Pioneer PD-F1007 Service Manual - Page 36
Disc-detect Circuit Adjustment
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PD-F1007 6.2.3 Check and Adjustment 1. Disc-detect Circuit Adjustment GND V+B V-B JIG (Peak hold circuit) SW INPUT OUTPUT MAIN BOARD ASSY W243 V+B W342 GND W233 V-B Digital multi meter GND GND (Under Base) A VR601 TP601 VOLUME BOARD ASSY Peak hold voltage (mV) to 840 840 to 860 860 to 900 900 to 1150 1150 to 1290 1290 to 1500 1500 to 1820 1820 to 2200 2200 to Revised voltage (mV) +20 +10 + 5 OK - 5 -10 -20 -30 -40 Photocell for detection 36
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PD-F1007
36
VOLUME BOARD ASSY
Digital multi meter
GND
(Under Base)
GND
INPUT
GND
V+B
V-B
SW
OUTPUT
MAIN BOARD ASSY
JIG
(Peak hold circuit)
W243
V+B
W342
GND
W233
V-B
VR601
TP601
Photocell for detection
1. Disc-detect Circuit Adjustment
6.2.3 Check and Adjustment
Peak hold voltage (mV)
to 840
840 to 860
860 to 900
900 to 1150
1150 to 1290
1290 to 1500
1500 to 1820
1820 to 2200
2200 to
Revised voltage (mV)
+20
+10
+ 5
OK
- 5
-10
-20
-30
-40
A