JVC AV-21ATG-A Service Manual

AV-21ATG

SERVICE MANUAL

COLOUR TELEVISION

BASIC CHASSIS

AV-21ATG(-A)

This service manual mainly consists of the following items:

• The items which differ from those for the AV-21AT 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-21AT Service Manual (No. 56013, May 2000)

Note: The page in parentheses shows the one for the AV-21AT service manual (No. 56013, May 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-21ATG

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-21ATG-A

No. 56015 1

No. 56015

May 2000

AV-21ATG

PARTS DIFFERENCE TABLE

The different parts between AV-21AT and AV-21ATG(-A) are described below:

! REF. NO. PART NAME DESCRIPTION

AV-21AT AV-21ATG(-A) PART No. PART No.

■ EXPLODED VIEW PARTS LIST (Page 28)

! 15 LC20377-010A-H LC20413-002A-H RATING LABEL ! 18 QMP40D0-200J5 QMPR010-200-E2 POWER CORD

or QMP40D0-200J3 or QMPR010-200-K2

■ PRINTED WIRING BOARD PARTS LIST (Page 30)

— SCG-1247A-H2 SCG-1244A-H2 MAIN PWB ASSY IC1701 MN1873287JA MN1873287JB IC (MICROCOMPUTER) IC1702 AT24C08-21FTR AT24C08-21FM IC (MEMORY) (Service)

■ PACKING PARTS LIST (Page 34)

1 GG10056-017A-H GG10056-018A-H PACKING CASE

! 7 LCT0748-001A-H LCT0728-001A-H INST BOOK ! 8 LCT0749-001A-H LCT0750-001A-H DIGEST MANUAL ! — QAM0055-001 CONVERSION PLUG

No. 560152

SPECIFICATIONS (Page 2)

Item Content

Dimensions (W × H × D) 502mm × 451mm × 480.5mm Mass 19.5kg TV RF System B / G, I, D / K, K1 Colour System TV Mode PAL / SECAM

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

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 5cm × 9 cm 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-C364-1H (Battery size : AA/R06/UM-3 × 2)

AV-21ATG

Design & specifications are subject to change without notice.

No. 56015 3

+ 5 hidden pages