Daewoo DV-K813S Series User manual

Service Manual
S/M No. :VK813SEEF0
Aug.2000
DAEWOO ELECTRONICS CO., LTD.
http ://svc.dwe.co.kr
Video Cassette Recorder
Model: (SECAM MODELS)
DV-K813S / K413S / K213S Series
DV-K823S / K423S / K223S Series
DV-K843S / K443S / K243S Series
DV-K863S / K463S / K263S Series
DV-K873S / K473S / K273S Series
DV-K893S / K493S / K293S Series
DV-K9A3S / K4A3S Series
ALL K60-MECHA (Hi-Fi/MONO)
DV-K813S
DV-K893S
DV-K833S
F2GHA0
DV-K863S
A

1
TABLE OF CONTENTS
SAFETY & PRECAUTIONS.............................................................................................. 2
EXTERNAL VIEWS......................................................................................................... 4
FRONT VIEWS FUNCTION.................................................................................................................... 4
REAR VIEWS FUNCTION...................................................................................................................... 6
ELECTRICAL ADJUSTMENT............................................................................................ 7
SPECIFICATIONS ......................................................................................................... 8
VOLTAGE CHART ........................................................................................................ 9
CIRCUIT DIAGRAM...................................................................................................... 14
POWER CIRCUIT DIAGRAM................................................................................................................. 14
SYSCON CIRCUIT DIAGRAM............................................................................................................... 15
A/V CIRCUIT DIAGRAM (SECAM)......................................................................................................... 16
PIF CIRCUIT DIAGRAM........................................................................................................................ 17
HI-FI & SW CIRCUIT DIAGRAM............................................................................................................. 18
SW CIRCUIT DIAGRAM ....................................................................................................................... 19
SHUTTLE / PATH JIG DIAGRAM............................................................................................................. 20
WAVEFORMS ON VIDEO CIRCUIT ................................................................................ 21
COMPONENTS LOCATION GUIDE ON PCB BOTTOM VIEW ............................................ 24
PCB MAIN.......................................................................................................................................... 24
DISASSEMBLY ............................................................................................................. 25
PACKING ASS’Y .................................................................................................................................24
FRONT PANEL ASSEMBLY ................................................................................................................... 26
INSTRUMENT DISASSEMBLY ................................................................................................................. 30
ELECTRICAL PARTS LIST ............................................................................................... 36
PCB MAIN AS .................................................................................................................................... 36
APPENDIX (Appendix is provided only by internet http://svc.dwe.co.kr)
TROUBLE SHOOTING FLOW CHART ............................................................................. 1
POWER CIRCUIT.................................................................................................................................1
PIF CIRCUIT........................................................................................................................................ 3
SERVO-SYSCON CIRCUIT.................................................................................................................... 4
AUDIO CIRCUIT (NORMAL) ................................................................................................................. 12
VIDEO CIRCUIT .................................................................................................................................. 15
µ-COM PORT............................................................................................................. 22
SERVICE MODE ......................................................................................................... 26

2
SAFETY&PRECAUTIONS
SAFETY CHECK AFTER SERVING
Examine the area surrounding the repaired location for damage or deterioration. Observe that screw, parts and wires
have been returned to original positions. Afterwards, perform the following tests and conform the specified values in order
to verify compliance whit safety standards.
1. Insulation resistance test
Confirm the specified insulation resistance between power cord plug prong and externally exposed parts of the set
(RF terminals, antenna terminals, video and audio input and output terminals, microphone jacks, earphone jacks, etc.)
isgreater than values given in table 1 below.
2. Dielectric strengthen test
Confirm specified dielectric strengthen between power cord
plug prongs and exposed accessible parts of the set
(RF terminals, antenna terminals, video and audio input output
terminals, microphone jack, ear phone jacks, etc.)
is greater than values given table 1.
3. Clearance distance
When replacing primary circuit component, confirm specified clearance distance (d), (d’) between soldered terminals,
and between terminals and surrounding metallic parts. See table below.
Rating for selected areas
* : Class model only
AC Line Voltage Region Insulation
Resistance Dielectric Strength Clearance Distance(d),(d’)
100V Japan
> 1 MΩ /500V DC 1
kV AC1min.
> 3
110 to 130V USA &
Canada -900V AC 1min.
> 3.2
* 110 to 130V
200 to 240V
Europe
Australia
Latin America
> 10 MΩ /500V DC 4 kV AC 1min.
> 6(d)
> 8(d’)
(a :Power cord)
This table is unofficial and for reference only. Be sure to confirm the precise values for your
particular country and locality
NOTE

3
SAFETY&PRECAUTIONS
4. Leakage current test
Confirm specified or lower leakage current between B(earth
ground, power cord plug prongs) and externally exposed accessi-
ble parts (RF terminals, antenna terminals, video and audio input
output terminals, microphone jacks, earphone jacks, etc.)
Measuring method:(Power ON) Insert load Z between B(earth
ground, power cord plug prongs) and exposed accessible parts.
Use on AC voltmeter to measure across both terminals of load Z.
See figure2 and following table.
Leakage current ratings for selected are as
AC Line Voltage Region Load Z Leakage Current(i)Clearance Distance(d),(d’)
100V Japan 1
KΩi<
1 mA rms Exposed accessible parts
110 to 130V USA &Canada
15k m F
1 KΩi<
0.5 mA rms Exposed accessible parts
110 to 130V
200 to 240V Europe Australia 2
KΩi<
0.7 mA peak
i< 2 mA dc Antenna earth terminals
50 KΩi<
0.7 mA peak
i< 1 mA dc Other terminals
This table is unofficial and for reference only. Be sure to confirm the precise values
for your particular country and locality.
NOTE

4
1. FRONT VIEWS FUNCTION
DV-K813S FRONT VIEW
DV-K823S FRONT VIEW
DV-K833S FRONT VIEW
DV-K843S FRONT VIEW
EXTERNAL VIEWS

5
DV-K863S FRONT VIEW
DV-K873S FRONT VIEW
DV-K893S FRONT VIEW
DV-K9A3S FRONT VIEW
POWER REWIND / REVIEW
STOP / EJECT FAST FORWARD / CUE
RECORD PLAY BACK
FRONT VIDEO/AUDIO INPUT JACK CHANNEL UP / DOWN
-
+
LR
EXTERNAL VIEW

6
EXTERNAL VIEWS
2. REAR VIEWS FUNCTION
MONO 2 SCART TYPE REAR VIEW
HI-FI 2 SCART TYPE REAR VIEW

7
ELECTRICAL ADJUSTMENT
1. PLAYBACK PHASE
ADJUSTMENT PROCEDURE
1. Play back the test tape. (DP-2)
2. Set the oscilloscope to the CHOP mode. Connect CH1 to the SW PULSE (PIN 4 of P504)
3. Connect CH2 to the ENVE signal (PIN5 of P504)
4. Insert PATH JIG and press "REC" button on the remote control.
5. Check the position of the V-sync from the rising edge of the SW pulse.
(Standard : 6.5H ± 0.5H)
ITEM MODE ADJUSTMENT
POINT CHECK POINT TEST EQUIPMENT TEST TAPE INPUT SIGNAL
6.5H
ADJUSTMENT PLAY [REC] BUTTON PIN 4 & PIN 5 OF P504 OSCILLOSCOPE DP-2 NO SIGNAL
ADJUSTMENT PARTS MEASURING POINT
PCB : MAIN - TOP VIEW
TMI
BLOC PRE-
AMP
P50
TO PATH JIG
OSCILLOSCOPE
CH1 CH2
PATH JIG

8
SPECIFICATIONS
CHANNEL COVERAGE
INPUT/OUTPUT JACK TYPE
GENERAL
Power Requirement
Power Consumption
Temperature
Operating position
Dimensions (W x H x D)
Weight
Format
Tape Width
Tape Speed
Maximum Recording Time with full-size cas-
sette
AC 230V, 50Hz
Max. 17W (in REC mode)
5 × C ~ 35 × C (Operating)
-20 × C ~ 60 × C
Horizontal only
360 x 90 x 288 (mm)
Approx. 3.85 Kg
VHS standard
12.65mm
(SP) : 23.39mm/sec
(LP) : 11.70mm/sec
(SP) :240min, with E-240 video cassette
(LP) :480min, with E-240 video cassette
VIDEO
Signal system
Recording system
Input
Output
Signal-to-Noiseratio
Horizontal resolution
PAL colour and CCIR monochrome signals, 625 lines/50 fields
Rotarytwo-headhelical scanwitha slantdouble-azimuthcombinationvideo
head
1.0Vp-p, 75ohms, unbalanced
1.0Vp-p, 75ohms, unbalanced
45dB (Rhode &Schwarz noise meter) withNETTETE IMAGE control at cen-
ter position
240 lines with NETTETE IMAGE control at center position
AUDIO
Recording system
Input
Output
Frequency Range
Signal to Noise Ratio
Audio Distortion
Longitudinal track
-8dBm, (CENELEC standard),more than 47 k-ohms, unbalanced
-6dBm, (CENELEC standard), less than 1k-ohms, unbalanced(100k-ohms,
load)
100Hz to 8,000Hz
More than 38dB
Less than 3% (SP)
TUNER
Tuningsystem
RF Output Voltage synthesized tuner Programmable V/S 99CH (Hyper band) UHF channel 21~69 (52)
TIMER
Memory programmable
Back up time
Clock exactness
99 CH
Less than 1 Min.
In accordance with the exactness of power supply frequency (50Hz)
ACCESSORIES
ProvidedAccessories Remote control unit, RF Cable, Battery
SYSTEM
PAL, SECAM-B/G, PAL-I/I
PAL, SECAM-B/G, D/K, HYPER BAND
CHANNEL
VHF Ch 2~12
UHF Ch 21~69
CATV Ch X,Y,Z S1~S41
Model EUROPE
Jack Type SCART Type
* Design and specification can be subjected to change without notice.

9
VOLTAGE CHART
PDC/VPS IC
(IC151, LC74793)
PIN NO. REC PB
100
22.64 2.68
32.68 2.72
400
500
63.7 3.7
73.9 3.9
84.98 5.12
9 0 4.74
10 0 0
11 1.63 3.18
12 1.63 3.18
13 0.82 1.35
14 0.01 0.01
15 5.09 5.12
16 2.75 3.02
17 2.55 2.57
18 4.67 4.72
19 5.01 5.02
20 4.99 5.06
21 0 0
22 3.74 3.79
23 5.05 5.11
24 5.08 5.13
EEPROM
(IC503, ATM24C16)
PIN NO. REC PB
100
200
300
400
53.9 3.9
63.9 4
700
85.24 5.29
MOTOR DRIVE IC
(IC502, KA3082)
PIN NO. REC PB
100
20.55 0.55
38.78 0.88
46.24 6.24
50.01 0.01
60.01 0.01
712.12 11.74
812.12 11.74
90.91 0.91
10 0.55 0.55
SECAM.L IC (IC361, LA7358M)
PIN NO. REC PB
12.5 2.5
222
344
4- -
500
633
700
800
92.6 2.6
10 2.6 2.6
11 2.4 2.4
12 2.6 0
13 4.4 4.4
14 2.6 2.6
15 3 2
16 2.8 2.8
17 05.1
18 02.6
19 2.1 2.1
20 2.3 2.3
21 2.6 2.6
22 2.6 2.6
23 5 5
24 5 5
25 3 3
26 3 3
27 4.5 2.8
28 4.5 0.1
29 - -
30 - -

10
VOLTAGE CHART
A/V ICHIP IC (IC301, HA118517F, HITACHI SHRINK VERSION)
A/V SW IC (IC601, MM1443XJ)
PIN NO. REC PB PIN NO. REC PB PIN NO. REC PB PIN NO. REC PB
12.5 2.5 26 2.1 2.1 51 0 0 76 2.2 2.4
22.5 2.5 27 0 0 52 2.4 2.4 77 4.5 4.5
3 0 0 28 2.8 2.8 53 2.8 2.8 78 2.8 2.8
42.5 2.5 29 1.9 1.9 54 1.9 1.9 79 3.78 2.1
5 0 0 30 2.8 2.8 55 2.1 2.1 80 2.5 2.6
61.4 0 31 2.8 2.8 56 2.8 2.8 81 1.2 2.4
72.5 2.5 32 0 0 57 2.5 2.5 82 2.4 2.4
82.5 2.5 33 0 0 58 2.8 2.8 83 2.2 2.2
92.5 2.5 34 0 0 59 2.8 2.8 84 0 3.3
10 2.5 2.5 35 2.7 2.7 60 2.8 2.8 85 0 0
11 2.5 2.5 36 5 5 61 5 5 86 2.3 2.1
12 5 5 37 0.1 0.1 62 5 5 87 2.3 2.1
13 2.1 1.6 38 5 5 63 5 5 88 2.3 2.1
14 2.1 1.6 39 2.7 2.7 64 4.25 4.25 89 2.3 2.1
15 2.3 2.3 40 5 5 65 2.1 2.3 90 5 5
16 0 0.7 41 5 5 66 5 5 91 2.3 2.1
17 2.5 1.8 42 1.7 1.7 67 5 5 92 2.3 2.1
18 2.1 2.1 43 5 5 68 0 0 93 2.3 2.1
19 2.8 2.8 44 2.5 2.5 69 2.5 2.5 94 2.3 2.1
20 2.8 2.8 45 0 0 70 2.5 2.5 95 2.8 2.8
21 2.1 2.1 46 1.9 1.9 71 2.1 2.1 96 5 5
22 2.4 2.2 47 0 0 72 1.7 1.7 97 0 0
23 2.8 2.8 48 0 0 73 2.1 2.1 98 2 2
24 2.1 2.1 49 0 0 74 2.7 2.7 99 0 0
25 1.4 1.4 50 0.3 0.3 75 2.1 2.1 100 2.5 2.5
PIN NO. REC PB PIN NO. REC PB PIN NO. REC PB PIN NO. REC PB
1 3 3 10 6 6 19 0 0 28 2.8 2.8
2 12 12 11 0 0 20 6 6 29 2 2
3 3 3 12 6 6 21 6 6 30 3 3
4 12 12 13 0 0 22 6 6 31 2 2
5 3 3 14 6 6 23 6 6 32 - -
6 6 6 15 0 0 24 6 6 33 - -
7 6 6 16 6 6 25 6 6 34 0 0
8 6 6 17 0 0 26 6 6
9 0 0 18 0 0 27 6 6

11
VOLTAGE CHART
HI-FI IC (IC251, TDA9605H)
PIN NO. REC PB PIN NO. REC PB PIN NO. REC PB PIN NO. REC PB
1 0 0 12 0 0.03 23 3.85 3.81 34 9.42 9.36
23.81 3.81 13 3.83 3.83 24 3.86 3.77 35 4.21 0.53
33.81 3.81 14 0 0 25 3.86 3.85 36 4.2 0.53
4 0 0 15 3.33 3.31 26 0.74 0.7 37 4.18 0.53
5 0 0 16 4.56 4.56 27 0 0 38 4.2 0.17
63.81 3.81 17 4.55 4.56 28 3.82 3.82 39 0 0
73.81 3.81 18 3.31 3.29 29 3.85 3.82 40 5.05 5.09
83.81 3.81 19 4.56 4.56 30 0.72 0.7 41 0.93 0.94
93.81 3.81 20 4.56 4.56 31 3.86 3.81 42 3.75 3.7
10 3.81 3.81 21 4.56 4.56 32 3.86 3.79 43 3.95 4
11 3.81 3.81 22 3.81 3.81 33 3.86 3.77 44 1.74 2.1
NICAM IC (IC051, MSP3417DQ)
PIN NO. EE PIN NO. EE
10.03 27 0
22.29 28 0
30.01 29 0
40.01 30 3.69
5 0 31 3.7
64.95 32 0
73.95 33 8.25
83.7 34 6.57
9 0 35 0
10 0 36 3.66
11 037 0
12 0 38 0
13 0 39 3.68
14 0 40 3.68
15 0 41 3.68
16 4.95 42 3.68
17 0 43 2.54
18 0.01 44 3.69
19 0 45 0
20 5.1 46 4.92
21 0 47 1.5
22 0 48 1.5
23 0 49 0
A2 IC (MSP3407DQ)
PIN NO. EE PIN NO. EE
10.01 27 0
2 0 28 0
30.01 29 0
40.01 30 3.72
5 0 31 3.73
65.02 32 0
73.6 33 8.15
83.3 34 6.47
92.47 35 0
10 2.46 36 3.68
11 2.43 37 0
12 0.02 38 0
13 0.03 39 3.71
14 0.02 40 3.71
15 0.02 41 3.71
16 5.02 42 3.71
17 0 43 2.57
18 0.02 44 3.72
19 0.01 45 0
20 5.12 46 4.98
21 0 47 1.51
22 0 48 1.51
23 0 49 0

12
VOLTAGE CHART
TMI (RF101, LGTMI-SLQ1-S)
PIN NO. REC PB PIN NO. REC PB PIN NO. REC PB PIN NO. REC PB
14.83 4.9 731.9 31.9 13 4.9 0 19 1.08 0
2 0 0 8 1.91 0 14 4.9 0 20 0.23 0.03
33.7 3.7 9 0 0 15 0 0 21 2.43 0
44.85 4.9 10 0 0 16 31.9 31.9 22 2.01 0.01
5 4 3.9 11 3.9 4 17 0 0 23 2.69 0
6 0 0 12 3.7 3.7 18 0 0 24 2.74 0
24 1.66 50 0
25 1.69 51 2.32
26 0 52 2.26
PIN NO. EE PIN NO. EE
24 1.69 50 0
25 1.7 51 2.35
26 0 52 2.27
PIN NO. EE PIN NO. EE
REGULATOR IC
(IC802, KA431AZ)
PIN NO. REC PB
12.49 2.49
2 0 0
34.82 4.82

13
VOLTAGE CHART
METHOD TO DISCRIMINATE WHICH VIDEO IC IS APPLIED FOR EACH K-MECHA MODEL
MODEL K30 K40 K50 K60D K60S
APPLIED
VIDEO IC
HITACHI SANYO SANYO HITACHI SANYO
HA118511F HA118517F
(SHRINKTYPE) LA71594M LA71594M LA71598M HA118517F LA71594M LA71598M
LA71598SM
(SRINK TYPE) LA71598SM (SRINK
TYPE)
ADJACENT
COMPO-
NET
VALUES
WHICH
HAVE TO
BE
MODIFIED
ACCORD-
ING
TOTHE
APPLIED
VIDEO IC
LOC.
C210 (R) 2.2uF/50V 10uF/16V 2.2uF/50V
C305 (C) 39pF 56pF 56pF
C415 (R) 10uF/16V 2.2uF/50V 10uF/16V
L302(A) 82uH 150uH 150uH
(RADIAL)
R304(A) 1.3K OHM 2.2K OHM 2.2KOHM
R307 (C) 1.8M OHM DELETE DELETE
RJ37 (C) DELETE 3216 TYPE 3216 TYPE
R303 (C) 10KOHM 10K OHM 20KOHM 10K OHM 20K OHM
R304(A) 18K OHM 18KOHM 10K OHM 18K OHM 10K OHM
PCB MARKING (S/N) 97P65221MA 97P65251MA 97P65260MA 97P65270MA 97P65272MA
PCB MARKING (B/W INVERTED CHR.) K60D K60S

14
CIRCUIT DIAGRAM
1. POWER CIRCUIT DIAGRAM (230V ONLY)

15
CIRCUIT DIAGRAM
2.SYSCON CIRCUITDIAGRAM

16
CIRCUIT DIAGRAM
3. A/V CIRCUIT DIAGRAM (SECAM)

17
4. PIF CIRCUIT DIAGRAM
CIRCUIT DIAGRAM

18
CIRCUIT DIAGRAM
5. HIFI & SW CIRCUIT DIAGRAM

19
CIRCUIT DIAGRAM
6. SW CIRCUIT DIAGRAM