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AV-27230
SCHEMATIC DIAGRAMS
COLOR TELEVISION
AV-27230/S
CD-ROM No.SML200104
BASIC CHASSIS
FD
CONTENTS
! ! ! ! ! ! NOTE ON USING CIRCUIT DIAGRAMS 2-1 SEMICONDUCTOR SHAPES 2-2 BLOCK DIAGRAM 2-3 CIRCUIT DIAGRAMS 2-5 PATTERN DIAGRAMS 2-10 CHANNEL CHART 2-13
1
COPYRIGHT © 2001 VICTOR COMPANY OF JAPAN, LTD.
No.51803 Apr. 2001 Apr. 2001
AV-27230
AV-27230
CONTENTS
SEMICONDUCTOR SHAPES BLOCK DIAGRAM CIRCUIT DIAGRAMS
2-2 2-3
STANDARD CIRCUIT DIAGRAM
n 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. Type No indication MY MM PP MPP MF TF BP TAN (3)Coils No unit Others (4)Power Supply :Ceramic capacitor :Mylar capacitor :Metalized mylar capacitor :Polypropylene capacitor :Metalized polypropylene capacitor :Metalized film capacitor :Thin film capacitor :Bipolar electrolytic capacitor :Tantalum capacitor :[µH] :As specified :B1 :9V :5V *Respective voltage values are indicated (5)Test point :Test point :Only test point display (6)Connecting method :Connector :Wrapping or soldering :Receptacle
MAIN PWB CIRCUIT DIAGRAM 2-5 MAIN PWB, CRT SOCKET PWB CIRCUIT DIAGRAM 2-7 POWER PWB CIRCUIT DIAGRAM 2-9
2.SPECIFIED VOLTAGE AND WAVEFORM VALUES
The voltage and waveform values have been measured under the following conditions. (1)Input signal : Color bar signal (2)Setting positions of each knob/button and variable resistor :Original setting position when shipped :DC 20k¶/V Ë 20µS/div :H Ë 5mS/div :V :Others Ë Sweeping time is specified (5)Voltage values :All DC voltage values ince the voltage values of signal circuit vary to some extent S according to adjustments, use them as reference values. (3)Internal resistance of tester (4)Oscilloscope sweeping time
PATTERN DIAGRAMS
POWER PWB PATTERN 2-10 MAIN PWB, CRT SOCKET PWB PATTERN 2-11
CHANNEL CHART (US) CHANNEL CHART (CA)
2-13 2-14
SEMICONDUCTOR SHAPES
TRANSISTOR
BOTTOM VIEW FRONT VIEW TOP VIEW CHIP TR
C
3.INDICATION OF PARTS SYMBOL [EXAMPLE]
In
+ *
the PW board
:R1209¨R209
4.INDICATIONS ON THE CIRCUIT DIAGRAM
- + *
* + /,5
- + *
- + *
B
E
(1)Resistors Resistance value No unit :[¶] K :[K¶] M :[M¶] Rated allowable power No indication :1/16[W] Others :As specified 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 Capacitance value 1 or higher :[pF] less than 1 :[µF] Withstand voltage No indication :DC50[V] AC indicated :AC withstand voltage [V] Others :DC withstand voltage [V] *Electrolytic Capacitors 47/50[Example]:Capacitance value [µF]/withstand voltage[V]
IC
BOTTOM VIEW FRONT VIEW TOP VIEW
(7)Ground symbol :LIVE side ground :ISOLATED(NEUTRAL) side ground :EARTH ground :DIGITAL ground
OUT E IN
IN E OUT
1 N
1 N
1
N
5.NOTE FOR REPAIRING SERVICE
This models 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 ( 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.
CHIP IC
TOP VIEW
N N
1
N
1 N
N
2-2
No.51803
Apr. 2001 No.51803
AV-27230
AV-27230
BLOCK DIAGRAM
IC602 AUDIO AMP
IN L R OUT L R
SP L KEY LED REMOCON RECEIVER R R/G/B RGB OUT V01 CRT
1 13
6
8
32 34 YS B G R 39 40 41 42 FRONT VIDEO IN
IC701 MICRO COMPUTER 17 VC Q272 BUFFER
IC702 MEMORY
CRT SOCKET PWB
(TO IC801) (TO IC651) VIDEO L R FRONT IN
AUDIO
Y IC801 VIDEO SW 6 VY
Y 4 3 2 1 Q023 BUFFER CF021 4.5 TRAP
Y
8 10 12 14 IC652 AMP L AUDIO VARI.OUT R 9 V Y
DIGITAL COMB FILTER VC
1+
IC821 Y/C SW 8 9 10 11 C CF041 4.5 FILTER VC 4 INPUT 2 IC421 V.OUT 2 DY01
VTV
FRONT AUDIO IN MPX 7 37
L
Q041 BUFFER 36
R
SIF 4 1
Q361 BUFFER C C 42 C 55
HD V.TV DET 47 Y 45 44 Y P* 43 P4 34
Q521 H.DRIVE
Q522 H.OUT
IC651 MTS&TONE CONTROL
IN VARI.OUT R L R
IC101 1CHIP DECODER R G 6 7 B VD T522 FBT
HB HEATER X-RAY HV FOCUS SCREEN
INPUT 1 S-VIDEO
L C Y
39
38
26
25
14 15 16 38
VIDEO L R L R Y P* P4 TO IC101 IC631 SW AUDIO IF L R TUNER
Q101 IF AMP
SF101
AUDIO INPUT 2 AUDIO
RY901 CF901 D911 RECT F902
IC921 POWER REGULATOR
B1
VIDEO
F901
POWER PWB
MAIN PWB
No.51803
2-3
2-4
No.51803
AV-27230
AV-27230 NOTE
CIRCUIT DIAGRAMS
MAIN PWB CIRCUIT DIAGRAM
lFor the parts marked in the circuit diagram, refer to the parts list.
MAIN PWB
SFD-1003A-M2
(AV-27230/S)
SFD-1004A-M2
( AV-27230/R)
1/4W
R658 15K 1/10W NRVA02D-153X
FOR TEST CRT SKT PWB
No.51803
2-5
2-6
No.51803
AV-27230
AV-27230 NOTE
MAIN PWB, CRT SOCKET PWB CIRCUIT DIAGRAM
lFor the parts marked in the circuit diagram, refer to the parts list.
MAIN PWB
SFD-1003A-M2
(AV-27230/S)
SFD-1004A-M2
( AV-27230/R)
3KV
MAIN PWB
CRT SOCKET PWB
(Within MAIN PWB)
SFD-1003A-M2
(AV-27230/S)
SFD-1004A-M2
( AV-27230/R)
2.94K 1/10W MF R 7.15K 1/10W MF R
2.2
CE41106-00CJ1
.013 1.5KVH MPP
AC250V
AC250V
270 15W
.001 AC250V
.001 AC250V
470/200 .001 AC250V
POWER PWB
No.51803
2-7
2-8
No.51803
AV-27230
AV-27230
POWER PWB CIRCUIT DIAGRAM
NOTE
lFor the parts marked in the circuit diagram, refer to the parts list.
PATTERN DIAGRAMS
POWER PWB PATTERN
TOP
MAIN PWB
MAIN PWB
AC275V
AC275V
QRZ9041-275 1/2W
QMPD290-200-JC
POWER PWB SFD-9001A-M2
No.51803
2-9
2-10
No.51803
AV-27230
AV-27230
CAUTION : FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, REPLACE ONLY WITH SAME TYPE AND RATED FUSE(S) AND ROHMS MFRD TYPE CP(S).: OR EQUIVALENT
MAIN PWB, CRT SOCKET PWB PATTERN CRT SOCKET PWB ASSY
.
FRONT
MAIN PWB ASSY
TOP
TP-91 (B1) TP-E
No.51803
2-11
2-12
No.51803
AV-27230
AV-27230
n CHANNEL CHART (US)
MODE TV CATV BAND CHANNEL REAL DISP. 02 03 04 05 06 07 08 09 10 11 12 13 A 14 B 15 C 16 D 17 E 18 F 19 G 20 H 21 I 22 J 23 K 24 L 25 M 26 N 27 O 28 P 29 Q 30 R 31 S 32 T 33 U 34 V 35 W 36 W+1 37 W+2 38 W+3 39 W+4 40 W+5 41 W+6 42 W+7 43 W+8 44 W+9 45 W+10 46 W+11 47 W+12 48 W+13 49 W+14 50 W+15 51 W+16 52 W+17 53 W+18 54 W+19 55 W+20 56 W+21 57 W+22 58 W+23 59 W+24 60 W+25 61 W+26 62 W+27 63 W+28 64 W+29 65 W+30 66 W+31 67 W+32 68 W+33 69 W+34 70 TUNER BAND TV
MODE CATV
BAND
CHANNEL REAL W+35 W+36 W+37 W+38 W+39 W+40 W+41 W+42 W+43 W+44 W+45 W+46 W+47 W+48 W+49 W+50 W+51 W+52 W+53 W+54 W+55 W+56 W+57 W+58 W+59 W+60 W+61 W+62 W+63 W+64 W+65 W+66 W+67 W+68 W+69 W+70 W+71 W+72 W+73 W+74 W+75 W+76 W+77 W+78 W+79 W+80 W+81 W+82 W+83 W+84 A-8 A-4 A-3 A-2 A-1 DISP. 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 01 96 97 98 99
n CHANNEL CHART (CA)
TUNER BAND TV MODE CATV BAND CHANNEL REAL DISP. 02 03 04 05 06 07 08 09 10 11 12 13 A 14 B 15 C 16 D 17 E 18 F 19 G 20 H 21 I 22 J 23 K 24 L 25 M 26 N 27 O 28 P 29 Q 30 R 31 S 32 T 33 U 34 V 35 W 36 W+1 37 W+2 38 W+3 39 W+4 40 W+5 41 W+6 42 W+7 43 W+8 44 W+9 45 W+10 46 W+11 47 W+12 48 W+13 49 W+14 50 W+15 51 W+16 52 W+17 53 W+18 54 W+19 55 W+20 56 W+21 57 W+22 58 W+23 59 W+24 60 W+25 61 W+26 62 W+27 63 W+28 64 W+29 65 W+30 66 W+31 67 W+32 68 W+33 69 W+34 70 TUNER BAND
MODE TV CATV
BAND
CHANNEL REAL W+35 W+36 W+37 W+38 W+39 W+40 W+41 W+42 W+43 W+44 W+45 W+46 W+47 W+48 W+49 W+50 W+51 W+52 W+53 W+54 W+55 W+56 W+57 W+58 W+59 W+60 W+61 W+62 W+63 W+64 W+65 W+66 W+67 W+68 W+69 W+70 W+71 W+72 W+73 W+74 W+75 W+76 W+77 W+78 W+79 W+80 W+81 W+82 W+83 W+84 A-8 A-4 A-3 A-2 A-1 DISP. 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 01 96 97 98 99
TUNER BAND
VL
6
VL
6
VH
VH
7
6
7
MID
MID
ULTRA
9
SUPER
ULTRA
9
SUPER
~ 7
~
~
~
8
HYPER
HYPER
SUB MID
6
SUB MID
6 7 9
9
~
UHF
14 69
9
~
UHF
14 69
TOTAL 180CH VHF 124CH UHF 56CH NOTE: TO RECEIVE THE SUBSCRIPTION OR PREMIUM PROGRAMMING FROM CERTAIN CABLE COMPANIES. SPECIAL ADAPTERS MAY BE REQUIRED.
<
TOTAL 180CH VHF 124CH UHF 56CH NOTE: TO RECEIVE THE SUBSCRIPTION OR PREMIUM PROGRAMMING FROM CERTAIN CABLE COMPANIES. SPECIAL ADAPTERS MAY BE REQUIRED.
<
ULTRA
ULTRA
9
No.51803
2-13
2-14
No.51803
VP0104 DP6051
JVC SERVICE & ENGINEERING COMPANY OF AMERICA DIVISION OF JVC AMERICAS CORP.
Head office : East Coast : Midwest : West Coast : Southwest : Hawaii : Southeast : 1700 Valley Road, Wayne, New Jersey 07470 10 New Maple Avenue, Pine Brook, New Jersey 07058 705 Enterprise St. Aurora, Illinois 60504 5665 Corporate Avenue, Cypress, California 90630 10700 Hammerly, Suite 105, Houston,Texas 77043 2969 Mapunapuna Place, Honolulu, Hawaii 96819 1500 Lakes Parkway, Lawrenceville, Georgia 30243 (973)315-5000 (973)396-1000 (630)851-7855 (714)229-8011 (713)935-9331 (808)833-5828 (770)339-2582
JVC CANADA INC.
Head office : Vancouver : 21 Finchdene Square Scarborough, Ontario M1X 1A7 13040 Worster Court Richmond B.C. V6V 2B3 (416)293-1311 (604)270-1311
!
4
AV27230S-UCM #4 AV27230R-UCM #4
Printed in Japan VP 0104 DP6051