Hitachi P50XR01E, Service Manual

Page: 2 / 108

1
P50XR01U/E P60XR01U/E
1. Features ----------------------------------------------- 2
2. Specifi cations ----------------------------------------- 7
3. Servic in g ------------------ ----- ------------------------ 8
4. Component names ---------------------------------- 9
5. Adjustment ------------------------------------------ 1 5
6. Troubleshooting ------------------------------------ 2 6
7. Self-diagnosis function --------------------------- 43
8. Waveform diagram s ---------- --- ----------------- 45
9. Block diagram s -------- ------- -- ----------- --------- 4 7
10. Connection diagram s ----------------------------- 4 9
11. Wiring diagram s -------------- ------- -------------- 51
12. Disassembly diagram s ------ - -------------------- 55
13. Replacement partslist ----------- - ---------------- 59
Contents
CAUTION FOR SAFETY
Please read this page before repair ing the monitor.
This page explains t he following items for keep ing the safety of set and prevent ing accident s
during repair.
S m ol s Used:
Warning
This symbol means "possibility of death or heavy damage"
Caution
This symbol means "possibility of damage or breakage"
This symbol means "CAUTION"
This symbol means "POSSIB I L ITY of
ELECTRIC SHOCK"
This symbol means "MUST"
This symbol means "DO NOT"
Follow instructions.
Special attention parts are indicated
on cabinter, chassis and parts by label.
Please follow t he note s in [Safety In-
structions] in the User’s Manual.
Prevent electric shock.
T ake care during working be cause
the monitor has high voltage part s
and power supply part s .
Possib i l ity of electric shock if these
parts are touched .
D isconnect power plug during
overhaul, reassemble or parts change.
Daeth or injury by electric shock may
occur if live part s are touched .
Use recommended components.
Components and parts with special
characteristics for safety or reliability
are indicated in parts lists and circuit
diagrams by the mark.
Electric shock of fire may occur if non-
recommended components or parts
are used.
Keep the same style of wiring .
The Monitor uses insulating tubes
or tapes for safety and some comp-
nents are ke pt at a distance from
P C B surfaces for safety.
Internal leads kept from hot - or high
voltage part s by clamper s or styling .
R eturn wiring to original condition after
repair to prevent electric shock or fire.
Perform safety check after finishing .
Every part (removed screws, compo-
nent and wiring) should be returned to
to its original condition.
Check around the repair position for
damage and measure insulation
impedance by using a meg-ohm me-
ter.
Confirm that the value of impedance
is more than 4M ohm.
E lectric shock or fire may occur if
th e value is less than 4M ohm.
The code and combination circuit of the
HDCP is not a repairable item.
Never remove the shield case that is
assembled to the code and combination
circuit of the HDCP.
WARNING
14.Schematic diagrams ------------------------------ 60