-30-
4. No picture from all of sources
Check HSYNC signal at test point TPGHS and VSYNC signal at TPGVS.
Check RGB S&H signals at test points TP35R, TP35G and TP35B.
Check NRS signals at test point TPNRS and TPZNRS.
Check power supply circuit 15VL and 15VP and peripheral circuit.
Check ICs IC501, IC1501, IC2501, IC9401, IC401 and peripheral circuits.
●
No Picture
❈
Differences as below
■
Troubleshooting
Chassis Block Diagrams
* Following information differs from the previous chassis No. MR3-XP5500, others are the same;
- The ICs of the LCD panel drivers are changed.
IC301
SCAN
CONVER
TER
IC9401
AI PICTURE,
COLOR MANA
GEMENT
<JS1110074>
IC9402
SDRAM
<EM638325>
IC501
B-LCD DRIVER
<L3E06110>
B-LCD
PANEL
G-LCD
PANEL
R-LCD
PANEL
IC341
S-RAM
IC9501
CAPTURE
<uPD65943>
IC351
FLASH
ROM
IC304
CONTROL
MEMORY
<24LC168>
SCL5/SDA5
SCLK3/SDATA3/STB3
RD/WRL/CS
PW_RXD/TXD
RD/WRL/WRH/CS
TP308
TP307
DR
DG
DB
BAOUT
GAOUT
BAOUT
SDIF
323
66
67
23
60
96
62
DHS
DVS
244
A0-A16
D0-D15
A1-A19
D0-D15
PW_SDA
PW_SCL
DBSH
B
DGSH
G
DRSH
R
IC2501
R-LCD DRIVER
<L3E06110>
IC1501
G-LCD DRIVER
<L3E06110>
IC401
DIGIT
AL GAMMA
CORRECTION
<L3E07070>
IC1621
NRS
<LM7171>
IC1631
NRS
<LT1206>
TPZNRS
TPNRS
+
+
IC1560
NRS_SW
<4053>
IC5501
DAC
<M62399>
IC5531
DAC
<M62399>
NRSA/NRSB
12,13
K35R
K35G
K35B
TP35B
TP35G
TP35R
FPRR,FPRG
R/G/B_V1/V2
4,5,12-15
●
LCD panel driving stage
Содержание PLC-XP51
Страница 79: ...MH5 XP5100 79 MEMO ...
Страница 80: ... MH5A DEC 2004 BB 400 Printed in Japan SANYO Electric Co Ltd ...
Страница 98: ...Diagrams Drawings MH5A ...