Notes When Using Service Manual; Value Units Used In Parts List; Values In Schematic Diagrams; Identifications Of Sides A/B In Circuit Board Diagrams - Hitachi DZMV380EAU Service Manual

Safety Precaution for Repair > Notes When Using Service Manual

1-2 Notes When Using Service Manual

The following shows the contents to be noted when using service manual:

1-2-1 Value units used in parts list

Certain symbols are indicated below for value units of resistors, capacitors and coils in parts list. When you read
them note the following regular indications:
Parts Indication in list
KOHM ........................................... k
Resistor
UF ................................................ µF
Capacitor
PF ................................................ pF
UH ................................................ µH
Coil
MH ............................................... mH

1-2-2 Values in schematic diagrams

The values, dielectric strength (power capacitance) and tolerances of the resistors (excluding
variable resistors) and capacitors are indicated in the schematic diagrams using abbreviations.
[Resistors]
Item
No indication ...................................
K ................................................... k
Value
M .................................................. M
No indication ............................. ±5%
Tolerance (All tolerances other than ±5% are
indicated in schematic diagrams)
No indication ............................ 1/8W
(1/16W for leadless resistors without
Power
indication)
capacitance
All capacitances other than the above
are indicated in schematic diagrams.

1-2-3 Identifications of sides A/B in circuit board diagrams

1) Board having a pattern on one side and parts on both sides.
Side A: Shows discrete parts, viewed from the pattern side.
Side B: Shows leadless parts, viewed from the pattern side.
2) Board having patterns on both sides and parts on both sides.
Side A: Shows parts and patterns which can be seen when the case is opened.
Side B: Shows parts and the pattern on the back of side A.
Regular indication
Indication
1 - 2
[Capacitors]
Item
No indication ................................. µF
Value
P ................................................... pF
No indication .............................. 50V
Dielectric
(All dielectric strengths other than 50V
strength
are indicated in schematic diagrams)
[Coils]
Item
µ .................................................... µH
Value
m .................................................. mH
Indication
Indication