JVC AV-21FTR(B) Service Manual

AV-21FTR

SERVICE MANUAL

COLOUR TELEVISION

BASIC CHASSIS

AV-21FTR(B)

This service manual mainly consists of the following items:

• The items which differ from those for the AV-21FTR service manual.

• The initial value for each setting item. For details other than those described in this manual, please refer to the following service manual. Reference Service Manual: AV-21FTR Service Manual (No. 51722, Apr. 2000)

Note: The page in parentheses shows the one for the AV-21FTR service manual (No. 51722, Apr. 2000).

HOW TO IDENTIFY MODEL

While referring to the illustration given below, identify model name on the rating label affixed to the rear cover.

Basic model name

AV-21FTR

MODEL NO.

XXXXX XXXXXXX XXXXXXX XXXXX

XXXXXX

XXXXX

XXX XXXXX XXXXX

XXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXX

SERIAL No.

XXXX XX XXXX XXX XX XXXX

XXXXXX–XXX

Identify model name

AV-21FTR/B

No. 51722B 1

No. 51722B

Sep. 2000

AV-21FTR

PARTS DIFFERENCE TABLE

The different parts between AV-21FTR and AV-21FTR(B) are described below:

! REF. NO. PART NAME DESCRIPTION

AV-21FTR AV-21FTR(B) PART No. PART No.

■ EXPLODED VIEW PARTS LIST (Page 32)

! V01 A51JSY33X/C/ A51LMV20X PICTURE TUBE ! L01 QQW0077-001 QQW0006-001 DEGAUSSING COIL

DY01 QQD0041-001 CE20310-00B DEF YOKE

■ PRINTED WIRING BOARD PARTS LIST (Page 34-)

— SCG-1018A-H2 SCG-1267A-H2 MAIN PWB ASSY

R1532 NCB31HK-103X CH C CAP. 0.01µF 50V K

NCB21HJ-103X CH C CAP. 0.01µF 50V J R1904 QRL03EJ-151X OM R 150Ω 3W J C1110 NRSA63J-0R0X CH MG R 0.0Ω 1/16W J

NRSA02J-0R0X CH MG R 0.0Ω 1/10W J C1354 NCS21HJ-271X CH C CAP. 270pF 50V J

NDC21HJ-271X CH C CAP. 270pF 50V J C1355 NCS21HJ-221X CH C CAP. 220pF 50V J

NDC21HJ-221X CH C CAP. 220pF 50V J C1356 NCS21HJ-331X CH C CAP. 330pF 50V J

NDC21HJ-331X CH C CAP. 330pF 50V J C1525 QFZ0200-972 MPP CAP. 9700pF 1.5kVH ±3%

QFZ0200-103 MPP CAP. 0.01µF 1.5kVH ±3% C1527 QFZ0199-204 MPP CAP. 0.2µF 250V J

QFZ0199-224 MPP CAP. 0.22µF 250V J C1582 QFZ0199-204 MPP CAP. 0.2µF 250V J

QFZ0199-254 MPP CAP. 0.25µF 250V J C1839 NCS21HJ-471X CH C CAP. 470pF 50V J

NDC21HJ-471X CH C CAP. 470pF 50V J C1949 NCS21HJ-471X CH C CAP. 470pF 50V J

NDC21HJ-471X CH C CAP. 470pF 50V J L1522 QQR1005-001 QQR1005-002 LINEARITY COIL

No. 51722B2

SPECIFICATIONS (Page 2)

Item Content

Dimensions (W × H × D) 619mm × 458mm × 486.5mm Mass 22kg TV RF System B / G, I, D / K, K1 Colour System TV Mode PAL / SECAM

VIDEO Mode PAL / SECAM / NTSC3.58 / NTSC4.43

Teletext System Fastext (United Kingdom system), WST (Standard system) Receiving Frequency VHF (VL) 46.25MHz ~ 168.25MHz

VHF (VH) 175.25MHz ~ 463.25MHz UHF 471.25MHz ~ 863.25MHz CATV ● Cable TVs of Mid (X-Z, S1-S10)

Super (S11-S20) & Hyper (S21-S41) bands receivable

Intermediate VIF Carrier 38.0MHz Frequency 31.5MHz (6.5MHz)

SIF Carrier 32.0MHz (6.0MHz)

32.5MHz (5.5MHz)

33.5MHz (4.5MHz)

Colour Sub Carrier Frequency PAL (4.43MHz)

SECAM (4.40625MHz / 4.25MHz) NTSC (3.58MHz / 4.43MHz)

Aerial Input Terminal 75Ω Unbalanced Power Input AC110 ~ 240V, 50/60Hz Power Consumption 105W (Max.) / 68W (Avg.) Picture Tube Visible size : 51cm measured diagonally High Voltage 26.5kV ± 1.5kV (at zero beam current) Speaker 6cm × 12cm Oval type × 2 Audio Output 5W (Monaural) Input Video 1Vp-p, 75Ω

Audio 500mVrms (−4dBs), High impedance

Output Video 1Vp-p, 75Ω

Audio 500mVrms (–4dBs), Low impedance

Headphone Jack Stereo mini jack (3.5ø) Remote Control Unit RM-C223-2C (Battery size : AA/R06/UM-3 × 2)

AV-21FTR

Design & specifications are subject to change without notice.

No. 51722B 3

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