Panasonic SL-DZ1200PP / SL-DZ1200EB / SL-DZ1200EG / SL-DZ1200EP / SL-DZ1200GN Service Manual ▷ View online
1
Safety Precaution
3
2
Caution for AC Mains Lead
4
3
Handling Precautions for Optical pick-up
5
3.1.
Handling of traverse deck optical pick-up
5
3.2.
Grounding for electrostatic breakdown prevention
5
4
Precaution of Laser Diode
6
5
Accessories
7
6
Main features
8
7
Component part names
9
8
Operation Checks and Component Replacement Procedures
10
8.1.
Checking for the control panel (1) P.C.B. and control panel
(2) P.C.B..
10
8.2.
Checking for the main P.C.B.
10
8.3.
Checking for the jack P.C.B.
10
8.4.
Checking for the power supply P.C.B.
11
8.5.
Checking for the CD servo P.C.B.
11
8.6.
Replacement for the LED P.C.B., loading motor P.C.B.,
CD mouse ass ’
y and motor
12
8.7.
Replacement for the center panel ass ’
y and LCD 13
8.8.
Replacement for the connection P.C.B. and sensor P.C.b.
14
8.9.
Replacement for the turntable ass ’
y and slip plate ass ’
y
14
8.10. Replacement for the control panel (2) P.C.B., button base
B and button base C.
16
8.11. Replacement for the control panel (1) P.C.B., reverse
switch P.C.B., button base A and button base D
16
8.12. Replacement for the CD servo P.C.B.
17
8.13. Replacement for the optical pick-up
18
9
Technological Explanation of the Circuit and Signal
20
10 Self-diagnosis function
34
10.1. DEVICE TEST
34
10.2. TT BRAKE TEST
35
10.3. TT SPEED (Phase) TEST
35
10.4. SW &
LED TEST
36
10.5. LED TEST
36
10.6. SD SAVE /
LOAD
37
10.7. INITIAL
37
10.8. CD UNIT TEST 1
37
11 Cautions after Exchange of the Flash ROM (IC23)
38
11.1. About obtaining the program.
38
11.2. Program Writing to the Flash ROM (IC23) after
Replacement
39
11.3. Program Confirmation
40
11.4. Adjusting the Display Contrast
41
12 Type Illustration of IC ’
s, Transistors and Diodes
42
13 Schematic Diagram
43
13.1. Schematic Diagram Notes
43
13.2. Schematic Diagram
45
14 Printed Circuit Board
61
14.1. CD SERVO P.C.B. test point table
61
14.2. Printed Circuit Board
63
15 Block Diagram
69
16 Wiring Connection Diagram
75
17 Terminal Function of ICs
77
17.1. IC2(C2CBHH000043): SYSTEM CONTROL (UI
Microcomputer)
77
17.2. IC14(C0ZBZ0000910): MULTIMEDIA DIGITAL IMAGE
PROCESSOR (SC Microcomputer)
78
17.3. IC34(C0ZBZ0000910): MULTIMEDIA DIGITAL IMAGE
PROCESSOR (MD Microcomputer)
80
17.4. IC1(AN8882SB-E1): SERVO AMP.
83
17.5. IC102 (C2BBGE000781): SYSTEM CONTROL
83
18 Replacement Parts List
85
18.1. Component, Accessory, and Packaging Parts
85
18.2. CD Mechanism Parts
91
19 Cabinet Parts Location
95
20 CD Mechanism Parts Location
97
21 Packaging
98
CONTENTS
Page
Page
2
SL-DZ1200PP / SL-DZ1200EB / SL-DZ1200EG / SL-DZ1200EP / SL-DZ1200GN
1 Safety Precaution
(This “Safety Precaution” is applied only in U.S.A.)
1. Before servicing, unplug the power cord to prevent an electric shock.
2. When replacing parts, use only manufacturer’s recommended components for safety.
3. Check the condition of the power cord. Replace if wear or damage is evident.
4. After servicing, be sure to restore the lead dress, insulation barriers, insulation papers, shields, etc.
5. Before returning the serviced equipment to the customer, be sure to make the following insulation resistance test to prevent the
customer from being exposed to a shock hazard.
■Insulation Resistance Test
1. Unplug the power cord and short the two prongs of the plug with a jumper wire.
2. Turn on the power switch.
3. Measure the resistance value with ohmmeter between the jumper AC plug and each exposed metal cabinet part, such as screw
heads, control shafts, handle brackets, etc. Equipment with antenna terminals should read between 3M
Ω
and 5.2M
Ω
to
allexposedparts. (Fig. A) Equipment without antenna terminals should read approximately infinity to all exposed parts. (Fig. B)
*Note: Some exposed partsmay beisolated from the chassis by design. These will read infinity.
*Note: Some exposed partsmay beisolated from the chassis by design. These will read infinity.
(Fig. A)
(Fig. B)
4. If the measurement is outside the specified limits, there is a possibility of a shock hazard. The equipment should be repaired
and rechecked before it is returned to the customer.
3
SL-DZ1200PP / SL-DZ1200EB / SL-DZ1200EG / SL-DZ1200EP / SL-DZ1200GN
2 Caution for AC Mains Lead
4
SL-DZ1200PP / SL-DZ1200EB / SL-DZ1200EG / SL-DZ1200EP / SL-DZ1200GN
The laser diode in the optical pick-up may break down due to
potential difference caused by static electricity of clothes or
human body.
potential difference caused by static electricity of clothes or
human body.
So be careful of electrostatic breakdown during repair of the
optical pick-up.
optical pick-up.
3.1. Handling of traverse deck
optical pick-up
1. Do not subject the optical pick-up to static electricity as it is
extremely sensitive to electrical shock.
2. To protect the laser diode against electrostatic breakdown,
short the flexible board (FFC board) with a clip or similar
object. Refer to Fig. 2-1.
object. Refer to Fig. 2-1.
3. Take care not to apply excessive stress to the flexible board
(FFC board).
4. Do not turn the variable resistor (laser power adjustment). It
has already been adjusted. Refer to Fig. 2-1.
Fig. 2-1.
3.2. Grounding for electrostatic
breakdown prevention
3.2.1. Human body grounding
Use the anti-static wrist strap to discharge the static electricity
from your body. Refer to Fig. 2-2.
from your body. Refer to Fig. 2-2.
Fig. 2-2.
3.2.2. Work table grounding
Put a conductive material (sheet) or steel sheet on the area
where the optical pick-up is placed, and ground the sheet.
Refer to Fig. 2-3.
where the optical pick-up is placed, and ground the sheet.
Refer to Fig. 2-3.
Fig. 2-3.
Caution:
The static electricity of your clothes will not be grounded
through the wrist strap.
through the wrist strap.
So take care not to let your clothes touch the optical pick-
up.
up.
3 Handling Precautions for Optical pick-up
5
SL-DZ1200PP / SL-DZ1200EB / SL-DZ1200EG / SL-DZ1200EP / SL-DZ1200GN