Service manual

GX30
5 – 1
CONFIDENTIAL
PhoneGX30Service ManualService ManualMarketE
CHAPTER 5. SCHEMATIC DIAGRAM AND WIRING SIDE OF P.W.BOARD
[1] Notes on schematic diagram
•Resistor:
To differentiate the units of resistors, the symbols K and M are
used. The symbol K means 1000 ohm and the symbol M means
1000 kohm. The resistor without any symbol is an ohm resistor.
• Capacitor:
To indicate the unit of capacitor, the symbol is used.
The symbol P means pico-farad and the unit of the capacitor with-
out such a symbol is microfarad. As to electrolytic capacitor, the
expression “capacitance/withstand voltage” is used.
(CH), (RH), (UJ): Temperature compensation
(ML): Mylar type
(S): Styrol type
(PP): Polypropylene type
• The indicated voltage in each section is the one measured by Digi-
tal Multimeter between such a section and the chassis with no sig-
nal given.
• Conditions: SIM card inserted, power on, in stand-by mode
(opened)
• Schematic diagram and Wiring Side of P.W. Board for this model
are subject to change for improvement without prior notice.
• Parts marked with “ ” are important for maintaining the safety of
the set. Be sure to replace these parts with specified ones for main-
taining the safety and performance of the set.
[2] Types of transistor and LED
TOP VIEW
1SS388
1SS405
MA2SD31
MA2SD32
RB160M30
RB521S30
RB551V30
B
(3)
(G)
D1
D1
D2
D2
S1
G1
S2
G2
C
(2)
(D)
E
(1)
(S)
2SK3019
RT1N144 U
TOP
VIEW
NECW008A
TOP VIEW
GP2W0116
TOP VIEW
CPH6311
ECH8603
D
D
G
D
D
S
TOP
VIEW
1
3
6
4
EC4301 C
EC4401 C
PG
PS
PD
PD
TOP
VIEW
TOP
VIEW
1
(D)
2
(D)
3
(G)
6
(D)
5
(D)
4
(S)
MCH6413
TOP
VIEW
HN2S01FU
TOP VIEW
GM56271A
TOP VIEW
TOP VIEW
YPY1105C
TOP VIEW
RSB6.8S
1
1
2
4
3
4
8
5