25
HCD-CP500K/CP500MD
CD SECITON
[CD SERVO Test Mode]
• Use this mode when checking CD servo.
Procedure:
1.
Press
?
/
1
button to turn the set ON.
2.
Select the function “CD”.
3.
Press three buttons
X
(TAPE),
REC MODE
and
Z
(CD) simultaneously.
4.
Press the appropriate button for the following tests.
Button
Function
Button
Function
Z
(CD)
TEST 1
PLAY MODE DIRECTION
TEST 6
x
(CD)
TEST 2
u
(CD)
TEST 7
>
TEST 3
x
(MD)
TEST 8
.
TEST 4
x
(TAPE)
TEST 9
REPEAT/STEREO/MONO
TEST 5
11. WHEN MEMORY NG IS DISPLAYED
If the nonvolatile memory data is abnormal, “E001 MEMORY NG” will be displayed so that the MD deck does not continue operations. In
this case, set the test mode promptly and perform the following procedure.
Procedure:
1. Enter the MD test mode.
2. Normally a message for selecting the test mode will be displayed. However if the nonvolatile memory is abnormal, the following will be
displayed “INIT EEP?”.
3. Press the
x
(MD) and
Z
(MD) buttons simultaneously.
4. Press the
.
“R”
or
>
“R”
button to display “MDM-7B”.
5. Press the
REC MODE
button. If the nonvolatile memory is successfully overwritten, the normal MD test mode will be set and a message
to select the MD test mode will be displayed.
12. CHECKS PRIOR TO PARTS REPLACEMENT AND ADJUSTMENTS IN MD
Before performing repairs, perform the following checks to determine the faulty locations up to a certain extent.
Details of the procedures are described in “Section 6 Electrical Adjustments”.
• 0.9 mW power
Specified value : figure1
• 7.0 mW power
Specified value : figure2
Iop (at 7.0mW)
• Labeled on the optical pick-up
Iop value
±
10mA
• Unsatisfactory if displayed as “NG : XXXX”NG
(XXXX are arbitrary numbers)
• Unsatisfactory if displayed as “T=@@ (##) [NG]”
NG
(@@, ## are both arbitrary numbers)
Laser power check
(6-2 : See page 31)
Auto check
(6-4 : See page 32)
Temperature
compensation
offset check
Criteria for Determination
(Unsatisfactory if specified value is not satisfied)
• Clean the optical pick-up
• Adjust again
• Replace the optical pick-up
• Replace the optical pick-up
• Replace the optical pick-up
• Check for disconnection of the circuits around
D101 (BD board)
• Check the signals around IC101, IC151, CN102,
CN103 (BD board)
Measure if unsatisfactory
Note:
The criteria for determination above is intended merely to determine if satisfactory or not, and does not serve as the specified value for adjustments.
When performing adjustments, use the specified values for adjustments.
5.
To exit from this mode, turn off the set.
Figure1:
SPECIFIED VALUE
KMS-260B
KMS-260E
0.85 to 0.91 mW
0.90 to 0.96 mW
Figure2:
SPECIFIED VALUE
KMS-260B
KMS-260E
6.8 to 7.2 mW
7.0 to 7.5 mW
(6-1 : See page 31)
Summary of Contents for HCD-CP500K
Page 39: ...39 HCD CP500K CP500MD MEMO ...
Page 47: ...HCD CP500K CP500MD 47 47 7 4 SCHEMATIC DIAGRAM CD BOARD Page 52 ...
Page 49: ...HCD CP500K CP500MD 49 49 7 6 SCHEMATIC DIAGRAM BD BOARD 1 2 Page 50 Page 50 Page 50 ...
Page 55: ...HCD CP500K CP500MD 55 55 7 12 SCHEMATIC DIAGRAM TC BOARD IC B D Page 52 ...
Page 59: ...HCD CP500K CP500MD 59 59 7 16 SCHEMATIC DIAGRAM CONTROL SECTION Page 53 Page 52 Page 52 ...
Page 93: ...93 HCD CP500K CP500MD MEMO ...