JVC AV-28BS88EN, AV-28BT80EN, AV-28BT80EP, AV-28BT8EEB, AV-28BT8EES Schematics
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AV-28BT8ENS / AV-28BT8ENB / AV-28BT80EN
AV-28BT8EPS / AV-28BT8EPB / AV-28BT80EP
AV-28BT8EES / AV-28BT8EEB / AV-28BS88EN
SCHEMATIC DIAGRAMS
COLOUR TELEVISION
AV-28BT8ENS / AV-28BT8ENB
AV-28BT80EN / AV-28BT8EPS
AV-28BT8EPB / AV-28BT80EP
AV-28BT8EES / AV-28BT8EEB
AV-28BS88EN
CD-ROM No.SML200207
RM-C1100 TV
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
2-21
No.52057
Jul. 2002
AV-28BT8ENS / AV-28BT8ENB / AV-28BT80EN
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 replace safety critical
components only with ma nu factures recommended parts .
2.SPECIFIED VOLTAGE AND WAVEFORM VALUES
The voltage and waveform values have been measured under the
following conditions.
(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)Os c illo scope sw eeping time
:H
20µS/div
:V
5mS/div
:Others
Sweeping time is
specified
(5)Voltage values
:All DC voltage values
Sin ce th e vo l tage val ue s of si gn a l cir cui t va ry to some ex ten t
according to adjustments, use them as reference values.
3.INDICATIONS ON THE CIRCUIT DIAG RAM
(1)Resistors
Resistance value
No unit :[
]
K
:[K
]
M
Type
No indication
:Carbon resistor
OMR
:Oxide metal fi l m r esist or
MFR
:Meta l film resist or
MPR
:Metal plate resistor
UNFR
:Uninflammable resistor
FR
:Fusible resistor
Composition resist or 1/2 [W] is specified as 1/2S or C omp.
(2)Capacitors
: Original setting position
when shipped
4.NOTE FOR REPAIRING SERVICE
This model's power circuit is partly different in the 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 an d 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 c hange for improvement
without any notice.
NOTE
Due improvement in performance, some part numbers show
in the circuit diagram may not agree wi th those indicate d in
the part list.
When ordering parts, pl ease use t he numbers that ap pear
in the Pa rts List.
Type
MM
:M eta lized mylar cap ac i tor
PP
:Polypropylene capacitor
MPP
:Metalized polypropylene capacitor
MF
:Metal ized film capacitor
TF
:Thin film capacitor
BP
:Bipolar electrolytic capacitor
TAN
:Tantalum capacitor
(3)Coils
No unit
:[
µ
H]
Others
:As specified
:[M ]
Capacitance value
1 or higher :[pF]
less than 1
:[µF]
Withstand v oltage
No indi cation :DC 50[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
AV-28BT8ENS, AV-28BT8ENB,AV-28BT80EN
AV-28BT8EPS, AV-28BT8EPB,AV-28BT80EP
AV-28BT8EES, AV-28BT8EEB,AV-28BS88EN
AV-28BT8EPS / AV-28BT8EPB / AV-28BT80EP
AV-28BT8EES / AV-28BT8EEB / AV-28BS88EN
FRONT CONTROL PWB PATTERN
2-24
TOP
No.52057
VP0207
DP6060
AV-28BT8ENS / AV-28BT8ENB / AV-28BT80EN
AV-28BT8EPS / AV-28BT8EPB / AV-28BT80EP
AV-28BT8EES / AV-28BT8EEB / AV-28BS88EN
Jul. 2002 No. 52057
AV-28BT8ENS / AV-28BT8ENB / AV-28BT80EN
AV-28BT8EPS / AV-28BT8EPB / AV-28BT80EP
AV-28BT8EES / AV-28BT8EEB / AV-28BS88EN
CONTENTS
AV-28BT8ENS / AV-28BT8ENB / AV-28BT80EN
AV-28BT8EPS / AV-28BT8EPB / AV-28BT80EP
AV-28BT8EES / AV-28BT8EEB / AV-28BS88EN
CRT SOCKET PWB PATTERN
SEMICONDUCTOR SHAPES
BLOCK DIA GRAM
CIRCUIT DIAGRAMS
MAIN PWB CIRCUIT DIAGRAM
CRT SOCKET PWB CIRCUIT DIAGRAM
FRONT AV & HEADPHONE PWB CIRCUIT DIAGRAM
FRONT CONTROL PWB CIRCUIT DIAGRAM
P ATTERN DIAGRAMS
MAIN PWB PATTERN
CRT SOCKET PWB PATTERN
FRONT AV & HEADPHONE PWB PATTERN
FRONT CONTROL PWB PATTERN
SEMICONDUCTOR SHAPES
TRANSISTOR
BOTTOM VIE W
E
C
B
ECB
BCE
(G)(D)(S)
FRONT VI EW
ECB
ECB
TO P VI EW
CHIP TR
C
BE
2-2
2-3
2-5
2-17
2-19
2-20
2-21
2-23
2-23
2-24
TOP
IC
B O TT OM VI EW F R O NT VIEW TO P VI EW
OUT
E
IN
IN OUTE
1 N
1 N
CHIP IC
TO P VI EW
N
N
N
1
N
1
N
1
N
FRONT AV & HEADPHONE PWB PATTERN
FRONT
2-2
No.52057No.52057
2-23
BLOCK DIAGRAM
AV-28BT8ENS / AV-28BT8ENB / AV-28BT80EN
AV-28BT8EPS / AV-28BT8EPB / AV-28BT80EP
AV-28BT8EES / AV-28BT8EEB / AV-28BS88EN
AV-28BT8ENS / AV-28BT8ENB / AV-28BT80EN
AV-28BT8EPS / AV-28BT8EPB / AV-28BT80EP
AV-28BT8EES / AV-28BT8EEB / AV-28BS88EN
PLL/VST TUNER
UV1315/16
SERVICE
CONNECTOR
I2 C
STEREO SOUND
MSP34X0D/G
VIRTUAL DOLBY
QSS
MSP 3411G
IF
SUB AMP
SUBW
TDA7261
L
L
AUDIO AMP
TDA7269A
R
R
HP AMP
TDA1308
MONO
CRT
EEPROM
KEYPAD
IR
SENSOR
SMPS
MC446
08
CONTROLLER
ST92195
+150 B+
+14V
-14V
+8V
+5V
+5V STBY
SCART1
VIDEO
PROCESSOR
STV2248C
VIDEO
SWITCHING
CIRCUITS
SVHS FAV/BAV
RGB AMP
TDA6108
VER AMP
STV9306
HOR D
BU2508
RIVE
VER. DEFL.
HOR. DEFL.
FBT
No.52057
SC
ART 2
2-3 2-4
No.52057
CIRCUIT DIAGRAMS
0V
0V
0V
0V
4.9V
3.9V
4V
4.9V
MAIN PWB CIRCUIT DIAGRAM [1/6]
4.8V
1.6V
4.9V
1.4V
0V
1.6V
4.9V
3.9V
AV-28BT8ENS / AV-28BT8ENB / AV-28BT80EN
AV-28BT8EPS / AV-28BT8EPB / AV-28BT80EP
AV-28BT8EES / AV-28BT8EEB / AV-28BS88EN
1.9V
1.8V
4.9V
1.4V
1.4V
0.2V
AV-28BT8ENS / AV-28BT8ENB / AV-28BT80EN
AV-28BT8EPS / AV-28BT8EPB / AV-28BT80EP
AV-28BT8EES / AV-28BT8EEB / AV-28BS88EN
DIFFERENCE LIST
Z401 30001705 FILTER SAW OFWG9353M 30013163 FILTER SAW K9356
Z402 30015591 FILTER SAW G3967
IC403 30014521 IC STV2247 (SHRINK56)
J217 30002583 KISA DEVRE TEL 0.6MM
L404 30002583 KISA DEVRE TEL 0.6MM
L407
Z404
C457 30012578 CAP SMD 68PF 50V J (0603)
S411 30012985 JUMPER SMD 0603
Q402
D402
R402
R407
R410
R412
R552
C446
NOT2
NOT1
20099532
IC500
IC501
20093395
30013658
IC700
S701
EN EE
30014261 FILTER SAW K3958M
30014510 IC STV2248 (SHRINK56)
30002583 KISA DEVRE TEL 0.6MM
30001990 FIXED COIL 6.8UH Q75 K
30001724 FILTER SER TRAP TPS 5.5MHZ
30012985 JUMPER SMD 0603
IC 24C08 T27981110A101211012(J
PR.IC.37-7PGTXT ST92195C 64K
IC MSP3410G SDIP64
20101623 IC 24C08 T34286110B101211012(J
30012545 FILTER SAW K9656M
30014261 FILTER SAW K3958M
30014510 IC STV2248 (SHRINK56)
30001990 FIXED COIL 6.8UH Q75 K
30001992 FIXED COIL 10UH Q65 K-A
30001724 FILTER SER TRAP TPS 5.5MHZ
30012560 CAP SMD 100PF 50V J (0603)
30001457 TR BC848B SMD
30012411 DIODE BA782 SMD
30012692 RES SMD 1/16W 4.7K J (0603)
30000471 RES CF 1/4W 10K J
30000471 RES CF 1/4W 10K J
30000723 RES CF 1/4W 47K J
30012692 RES SMD 1/16W 4.7K J (0603)
30000345 CAP EL 10UF 50V M
30009831 CABLE 0.6MM BLUE (5CM)
30009847 CABLE 0.6MM BLUE (8CM)
20099534 IC 24C08 T28087110A101211012(J
EP
30001705 FILTER SAW OFWG9353M
30015591 FILTER SAW G3967
30014521 IC STV2247 (SHRINK56)
30002583 KISA DEVRE TEL 0.6MM
30002583 KISA DEVRE TEL 0.6MM
30012985 JUMPER SMD 0603
20101581
20101580
30009354
30002583
AV-28BS88EN
IC 24C08 T34181110A101211112(J
PR.IC.37-7PGTXT ST92195C 64K S
IC MSP3411 SDIP64
KISA DEVRE TELI 0.6MM
4.9V
1.6V
1.5V
0V
4.9V
0.2V
0.2V
1.8V
0V
0V
0V
4.9V
0.9V
4.5V
IC501 40
6
IC501 41
0V
0V
0V
0V
0V
1.6V
1.6V
0V
3.6V
0.1V
1.6V
0.2V
5
0.1V
2.8V
2.5V 5.5V
0V
3.9V 3.5V
4.9V 4.9V 0V
23.3V
0V
0V
4.9V
4.2V
4.9V
0V
4.9V
4.5V
4.9V
4.6V
No.52057 No.52057
1.6V
1.6V
4.9V
0V
0V
2-5
2-6
MAIN PWB
VE-20101577
VE-20101576
VE-20101622
VE-20101578
(1/6)
(AV-28BT8ENS, AV-28BT8ENB,AV-28BT80EN)
(AV-28BT8EPS, AV-28BT8EPB,AV-28BT80EP)
(AV-28BT8EES, AV-28BT8EEB)
(AV-28BTS88EN)
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