425

1n5

C415

1n5

C416

3n9(M)

C426

3n9(M)

+

C421

1u

+

C407

22u

R415

180K

R425

180K

R436

6K8

R446

6K8

R452

100

R430

12K

R440

12K

1

2

3

4

5

6

7

8

9

IC401

LS22241

C427

1n5

C417

1n5

R443

68

R433

68

R426

5K6

R416

5K6

SYNC

L-OUT

GND

R-OUT

L-REC

R-REC

GND

REC. 6V5

REC GND

1

2

CN403

C409 180P

C408

180P

C418

2n

C419

2n

TO R/P HEAD

TO MAIN PCB

TAPE SECTION

1

2

3

4

5

6

7

8

CN402

C429

1n

C428

1n

C435 10n

L405 1uH

L403 1uH

L402 1uH

L404 1uH

RRCD 3700 MP3

OITARAPERP LARENEGDERIUQER STNEMURTSNI

N

s

noiacific

eps ot

g

n

i

d

r

occa CA

r

o

C

D

,egatlov ecru

os kcehC .

1rotareneG la

ngi

S .1

d

e

ngila g

ni

eb dna

b ot hc

t

iws

noitcnuf t

e

S .2rotarene

G la

ngiS MF .2

3. FM/AM IF Sweep Generator (10.7 MHz for FM) 3. Signal input should be kept as low as possible to avoid AGC and AFC function

: noitalud

o

m

d

radnat

S

.4MVT

V .4 AM 1 KHz 30% mod

5. Oscilloscope FM 1 KHz 22.5 KHz dev

6. Frequency counter

7. Regulated DC power supply

AM IF ALIGNMENT

STEP SIGNAL SOURCE (AM RF Gen.)

CONNECT TO

SET SIGNAL

TO

ALIGNMENT INDICATOR (Oscilloscope, VTVM)

CONNECT TO

SET RADIO

DIAL TO ADJUST ADJUST FOR REMARKS

TP5

ta lortnoc

e

m

u

l

oV

teiuQla

ni

mret t

up

tuo rotceteD

zH

K564

noitaidar

d

radnats

A

noitisop

.ni

mmumixaM009Ttnio

Pd

nu

o

rg

dna

pool1

2 Repeat step 1 for max. output

FM IF ALIGNMENT

This model requires no FM IF alignment as the IF is fixed by ceramic filter and discriminator CF900 & CF901. Please take note that correct type and same color dot of ceramic filter is used

in servicing, diff color dot of ceramic filter may cause worse IF 'S' curve characteristic and distortion.

Connect IF genescope output terminal to TP903 & TP902 (GND) in series with a 1000Pf capacitor, connect scope input terminal to TP905 & TP904 (GND), then the IF characteristic curve can be

observed.

A L I G N M E N T P R O C E D U R E

RRCD 3700 MP3

FM RF ALIGNMENT

STEP SIGNAL SOURCE (FM Signal Gen.)

CONNECT TO

SET SIGNAL

TO

ALIGNMENT INDICATOR (Oscilloscope, VTVM)

CONNECT TO

SET RADIO

DIAL TO ADJUST ADJUST

FOR REMARKS

L901 (Osc. coil)

1o hcterts

)

dne ts

ewo

L

(

zH

M 53

.78

r

(modulated) squeeze

emuloVA-009CVPslanimre

T

zH

M

52.8012

09PT & 1

09PT

2through matching network (modulated) across speaker (Highest end) (Osc. trimmer) Maximum control at

noitisop .xam)lioc FR( 309Llioc eciovy

rass

ecen fi

3ro

hct

e

rtsz

HM 88

zH

M 88

(modulated) squeeze

106 MHz PVC900-B

4)remmirt FR( zH

M

601)

detal

udom

(

5 Repeat steps 3 and 4 as necessary to minimize tracking error and also steps 1 and 2 if necessar

y

AM RF ALIGNMENT

STEP SIGNAL SOURCE (AM Signal Gen.)

CONNECT TO

SET SIGNAL

TO

ALIGNMENT INDICATOR (Oscilloscope, VTVM)

CONNECT TO

SET RADIO

DIAL TO ADJUST ADJUST

FOR REMARKS

515 KHz T901

1)lioc .csO()dne tsewoL()detal

u

do

m

(

1635 KHz emuloVD

-0

09CVP

2ta lortnocmumixaM)remmirt .csO()dne tsehgiH(rekaeps ssorcA)detaludom(noitaidar dra

dna

ts A

noitisop .xam4~1 TNAlioc eciovz

H

K 006.tna pool

3)lioc .

tn

a

(

zHK

0

06)

detal

udom

(

1400 KHz PVC900-C

4)remmirt .tna(zHK 0041)detal

u

dom(

5 Repeat steps 3 and 4 as necessary to minimize tracking error and also steps 1 and 2 if necessar

y

Applicable unit :

1 This model is using CD drive unit No. SANYO DA11B3N

2 The alignment for CD section is fully automatic and no adjustment is reguired

ALIGNMENT PROCEDURE FOR CD SECTION

RRCD 3700 MP3

1 ) Check source voltage, DC or AC according to specifications . 2 ) Set function switch to Tape being aligned .

A ) MEASURING INSTRUMENTS REQUIRED FOR TAPE B ) EQUIPMENTS REQUESTED FOR AC BIAS FREQUENCY / CURRENT ADJUSTMENT :

SPEED AND HEAD AZIMUTH ADJUSTMENT.

( 1 ) TAPE SPEED ADJUST

MTT-211NA (3150 Hz) TEST

AC BIAS FREQUENCY ALIGNMENT :

Note :The test unit should be keep in recording mode and added two resistors Ra & Rb as shown in the

Fig. 2 before alignment. be sure to delete the both resistors Ra & Rb after alignment completed.

tn

ioP

ts

eT.

T

N

EMTSU

J

DA

HTUM

IZA

DAEH ) 2

( Adjust Frequency Frequency Observe a

t

Observe

2.1 - Connect the equipments as shown in the Fig. 1. at Beat 0 Beat 1 Beat 2 Beat 0 Beat 1 Beat 2

(The Both Speakers loading Are Required) Resistor

2.2 - Insert a test ta

p

e

(

10 KHz : MTT-114

)

into deck. Ra or Rb L401 60 KHz ± 0.3K

2.3 - Press PLAY and set VOLUME at reference output.

2.4 - Adjust the azimuth adjustment screw for the max.

& balance ch. output on both ch. of oscilloscope.

2.5 - Secure above screw with glue after adj. completed.

GENERAL PREPARATION -

==> TO CASS PCB

CN401

62KHz

1

Ra

10 ohm

Rb

10 ohm

4

INPUT OUTPUT

VTVM

FREQUENCY

COUNTER

FIG.2

MOTOR

SPEAKER

TERMINALS

AZIMUTH ADJ. SCREW

TAPE IS REQUIRED

R/P HEAD

OSCILLOSCOPE

CH. 2

3150 Hz

CH. 1

FREQUENCY

COUNTER

FIG.1

R/P HEAD

RRCD 3700 MP3

GRUNDIG Service E - 1

Ersatzteilliste

Spare Parts List

RRCD 3700 MP3

AUDIO

BESTELL-NR. / ORDER NO.: GDS0800

ǵ

1 / 2008

POS. NR. ABB. MATERIAL-NR. ANZ. BEZEICHNUNG DESCRIPTION

GDS0800 RRCD 3700 MP3 BLACK RRCD 3700 MP3 BLACK

KEIN E-TEIL NO SPARE PART

0001.000 759540384400 BATTERIEFACHDECKEL RUECKWAND BATTERY DOOR BACK COVER

0002.000 759540384500 BATTERIEFACHDECKEL BACK UP BATTERY DOOR BACK BACK UP

0003.000 759540384300 STABANTENNE ROD ANTENNA

DIE BEDIENUNGSANLEITUNG KOENNEN THE INSTRUCTION MANUAL CAN BE

SIE IM INTERNET UNTER FOLGENDER DOWNLOADED FROM THE INTERNET

ADRESSE ABRUFEN: WWW.GRUNDIG.DE UNDER THE FOLLOWING ADDRESS:

MENU: DOWNLOADS WWW.GRUNDIG.DE MENU: DOWNLOADS

HINWEIS! NOTE!

IM DEFEKTFALL NEHMEN SIE IN THE EVENT OF A DEFECTIVE

KONTAKT MIT UNSERER PLEASE CONTACT YOUR SERVICE

HOTLINE AUF

ÄNDERUNGEN VORBEHALTEN / SUBJECT TO ALTERATION

( ! )

!

Es gelten die Vorschriften und Sicherheitshinweise

gemäß dem Service Manual "Sicherheit", Mat.-Num-

mer 720108000001, sowie zusätzlich die eventuell ab-

weichenden, landesspezifischen Vorschriften!

The regulations and safety instructions shall be valid

as provided by the "Safety" Service Manual, part

number 720108000001, as well as the respective

national deviations.

Grundig GDS0800 Service Document

This manual is also suitable for

Grundig GDS0800 Service Document

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