HBD-DZ340, HBD-DZ340K, HBD-DZ640K, HBD-DZ740 - Sony Audio Service Manual (repair manual). Page 7

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HBD-DZ340/DZ340K/DZ640K/DZ740
7
Discharge the charged electricity in capacitors to prevent electric shock as follows
When disassembling the machine, be sure to discharge the charged electricity in the following capacitors.
Use a resistor of 800 ohms, 2 Watts for discharging the following capacitors.
POWER board
   C903: 390V
   C932, C933, C934, CN904: 30V
CDM  SERVICE  POSITION
Point of capacitor discharge for C903:
Connect to the foot of C903.
800
:/2W
DVD mechanism deck
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