ONKYO TX-NA906
Manual de Servicio

TX-NR906/NA906
E F G H

<Note> SD-x:XY is short for Shcematic Diagram-x and each socket's location, X=A to H, Y=1 to 5.
C518 C517
+

NOTE THE COMPONENTS IDENTIFIED BY MARK ! ARE CRITICAL FOR SAFETY. REPLACE ONLY WITH PART NUMBER SPECIFIED. VOLTAGE (MEASURED WITH VOLTMETER) IS DC VOLTAGE.(NO INPUT SIGNAL). ALL PNP TRANSISTORS ARE EQUIVALENT TO 2SA1015-GR UNLESS OTHERWISE NOTED. ALL NPN TRANSISTORS ARE EQUIVALENT TO 2SC1815-GR UNLESS OTHERWISE NOTED. ALL DIODES ARE EQUIVALENT TO 1SS133 UNLESS OTHERWISE NOTED. ELECTROLYTIC CAPACITORS ( ) ARE IN uF/WV. ALL CAPACITORS ARE IN pF/50WV UNLESS OTHERWISE NOTED. EX) 030- 3pF, 330- 33pF, 331- 330pF, 333- 0.033uF ALL RESISTORS ARE IN OHMS 1/4WATTS UNLESS OTHERWISE NOTED. THE THICK LINES ON PC BOARD ARE THE PRINTING SIDE OF THE PARTS. EX) PRINTING SIDE CIRCUIT IS SUBJECT TO CHANGE FOR IMPROVEMENT.

TP240

PCICLK2 PCICLK3

TO SD-21:A4 TO SD-20:B1

TO SD-20:G2
+3.3V AN1 12 +7V

Z2ROUT AG
47/16Ta C510

TP242 TP243 TP244 TP245 TP246

1 2 3 4 5 6

TO SD-20:G3

Z2LOUT

AG +7V
C533

+

-7V

.3V

+5V 100/16

+3.3V

TP247 TP248 TP249
220/16Ta 47/10Ta C516 100/6.3 C515
+ + +

4 3 2 1

.3V -7V

TO SD-26:G3 TO SD-26:G4

USBAG

USBDG
+5V

TO SD-26:A2

VBUS1 DM1 DP1 USB1 GND

TP252 TP253 TP254 TP255
0 R414

1 2 3 4 5

TO SD-20:G2 TO SD-24:B2

TXD2 RXD2 XBOOTMODE0 SUTATUS0 FL_WP XRESET SPDIFRX SPDIFTX

TP256 TP257 TP258 TP259 TP260 TP261 TP262 TP263
+3.3V

9 8 7 6 5 4 3 2 1

TO SD-20:G2 SD-25:G3

TP264
R415

TXD1

0

TP265 TP266 TP267

TO SD-25:G4

RXD1

GNDD TXD1 TP268 TP269 RXD1
R416 0

3 4 5 6 7 8 9

TP270 TP271

RESET

P207 P205A P204A P201A P202A

1 2

SD-7:C3 SD-1:D5 SD-8:G2 SD-13:B5

NAAR-9074 NADIS-9085 NATRM-9055 NAASP-9080