Sharp HT-M700H Service Manual page 68

HT-M700H
• Picture do not operate normally.
Set the disc on the disc tray.
Are the video signal shown above input into the pins of JP4 ?
JP4 pin 6 SC-G
JP4 pin 4 SC-R
JP4 pin 2 SC-B
JP4 pin 3 FDAC_V
Check or replace DSP PWB.
• Sound is not given properly from speaker.
Set disc to DISC tray and play.
Are the video signal shown above input into the pins of JP4 ?
JP3 pin 1 TSD0-
JP3 pin 2 TSD1-
JP3 pin 3 TSD2-
JP3 pin 4 TBCK
JP3 pin 5 TWS
JP3 pin 6 MCLK
Check or replace Amp unit.
Yes
Yes
Yes
Yes
No Check the line between the pins of DVD servo unit U1A and the
pins JP4.
U1A pin 108 → JP4 pin 3 FDAC_V
U1A pin 113 → JP4 pin 6 SC-G
U1A pin 114 → JP4 pin 4 SC-R
U1A pin 115 → JP4 pin 2 SC-B
No Check the line between JP3 and pins of U1A.
U1A pin 116 → JP3 pin 5 TWS
U1A pin 117 → JP3 pin 1 TSD0-
U1A pin 118 → JP3 pin 2 TSD1-
U1A pin 120 → JP3 pin 3 TSD2-
U1A pin 122 → JP3 pin 6 MCLK
U1A pin 123 → JP3 pin 4 TBCK
Check or replace U1A.
7 – 4
No