Page 1
AV28BH7ENS / AV28BH7ENB AV28BH7EPS / AV28BH7EPB AV28BH7EES / AV28BH7EEB
SCHEMATIC DIAGRAMS
COLOUR TELEVISION
AV28BH7ENS / AV28BH7ENB
AV28BH7EPS / AV28BH7EPB
AV28BH7EES / AV28BH7EEB
CD-ROM No.SML200204
CONTENTS
NOTE ON USING CIRCUIT DIAGRAMS
SEMICONDUCTOR SHAPES
BLOCK DIAGRAM
CIRCUIT DIAGRAMS
PATTERN DIAGRAMS
COPYRIGHT 2002 VICTOR COMPANY OF JAPAN, LTD.
2-1
2-2
2-3
2-5
2-19
No.51967
Apr. 2002
Page 2
AV28BH7ENS / AV28BH7ENB
STANDARD CIRCUIT DIAGRAM
NOTE ON USING CIRCUIT DIAGRAMS
1.SAFETY
The components identified by the symbol and shading are
critical for safety. For continued safety re place safety critical
components only with manufac tu res recommended parts.
2.SPECIFIED VOLTAGE AND WAVEFORM VALUES
The voltage and waveform values have been measured under the
following cond itions.
(1)Input signal : Colour bar signal
(2)Setting positions of
each knob/button and
variable resistor
(3)Internal resistance of tester
:DC 20k
/V
(4)Oscilloscope sweeping time
:H
20µS/div
:V
5mS/div
:Others
Sweeping time is
specified
(5)Voltage values
:All DC voltage values
Since the voltage values of signal circuit vary to some extent
according to adjustments, use them as reference values.
3.INDICATIONS ON THE CIRCUIT DIAGRAM
(1)Resistors
Resistance value
No unit :[
]
K
:[K
]
M
Type
No indica tion
:Carbon resistor
OMR
:Oxide metal film resistor
MFR
:Metal film resistor
MPR
:Metal plate resistor
UNFR
:Uninflammable resi stor
FR
:Fusible resistor
C omposition resistor 1/2 [W] is specified as 1/2S or Comp.
(2)Capacitors
: Original setting position
when shipped
4.NOTE FOR REPAIRING SERVICE
This mode l's po wer circu it is pa rtly diffe rent in th e GND. The
difference of the GND is shown by the LIVE side GND and the
ISOLATED(NEUTRAL) side GND.Therefore, care must be
taken for the following points.
(1)Do not touch the LIVE side GND or the LIVE side GND and the
ISOLATED(NEUTRAL) side GND simultaneously. If the above
caution is not respected, an electric shock may be caused.
Therefore, make sure that the power cord is surely removed from
the receptacle when, for example, the chassis is pulled out.
(2)Do not short between the LIVE side GND and ISOLATED(NEUTRAL)
side GND or never measure with a measuring apparatus measure
with a measuring apparatus ( oscilloscope, etc.) the LIVE side GND
and ISOLATED(NEUTRAL) side GND at the same time.
If the above precaution is not respected , a fuse or any parts will be broken.
Since the circuit diagram is a standard one, the ci rcuit and
circuit constants may be subject to change for improvement
without any notice.
NOTE
Due improvement in performance, some part numbers show
in the circuit diagram may not agree with those indicated in
the part list.
When ordering parts, plea se use the numbers t hat appear
in the Parts List.
Type
MM
:M etal ized mylar capa c i tor
PP
:Polypropylene capacitor
MPP
:Metalized polypropylene capacitor
MF
:Metalized film capac itor
TF
:Thin film capacitor
BP
:Bipolar electrolytic capaci tor
TAN
:Tantalum capacitor
(3)Coils
No unit
:[
µ
H]
Others
:As specified
:[M ]
Capacitance value
1 or higher :[pF]
less than 1
:[µF]
Withstand voltage
No indication :DC50[V]
Others :DC withstand voltage [V]
AC indicated
:AC withstand voltage [V]
Electrolytic Capacitors
47/50[Example]:Capacitance value [µF]/withstand voltage[V]
No indication
:Ceramic capacitor
AV28BH7ENS / AV28BH7ENB
AV28BH7EPS / AV28BH7EPB
AV28BH7EES / AV28BH7EEB
AV28BH7EPS / AV28BH7EPB
AV28BH7EES / AV28BH7EEB
CONTENTS
AV28BH7ENS / AV28BH7ENB
AV28BH7EPS / AV28BH7EPB
AV28BH7EES / AV28BH7EEB
SEMICONDUCTOR SHAPES
BLOCK DIAGRAM
CIRCUIT DIAGRAMS
MAIN PWB CIRCUIT DIAGRAM
MULTI SOUND PWB CIRCUIT DIAGRAM
FEATURE BOX PWB CIRCUIT DIAGRAM
CRT SOCKET PWB CIRCUIT DIAGRAM
FRONT AV + HEADPHONE JACK PWB CIRCUIT DIAGRAM
FRONT CONTROL PWB CIRCUIT DIAGRAM
P ATTERN DIAGRAMS
MAIN PWB PATTERN
MULTI SOUND PWB PATTERN
FEATURE BOX PWB PATTERN
CRT SOCKET PWB PATTERN & FRONT CONTROL PWB PATTERN
FRONT AV + HEADPHONE JACK PWB PATTERN
SEMICONDUCTOR SHAPES
TRANSISTOR
BOTTOM VIEW
E
2-2
C
B
IC
BOTTOM VIEW FRONT VI EW TOP VIEW
OUT
E
IN
CHIP IC
N
N
N
FR ONT VIEW
ECB
IN OUTE
N
1
BCE
(G)(D)(S)
1 N
TOP VIEW
1
N
No.51967
ECB
1 N
ECB
TOP VIEW
CHIP TR
1
2-2
2-3
2-5
2-11
2-13
2-15
2-17
2-18
2-19
2-21
2-23
2-25
2-26
C
BE
N
Apr. 2002 No. 51967
Page 3
BLOCK DIAGRAM
AV28BH7ENS / AV28BH7ENB
AV28BH7EPS / AV28BH7EPB
AV28BH7EES / AV28BH7EEB
AV28BH7ENS / AV28BH7ENB
AV28BH7EPS / AV28BH7EPB
AV28BH7EES / AV28BH7EEB
TUNER
27W401
(EPROM)
24W32
2
PROM)
(E
(PLL)
A0-A17
D0-D7
SDA
SCL
L/L'
MODE SW
MUTE
18
8
IF STAGE(ON MAIN BOARD)
2
L
LED &
SCART1-AV-IN
SCART2-AV-IN
KEYBOARD
(uCONTROLLER)
VS2 HS2
IF TDA 4470
MODE_ SW
IR
SDA5550M
AFC OUT
AGC OUT
AGC CONT.
AFC
AGC CONTR.
(PWM)
R G B FB
CVBS OUT
QSS OUT
MONO OUT
SC
ST.BY
OSD
(R,G,B,FB)
4
SOUND BOARD AND AV SWITCHING BOARD
SCART 1 SCART 2
SVHS_Y
C
S1 IF S2
TEA6415C
(Video Switching
Matrix)
VBS
Text_C
CVBS/Y
SCL
SDA
Text_CVBS
RGB
SDA
SCL
Back_AV
Back_V Back_A Front_V Front_A
S2 S1
Front_AV
MONO IN QSS
MSP 34XX
C
FEATURE BOX
SCL
MODULE
SDA
C
Vin2
VPC3215 CIP3250
LUMA_VPC
CHROMA_VPC
SYNC/CT
LLC1
2
SYNC / CT
LLC1/ LLC2
V VGA , HVGA
8
8
3
GB
SCART
-R
C
RL
SVHS_C
C_SW
LUMA
CHROMA
4
SVHS
SCL
8
RES#
SVHS_Y
SC2_R(Scart2_C)
SDA
RD
WR
8
SDA9400
LLC1/LLC2
2
TDA1308
2
RESQ
Connector
VS2HS2
HEADPHONE
L
R
VGA
SDA
SCL
U / V (LUMA)
6
YUV(CHROMA)
MAIN_R
MAIN_L
8
2
RD
WR
DDP3310B
SYNC / CT
VVGA
LLC1/LLC2
R,G,B,FB
4
OSD
(R,G,B,FB)
4
H-PROT
FLYBACK
SVM
HORIZ.
DRIVE
EW
VERT.+
VERT.-
FREQ.SEL.
CI
MUTE
MUTE/ST.BY
LOGIC
ON/OFF
TDA7265
R
L
HORIZONTAL
R
G
B
12V
E/W
DRIVE
CRT BOARD
SVM
E/W
TDA6111
TDA6111
TDA6111
-Vert.Sup
-Vert.Sup
Horz.
Yoke
+130V
Lin.
Heater
Heater
30KV
FOCUS
SCREEN
G2 FOCUS
SWM
COIL
30KV
I2C BUS ADRESSES
Terresterial Tuner C0
TEA6415 06
MSP 34XX 80
DPL3519 84
VPC3215 8E
CIP3250 DC
SDA9400 BC
DDP3310B BA
SDA9488 D6
No.51967
VERTICAL STAGE
STV9379FA
(VERT. OUT)
ON/OFF
VS2
HS2
DEGAUSÝNGLINE_IN
LINE
FILTER
TDA16846
2-3 2-4
No.51967
Vert.
Yoke
VOLTAGE
REG.
+145V
+5V
+8V
+12V
+5V_STBY
Page 4
CIRCUIT DIAGRAMS
MAIN PWB CIRCUIT DIAGRAM (1/3)
AV28BH7ENS /AV28BH7ENB
AV28BH7EPS / AV28BH7EPB
AV28BH7EES / AV28BH7EEB
AV28BH7ENS / AV28BH7ENB
AV28BH7EPS / AV28BH7EPB
AV28BH7EES / AV28BH7EEB
MAIN PWB
VE-20084580(A V28BH7ENS/ENB), VE-20084599(A V28BH7EPS/EPB), VE-20084594(A V28BH7EES/EEB)
No.51967 No.51967
2-5
2-6
Page 5
MAIN PWB CIRCUIT DIAGRAM (2/3)
AV28BH7ENS / AV28BH7ENB
AV28BH7EPS / AV28BH7EPB
AV28BH7EES / AV28BH7EEB
AV28BH7ENS / AV28BH7ENB
AV28BH7EPS / AV28BH7EPB
AV28BH7EES / AV28BH7EEB
MAIN PWB VE-20084580(A V28BH7ENS/ENB), VE-20084599(A V28BH7EPS/EPB), VE-20084594(AV28BH7EES/EEB)
No.51967
2-7 2-8
POSITION VESTEL CODE DESCRIPTION VESTEL CODE DESCRIPTION VESTEL CODE DESCRIPTION
C424
-
C455
VE-30000345
C430
-
C479
-
C493
-
C494
-
C496
-
D401
VE-30001735
D402
-
IC401
VE-30001495
Q401
-
Q405
-
Q406
-
R401
-
R403
-
R417
-
R418
-
R432
-
R437
-
R438
-
R439
-
R446
-
R447
-
R516
-
R517
-
S401
VE-30001734
T402
VE-30001726
VL401
VE-30002037
VR401
-
EE VERSIONS EN VERSIONS EP VERSIONS
CAP EL 10UF 50V M
-
-
-
-
JUMPER SMD 1206
IC TDA4472
-
-
-
-
-
-
-
-
-
-
-
-
-
-
JUMPER SMD (0805)
FILTER SER TRAP TPS 6.5MHZ
ADJ COIL VIF 38.9 Q80
-
VE-30000345
-
-
-
-
VE-30001735
VE-30001495
-
-
-
-
-
-
-
-
-
-
-
-
-
-
VE-30001734
VE-30002037
-
CAP EL 10UF 50V M
-
-
-
-
JUMPER SMD 1206
IC TDA4472
-
-
-
-
-
-
-
-
-
-
-
-
-
-
JUMPER SMD (0805)
ADJ COIL VIF 38.9 Q80
-
VE-30000387
VE-30000294
VE-30000362
VE-30000384
VE-30000345
VE-30000413
VE-30001285
VE-30001285
VE-30001494
VE-30001457
VE-30001457
VE-30001457
VE-30000665
VE-30000668
VE-30000778
VE-30000593
VE-30000787
VE-30000499
VE-30000655
VE-30000563
VE-30000469
VE-30000469
VE-30000664
VE-30000664
VE-30001726
VE-30002036
VE-30001069
CAP EL 33UF 50V M
-
-
-
-
-
JUMPER SMD 1206
IC TDA4472
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
FILTER SER TRAP TPS 6.5MHZ
ADJ COIL VIF 38.9MHZ C=12PF
RES ADJ 0.15W 47K VER (MAN)
No.51967
Page 6
MAIN PWB CIRCUIT DIAGRAM (3/3)
AV28BH7ENS /AV28BH7ENB
AV28BH7EPS / AV28BH7EPB
AV28BH7EES / AV28BH7EEB
AV28BH7ENS / AV28BH7ENB
AV28BH7EPS / AV28BH7EPB
AV28BH7EES / AV28BH7EEB
MAIN PWB
VE-20084580(A V28BH7ENS/ENB), VE-20084599(A V28BH7EPS/EPB), VE-20084594(AV28BH7EES/EEB)
No.51967 No.51967
2-9
2-10
Page 7
MUL TI SOUND PWB CIRCUIT DIAGRAM
AV28BH7ENS / AV28BH7ENB
AV28BH7EPS / AV28BH7EPB
AV28BH7EES / AV28BH7EEB
AV28BH7ENS / AV28BH7ENB
AV28BH7EPS / AV28BH7EPB
AV28BH7EES / AV28BH7EEB
No.51967
2-11 2-12
STEREO MODULE PWB VE-30017302
No.51967
Page 8
FEA TURE BO X PWB CIRCUIT DIA GRAM
AV28BH7ENS /AV28BH7ENB
AV28BH7EPS / AV28BH7EPB
AV28BH7EES / AV28BH7EEB
AV28BH7ENS / AV28BH7ENB
AV28BH7EPS / AV28BH7EPB
AV28BH7EES / AV28BH7EEB
FEATURE BOX PWB VE-30013755
No.51967 No.51967
2-13 2-14
Page 9
CRT SOCKET PWB CIRCUIT DIA GRAM
AV28BH7ENS / AV28BH7ENB
AV28BH7EPS / AV28BH7EPB
AV28BH7EES / AV28BH7EEB
AV28BH7ENS / AV28BH7ENB
AV28BH7EPS / AV28BH7EPB
AV28BH7EES / AV28BH7EEB
CRT SOCKET PWB VE-30017303
No.51967
2-15 2-16
No.51967
Page 10
FRONT AV + HEADPHONE JACK PWB CIRCUIT DIA GRAM
AV28BH7ENS /AV28BH7ENB
AV28BH7EPS / AV28BH7EPB
AV28BH7EES / AV28BH7EEB
AV28BH7ENS / AV28BH7ENB
AV28BH7EPS / AV28BH7EPB
AV28BH7EES / AV28BH7EEB
FRONT CONTROL PWB CIRCUIT DIA GRAM
FRONT CONTROL PWB VE-30017014
FRONT AV + HEADPHONE JACK PWB VE-30016761
No.51967 No.51967
2-17 2-18
Page 11
PATTERN DIAGRAMS
FRONT
MAIN PWB PATTERN
AV28BH7ENS / AV28BH7ENB
AV28BH7EPS / AV28BH7EPB
AV28BH7EES / AV28BH7EEB
AV28BH7ENS / AV28BH7ENB
AV28BH7EPS / AV28BH7EPB
AV28BH7EES / AV28BH7EEB
No.51967
2-19 2-20
No.51967
Page 12
MULTI SOUND PWB PA TTERN
TOP
AV28BH7ENS /AV28BH7ENB
AV28BH7EPS / AV28BH7EPB
AV28BH7EES / AV28BH7EEB
AV28BH7ENS / AV28BH7ENB
AV28BH7EPS / AV28BH7EPB
AV28BH7EES / AV28BH7EEB
No.51967 No.51967
2-21 2-22
Page 13
FEA TURE BOX PWB P ATTERN
TOP TOP
AV28BH7ENS / AV28BH7ENB
AV28BH7EPS / AV28BH7EPB
AV28BH7EES / AV28BH7EEB
AV28BH7ENS / AV28BH7ENB
AV28BH7EPS / AV28BH7EPB
AV28BH7EES / AV28BH7EEB
No.51967
2-23
2-24
No.51967
Page 14
CRT SOCKET PWB PA TTERN
AV28BH7ENS /AV28BH7ENB
AV28BH7EPS / AV28BH7EPB
AV28BH7EES / AV28BH7EEB
AV28BH7ENS / AV28BH7ENB
AV28BH7EPS / AV28BH7EPB
AV28BH7EES / AV28BH7EEB
FRONT AV + HEADPHONE JACK PWB PATTERN
TOP
FRONT
FRONT CONTROL PWB PA TTERN
TOP TOP
No.51967 No.51967
2-262-25
VP0204
DP8080
Page 15
AV28BH7ENS / AV28BH7ENB
AV28BH7EPS / AV28BH7EPB
AV28BH7EES / AV28BH7EEB
VICTOR COMPANY OF JAPAN, LIMITED
HOME AV NETWORK BUSINESS UNIT. 12, 3-chome, Moriya-cho, Kanagawa-ku, Yokohama, Kanagawa-prefecture, 221-8528, Japan
Printed in Japan
VP 0204
DP8080
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