COPYRIGHT © 2003 VICTOR COMPANY OF JAPAN, LIMITED
No.52137
2003/10
COLOUR TELEVISION
52137
2003
10
AV-28KT1BUF/A, /B, /C,
AV-28KT1SUF/A, /B, /C
RM-C1100
TV
SCHEMATIC DIAGRAMS
CD-ROM No.SML200310
1
No.52137
AV-28KT1BUF
AV-28KT1SUF
AV-28KT1BUF
AV-28KT1SUF
Sep. 2003 No. 52137
2-2
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 manufactures 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)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 indication
:Carbon resistor
OMR
:Oxide metal film resistor
MFR
:Metal film resistor
MPR
:Metal plate resistor
UNFR
:Uninflammable resistor
FR
:Fusible resistor
Composition resistor 1/2 [W] is specified as 1/2S or Comp.
(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 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 circuit 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, please use the numbers that appear
in the Parts List.
Type
MM
:Metalized mylar capacitor
PP
:Polypropylene capacitor
MPP
:Metalized polypropylene capacitor
MF
:Metalized 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 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
AV-28KT1BUF/A/B/C
AV-28KT1SUF/A/B/C
CONTENTS
SEMICONDUCTOR SHAPES
2-2
BLOCK DIAGRAM
2-3
CIRCUIT DIAGRAMS
2-5
2-15
2-17
2-19
2-20
PATTERN DIAGRAMS
MAIN PWB CIRCUIT DIAGRAM
CRT SOCKET PWB CIRCUIT DIAGRAM
SIDE CONTROL PWB CIRCUIT DIAGRAM
LED PWB CIRCUIT DIAGRAM
SWITCH PWB CIRCUIT DIAGRAM
SEMICONDUCTOR SHAPES
TRANSISTOR
BOTTOM VIEW
FRONT VI EW
TOP VIEW
CHIP TR
IC
BOTTOM VIEW
FRONT VI EW
TOP VIEW
CHIP IC
TOP VIEW
1
N
N
1
OUT
E
IN
IN
OUT
E
1
N
N
1
N
N
N
1
N
E
C
B
EC B
C
BE
BC E
(G)(D)(S)
EC B
EC B
2-21
2-23
2-24
2-25
2-26
MAIN PWB PATTERN
CRT SOCKET PWB PATTERN
SIDE CONTROL PWB PATTERN
LED PWB PATTERN
SWITCH PWB PATTERN
2
No.52137
AV-28KT1BUF
AV-28KT1SUF
AV-28KT1BUF
AV-28KT1SUF
2-2
CONTENTS
SEMICONDUCTOR SHAPES
2-2
BLOCK DIAGRAM
2-3
CIRCUIT DIAGRAMS
2-5
2-15
2-17
2-19
2-20
PATTERN DIAGRAMS
MAIN PWB CIRCUIT DIAGRAM
CRT SOCKET PWB CIRCUIT DIAGRAM
SIDE CONTROL PWB CIRCUIT DIAGRAM
LED PWB CIRCUIT DIAGRAM
SWITCH PWB CIRCUIT DIAGRAM
SEMICONDUCTOR SHAPES
TRANSISTOR
BOTTOM VIEW
FRONT VI EW
TOP VIEW
CHIP TR
IC
BOTTOM VIEW
FRONT VI EW
TOP VIEW
CHIP IC
TOP VIEW
1
N
N
1
OUT
E
IN
IN
OUT
E
1
N
N
1
N
N
N
1
N
E
C
B
EC B
C
BE
BC E
(G)(D)(S)
EC B
EC B
2-21
2-23
2-24
2-25
2-26
MAIN PWB PATTERN
CRT SOCKET PWB PATTERN
SIDE CONTROL PWB PATTERN
LED PWB PATTERN
SWITCH PWB PATTERN
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 manufactures 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)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 indication
:Carbon resistor
OMR
:Oxide metal film resistor
MFR
:Metal film resistor
MPR
:Metal plate resistor
UNFR
:Uninflammable resistor
FR
:Fusible resistor
Composition resistor 1/2 [W] is specified as 1/2S or Comp.
(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 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 circuit 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, please use the numbers that appear
in the Parts List.
Type
MM
:Metalized mylar capacitor
PP
:Polypropylene capacitor
MPP
:Metalized polypropylene capacitor
MF
:Metalized 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 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
AV-28KT1BUF/A/B/C
AV-28KT1SUF/A/B/C
Sep. 2003 No. 52137
No.52137
No.52137
3
AV-28KT1BUF
AV-28KT1SUF
AV-28KT1BUF
AV-28KT1SUF
2-3
2-4
BLOCK DIAGRAM
38.9MHz-TV TUNER
SAW
Filter
SAW
Filter
Video
Sound
IC206
Z200
Z202
TU200
VDP313XY
VIDEO SW
SDA
SCL
SC1
SC2
IF
SVHS-Y
EXT_CVBS/Y
SC2_V_OUT
TO_PIP
SC1_RGB
SC2_RGB/DVD/DVB
PIP
R
G
B
FB
CVBS
R
G
B
FB
SCL
SDA
SYNC
SC3
R
G
B
Horizontal
Vertical Stage
Yoke
CRT
RGB AMPLIFIER
R
G
B
QSS
SCL
SDA
SC1
SC2
FRONT/SC3
L
R
Headphone
AUDIO
AMPLIFIER
L
R
8 ohm
12W
8 ohm
12W
(MicroController)
(E2PROM)
SDA
SCL
TV_LINK
CVBS_TEXT
OSD_R
OSD_G
OSD_B
OSD_FBL
DVD/DVB/BAV
SC1_V_OUT
SC3_V_OUT
IC205
IC201
IC700
IC301
IC704
IC200
IC900
IC600
IC500
IC502
No.52137
No.52137
4
AV-28KT1BUF
AV-28KT1SUF
AV-28KT1BUF
AV-28KT1SUF
2-5
2-6
CIRCUIT DIAGRAMS MAIN PWB CIRCUIT DIAGRAM [1/5]
MAIN PWB (1/5)
VE-20120604 (AV-28KT1BUF/A, AV-28KT1SUF/A)
VE-20127801 (AV-28KT1BUF/B, AV-28KT1SUF/B)
VE-20127796 (AV-28KT1BUF/C, AV-28KT1SUF/C)
CRT SOCKET PWB
SIDE CONTROL PWB