Pioneer HTVA-2 Service manual

ORDER NO.

RRV1979

AMPLIFIER

HTV-A2

÷ Refer to the service manual RRV1957 for HTV-A1/KUCXJ.

THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).

Type

KUCXJ AC120V

The HTV-A2 is a part of the Powered Subwoofer HTV-SW2. The Powered Subwoofer HTV-SW2 is a
part of the Hometheater System HTV-2.

Hometheater System Control Center
HTV-2 HTV-C2 (service manual RRV1978)
(service manual RRV1977)

This product does not operate normally by itself. Please connect it to the Control Center HTV-C2
for operating inspection. If operation confirmation for the unit by itself can not be avoided, refer to
“ 7.2 DIAGNOSIS ” on the service manual RRV1957.

Model

HTV-A2

Power Requirement

Powered Subwoofer
HTV-SW2 (service manual RRV1970)

Amplifier
HTV-A2 (this service manual)

Remarks

PIONEER ELECTRONIC CORPORATION 4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, Japan

PIONEER ELECTRONICS SERVICE, INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A.
PIONEER ELECTRONIC (EUROPE) N.V . Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium
PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 501 Orchard Road, #10-00 Wheelock Place, Singapore 238880

PIONEER ELECTRONIC CORPORATION 1998

T–ZZE JUNE 1998 Printed in Japan

HTV-A2

CONTRAST OF MISCELLANEOUS PARTS

NOTES : ÷ Parts marked by “ NSP ” are generally unavailable because they are not in our Master Spare Parts List.

÷ The mark found on some component parts indicates the importance of the safety factor of the part.

Therefore, when replacing, be sure to use parts of identical designation.

÷ Reference Nos. indicate the pages and Nos. in the service manual for the base model.
÷ When ordering resistors, first convert resistance values into code form as shown in the following examples.

Ex. 1 When there are 2 effective digits (any digit apart from 0), such as 560 ohm and 47k ohm (tolerance is shown by

J = 5%, and K = 10%).
560 Ω = 56 × 10
47k Ω = 47 × 10

0.5 Ω = R50 ...................................................................... RN2H Â 5 0 K

1 Ω = 1R0 ......................................................................... RS1P 1 Â 0 K

Ex. 2 When there are 3 effective digits (such as in high precision metal film resistors).

5.62k Ω = 562 × 10

7 CONTRAST TABLE

HTV-A2/KUCXJ and HTV-A1/KUCXJ are constructed the same except for the following:

1

= 561................................................... RD1/4PU 5 6 1 J

3

= 473 .................................................. RD1/4PU 4 7 3 J

1

= 5621 ........................................... RN1/4PC 5 6 2 1 F

Ref.

Mark Symbol and Description

No.

PCB ASSEMBLIES

MOTHER ASSY AWM7368 AWM7370
P5– 1 AFPS ASSY AWU7073 AWU7079 ∗1
P5– 2 PAMP ASSY AWU7074 AWU7080 ∗1
P5– 3 PT PRI ASSY AWU7075 AWU7081 ∗2
P5– 4 PT SEC ASSY AWU7076 AWU7082 ∗3

EXTERIOR

P5– 6 Power Transformer (T1) ATS7212 ATS7213
P5– 7 Fuse (5A, FU1) REK1083 Not used
P5– 7 Fuse (6.3A, FU1) Not used REK1085

P5–11 NSP Heat Sink ANH7076 ANH7079
P5–26 NSP Name Label AAX7614 AAX7637

NSP Fuse Card Not used AAX2374 ∗4

HTV-A1/KUCXJ HTV-A2/KUCXJ

Part No.

∗1 Refer to “ CONTRAST OF PCB ASSEMBLIES ” .
∗2 Although AWU7075 and AWU7081 are different in part number, they have the same service parts.
∗3 Although AWU7076 and AWU7082 are different in part number, they have the same service parts.
∗4 For PT PRI ASSY.

Remarks

2