Panasonic PT-RZ120 (serv.man2) Service Manual ▷ View online
DIS-4
SECTION 2 DISASSEMBLY PROCEDURES
< RZ120 >
1. 3. Electrical parts location (PCBs)
A
M1
RR
BR
D
M1
LD1-1
LD1-2
LD2-2
LD2-1
CW(for CW)
CW(for PW1)
CW(for PW2)
RB
M3
WL
FM
LS
RM
P
R
DR(LD1)
DR(LD2)
S
DG
RT
Board
Function
Board
Function
A
Image processing (Main CPU)
M3
Color (luminance) sensor
DG
Image processing (DSP)
R
Front IR receiver / Status indicator
FM
DMD driver
BR
Rear IR receiver / Exhaust fans relay
S
Control panel
CW
Wheel rotation detection (PW / CW)
RM
Relay Board (lens mount)
LS
Lens mount detection
RT
Relay Board (Lighting case 2)
D
LD power supply
RB
Relay Board (Lighting case 1)
DR
LD driver
RR
Relay Board (LD driver fan)
P
Power supply
M1
Temperature sensor (Intake/Exhaust)
WL
GSM receiver (Asian models only)
DIS-5
SECTION 2 DISASSEMBLY PROCEDURES
< RZ120 >
1. 4. Electrical parts location (Fans)
EXHAUST1
POWE
R
DMD
COLOR WHEEL
PHOSPHOR
WHEEL2
PHOSPHOR
PHOSPHOR
WHEEL1
LD DRIVER
PW2
PW1
RADIA
TOR
1
RADIA
TOR2
RADIA
TOR3
EXHAUST2
EXHAUST
3
PRISM
Fan
Function
Fan
Function
POWER
Circuit block cooling
EXHAUST1
Exhaust
DMD
DMD block cooling
EXHAUST2
PRISM
EXHAUST3
PW1
Phosphor wheel cooling
RADIATOR1
Radiator cooling
PW2
RADIATOR2
LD DRIVER
LD driver circuit cooling
RADIATOR3
DIS-6
SECTION 2 DISASSEMBLY PROCEDURES
< RZ120 >
2. Disassembly Instructions
• Before disassembly of the projector, turn off the power switch and disconnect the power plug from the wall outlet.
• During the disassemble work, please wear gloves to protect your hands from metal parts and shield plate.
• Electrical parts such as PCBs, may get damaged by electro-statics discharge and surges which affects the set
reliability. Please take care for electro-static discharges by using grounded wrist straps to release the electricity
from the body.
• When tore off sticky tapes, use a new thing without reusing it on the occasion of assembling.
2. 1. Removing / inserting procedure of flexible cable
• For connecting or disconnecting the flexible cables*1, please perform the following procedure.
*1: DG-PCB between FM-PCB
2. 1. 1. Removal procedure
1. Push the unlock buttons of FFC connectors in the direction of arrows.
2. 1) Push and hold the unlock buttons.
2) Gently pull the flexible cable in parallel to the P.C.Board.
Push the two unlock buttons at the same time.
Make sure push the unlock buttons vertically on the P.C.Board.
Don't push buttons slantingly.
Gently pull the flexible cable
in parallel to the P.C.Board.
< Operation image >
Push and hold the unlock buttons.
Gently pull the flexible cable.
DIS-7
SECTION 2 DISASSEMBLY PROCEDURES
< RZ120 >
2. 1. 2. Insert procedure
1. Keep down the terminal side of the flexible cable. Set the flexible cable to the center of connector.
2. 1) Gently insert the flexible cable in parallel to the PCB.
2) Please insert the flexible cable until the clicking sound is heard.
[Note]
1. In case of not taking the correct procedures, the FFC pattern on the flexible cable will peel and the contact failure may
occur.
2. Symptom for this issue
t Does not start. The trim wheel is not rotated and the light sources does not light.
t Screen noise occur. Vertical line noise etc.
In the case of diagonal condition, the flexible
cable is not locked. Loose connection occurs.
< Operation image >
If terminal is peeling,
replace the flexible cable with new one.
Do not set the connecting pattern up.
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