JVC TM-H1950CG - Page 29

No.51961
TM-H1950CG
29
Item Test equipment Test points
Ad ju st men t
locations
Ad justment procedure
PAL CHROMA
Sa tura tio n
adjus tme nt
Signal generator
(Full colour bar)
Oscillo-scope
TP-47B
TP-E(#)
[CRT SOCKET
PWB]
S03(PAL CHROMA)
[SERVICE MENU]
1. Input a PAL full colour bar signal.
2. Connect the oscillo-scope probe to TP-47B and
TP-E(#).
3. Select the SIGNAL BLOCK mode from <BLOCK
SE LECT> screen .
4. Select t he S03 item.
5. Ad just the S03 t o b ecome t he volta ge diff eren t
between 75% white and blue to 0V ±
±±
±2V p-p as
sh own in figu re.
PAL PHASE
Sa tura tio n
adjus tme nt
Signal generator
(Full colour bar)
S11(PAL PHASE)
[SERVICE MENU]
1. Select the SIGNAL BLOCK mode from <BLOCK
SE LECT> screen .
2. Se le ct t he S1 1 ite m.
3. Conf irm t hat t he value is 062. If diff er , cor rectly
set the value to 062.
NT SC 3 .58
CHROMA
Sa tura tio n
adjus tme nt
Signal generator
(Full colour bar)
Oscillo-scope
TP-47B
TP-E(
#
)
[CRT SOCKET
PWB]
S04
(NT SC CHROMA)
[SERVICE MENU]
1. Input a NTSC 3.58 full colour bar signal.
2. Connect the oscillo-scope probe to TP-47B and
TP-E(#).
3. Select t he SIGNAL B LOCK mode from <BLOCK
SE LECT> screen .
4. Select t he S04 ite m.
5. Adjust th e S0 4 t o b ecom e t he voltage diff er ent
between 75% white and blue to 0V ±
±±
±2V p-p as
sh own in figu re.
0V±
±±
±2V
BL
B
R
Mg
G
C
y
Y
W
75%
0V±
±±
±2V
BL
B
R
M
g
G
Cy
Y
W
75%