Electrical Adjustments - Sony mz-dh10p Service Manual

1. PRECAUTIONS FOR ADJUSTMENT
1. Adjustment must be done in the test mode only. After adjusting,
release the test mode. A key having no particular description
in the text, indicates a set key. Also, for the LCD display, the
LCD on the remote commander is shown.
2. Use the following tools and measuring instruments.
• Digital voltmeter
• Regulated dc power supply (two sets)
• Laser power meter
• CD adjustment disc TDYS-1 (Part No. : 4-963-646-01)
• MD1/HiMD1 hybrid adjustment disc MDW-74/GA2
(Part No. : J-2503-022-A)
• Hi-MD3 adjustment disc HMD1GSDJ
(Part No. : 8-892-388-38) *1
• Remote commander in accessories (with LCD)
• Battery charging stand and AC adapter in accessories
*1) Hi-MD3 adjustment disc (HMD1GSDJ) is consumable.
Therefore if it is used 400 times, exchange it for a new.
2. ADJUSTMENT SEQUENCE
Adjustment must be done with the following order.
Adjustment order:
1. Entering the test mode
2. Initialize the adjustment value
3. Power supply voltage adjustment
4. Charge function check
5. Laser power check
6. Setting the adjustment values
7. Servo Overall adjustment
8. Resume clear
9. Releasing the test mode
3. ADJUSTMENT OF THE EACH ITEM
3-1. Entering The Test Mode
Refer to the "SECTION 4. TEST MODE". (See page 13)
3-2. Initialize The Adjustment Value
Procedure:
1. In the test mode (Display Check mode), press the [VOL--] key
to enter the Overall adjustment mode.
2. Press the [DOWNLOAD] key and display "911 ResOK?".
3. Press the ,
u ENT
+
remote commander to display "911 Reset!" and initialize the
adjustment values.
4. Press the key and back to Display Check mode.
x
3-3. Power Supply Voltage Adjustment
Adjustment must be done with the following order.
3-3-1. Setting
Procedure:
1. Apply the voltage of 3.7 V to the battery terminals, and enter
the test mode (Display Check mode).
2. Press the [VOL+] key to enter the Manual mode.
3. Press the [VOL+] key twice to display as follows.
Display of the remote commander
002 POWER
SECTION 5

ELECTRICAL ADJUSTMENTS

key on the set or key on the
–
4. Press the key once, press the [VOL+] key once, and press
>
the key once again to display as follows.
>
Display of the remote commander
210 PwrAdj
5. Repeat the next procedures (3-3-2. PwrAdj Adjustments), and
adjust all contents of "table 3-3-1. PwrAdj Specifications".
3-3-2. PwrAdj adjustments
Repeat the following procedures and adjust all contents of "table 3-
3-1. PwrAdj Specifications".
Example Display (Item No. 2211)
211 VC1
adjustment value (hexadecimal)
Procedure:
1. Connect the digital voltmeter to measuring point (refer to the
following table) and TP461 (GND).
2. Press the key to change the item numberr to 2211.
>
3. Adjust with [VOL+]/[VOL--] keys so that the value of digital
voltmeter becomes specification value.
4. Press the ,
ENT
u
+
remote commander to write the adjusted value.(Shifts to the
next item automatically)
5. Repeat adjustment from step 3 until item number 2233.
ItemNo. Display Specification value Measuring point
2211 211 VC1 **
2212 212 VC1H N **
2213 213 VC2 **
2214 214 DDC3 L **
2215 215 DDC3 H **
2216 216 REG1 L **
2217 217 REG1 H **
2218 218 REG2 1 **
2219 219 REG2 2 **
2221 221 REG2 3 **
2222 222 REG2 4 **
2223 223 REG3 **
2224 224 VREC 1 **
2225 225 VREC 2 **
2226 226 VREC 3 **
2227 227 VREC 4 **
2228 228 VREC 5 **
2229 229 VREC 6 **
2231 231 VREC 7 **
2232 232 VREC 8 **
2233 233 VREC 9 **
Note1: "**" is adjustment value (hexadecimal number).
Note2: Ground point of all measuring points is TP461.
Note3: Refer to page 18 for adjustment location.
Table 3-3-1. PwrAdj Specifications
MZ-DH10P
Ver. 1.1
**
key on the set or key on the
–
2.05V + 0.02V TP8003
2.25V ± 0.01V
TP8003
1.20V + 0.01V TP602
2.60V ± 0.015V
TP913
3.10V ± 0.015V
TP913
2.32V ± 0.02V
TP901
3.02V ± 0.02V
TP901
2.275V ± 0.01V
TP509
2.480V ± 0.01V
TP509
2.740V ± 0.01V
TP509
2.985V ± 0.01V
TP509
2.52V ± 0.02V
TP516
0.89V ± 0.02V
TP601
1.08V ± 0.02V
TP601
1.52V ± 0.02V
TP601
2.27V ± 0.02V
TP601
2.97V ± 0.02V
TP601
0.94V ± 0.02V
TP601
1.28V ± 0.02V
TP601
2.57V ± 0.02V
TP601
2.57V ± 0.02V
TP601
17