Sony TRINITRON KV-BT21M50 User manual

MODEL COMMANDER DEST. CHASSIS NO.
CHASSIS
TRINITRON ® COLOR TV
SERVICE MANUAL BX1S
MODEL COMMANDER DEST. CHASSIS NO.
KV-BT21M50 RM-W101 GE SCC-V04A-A
KV-BT21M80 RM-W101 ME SCC-U90M-A
KV-BT21M81 RM-W100 ME SCC-U90J-A
RM-W100RM-W101

– 2 –
KV-BT21M50/BT21M80/BT21M81
RM-W101 RM-W100
Note
Power requirements 110-240 V AC, 50/60 Hz
Power consumption (W) Indicated on the rear of the TV
Television system B/G, I, D/K, M
Color system PAL, PAL 60, SECAM, NTSC3.58, NTSC4.43
Teletext language English, Farsi (Persian) KV-BT21M81 only
Channel coverage
B/G VHF: E2 to E12 / UHF: E21 to E69
CATV: S01 to S03, S1 to S41
IUHF: B21 to B68
CATV: S01 to S03, S1 to S41
D/K VHF: C1 to C12, R1 to R12 / UHF: C13 to C57, R21 to R60 /
CATV: S01 to S03, S1 to S41, Z1 to Z39
MVHF: A2 to A13 / UHF: A14 to A79 /
CATV: A-8 to A-2, A to W+4, W+6 to W+84
8(Antenna) 75-ohm external terminal
Audio output (Speaker) 3W + 3W
Number of terminal
DVideo Input: 2 Output: 1 Phono jacks; 1 VP-P, 75 ohms
≥Audio Input: 2 Output: 1 Phono jacks; 500 mVrms
2(Headphone) Output: 1 Stereo minijack
Picture tube 21 in.
Tube size (cm) 54 Measured diagonally
Screen size (cm) 51 Measured diagonally
Dimension (w/h/d, mm) 497 x 461 x 487
Mass (kg) 23
Design and specifications are subject to change without notice.
SPECIFICATIONS
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY SHADING AND MARK !ON
THE SCHEMATIC DIAGRAMS, EXPLODED VIEWS AND IN
THE PARTS LIST ARE CRITICAL TO SAFE OPERATION.
REPLACE THESE COMPONENTS WITH SONY PARTS
WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS
MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.
CAUTION
SHORT CIRCUIT THE ANODE OF THE PICTURE TUBE AND
THE ANODE CAP TO THE METAL CHASSIS, CRT SHIELD,
OR CARBON PAINTED ON THE CRT, AFTER REMOVING THE
ANODE.

– 31 –
KV-BT21M50/BT21M80/BT21M81
RM-W101 RM-W100
SECTION 4
DIAGRAMS
4-1. BLOCK DIAGRAM
VIF&SIF SAW
MAIN
Power
Supply
FSS TUNER
AGCin
12C
Video
L(Mono)
Video
L(Mono)
CV/YC
L(Mono)
CV/YC
L(Mono)
CV/YC
L(Mono)
G/Y
B/P
B
R/P R
L
Fbl(RGBin)
24.576MHz
DVD/RGB
AV2
AV3
AV1
Mon Out
Audio Amp
TV
out
Mon
out
AV1
in
AV2
in
AV3
in
RGB/
DVD
in
5V 30V
IF
24-5.VIF1~2
115. DGC Relay
STBY
3.3V
AC in ~
110-220V
CISPR/
PFC
3.3V
RESET
3.3V 5V 8V
3.3/5V
Relay
8V AUDIO VCC
HV
DGC
+/-15V
Hout
FBT
L
1/2ch
Audio Amp
ATT
VAR
NVM
Pin out
H-drive
H-out
Rot. cct
V-out
VM
RGB Amp
feedback
3W
Mono
3W
R
L,R
HP
mute
EHT, ABL
Hp
1k
EW, Hd
V+, V-
RGB
+B
On/Off
stdby
Device 12C
12C
SIRCS
Key buttons
PLL
I/O Port
VIF & SIF POWER
Color
Decoder
YUV
Processor
Jungle
RGB
FM MONO Dem
Volume control
ONE CHIP
Micro
Tex t
CC & V-chip
11.XTALOUT
10.XTALIN
74~76.YUVout
70-72.YUVin
119. KEY IN
126.INT2
98, 99. SCL1, SDA1
108, 109. SCL0, SDA0
102. BINT
122~3. RED/GREEN LED
77.SCARTFBL
78~80.RGB3
34DIRIN R-Y/R,Y/G, B-Y/B IN
31.AGCout
43.IFVO/IF-
MON-OUT
62.SCARTHPL
48.MON-OUT
36.OutL
85~87
RGBout
84.lk
65.VM
23. VD+
22. VD-
112.ROT CTRL
113. ROT SW
21.EWD
67.Hout
66.AFC
32.EHTO
83.ABL
60.LSL
106. AUDIO MUTE
105. AUDIO STDBY
58.CVBS1/Y1
59.C3
56.InL1
55.CVBS3
53.InL3
I/O Port
51.CVBS2/Y2
52.C2
49.InL2
B-INT
LED
+B line
30V
L

– 32 –
KV-BT21M50/BT21M80/BT21M81
RM-W101 RM-W100
4-2. CIRCUIT BOARDS LOCATION
A Board C Board
4-3. SCHEMATIC DIAGRAM
Note:
•All capacitors are in µF unless otherwise noted.
•All electrolytic capacitors are rated at 50V unless otherwise
noted.
•All resistors are in ohms.
kΩ= 1000Ω, MΩ= 1000kΩ
•Indication of resistance which does not have rating
electrical power is as follows.
Pitch: 5 mm
Rating electrical power 1/4W (CHIP: 1/10W)
•: nonflammable resistor.
•: fusible resistor.
•¢: internal component.
•: panel designation or adjustment for repair.
•All variable and adjustable resistors have characteristic
curve B unless otherwise noted.
• Readings are taken with a color-bar signal input.
no mark : Common
( ) : PAL
[ ] : NTSC 3.58
• Readings are taken with a 10 MΩdigital multimeter.
• Voltage are dc with respect to ground unless otherwise
noted.
• Voltage variations may be noted due to normal
production tolerances.
• All voltage are in Volt.
•✽: Cannot be measured.
• Circled numbers are waveform references.
• : B +bus.
• : B –bus.
• k: signal path.
Note: The reference number which starts with Wxxx
(eg: W003) indicates a wire to wire connection.
Note: Components marked as XX are not fitted on this
model.
Reference information
RESISTOR : RN METAL FILM
: RC SOLID
: FPRD NONFLAMMABLE CARBON
: FUSE NONFLAMMABLE FUSIBLE
: RS NONFLAMMABLE METAL
OXIDE
: RB NONFLAMMABLE CEMENT
: RW NONFLAMMABLE
WIREWOUND
: ✽ADJUSTMENT RESISTOR
COIL : LF-8L MICRO INDUCTOR
CAPACITOR : TA TANTALUM
: PS STYROL
: PP POLYPROPYLENE
: PT MYLAR
: MPS METALIZED POLYESTER
: MPP METALIZED POLYPROPYLENE
: ALB BIPOLAR
: ALT HIGH TEMPERATURE
: ALR HIGH RIPPLE
Note: The component identified by shading and
mark !are critical for safety. Replace only
with part number specified.
Note: “A”board schematic diagram is divided into 6 blocks.
Each block is named by its function and block
“alphabet”. eg: Processor (Block A)
Joint connection between boards can be identified
using the block alphabet followed by sequence
numbering.
eg: -<HOUT-DEFL (A10) To D11
Meaning: Block A joint A10 is connected to Block D
joint D11

– 33 –
A
12345 6 7
B C D E F G H I J
KV-BT21M50/BT21M80/BT21M81
RM-W101 RM-W100
4-3-1. C Board Schematic Diagram
2kV
4700
E
C752
50V
1000p
B
C782
1
1P
CN705
GND
1SS133T-77
D780
1SS133T-77
D781
L750
XX
22uH
L780
Q701
XX
CHIP
XX
R775
CHIP
XX
R777
R766 XX
R767 XX
R768 XX
R784
XX
R785
XX
R786
XX
UDZSTE-175.6B
D782
XX
R776
CHIP
XX
R778
250V
4.7
C754
JW702
XX
C759
XX
CH
1
2
3
4
5
WHT
5P
CN703
200V
NC
GND
H1
NC
3
4
5
6
7
8
9
10
11
13
1GND
GND
1
J751
110M
RV750
XX
R760
1/2W
100
R763
1/2W
100
R764
R765
100
1/2W
FPRD
1/2W
560k
R773
1/2W
RN-CP
1k
R756
1/2W
RN-CP
1k
R757
1/2W
RN-CP
1k
R758
HSS82-TJ
D756
HSS82-TJ
D755
HSS82-TJ
D754
R774
150
3W
RS
1/2W
FPRD
100
R783
R713
0 :CHIP
C783
1000
B:CHIP
1
CN704
1P
1000V
13 987654
2
TDA6108AJF/N1
IC751
B IN
G IN
R IN
GND
IK
VDD
R OUT
G OUT
B OUT
0.47
R794
GP08D
D750
1/2W
FPRD
470k
R780
100K
1/2W
R795
1
2
3
4
5
6
7
7P
CN701
WHT
GND
B
G
R
GND
1K
9V
1000p
B:CHIP
C786
C753
XX
500V
1000p
C787
RS
R781
0.56
JW1781
5
JW1782 5
5
JW1783
RN-CHIP
680
R752 CHIP
680
R753
RN-CHIP
680
R754
250V
10
C751
250V
4.7
C781
XX
C788
XX
C790
XX
C789
XX
L781
XX
L782
XX
L783
+9V
+200V
R-OUT R-IN
C
FV
RCV
(VIDEO AMP)
B-BX1S11714-ME...-C..-BT21M81
1
2
3
4
56
9V
9V
1000V
200V
H
KG G2
CV KR G1 G4 HV
KB
A51LPT70X
PICTURE TUBE
TO EARTH
COATING ASSY