5-4-3. Vc PWM Duty (H) adjustment method
1.Set the Manual mode and set the item No. to 763. LCD display
763 VchPWM XX
2.Connect a digital voltmeter to TP901(VC) on the main board and adjust + key and – key on the remote control. Adjustment value:2.75V
Standard value:2.735 to 2.765V
MAIN BOARD (SIDE A)
R903 |
| 28 | 25 |
| 20 | 15 |
| |
C905 | 29 |
|
|
|
|
| 14 |
|
30 |
|
| IC901 |
|
| |||
R901 |
|
|
| 10 C918 | ||||
C920 | 35 |
|
|
|
|
|
| R920 |
|
|
|
|
|
|
| ||
|
|
|
|
|
| 5 | R921 | |
|
|
|
|
|
|
| ||
C919 | 40 |
|
|
|
|
|
|
|
42 |
|
|
|
|
| 1 |
| |
| 43 45 |
|
| 50 | 55 56 |
| ||
C911 |
|
|
| |||||
R950 | C917 | C915 |
|
| ||||
|
|
|
| R946 | R948 | TP901 (VC) |
| |
|
|
|
|
|
|
| ||
5-4-5.Electrical offset adjustment method
Note: Doing adjustment by the state that a disc does not enter.
1.Confirm the power voltage is 1.5V.
2.Set to the test mode.
3.Press the – key activates the overall adjustment mode. LCD display
000 Assy11
4.Press the DISPLAY key. LCD display
030 Ofst**
5.If result of electrical offset adjustment is OK,the following dis- play appears.
LCD display
030 OfstOK
5-5. OVERALL ADJUSTMENT MODE
5-5-1. Overall adjustment mode structure
digital voltmeter
TP901 (VC)
TEST MODE (Display Check Mode)
VOLUME – key
Overall Adjustment Title Display(ASSY**)
.key
CD overall Adjustment
xkey
3. Press X key to write the adjustment value.
5-4-4. Vl PWM Duty adjustment method
1.Set the Manual mode and set the item No. to 764. LCD display
764 VlPWM XX
2.Connect a digital voltmeter to TP917 (VL) on the main board and adjust + key and – key on the remote control. Adjustment value:2.23V
Standard value:2.22 to 2.235V
digital voltmeter | MAIN BOARD (SIDE A) | |
| ||
TP917 |
|
|
(VL) |
| TP917 |
|
| (VL) |
| L903 | D902 |
|
| |
L902 | C904 |
L904 |
3.Press X key to write the adjustment value. LCD display
000 ADJ OK
|
|
|
|
|
|
|
|
|
| key | |
|
|
|
|
|
|
|
| > N | |||
|
| key |
|
|
|
|
|
| x key | ||
|
|
|
|
| |||||||
| > N | MO overall |
|
| |||||||
|
|
|
| ||||||||
|
|
| key | Adjustment |
|
|
| ||||
|
|
|
|
|
|
|
| ||||
|
|
|
| ||||||||
| DISPLAY | Electrical offset | x key | ||||||||
|
|
|
|
|
| ||||||
|
|
|
| key | Adjustment key | x key | |||||
|
|
|
| ||||||||
|
|
| |||||||||
| PLAY MODE | Power Supply | |||||||||
|
|
|
| ||||||||
|
|
|
|
|
| Adjustment |
| ||||
|
|
|
|
|
|
|
|
|
|
|
|
Note: The overall adjustments should be always performed in the sequence of CD t MO adjustments.
5-5-2. Overall CD and MO adjustment method
1. Set the TEST MODE and press – key to set the Overall Ad- justment mode.
LCD display
000 Assy11
2.Insert CD disc in the set, and press . key to set the Overall CD Adjustment mode.
Automatic adjustments are made.
LCD display
XXXCD RUN
XXX:Item No. for which an adjustment is being executed.
12
