Sanyo DC-LD5 Bedienungsanleitung

,, :.1:,..,.:..,’ ,.

Serdce Manual Midi

with

Disc

Component System DC*LD5 (GENERAL)

Fully Compatible

Player

Specifications

1. SPECIFICATION ...................... 1

AUDIO BLOCK

10.

11.

12.

13.

14.

15.

16.

17.

ADJUSTMENT(TUNER) ................ 2

REMOTE CONTROLLER ............... 2

TAPE MECHABISM ADJUSTMENT ... 4

ADJUSTMENT(DECK) ................. 8

EXPLODED VIEW(CABINET &

CHASSIS) ............................ 10

PARTS LIST .......................... 11

PARTS LIST

(TAPE MECHANISM) ............ 18

EXPLODED VI EW(TAPE

MECHANISM) ....................... 19

IC BLOCK DIAGRAM ................ 22

MDP/AUDIO INTERFACE

~PROCESSOR FLOW CHART . . . . . . . . 27

SCHEMATIC DIAGRAM

(ECHO VIDEO)) .................... 28

SCHEMATIC DIAGRAM

(DISC PROTECT)) ................... 29

SCHEMATIC DIAGRAM(TUNER) . . . . . . 30

SCHEMATIC DIAGRAM(DECK) ....... 32

SCHEMATIC DIAGRAM

(MDP FRONT) ..................... 34

SCHEMATIC DIAGRAM(FRONT) ...... 36

18.

19.

20.

21.

22.

23.

24,

PRODUCT CODE No.

129 355 03

SCHEMATIC DIAGRAM

(PRE-MAIN AMP) .................. 38

WIRING DIAGRAM-l .............. 40

WIRING DIAGRAM-2 . . . . . . . . . . . . . . 42

WIRING DIAGRAM-3 .............. 44

WIRING DIAGRAM-4 .............. 46

CONNECTING DIAGRAM .,...,...0,, 48

INSPECTION(MDP) .................. 50

LD BLOCK

25.

26.

27\

28\

29.

30.

31.

32,

33.

PARTS LIST(LD) .....................

BLOCK DIAG RAM

(LD UNIT) ........................

OVERALL WIRING

DIAGRAM(PCB CONNECTING

DIAGRAM) ........................

SCHEMATIC DIAGRAM

(CP1 PCB,VIDEO CIRCUIT) ...........

SCHEMATIC DIAGRAM

(PW1 PCB ,POWER CIRCUIT) .......

WIRING DIAGRAM &WAVEFORM

(VIDEO/POWER) ...................

WIRING DIAGRAM(MAIN) ..........

SCHEMATIC DIAGRAM &WAVEFORM

(PICKUP/MAIN) ....................

SCHEMATIC DIAGRAM

(CP2 PCB MAIN CIRCUIT) ...........

SEP.

Specification subject to change without notice.

REFERENCE No. WM-580568

lSPEClFICATIONS-—--

Tuner

Frequency range . . . . . . . . .

.......................

Sensitivity . . . . . ...!. .....

Amplifier

Output power ...........

Input Output ............

Graphic equalizer ........

Spectrum analizer .......

Cassette decks

Track system ............

Frequency response ......

Signal to noise ratio .....

Wow and flutter . . . . . . . .

Fast forward /

rewind time ........

Laser disc player

Signal system ............

Video output ............

Audio output ............

RF output ...............

Aerial input ..........,.,

FM :87.5-108 MHz

MW :531-1,701 kHz(9 kHz step)

530-1700 kHz(10 kHz step)

FM :1.8@/ (mono)

Max. 600W (TOTAL P.M.P.O.)

Audio input x 2

Audio output x 1 ,,

Video input x 2

Video output x 2 ,,

5band

4-track, 2-channel stereo

Chrome tapes :40-14,000 Hz

Normal tapes :40-13,000 Hz

60 dB(with DOLBY NR: ON)

0.1 4% (WRMS)

Approx. 110 sec. (C-60)

Conforms to NTSC colour system

1VP-P,75 ohms unbalancedsync.

negative

Digital audio output level 200 mV

rms(l kHz,-20 dB)

Analog audio output level 200 mV

rms(l kHz,40 %)

VHF,F type jack,75 ohms unbalanced,

3ch or 4ch switch type

VHF,F type jack,75 ohms unbalanced

General

Power requirements ., .,,.

Power consumption .......

Dimensions(approx.) ......

Weight(approx.) ..........

Temperature range .......

Humidity range ...........

Speaker systems

Overall frequency

response .......

(L/R speakers)

Type .....................

Unit used ................

Power handling capacity . .

Nominal impedance ......

Dimensions(approx.) ......

Weight(approx.) ..........

AC :110-120/220-240V, 50/60 HZ

130W

360(W) x390(H) x420(D) mm

15.5 kg

+5°C to +35°c

so~tog(j%

40- 20,000Hz

2way bass reflex

13 cm cone type :Woofer

5cm cone type :Tweeter

Max. 70W (peak)

6ohms

185 (W) x390(H) x260(D) mm

5.1 kg (per speaker)

Specifications subject to change without notice.

Dolby noise reduction manufactured under license from Dolby

Laboratories Licensing Corporation.

“DOLBY” and the double-D symbol ❑are trademarks of

Dolby Laboratories Licensing Corporation.

WsTEM(sx4JJ5/ss) “--”---’”-”-”-”””-‘~““-”----”--”-”-’-‘--””’’----’--“-” ‘--”-’-”’

!‘ef IPa”rt No. IDescription I

I]6142307854 IINNER CARTON I

I6142307892 PAD I

I I 6142264041 IWIRE I

I6141769826 INNER POLY LAMINA COVER I

I \ 6141762173 IINNER POLY COVER , .

I‘efIPart No. IDescription ,.

I1I6142306925 IASSY,CABINET,SPEAKER I

I2 6142279496 ASSY,GRILLE I

,,,

,,, ,

,,, ,’.

,,. .

,,,

,,, .,,,

. . . ..

,.,

For the the adjustment &the technical description etc. please refer to the Service technical manual so

that to be issued later. 1’

–l-

AUDIO BLOCK

2.ADJUSTMENT(TU NER)

.Use aplatiic screwdriver for adjustment,

●Adju$t the intermediate frequency of AM and FM to the frequency of ceramic filter.

0RF Level:750hm ,open SGvoltagedB@

[lIFM BAND Antenna:750hm Direct Modulation:lkHz Dev.:f75kHz(mono), t67.5kHz(main), k6.75kHz(Dilot)

STEP ITEMS SG INPUT TP PARTS CONTENTS STANDARDS

TP213(H) TP223(H) T2201 VCURVE

1IF Waveform :to be

TP212(E) TP224(E) suitable.

2COVER VOLTAGE 87.5 MHz —’ TP202(H) L2104 1.2Vk0.05V Confirm less than 8.5V at 90.0

TP201(E) MHz (typ X=7.5V)

3TRACKING 90 MHZ TP211 (H) TP233(L) L2102 MAX Adjust near the IHF sensitivity

106 MHZ TP212(E) TP234(R) L2103

TP235(E) CT201

98.OMHZ

4Ov TP203

,,. ,

66dB TP204 T2202 Ov *0.135V

5Vcov TP206(H) SVR23 19 KHz t50Hz Adjust in the modulation off

TP207(E) after the stereo light on

6SEPARATION Non adjustment confirm at “DEV(MAIN) = ~ 40KHZ”

STEREO SENSITIVITY 98.OMHZ Non adjustment Confirm the Stereo light on during

716dB-30dB (typ= 22dB)

(2) AW BAND Antenna :1 KHz Loop, Modulation: 400Hz 30% RF Level, Open SG voltaqe dBW

STEP IITEMS ISG IINPUT ITP IPARTS ICONTENTS ISTANDARDS

1COVER VOLTAGE 531 KHZ _TP202(H) Non adjustment Confirm “1.2 V-1.5V at 522 kHz”

1701 KHZ TP201(E) “s8.ol/V at 1701 kHz”

603 KHz LOOP ANT. TP233(L) Confirm near the effective

2TRACKING 1404KHZ TP234(R) ‘on adjustment sensitivity (only necessary case)

TP235(E)

AUTOSTOP

3999 KHZ Non adjustment -onfirm ““Jtostop at 9’ ‘B”

SENSITIVITY B5dB Confirm “not autostop at 77 dB”

It is not necessary to adjustment in AM BAND. But please confirm in the necessary case. And refer to Parts

locations concerning TP. and adjustment parts.

3. REM’OTE CONTROLLER, RB-LD5/SS

,,! L!il

+’.

. ....+..

:: ’:,:(,

Ref No. Part No. Description

116142320532

ASSY,REMOCON

2 6142303016 LID,BATTERY

—2’

–2-

PARTS LOCATIONS(TUNER)------- ‘--

TO MAIN PCB

II1

ttt

00 •1

–3-

,, 4.TAPE MECHANISM ADJUSTMENT

a. REPLACEMENT OF THE HEAD SLIDE ASS’Y (1 14) al;7

.It is essential to maintain the precision of the head slide

assembly area, which is most easily achieved by raplac-

in~ the whole head slide unit as a discrete assembly. p136

(a)

(1)

(2)

(3)

(4)

(5)

1’

Replacement procedure

Remove the rubber cushions (139). (0)

If the rubber cushions (1 39) in the figure ara provided

with spacer sheets (143), ensure that the sheets are not

dameged while removing the cushions.

Ramova tha pinch rollers (1 36, 137). (@, @))

Remove the tension springs (1 17). (@)

Remove the head slide section. @)

After the head slide section has been replacad, meke

sura that the head slide does not rest upon the post pin

of the take-up move gear (213) when the new section is

being inatallad. (~)

Also, insart the selector lever (112 into tha 9ap in the

center of the head slide aasembly. [@). @

139+$

(143) -

(b) MOUNTING OF SPRING WIRE (1 18)

(1) Insert the spring wire (1 18) for heed slide resetting into

the slit provided in the capstan, as shown in the figure.

GUI I

●REPLACEMENT OF THE ROTARY

HEAD REVERSE SECTION

IFORWARD I

,’

(109, 110) TAPE GUIDE

(1) Check that the springs (109, 11 O) for the pinch wires

(~swlN:(lo9.1to)

are as shown in tha figure.

-4- ,

TAPE MECHANISM ADJUSTMENT

(d) Checking the head click spring wire (1 16)

(l) Check that the head reverse spring wire (116) is as

shown in the figure .

(e) RePlecing the click swing wire (1 16)

(1) Align the topmost tooth with the timing mark on the

head rotary gear (1 14), and attach the sector lever

(112).

(2) Mount the head click spring wire (1 16) in the forward

mode in the sequence of @and @,

(3) Change over to the reverse mode, and check that the

wire is as shown in the ficwre.

(FORWARD) (REVERSE)

HEAD ROTARYGEAR(114)

QoAlign the topmost tooth

,. with the timing mark.

-r=

HEAD CLICK

SPRINGWIR

(116) 9%&,,;,,l,l

(FORWARD) (REVERSE)

(f]

(1)

(2)

(3)

(4)

REPLACEMENT OF THE ROTARY HEAD

.When replacing the heads, check Rotary Head

that the soldered area on the rotary (102,103)

head and the lead wires are rein-

forced by an adhesive (Cemedine). Cemedine (#575)

Align the projection in the rotor with the erase heed side

of the rotary head, and screw them together (using 2Twist these stands two or

screws). three times.

Apply the TB- 1401 Bthread-lock agent to the areas

shown in the figure to lock them into place.

To loosen the screws securing the head or to stop play

(reverse), set the mode to play (forward).

In the play mode, the head slide will move forward.

Ensure that the bundled wires have some leeway at this

point. :Lf$,,:lB~@

Rotary Head

TAPE MECHANISM ADJUSTMENT

a. HEAD REPLACMENT AND AZIMUTH ADJUSTMENT

(a)

(b)

Note:

(1) After replacement, demagnetize the heads by using adegaukser.

(2) Be sure to clean the heads before attempting to make any adjustments,

~3) Be sum both channels (1 and 2) are the same level [Using adual-channel oscilloscope.)

(4) All wiring should be returned to the original position after work is completed.

Head replacement and Lead wire connections

TAPE”# PLAY HEAD IP

n,* TAPE%”RIP HEAD

I I I

III

~A~E ,, A,,, ,, B“Head azimuth adjustment

(1) Load atest tape (VTT-703etc., :10kHz) in Tape

Deck “A“.

(2) Press the PLAY (>) button (normal playback).

(3) Use aflat-tip (-) screwdriver to turn the screw for

normal azimuth adjustment so that the left and right

outputs are maximized at the same phase during nor-

mal playback).

(4) Press the tape PLAY [<) button [reverse play-back).

[5) Play the tape in the reverse mode.

(6) Use aflat-tip( - ) screwdriver to turn the screw for

reverse azimuth adjustment so that the left and right

outputs are maximized at the same phase during

reverse playback,

[7) Press the STOP button.

[8) Repeat step (2) -[7).

[9) Repeat procedure for tape Deck” El”, ●After completion of the adjustment, use threadlock

(TB-1 401 B) to secure the azimuth-adjustment

screws,

,, :,$....%

–6–

TAPE MECHANISM ADJUSTMENT ----------- ----

—-.—.,.

b. MOTOR AND MAIN BELT REPLACEMENT

(a) Motor replacement ,,

(1) When the motor is being replaced, take care not to app-

ly unnecessary force to the belt or to mark it in any way.

(2) Refer to the figure for the angle at which the motor is to ‘

be installed.

(3) Check the installation dimensions of the motor pulleys. v

(b)

(1)

(2)

(3)

(4)

(5)

(6)

‘~+’,,

Main belt replacement

Install the bracket motor as shown in the figura

Thread the belt over the motor pulleys. @

Take care with the assembly to ensure that the b

not sandwiched between the outside of the fl

and the bracket motor when the bracket motor

ed in the direction of the arrow @

Thread the belt as shown in the figure @, @.

Rotate the flywheel and check that the belt is turning em

properly.

Secure the bracket motor using the

;,, I

Exercise caution when installing

-7– \

5.ADJUSTMENT(TAPE DECK)

Amplifier Adjustment

Item Test Tape Input Dolby output AdjustPoint Remarks

CN373

>Head tiimuth VTT738 -Azimuth Screw Adjust so as 10kHz output become

Adj. terminal maximum.

2Playback TCC130 -CN373 SVR30,31 (DK-1) Adjustment so as TAPE OUT output

Level Adj. terminal SVR32,33(DK-2) become 0.54V.

3Osc AC224 86kHz OFF ●3L3300 Beat Cansel SW,l :Adjust 86 kHz.

adjusting screw Beat Cansel SW,2:Confirm83 t2kHz.

19kHzkHz2 CN373 L3730,3830 Adjust so that output at 19 kHz

419kHz AC224 10kHz OFF Adj. terminal become -30dB in comparison at 400

adjusting screw Hz

5Ret/Play AC224 lKHz ON CN373 SVR36 Adjust to obtain same output of

Frequency 10KHZ Adj. terminal SVR37 lkHz and 10kHz.

6Rec /Play AC224 1KHz(-5dB) OFF CN373 SVR34 Adjust to obtain same output of

Level Adi. terminal SVR35 lkHz and 10kHz,

Input terminal: LINE IN

Note. 1.Perform BIAS aligment by SVR 36,37 so as No.6 satisfy spec of all item.

2.During aligment,mesurement Beat cancel SW is at 1condition fundamentally,cf m. R/P frequency

characteristic,dolby effect also by 2condition, when ship out set SW to 1position.

3.Gripe the lead wire of Ehead (:surface of the wire cover.)

*Operate the Mechanism with the normal speed.

Tape Speed Adjustment Begin from the high speed in Motor speed adjustment.

1) Setthe testtape.TCW-211 (or equivalent) to R/P mechanism(/TAPE B).

Adjustment should be made at the center portion (FWD Play) on the tape.

2) Play the mechanism in FWD Play.

3) Short the high speed test pinto the high speed portion. (bythe clip.)

4) Confirm sothat a frequency counter reading of high speed become 3000Hz f10% at the center position

in Deck 2.

5) After the high speed adjustment,open the high speedtest pin.

6) Stop the mechanism drive.

7) Setthe test tape. MTT-l 11(or equivalent) to Pmechanism(TAPE A)

Adjustment should be made at the center portion (FWD Play)on the tape.

8) Playthe Mechanism(FWD Play).

9) Adjust SVR51sothat a frequency counter reading become less301OHZ*10HZ in Deck 1near the FWD Play

tape center.

10) Confirm sothat a frequency counter reading of the speed difference between TAPE Aand TAPE Bbecome

“(TAPE A) -(TAPE B) = + 50-- 50Hz” .

12) Stop the mechanism drive.

Note: Prior the mesurements,clean the head,capstan and pinch roller.

Item Take-up torque Back tention Tape tension

PLAY:TW211 lA(FWD) PLAY/F. F:lW21 11A PLAY/F. F:TW21 11A

Test cassette PLAY: TW2121A(REW)

FFWD/REW;TlIV2231 PLAY/REW:lW2121 APLAYIREW:TW2422A

PLAY 30-60 gr.cm 2-5.Ogr.cm >80g

F.FWD 70-140gr.cm -

REW 70-140 gr.cm

–8–

PLAY LEVEL ADJ.

Deck-1 Rch Deck.1 Lch ~~~ FILTER ADJ. MECHANISM

Deck-2 Rch n.ack.> Irh rch IHi-Speed TP

CN301 OECK1

“El%%’---” =2 \r1AD4B1OA6718O

CN373

~DECK ADJ. ‘r

ron

710

1C371

8PBB 14

lL.J

L3730

0L3830

DOLBY 1

IC373

9RP 16 -+

REC L

‘EVEL USVR36 7

PBA J42S

--.--

10 1

2EI

IC31O LC6S306A

22 30 42

II~>v.,,

\I1C37’ K

I+__.__& —R31L7

bPBB

CN371

RL~E

t-m; SVR36

CN372

e,:

aSVR37

R–TAPEB L

L3300

❑CN305 CN30fI

R3307~

—

Rch Lch Rch Lch C)SC FREQ. ADJ.

BAIAS ADJ. R/P LEVEL

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