Sony STR-DB780 Service Manual

62
STR-DA1ES/DB780
Ref. No. Part No. Description Remark
Ref. No. Part No. Description Remark
351 3-905-609-11 SCREW (TRANSISTOR)
352 A-4729-149-A BIAS BOARD, COMPLETE (DA1ES: US)
352 A-4729-150-A BIAS BOARD, COMPLETE
(DB780: SP, MY, TW, KR, CH)
352 A-4729-151-A BIAS BOARD, COMPLETE (DB780: AEP, UK)
352 A-4729-551-A BIAS BOARD, COMPLETE (DA1ES: CND)
Q431 8-729-026-08 TRANSISTOR 2SC4495
Q491 8-729-026-08 TRANSISTOR 2SC4495
Q531 8-729-026-08 TRANSISTOR 2SC4495
Q581 8-729-026-08 TRANSISTOR 2SC4495
Q631 8-729-026-08 TRANSISTOR 2SC4495
#1 7-685-646-79 SCREW +BVTP 3X8 TYPE2 IT-3
351
Q631
Q431
Q491
Q531
Q581
#1
not supplied
352
not supplied
main board section
351
6-8. BIAS BOARD SECTION

Sony STR-DB780 Specifications

General

Type	Stereo Receiver
Total Harmonic Distortion	0.09 %
Digital inputs	2 Optical, 1 Coaxial
Weight	10.5 kg
Video inputs	composite
Video outputs	1 composite, 1 S-Video
Output Power	100 Watts (8 Ohms, 20 Hz - 20 kHz, 0.09% THD)
Signal-to-Noise Ratio	96 dB (Line in)
Input Sensitivity	150 mV (Line in)