Onkyo SKC-940C

HTP-940
SERVICE MANUAL
SERVICE MANUAL
7.1-CH HOME THEATER SPEAKER PACKAGE
Black model
MODEL HTP-940(B)
120V AC, 60Hz
230-240V AC, 50Hz
B MDC
B MPP
Ref. No. 3961
062006
- - Front Speakers (L/R) - -
"SKF-940F"
- - Center Speaker - -
"SKC-940C"
- - Surround Speakers (L/R) - -
"SKM-940S"
- - Surround Back Speakers (L/R) - -
"SKB-940"
- - Powered Subwoofer - -
"SKW-940"
SAFETY-RELATED COMPONENT
WARNING!!
COMPONENTS IDENTIFIED BY MARK ON THE
SCHEMATIC DIAGRAM AND IN THE PARTS LIST ARE
CRITICAL FOR RISK OF FIRE AND ELECTRIC SHOCK.
REPLACE THESE COMPONENTS WITH ONKYO
PARTS WHOSE PART NUMBERS APPEAR AS SHOWN
IN THIS MANUAL.
MAKE LEAKAGE-CURRENT OR RESISTANCE
MEASUREMENTS TO DETERMINE THAT EXPOSED
PARTS ARE ACCEPTABLY INSULATED FROM THE
SUPPLY CIRCUIT BEFORE RETURNING THE
APPLIANCE TO THE CUSTOMER.
w w w . x i a o y u 1 6 3 . c o m
Q Q
3
7
6 3
1 5 1 5
0 9 9
2
8 9
4 2
9 8
T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

Onkyo SKC-940C Specifications

General

Type	Center Speaker
Tweeter	2.5 cm Balanced-Dome
Impedance	6 Ohms
Maximum Input Power	130 W
Configuration	2-way
Sensitivity	86 dB

Summary

Safety-Related Component Warning

Safety Component Description

Details components critical for fire and electric shock risk, emphasizing replacement with specified parts.

Exploded View: Powered Subwoofer Part 1

Exploded View: Powered Subwoofer Part 2

Exploded View: Front Speakers

Exploded View: Center Speaker

Exploded View: Surround Speakers

Exploded View: Surround Back Speakers

Schematic Diagram: Powered Subwoofer

U01 Main PC Board Schematic

Schematic diagram for the main PC board (U01) of the powered subwoofer.

Cautionary Notes and Component Information

Safety and Component Identification Notes

Notes on safety-critical components, transistor/diode equivalents, and general markings.

Adjustment Procedure: Idling Current

Procedure Steps for Idling Current Adjustment

Detailed steps for adjusting idling current, including test points, multimeter readings, and component adjustments.

Exploded Parts List: Powered Subwoofer

Parts List: Amplifier Section

List of parts for the amplifier section of the powered subwoofer.

Printed Circuit Board Parts List

Parts List: U01, U03, U05 Boards

List of components for main, power transformer, and power switch PC boards.