Service Adjustments - JVC AV-27BM3 Service Manual

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SERVICE ADJUSTMENTS
@ PRIOR TO STARTING ADJUSTMENT
® Allow set and test equipment to warm up fully before adjusting.
® Confirm proper AC 120V power supply input.
© Set BRIGHT, PICTURE, COLOR, etc. AV STATUS to standard settings.
© Use care, not to distur controls other than those mentioned in the adjustment steps.
® Unloss otherwise mentioned, use a reception signal that provides the optimum picture for adjustment
® Alter removing the rear cover, tun VSM SERVICE SW (S701) to the S side, then set the respective values as shown below using
FUNCTION KEY of the remote controf unit,
(Upon completion of this setting, return the S701 to the N side.)
T CcO PI BR
004 #170 160 100
MTOOLS AND FIXTURES FOR ADJUSTMENT
®MEASURING INSTRUMENTS
4. DC voltmeter (Digital DC voltmeter)
2. Oscilloscope
3. Patlern generator (NTSC type)
4. TV multichannel sound generator
5. Remote control unit (RM-C424)
mw ADJUSTMENT LOCATIONS
{} FRONT
10101
A315 |B CUTOFF;
7192 R135 {} TOP
[6] Fyfnoisel R426 R423
TP-12@ Oo TUNE QQ v
Q]t133 @ [vine] HEIGHT,
F902 il S401
ee
id wang
oer Q 8251 (S' rata [6 GuTOre]
R316
SERVICE
eo"
iS! TP-E(GND)@®
TP-B1®@ CPSC IPA F313 [R CUTOFF]
R606 || MTS PWB ASS'Y 1S: raed G Rive]
SEPARATION $701 Wen
F901 7-1 [SERVICE SW
MAIN PWB ASS'Y t Rav9[R DRIVE
UPPER : FOCUS
LOWER : SCREEN CRT SOCKET
PWB ASS'Y
8 (No.50718)