Service manual

ABCDEFGH I J
1
2
3
4
5
6
7
104
RX-V665/HTR-6260
W3701A
W3702A
CB372
CB373
IC371
IC372
IC374
CB378
CB371
IC375
CB379
CB381
W3801
CB382
VIDEO (2) P.C.B. (Side A)
1
7
3
KRA
4
VIDEO (3) P.C.B. (Side A)
DIGITAL (CB7)
DIGITAL (CB24)
U, C, A, F models
R, L models
AC_PWR
DGND
+5.5V +5.5V
GND GND
5.5V 5.5V
GND GND
DEST
PRY
/RESET
ACPWR_DET
DGND
+3.3M
PRY_IN
AC_PWR DGND +5.5V +5.5V GND GND PRY_IN
VIDEO (7)
(W3701B)(W3702B)
R, L models
MAIN (4)
(W1006A)(W1006B)
BE
WH
AC IN
5 k-ohms
10 W
1W3801
(+5.5V)
CB382
(/RESET)
2
POWER ON POWER OFF
1W3801
(+5.5V)
CB382
(/RESET)
2
POWER ON
POINT G 1 / W3801 (+5.5V), 2 / CB382 (/RESET)
1 2
G
• Semiconductor Location
Ref No. Location
D3701 D3
D3703 D3
D3705 D3
D3706 E4
D3707 C4
D3709 D4
D3710 E4
Ref No. Location
IC371 E3
IC372 E4
IC374 E5
IC375 C5
Q3801 I4
Q3802 I4
CAUTION !
Safety measures
• Some internal parts in this product contain high voltages and are dangerous. Be sure to take safety
measures during servicing, such as wearing insulating gloves.
• Note that positions indicated below are dangerous even after the power is turned off because an elec-
tric charge remains and a high voltage continues to exist there.
Before starting any repair work, perform discharge by connecting a discharge resistor (5k-ohms/10W)
between terminals at following positions. The time required for discharging is about 30 seconds.
C3703 on VIDEO (2) P.C.B.