JVC AV21BT7 free download

File name 51878.pdf

AV21BT7ENS / AV21BT7ENB AV21BT7EPS / AV21BT7EPB AV21BT7EES / AV21BT7EEB SERVICE MANUAL COLOUR TELEVISION AV21BT7ENS / AV21BT7ENB AV21BT7EPS / AV21BT7EPB AV21BT7EES / AV21BT7EEB CONTENTS SPECIFICATIONS 2 SAFETY PRECAUTIONS 4 FEATURES 5 MAIN DIFFERENCE PARTS LIST 5 SPECIFIC SERVICE INSTRUCTIONS 6 SERVICE ADJUSTMENTS 9 PARTS LIST 17 OPERATING INSTRUCTIONS STANDARD CIRCUIT DIAGRAM 2-1 1 COPYRIGHT © 2001 VICTOR COMPANY OF JAPAN, LTD. No.51878 Dec. 2001 AV21BT7ENS / AV21BT7ENB AV21BT7EPS / AV21BT7EPB AV21BT7EES / AV21BT7EEB SPECIFICATIONS Content ITEM Dimensions (WxHxD) Weight TV RF System Colour System Teletext System Stereo System Tuning System Number Of CH memory position VHF (VL) Receiving Frequency VHF (VH) UHF CATV VIF Carrier Intermediate Frequency TV Mode Video Mode AV21BT7ENS (Silver) AV21BT7ENB (Black) 60 x 45 x 49 cm 21.4 kg B/G PAL / SECAM PAL / SECAM / NTSC 3.58 / NTSC 4.43 Fastext / Toptext A2 / NICAM Frequency Synthesizer Tuning System 100 ch 46.25MHZ ~ 168.25MHz 175.25MHz ~ 463.25MHz 471.25MHz ~ 863.25MHz Super (S11-S20) & Hyper (S21-S41) bands receivable 38.9MHz 32.4MHz (6.5MHz) SIF Carrier 32.9MHz (6.0MHz) 33.4MHz (5.5MHz) Colour Sub Carrier Frequency Aerial Input Terminal Power Input Power Consumption Picture Tube High Voltage Speaker Audio Output Video Input S/Video Audio (L/R) Output Video Audio (L/R) Rear Side Front Side Front Side Output Terminal Remote Control Unit Rear Side PAL (4.43MHz), SECAM (4.43MHz), NTSC (3.58MHz/4.43MHz) 75Ohm Unbalanced AC 220 ~ 240V, 50Hz 95W(Max.)/73W(Avg.) Stand-by<5W 21 inch measured diagonally 26kV (in cut-off service mode) 57x160 mm oval type X 2 8+8W 1Vp-p, 75 Ohm Y: 1Vp-p Positive C: 0.286Vp-p 500 mVrms, High Impedance 1 Vp-p, 75 Ohm 500 mVrms, Low Impedance AV1 (Video/Audio/RGB) AV2 (Video/Audio/S-VHS) AV3 (Video/Audio) Headphone jack (Stereo mini jack 3.5 ) AV1 (Video/Audio) AV2 (Video/Audio) (Selected TV, AV1 or AV3) RM-C85, Battery size:AAA/R03 x 2 L, B/G B/G, D/K AV21BT7EPS (Silver) AV21BT7EPB (Black) AV21BT7EES (Silver) AV21BT7EEB (Black) Input Terminal Design & specifications are subject to change without notice. 2 No.51878 AV21BT7ENS / AV21BT7ENB AV21BT7EPS / AV21BT7EPB AV21BT7EES / AV21BT7EEB 21-pin Euro connector (SCART socket) : AV1 / AV2 (P-P= Peak to Peak, S-W= Sync tip to white peak, B-W= Blanking to white peak) Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 Signal Designation AUDIO R output AUDIO R input AUDIO L output AUDIO GND GND (B) AUDIO L input B input FUNCTON SW (SLOW SW) GND (G) G input GND (R) GND (YS) R / C input Ys input GND(VIDEO output) GND(VIDEO input) VIDEO output VIDEO / Y input COMMON GND 1VS-W (Negative going sync), 75 1VS-W (Negative going sync), 75 R : 700mVB-W , 75 C : 300mVP-P, 75 Low : 0 ­ 0.4, High : 1 - 3V, 75 700mVB-W , 75 500mVrms(Nominal), High impedance 700mVB-W , 75 Low : 0-3V, High : 8-12V, High impedance Matching Value 500mVrms(Nominal),Low impedance 500mVrms(Nominal),High impedance 500mVrms(

File name 51878par.pdf

AV21BT7ENS / AV21BT7ENB AV21BT7EPS / AV21BT7EPB AV21BT7EES / AV21BT7EEB PARTS LIST CONTENTS USING PW BOARD & REMOTE CONTROL UNIT 17 EXPLODED VIEW PARTS LIST 18 EXPLODED VIEW 18 PRINTED WIRING BOARD PARTS LIST [ AV21BT7ENS / AV21BT7ENB] MAIN PW BOARD ASS'Y 19 MULTI SOUND PW BOARD ASS'Y 23 CRT SOCKET PW BOARD ASS'Y 24 FRONT AV PW BOARD ASS'Y 24 HEAD PHONE PW BOARD ASS'Y 24 [ AV21BT7EPS / AV21BT7EPB] MAIN PW BOARD ASS'Y 25 MULTI SOUND PW BOARD ASS'Y 29 [ AV21BT7EES / AV21BT7EEB] MAIN PW BOARD ASS'Y 31 PACKING / PACKING PARTS LIST 36 USING PW BOARD & REMOTE CONTROL UNIT Model PWB ASS'Y AV21BT7ENS AV21BT7ENB VE-20073428 VE-20078991 VE-20074437 VE-20076582 VE-20075217 RM-C85 AV21BT7EPS AV21BT7EPB VE-20073414 VE-20079020 AV21BT7EES AV21BT7EEB VE-20073418 VE-20078991 MAIN PWB MULTI SOUND PWB CRT SOCKET PWB FRONT AV PWB HEAD PHONE JACK PWB REMOTE CONTROL UNIT No. 51878 17 AV21BT7ENS / AV21BT7ENB AV21BT7EPS / AV21BT7EPB AV21BT7EES / AV21BT7EEB EXPLODED VIEW V01 9 10 1 2 3 10 10 11 4 5 6 10 7 HEAD PHONE JACK PWB MAIN PWB 14 15 (x5) EXPLODED VIEW PARTS LIST [ SILVER model : AV21BT7ENS, AV21BT7EPS, AV21BT7EES ] [ BLACK model : AV21BT7ENB, AV21BT7EPB, AV21BT7EEB ] 18 No. 51878 AV21BT7ENS / AV21BT7ENB PRINTED WIRING BOARD PARTS LIST [ AV21BT7ENS / AV21BT7ENB ] MAIN P.W. BOARD ASS'Y (VE-20073428) No. 51878 19 AV21BT7ENS / AV21BT7ENB [ AV21BT7ENS / AV21BT7ENB ] 20 No. 51878 AV21BT7ENS / AV21BT7ENB [ AV21BT7ENS / AV21BT7ENB ] ° No. 51878 21 AV21BT7ENS / AV21BT7ENB [ AV21BT7ENS / AV21BT7ENB ] ° 22 No. 51878 AV21BT7ENS / AV21BT7ENB [ AV21BT7ENS / AV21BT7ENB ] MULTI SOUND P.W. BOARD ASS'Y (VE-20078991) ° ° No. 51878 23 AV21BT7ENS / AV21BT7ENB [ AV21BT7ENS / AV21BT7ENB ] CRT SOCKET P.W. BOARD ASS'Y (VE-20074437) FRONT AV P.W. BOARD ASS'Y (VE-20076582) HEAD PHONE P.W. BOARD ASS'Y (VE-20075217) 24 No. 51878 AV21BT7EPS / AV21BT7EPB PRINTED WIRING BOARD PARTS LIST [ AV21BT7EPS / AV21BT7EPB ] MAIN P.W. BOARD ASS'Y (VE-20073414) No. 51878 25 AV21BT7EPS / AV21BT7EPB [ AV21BT7EPS / AV21BT7EPB ] 26 No. 51878 AV21BT7EPS / AV21BT7EPB [ AV21BT7EPS / AV21BT7EPB ] No. 51878 27 AV21BT7EPS / AV21BT7EPB [ AV21BT7EPS / AV21BT7EPB ] ° ° 28 No. 51878 AV21BT7EPS / AV21BT7EPB [ AV21BT7EPS / AV21BT7EPB ] MULTI SOUND P.W. BOARD ASS'Y (VE-20079020) ° ° No. 51878 29 AV21BT7EPS / AV21BT7EPB [ AV21BT7EPS / AV21BT7EPB ] CRT SOCKET P.W. BOARD ASS'Y (VE-20074437) Refer to PARTS LIST in page 24 for this P.W. board. FRONT AV P.W. BOARD ASS'Y (VE-20076582) Refer to PARTS LIST in page 24 for this P.W. board. HEAD PHONE P.W. BOARD ASS'Y (VE-20075217) Refer to PARTS LIST in page 24 for this P.W. board. 30 No. 51878 AV21BT7EES / AV21BT7EEB PRINTED WIRING BOARD PARTS LIST [ AV21BT7EES / AV21BT7EEB ] MAIN P.W. BOARD ASS'Y (VE-20073418) No. 51878 31 AV21BT7EES / AV21BT7EEB [ AV21BT7EES / AV21BT7EEB ] 32 No. 51878 AV21BT7EES / AV21BT7EEB [ AV21BT7EES / AV21BT7EEB ] No. 51878 33 AV21BT7EES

File name 51878sch.pdf

AV21BT7ENS / AV21BT7ENB AV21BT7EPS / AV21BT7EPB AV21BT7EES / AV21BT7EEB SCHEMATIC DIAGRAMS COLOUR TELEVISION AV21BT7ENS / AV21BT7ENB AV21BT7EPS / AV21BT7EPB AV21BT7EES / AV21BT7EEB CD-ROM No.SML200201 CONTENTS NOTE ON USING CIRCUIT DIAGRAMS SEMICONDUCTOR SHAPES BLOCK DIAGRAM WAVEFORM DIAGRAM CIRCUIT DIAGRAMS PATTERN DIAGRAMS VOLTAGE TABLE 2-1 2-2 2-3 2-4 2-5 2-11 2-15 COPYRIGHT 2001 VICTOR COMPANY OF JAPAN, LTD. No.51878 Dec. 2001 AV21BT7ENS / AV21BT7ENB AV21BT7EPS / AV21BT7EPB AV21BT7EES / AV21BT7EEB AV21BT7ENS / AV21BT7ENB AV21BT7EPS / AV21BT7EPB AV21BT7EES / AV21BT7EEB WAVEFORM DIAGRAM MAIN PWB STANDARD CIRCUIT DIAGRAM IC050 6pin 0.7Vp-p(H) Q802 D 8Vp-p(H) IC401 6pin 1.7Vp-p(H) IC050 17pin 1.4Vp-p(H) 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 MM PP MPP MF TF BP TAN (3)Coils No unit : Original setting position when shipped :DC 20k :H :V :Others (5)Voltage values /V 20µS/div 5mS/div Sweeping time is specified Others (4)Power Supply :B1 :9V Respective voltage values are indicated (5)Test point :Test point (6)Connecting method :Connector :Wrapping or soldering :Only test point display :B2 (12V) :5V :[ µ H] :As specified :Ceramic capacitor :Metalized mylar capacitor :Polypropylene capacitor :Metalized polypropylene capacitor :Metalized film capacitor :Thin film capacitor :Bipolar electrolytic capacitor :Tantalum capacitor 2.SPECIFIED VOLTAGE AND WAVEFORM VALUES The voltage and waveform values have been measured under the following conditions. (1)Input signal (2)Setting positions of each knob/button and variable resistor (3)Internal resistance of tester (4)Oscilloscope sweeping time : Colour bar signal IC401 17pin 0.7Vp-p(H) IC401 30pin 0.8Vp-p(H) IC401 29pin 0.9Vp-p(H) IC401 19pin 2Vp-p(H) :All DC voltage values Since the voltage values of signal circuit vary to some extent according to adjustments, use them as reference values. IC401 20pin 2Vp-p(H) IC401 21pin 2Vp-p(H) IC401 40pin 1Vp-p(H) Q605 5pin 450Vp-p(H) 3.INDICATION OF PARTS SYMBOL [EXAMPLE] In the PW board :R1209 R209 (7)Ground symbol :LIVE side ground :ISOLATED(NEUTRAL) side ground :[ ] :[K ] :[M ] :EARTH ground :DIGITAL ground :Receptacle 4.INDICATIONS ON THE CIRCUIT DIAGRAM (1)Resistors Resistance value No unit K M IC401 47pin 0.6Vp-p(V) IC701 1pin 4.8Vp-p(V) IC701 9pin 0.5Vp-p(V) IC501 34pin 1.2Vp-p Rated allowable power No indication :1/ 16 [W] Others Type No indication OMR MFR MPR UNFR FR (2)Capacitors Capacitance value :Carbon resistor :Oxide metal film resistor :Metal film resistor :Metal plate resistor :Uninflammable resistor :Fusible resistor :As specified 5.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