Sanyo CE25DN9 Schematic

Part No. SKSM0711 C5VRL JUNE 2004

Colour Television
Service Manual

Model CE25DN9-B

Service Ref. No. CE25DN9-B-01

PRODUCT CODE: 111360913
ORIGINAL VERSION: Chassis No. EB8-A

Give complete "SERVICE REF. NO." for parts
order or servicing, it is shown on the rating sheet
on the cabinet back of the TV set.

Note
This TV receiver will not work properly in foreign
countries where the television transmission
system and power source differ from the design
specifications. Refer to the specifications for the
design specifications

CE25DN9-B

Contents

Safety precautions/Specifications ..................................................................................................................2

Block diagrams ..............................................................................................................................................3

Cabinet Disassembly......................................................................................................................................4

Adjustment and Repair Procedures............................................................................................................5~9

CPU Functions..............................................................................................................................................................................10~1 1

Component Locations ..................................................................................................................................12

IC Block Diagrams..................................................................................................................................13~15

Pin description of semiconductors................................................................................................................16

Part Description and reading of schematic diagram ....................................................................................17

Cabinet Parts List/TV Stand parts list ..........................................................................................................18

Electric Parts List....................................................................................................................................19~24

Please use Schematic Diagram SKP20435
inserted with this Service Manual.

Part No. SKSM0720 C7WAS JULY 2004

Colour Television
Service Manual

Model CE28DN9-B

Service Ref. No. CE28DN9-B-01

PRODUCT CODE: 111373100
ORIGINAL VERSION: Chassis No. EB8-A

Give complete "SERVICE REF. NO." for parts
order or servicing, it is shown on the rating sheet
on the cabinet back of the TV set.

Note
This TV receiver will not work properly in foreign
countries where the television transmission
system and power source differ from the design
specifications. Refer to the specifications for the
design specifications

CE28DN9-B

Contents

Safety precautions/Specifications ..................................................................................................................2

Block diagrams ..............................................................................................................................................3

Cabinet Disassembly......................................................................................................................................4

Adjustment and Repair Procedures............................................................................................................5~9

CPU Functions..............................................................................................................................................................................10~1 1

Component Locations ..................................................................................................................................12

IC Block Diagrams..................................................................................................................................13~15

Pin description of semiconductors................................................................................................................16

Part Description and reading of schematic diagram ....................................................................................17

Cabinet Parts List ........................................................................................................................................18

Electric Parts List....................................................................................................................................19~24

Please use Schematic Diagram SKP20443
inserted with this Service Manual.

-2-

C7WAS

SAFETY PRECAUTION

X-RADIATION PRECAUTION

The primary source of X-RADIATION in the television receiver is the picture tube. The picture tube is specially
constructed to limit X-RADIATION emissions. For continued X-RADIATION protection, the replacement tube
must be the same type as the original including suffix letter. Excessive high voltage may produce potentially
hazardous X-RADIATION. To avoid such hazards, the high voltage must be maintained within specified limit.
Refer to this service manual, high voltage adjustment for specific high voltage limit. If high voltage exceeds
specified limits, take necessary corrective action. Carefully follow the instructions for +B1 volt power supply
adjustment, and high voltage adjustment to maintain the high voltage within the specified limits.

PRODUCT SAFETY NOTICE

SPECIFICATIONS

Product safety should be considered when a component replacement is made in any area of a receiver.
Components indicated by mark in the parts list and the schematic diagram designate components in which
safety can be of special significance. It is particularly recommended that only parts designated on the parts list in
this manual be used for component replacement designated by mark . No deviations from resistance wattage
or voltage ratings may be made for replacement items designated by mark .

1: An isolation transformer should be connected in the

power line between the receiver and the AC line
when a service is performed on the primary of the
converter transformer of the set.

2: Comply with all caution and safety-related notes

provided on the cabinet back, inside the cabinet, on
the chassis or the picture tube.

3: When replacing a chassis in the cabinet, always be

certain that all the protective devices are installed
properly, such as, control knobs, adjustment covers
or shields, barriers, isolation resistor-capacitor networks
etc. Before returning any television to the customer,
the service technician must be sure that it is completely
safe to operate without danger of electrical shock.

Power source AC 220~240V, 50Hz
Television system System I
Colour system PAL/NTSC4.43 (PAL/NTSC4.43/NTSC3.58 IN AV MODE)
Receiving channel UHF: #21~69
Aerial input impedance 75ohm
Rear AV terminal

AV1: CENELEC standard

INPUT: Composite video, RGB and Audio L/R

OUTPUT: TV-output with composite video and audio L/R

AV2: CENELEC standard

INPUT: Composite video, RGB, S-VHS and Audio L/R

OUTPUT: Monitor output with composite video and Audio L/R

Front AVterminal

AV3: RCA jacks

INPUT: Composite video and Audio L/R
Sound output(Music) 5 x 2
Dimensions (WxHxD) 736 x 597 x 494mm
Weight 30.7Kg

!

!

!

-3-

C7WAS

BLOCK DIAGRAM

This is a diagram for all models and therefore differs slightly from the actual block diagram.

Outline

SW601

AC

C609

TN6Q04

IC601

SCAN COIL

VERTICAL

HORIZONTAL

SCAN COIL

V-OUTPUT

LA78045

Q461

IC501

Q462

L462

L461

Q432

D441

Q431

PIN 106

22 23

128

2

Q439

D610

Q675

Q641

St-BY UOC

106

6

84 85 86

Q642

Q625

145v

Q651

+14v

-14v

Q682

IC666

3v3

ON/OFF

UOC PIN 107

107

D671

3v3 St-By

TO UOC PINS

93 & 96

X201

10

11

UOC

7v

1V8_2

Q203

25v

4

Q204

14

14v

1
5v

2

IC645

1V8_1

Q202

Q201

CONVERTER

T611

P.F

3,100,117,118,124

TO UOC PINS

I

IC801

MEMORY

2

C BUS CONTROL

9

9

12031127

60 61

97

108 109

KEY SW

SPEAKER

SP901

SP902

IC001

AUDIO AMPLIFIER

PF

Q866

5

A1901

RC RECEIVER

ON/OFF CONTROL

CPU PIN 106

Q402

Q403

To CRT

200v

Q401

145V

CRT

Heater

T451 FLYBACK

SCREEN & FOCUS

H.V

IK

K1101

BOUT

IC7 01

515354

AV3 AUDIO L/R & VIDEO IN

GOUT

R OUT

PICTURE TUBE

49

50

58

62

63

SCART 2 AUDIO L/R OUT

SCART 2 AUDIO L/R IN

48

SC_2 VIDEO IN

K1002

SCART 2

75

72

71

70

SC_2 VIDEO OUT

SC_2 R-IN

SC_2 B- IN

SC_2 G -IN

SC_2 FB -IN

Q1003

Q1004

553435

36

37

SCART 1 AUDIO L/R IN

SCART 1 AUDIO L/R OUT

K1001

SCART 1

SC_1 VIDEO IN

43

SC_1 VIDEO OUT

Q1001

Q1002

807978

77

SC1 FB IN

SC_1 R-IN

SC_1 G-IN

SC_1 B-IN

30

29

X122

25

X121

SIF IN

24

IF IN

TUNER

A101

5v30v

-4-

C7WASÍ

(A)

(A)

CABINET DISASSEMBLY

CABINET BACK DISASSEMBLY

1. Remove 9 screws(A) for 28”

2. Pull out the cabinet back.

(A)

(A)

(A)

(A)

(A)

(A)

(A)

-5-

C7WAS

OPTION SETTING

[After replacing the Memory IC (IC801)]

The memory IC, IC801, stores the option data of TV set and service adjustments data for each circuit, therefore,
when the memory IC is replaced, it should be programmed to the following settings and “SERVICE ADJUSTMENT”
on pages 6 to 9.

To enter to the Option Mode

+ Press and hold the F/OK button on the remote control and P▼ button on the front panel of the TV. The option

window will appear on the screen.

To set the Option Mode

+ Highlight the desired option item by using the P▲ or P▼ button .
+ To switch the option mode, use the Volume - (LEFT) or Volume + (RIGHT) button.

+ The data which is set in the option mode is stored into the memory IC automatically.

The following table shows the available option items and default setting mode.

Exit from the Service Mode

+ Press the MENU button.

Option Mode Mode Description & Note

SORT MODE SORTING or Tuning mode, default “SORTING”

TUNING
P & P ON or OFF Plug & Play mode, default “ON”
WEL. TEXT ON or OFF Display message when first set up, default “ON”

AUTO VOLUME ON or OFF Auto volume default “OFF”
SURROUND ON or OFF Surround sound default “ON”
VIRT SUB WOOFER ON or OFF Virtual Sub Woofer default “ON”
COUNTRY UK or IRE or TV system, default “UK”

BG/DK / I / LL’
WIDE ON or OFF Wide mode, default ON
AV3 ON or OFF Front AV disable, default “ON”
TEXT NO SIGNAL ON or OFF Disables Text when no signal, default “ON”
AFC ON or OFF Auto Frequency Control default “OFF”

OPTION MODE FOR CE28DN9-B-01

i

OPTION

SORT MODE SORTING
P&P ON
WEL. TEXT ON
AUT O VOLUME OFF
SURROUND ON
VIRT SUB WOOFER ON
COUNTRY UK
WIDE ON
AV3 ON
TEXT NO SIGNAL ON
AFC OFF

ADJUST : EXIT : RECALL

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C7WAS

SERVICE ADJUSTMENTS

After replacing the Memory IC (IC801)]

The memory IC, IC801, stores the service adjustments data for each circuit, therefore, when the memory IC is
replaced, it should be programmed by using “OPTION SETTING” on previous page and the following adjustments.

ADJUSTABLE SERVICE ADJUSTMENT

Item No. OSD Description

7 VG2 Screen adjustment
151 WPR - N R - Drive adjustment
152 WPG - N G - Drive adjustment
304 AGC Take Over AGC adjustment
314 TXT - H - POS OSD Positioning adustment

IMPORTANT NOTICE

Do not attempt to adjust service adjustments not listed above otherwise it may cause loss of performance and product safety.

GEOMETRY SERVICE DATA

Service Item Number. Symbol 1 Symbol 2

13
14 A02

15 A03
16 A04
17 A05
18 A06
19 A07
20 A08
21 A09
22 A10
23 A11
24 A12
25 A13
26 A14
27 A15
28 A16
29 A17
30 A18 H BLK SW
31 A19 H BLK L
32 A20 H BLK R
33 A21 OSVE
34 A22 EVB
35 B02
36 B09
37 B10
38 B11
39 B12
40 B13
41 B14
42 B15
43 B16
44 B17

A01

Track. mode 50Hz Full

Vert. Zoom 50Hz Full

Vert. Slope 50Hz Full

Vert. Shift 50Hz Full

Vert. Ampl. 50Hz Full

S-Corr. 50Hz Full

V.Lin.Ctrl. 50Hz Full

V.Linearity 50Hz Full

EW Width 50Hz Full
Hor. Shift 50Hz Full

EW Parabola 50Hz Full

Trapezium 50Hz Full

UC Parabola 50Hz Full

LC Parabola 50Hz Full

Hor. Bow 50Hz Full

Parallel 50Hz Full

Vert. Scroll 50Hz Full

Vert. Zoom 50Hz Natural / or 4:3 squeeze mode

EW Width 50Hz Natural / or 4:3 squeeze mode
Hor. Shift 50Hz Natural / or 4:3 squeeze mode

EW Parabola 50Hz Natural / or 4:3 squeeze mode

Trapezium 50Hz Natural / or 4:3 squeeze mode

UC Parabola 50Hz Natural / or 4:3 squeeze mode

LC Parabola 50Hz Natural / or 4:3 squeeze mode

Hor. Bow 50Hz Natural / or 4:3 squeeze mode

Parallel 50Hz Natural / or 4:3 squeeze mode

Vert. Scroll 50Hz Natural / or 4:3 squeeze mode

Frequency Wide Mode

50Hz Full
50Hz Full
50Hz Full
50Hz Full
50Hz Full

Explanation

Track. Mode(HCO)

Vertical zoom

Vertical slope

Vertical shift

Vertical amplitude

S-correction

V.Lin.Ctrl.

V.Linearity

EW width

Horizontal shift

EW parabola/width

EW trapezium
EW upper corner parabola
EW lower corner parabola

Horizontal bow

Horizontal parallelogram

Vertical Scroll

RGB blanking mode
Timing of wide blanking front(WBF)
Timing of wide blanking rear(WBR)

Black current measuring lines in overscan

Extended vertical blanking

Vertical zoom

EW width

Horizontal shift

EW parabola/width

EW trapezium
EW upper corner parabola
EW lower corner parabola

Horizontal bow

Horizontal parallelogram

Vertical Scroll

-7-

C7WAS

To enter to the Service Mode

+ Press and hold the GREEN button on the remote control and then press the P▼ button on the cabinet.

To select the service item and change data value

+ To select the adjustment item, use the P▲ or P▼ button.
+ To change the service data, use the Volume -(LEFT) or Volume + (RIGHT) button.

+ The data which is set in the service mode is stored into the memory IC automatically.

SERVICE MODE

SERVICE SERVICE SOFTWARE
ITEM ITEM VERSION
NUMBER DESCRIPTION

Exit from the Service Mode

+ Press the MENU button or turn off the TV set by using the Mains switch.

INITIALISATION OF MEMORY IC

To initialise the memory IC (IC801), press and hold the NORMAL button on the remote control, then press
the P▼ button on the front panel of the TV set. The tv set will switch into standby mode. Turn the Mains switch Off
and On, then switch on from standby. The initialisation is now completed.
When initialised the memory IC and all of the setting data (option data and service adjustment data) stored in the IC
are reset to the default value. It is necessary to set the option settings and readjust the service adjustments listed in
this manual and to re-tune all the channels.

SERVICE

000 EB8A 3_52

-8-

C7WAS

ADJUSTMENTS

IMPORTANT NOTICE

Do not attempt to adjust the following service adjustments except when adjustments are required in servicing
otherwise it may cause loss of performance and product safety.

1. Receive white raster pattern.

2. Set controls to normal.

3. Connect digital voltmetre to test point TP-B and GND.

4. Adjust voltage to 150 ±0.5V by using VR641.

1. Input and tune an RF signal which is UHF to the clear­est station.

2. Connect digital voltmetre to test point TP-A and GND.

4. Enter the service mode and select item no. 304. AGC

TAKE OVER

5. Press the LEVEL+ or LEVEL - button to adjust volt-

age to be 3.2Vdc.

By using FOCUS VR, adjust focus control for well
defined scanning lines.

SCREEN ADJUSTMENT

1. Receive black and white pattern.

2. Enter the service mode and select item no. 7. VG 2

3. Turn screen VR from min to max. OSD will change

from below to above. Turn back until below appears
and then stop turning.

DRIVE ADJUSTMENT

6. Select item no.151. WPR - N (R-Drive) or 152. WPG -

N (G-Drive) and adjust both initially to 20.

7. Change data value of each item by using LEVEL + or

LEVEL - button to obtain the proper white balance.

PCC ADJUSTMENT

1. Receive cross hatch pattern and set screen mode to
“FULL”.

2. Enter the service mode and select item no. 23. EW
PARABOLA

3. Press the LEVEL+ or LEVEL - button to adjust the

vertical line to be straight.

TRAPEZOID ADJUSTMENT

1. Receive cross hatch pattern and set screen mode to
“FULL”.

2. Enter the service mode and select item no. 24.
TRAPEZIUM

3. Press the LEVEL+ or LEVEL - button to correct the

trapezum distortion of the vertical line.

PCC ADJUSTMENT

GREY SCALE ADJUSTMENT

FOCUS ADJUSTMENT

AGC ADJUSTMENT

+ B VOLTAGE ADJUSTMENT

-9-

C7WAS

CORNER ADJUSTMENT

1. Receive cross hatch pattern and set screen mode to
“FULL”.

2. Enter the service mode and select item no. 25. UC
PARABOLA for top corner adjustment OR item no.

26. LC PARABOLA for bottom corner adjustment.

3. Press the LEVEL+ or LEVEL - button to correct the

distortion of the vertical line around the corners.

HORIZONTAL CENTRING ADJUSTMENT

1. Receive circular pattern and set screen mode to
“FULL”.

2. Enter the service mode and select item no. 22. HOR.
SHIFT.

3. Press the LEVEL+ or LEVEL - button to adjust the

horizontal centre.

HORIZONTAL WIDTH ADJUSTMENT

1. Receive circular pattern and set screen mode to
“FULL”.

2. Enter to the service mode and select item 21. EW
WIDTH.

3. Press the

LEVEL+ or LEVEL - button to adjust the

horizontal width.

1. Receive circular pattern and set screen mode to
“FULL”.

2. Set controls for brightness and contrast to maximum.

3. Connect high-voltage meter to the anode of CRT and
GND.

4. Confirm that voltage is 26 kV ±1.0kV at maximum

beam current 1.2mA ± 0.05

VERTICAL CENTRING ADJUSTMENT

1. Receive circular pattern and set screen mode to
“FULL”.

2. Enter the service mode and select item no.16.VERT
SHIFT.

.3 Press the LEVEL+ or LEVEL - button to adjust the

vertical centre.

VERTICAL HEIGHT ADJUSTMENT

1. Receive circular pattern and set screen mode to
“FULL”.

2. Enter the service mode and select item no. 17. VERT
AMPL.

3. Press the LEVEL+ or LEVEL - button to adjust the

vertical height.

1. Receive circular pattern and set screen mode to
“FULL”.

2. Enter the service mode and select item no. 314. TXT ­H - POS.

3. Press the

LEVEL+ or LEVEL - button to adjust

proper OSD positioning.

OSD POSITIONING ADJUSTMENT

VERTICAL ADJUSTMENT

HIGH-VOLTAGE CONFIRMATION

HORIZONTAL ADJUSTMENT

314 TXT - H - POS 7

-10-

C7WAS

CPU PORT FUNCTIONS

Pin No Function Name Function In/Out

1 VSS Gnd -­2 VSS Gnd
3 1v8_1 1.8v Supply -­4 3v3 3.3v Supply -­5 Vref 3.3v Reference -­6 Vref V Ref Gnd -­7 Vref 3.3v Reference -­8 Vref V Ref Gnd --

9 Vref 3.3v Reference -­10 XTAL IN Clock Oscillator In
11 XTAL OUT Clock Oscillator Out
12 Vss Gnd -­13 Vguard sw -­14 Dec Dig 1.8v source supply Out
15 5v 5v Supply -­16 Phi 2 Phi 2 -­17 Phi 1 Phi 1 -­18 Gnd Gnd -­19 Sec pii -­20 Dec BG -­21 EW Drive parabola out Out
22 VdrB Vertical drive B Out
23 VdrA Vertical drive A Out
24 Vif 1 Vision IF 1 In
25 Vif 2 Vision IF 2 In
26 Vsc -­27 I Ref Reference current -­28 Gnd Gnd -­29 Sif 1 Sound IF 1 In
30 Sif 2 Sound IF 2 In
31 Agc Auto matic gain control In
32 Eht Eht In
33 SSif/Ref Iin/Avl/Ref Out -­34 Audio in Scart L In
35 Audio in Scart R In
36 Audio Out Scart L Out
37 Audio Out Scart R Out
38 -­39 Qsso/Amo/AudioEm -­40 Gnd -­41 PLL IF Phase Lock Loop If -­42 SifAgc SifAgc -­43 IFVo Scart 1 Video Out
44 FmRo -­45 V8Audio Switches -­46 AgcsSif -­47 V5P2 5v Supply -­48 Svo/IfVo/Cbvs1 Scart 2 Video Out
49 Audio4 L In Scart 2 Audio L In
50 Audio4 R In Scart 2 Audio R In
51 Y4/Cvbs4 Av3 Video In
52 C4 -­53 Audio2InL Av3 Audio L In
54 Audio2InR Av3 Audio R In
55 Cvbs2/y Scart 1 Video In
56 Audio3InL -­57 Audio3InR -­58 Y3/Cvbs Scart 2 Video In
59 C3 Scart 2 Chroma In In
60 Audio Out L SL Audio out Left Speaker Out
61 Audio Out L SR Audio Out Right Speaker Out
62 Audio Out HPL Scart Audio L Out 2 / monitor Out Out
63 Audio Out HPR Scart Audio R Out 2 / monitor Out Out
64 Pip --

-11-

C7WAS

CPU PORT FUNCTIONS (continued)

Pin No Function Name Function In/Out

65 SVM Scan Velocity Modulation Out
66 FbiSo Flyback In SandCastle Out In/out
67 Hout Horizontal Drive Out Out
68 VssComb Gnd
69 V5Comb 5v Supply -­70 Vin/R2/Pr Scart 2 R-In In
71 Uin/B2/Pb Scart 2 B-In In
72 Yin/G2/Y Scart 2 G-In In
73 Y Sync Y Sync In
74 Y out Yout Out
75 Uout/Fb in Scart 2 Fast Blanking In
76 Vout/Sw01 -­77 Fbl3 Scart 1 Fast Blanking In
78 R3/Pr Scart 1 R-In In
79 G3/Y Scart 1 G-In In
80 B3/Pb Scart 1 B-In In
81 Gnd 3 Gnd -­82 V5P3 5vSupply -­83 BCL Beam Current Limiting In
84 Iblack -­85 Rout Red Drive Out
86 Gout Green Drive Out
87 Bout Blue Drive Out
88 V3.3A1 3.3v Supply -­89 RefAdn Ref Gnd -­90 V3.3RefAdp 3.3v Supply -­91 RefAd -­92 GndA Gnd -­93 V1.8A 1.8v Supply -­94 V3.3A2 3.3v Supply -­95 VssAdc Gnd -­96 V1.8Adc 1.8v Supply -­97 Into Remote control In In
98 P10/Int1 SCl In/out

99 P121/TO SDA In/out
100 V1.8C2 1.8v Supply -­101 VssC2 Gnd -­102 P04/I2Sws -­103 P03/I2SCLk -­104 P02/I2SDOC -­105 P01/I2SDOC -­106 P00/I2SDi1 StandBy Out
107 P13/T1 On/Off Out
108 P16/SCL SCL In/out
109 P17/SDA SDA In/out
110 V3.3P 3.3v Supply -­111 P20/Tpwm Relay On/Off Out
112 P21/Pwmo LED Drive Out
113 STATUS Status In/out
114 ALK Alk In/out
115 P30/Adco Scart 1 Pin8 Function In
116 P31/Adc1 Scart 2 Pin8 Function In
117 V1.8C1 1.8v Supply -­118 DecV1v8 1.8v Supply -­119 P32/Adc2 AGC In
120 P33/Adc2 Key scan in In
121 VssC1+P1 Gnd -­122 P24/Pwm3 Audio Mute Out
123 P25/Pwm4 L/L’ switch (Export only) Out
124 V1.8C3 1.8v Supply -­125 Vssc3 Gnd -­126 P12/Int2 -­127 P14/Rx Power Fail In
128 P:15/Tx Natural Wide Switch

-12-

C7WAS

COMPONENT LOCATIONS

MAIN BOARD / FRONT BOARD / CRT BOARD

DANGER

LIVE MAINS

SW601

KFF-1

KFF

1

2

KFF-2

F601-1 F601-2

F601

R474

C437

L461

C451

EB8A

C601

Q461

L601

L608

T4AH250V
T4AL250V

Q461-1

A1901

R435

L441

D1901

C446

D1911

C486

C441

KSC

R451

VA601

R441

T451

SW1901 SW1902

C602

R601

KE

KE-2KE-1

2

C609

L442

C443

Q451

KF-2

C427

C481

KF

KF-1

KF

D441

PS601

Q425

C423

IC601

R477

L462

KQ

C429

C421

C422

SW1903

C426

K4A

RL601

R602A

Q432

C424

C466

SW1904

R614

3

KA

R606

KGG

R449

R607

C434

T611

D610

C503

T431

K1002

TP-B

C529

C655

R511

R637

VR641

R433

K4B

C637

D648

D633

D630

D639

C501

R512

C682

D642

C686

R502

IC501

C502

B10E33300

R692

R691

IC643

C650

C685

IC666

R667

C667

C643

D635

C642

Q642

C640

R501

K2

C691

C633

K5

C271

A

1

R515

C710

R699

K7P

R648

C205

R644

KP

K4

1

K1001

IC701

IC801

IC641

C206

8

5

R715

K7V

R705

C645

C288

R725

C283

C648

C281

C268

K701

C803

C210

K3

B10E3330B

***

K7Q

C841

C256

C1001

K1003

C022

JW2

C203

A

R742

K7Y

3

1

K1101

K1101

C023

J006

JW1

C214

X201

C229

C236

C233

C239

TP-A

C102

17

X122

C101

KCPA

JW3

KEM1

X121

C103

KEM2

IC001

C209

C104

K031

T131

A101

JWA

12

KR-2

21
KRKL

KR-1

R031

C009

C010

Q202

B10E3330A

DB=KG_PCB

CELL=B10E33300

A
***

JWB

-13-

C7WAS

IC BLOCK DIAGRAMS

IC001 LA42052 <Audio Output>

Vcc

IC501 LA78041 <Vertical Output>

STAND BY

5 7

IN 2

IN 1

INPUT AMPLIFIER

REFERENCE

AMPLIFIER

3

4

INPUT AMPLIFIER

RIPPLE FILTER

1

RIPPLE FILTER

POP NOISE PREVENTION BLOCK

OUTPUT AMPLIFIER

THERMAL PROTECTION CIRCUIT

OUTPUT AMPLIFIER

6

P.P

12

OUT 1

POWER

10

GND

OUT 2

8

1

INVERTING

2

Vcc

INPUT

3

OUT

PUMP UP

-

AMPLIFIER

+

PUMP

UP

4

GND

THERMAL PROTECTION CIRCUIT

5

6

VER

OUTPUT

OUTPUT STAGE Vcc

7

NON INV. INPUT

-14-

C7WAS

IC601

Block Diagram TN6Q03/04

VDD pin

EDGE pin

FB pin

4

Internal power supply

2

Over heat protection

Over voltage protection

Reference Voltage

Over current/FB comparator

1

Input Under voltage protection

Falling edge detection

Latch
Circuit

Logic

Driver

Oscillator

Burst On

Burst Off

Latch for Burst circuit

3

DRAIN pin

5

SOURCE (GND) pin

-15-

C7WAS

-16-

C7WAS

PIN DESCRIPTION OF SEMICONDUCTORS

● Diode

● Transistor/FET

● IC

FET

● Diode

K

● Transistor/FET

A

K

A

K

AA

KK

A

K

K

K: Cathode
A: Anode

A

A

C

B

C

E

● IC

1

E

3

2

Index

C1

3

E

C2

Vdd

2

1

C1

C2

B1 B2

E

B2

GND

C

C

E

B

C

E

B

B

2

3

1

E

C1

CBE

C2

B2

E

3

2

C

B

B1

1

C

BE

B1

RESET

Index

1

2

N

1

2

N

C2

E2 C1

B1

B2

B1

B2

(IN)

E1

1

(GND)

2

4
5
6

Index

E1

C1
C2

E2

3

(OUT)

C: Collector
B: Base
E: Emitter

G

3
2

1

Index

D: Drain
G: Gate
S: Source

S

G

D

S

D

3

21

5

4

Index

N

1

Index

Index

Index

N

1

N

1

N

1

Index

N

1

N

1

Index

-17-

C7WAS

PARTS DESCRIPTION AND READING IN SCHEMATIC DIAGRAM

1. The parts specification of resistors, capacitors and
coils are expressed in designated code. Please
check the parts description by the following code
table.

2. Some of transistors and diodes are indicated in
mark for the substitution of parts name. Please
check the parts name by the following code table.

3. Voltages and waveforms were taken with a video
colour bar signal(1Vp-p at 75 ohms terminated) and
controls to normal.

4. Voltages were taken with a high-impedance digital
voltmetre.

Example 2000 K K 1000 BG

Characteristic

Example 160 E M 10

Capacitance value

Tolerance
Type
Rated voltage

Excepting electric capacitors, all
capacitance values of less than 1
are expressed in µF and more
than 1 are in pF.

Example L2

C1 4R7 K N

Tolerance
Inductance value
Manufacture code
Unique code

Mark Material

E Electrolytic
P Electrolytic (non-Polarised)
C Ceramic (temperature compensation)
K Ceramic
F Polyester

N Polypropylene
M Metalised polypropylene
H Metalised polypromylar
B Ceramic (semiconductor)
G Metalised polyester
Y Composite film
S Styrol

T Tantalum oxide solid electrolytic
U Organic semiconductive electrolyte
D Electric double layer electrolytic

Mark Tolerance

A not specified
B ±0.1
C ±0.25
D ±0.5
F±1

G±2

E ±2.5
H±3
J±5
K±0

M±20

N±30
P +100 -0

Q +30 -10

T +50 -10
U +75 -10
V +20 -10

W +100 -10

X +40 -20
Y +150 -10
Z +80 -20

Mark Tolerance (nH) Mark Tolerance (%)

C ±0.25 G ±2
D ±0.5 J ±5
S ±0.3 K ±10
A ±0.2 L ±15

M±20

Coil Reading

Capacitor Reading

Example 1/2 D J 10K B

Example 6 W K 8.2

Example 1/2 C K 1M

Resistor Reading

Characteristic

Z (Carbon fuse)
B (Non-burnable)

Resistance value
Tolerance (see below table)
Material (see below table)
Rated wattage (W)

K indicates in KΩ
M indicate in MΩ

Note: Resistor which is indicated with resistance value only are

1/6W carbon resistor. Resistor which is indicated with materi­al, tolerance and value are 1/4W rated wattage.

Mark Material

D Carbon
N Metal film
S Oxide metal film

C Solid
G Metal glaze
W Wire wounding or cement

H Ceramic

F Fusible

Mark Tolerance

A ±0.05
B ±0.1
C ±0.25
D ±0.5
F±1

G±2

J±5
K±10

M±20

P +5 -15
Z used in 0 ohm

● Material table

● Tolerance table

● Material table

● Tolerance table

Mark Type number

-- 1S1555,1S2473,1S2076,1SS133,DS442,1SS176
K 1S1555,1S2473,1S2076,DS442

L 1S1555,1S2076A,1S2471
M 1SS133,1SS176,GMA01
N 1S1555,1S2473,1S2076,1SS133,DS442,1SS176,1N4148
P 1S1555,1S2076A,1S2471,1N4148
R 1S1555,1S2076,1S2473,DS442,1N4148

AA 1S1555,1S2076,1S2473,1SS133,DS442,1SS176,1N4148,GMA01

● Diode

Mark Type number

-- 2SC536 2SC945A 2SC1815 2SC1740 2SC1740S KSC945C
A E, F, G P, Q, R O, Y, G Q, R, S Q, R, S
B E, F, G P, Q, R O, Y, G Q, R, S
D F, G P, Q Y, G Q, R, S
F F, G P G R, S
H F, G P, Q Y, G Q, R, S Y, G

I E, F, G P, Q, R O, Y, G Q, R, S Y, G

G F, G P G R, S G

AD F, G Q, R Y, GR Q, R, S
AE E, F, G Q, R O, Y, GR Q, R, S

● Transistor (NPN type)

Mark Type number

-- 2SA608 2SA564A 2SA1015 2SA933 2SA933S KSA733C
Y E, F Q, R O, Y, G Q, R

WF R Y, GR

V E, F Q, R O, Y, G Q, R Y, G
U F R Y, G R G
Z E, F Q, R O, Y, G Q, R Q, R

AB F R Y Q, R
AE E, F Q, R O, Y R

● Transistor (PNP type)

Diode/Transistor Type Reading

-18-

C7WAS

CABINET PARTS LIST FOR MODEL CE28DN9-B-01

CABINET PARTS

1 610 310 7387 CABINET FRONT-C7WA
2 610 301 6665 BUTTON POWER-C6AA
3 610 301 6672 BUTTON UNITED-C6AA
4 610 310 7394 CABINET BACK C7WA
5 610 301 6689 DOOR-C6AA
6 665 000 2654 DEC IND-C7WA
7 610 253 2449 AC CORD HOLDER-U-D4VA
8 610 261 3032 COIL SPRING-E7GCS
9 645 043 5058 BADGE,SANYO*53.5X12L53.3

10 610 265 4202 HOLDER DC GBR-F3SC

ACCESSORIES

11 JXPLA RC TRANSMITTER

645 054 9533 BATTERY ENERGIZER R6SH2VP
665 000 2647 INST MANUAL - C7WA
665 000 2463 QUICK GUIDE - C7WA

Item Part No. Description

Note: Parts order must contain Service Ref. No., Part No., and descriptions.

11

9

1

3

2

8

5

6

JXPLB