Pioneer HTVC-1 Service manual

• HTV-SW1

ORDER NO.

SURROUND MODE

STANDBY/ON

• HTV-C1

DISPLAY INPUT

VOLUME

RRV2060

POWERED SUBWOOFER

HTV-SW1

CONTROL CENTER

HTV-C1

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

Type Power Requirement

Model

HTV-SW1 HTV-C1

DDXJ ‡ AC110–127V/220–230V/240V With the voltage selector

The voltage can be converted by
the following method.

ADXJ ‡ AC power supplied from power trans-

This product is a system component. This product does not function properly when independent;
to avoid malfunctions, be sure to connect it to the prescribed system component, otherwise
damage may result. The Powered Subwoofer HTV-SW1 is a part of the Hometheater System HTV-

1.

Hometheater System Control Center
HTV-1 HTV-C1 (this service manual)
(service manual RRV2063)

CONTENTS

1. SAFETY INFORMATION....................................2

2. EXPLODED VIEWS AND PARTS LIST .............3

3. SCHEMATIC DIAGRAM................................... 10

4. PCB CONNECTION DIAGRAM .......................24

5. PCB PARTS LIST.............................................36

6. ADJUSTMENT.................................................. 39

7.GENERAL INFORMATION ............................... 40

7.1 PARTS........................................................40

former's secondary of other system component

Powered Subwoofer
HTV-SW1 (this service manual)

Power Amp
HTV-A1 (this service manual)

7.1.1 IC ...........................................................40

7.1.2 DISPLAY................................................42

7.2 DIAGNOSIS................................................43

7.3 TEST MODE(HTV-C1) ...............................45

7.4 INDEPENDENT OPERATION DIAGNOSIS46

7.5 BACKUP FUNCTION (HTV-C1)................. 47

7.6 BLOCK DIAGRAM...................................... 48

8.PANEL FACILITIES AND SPECIFICATIONS..... 50

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. 253 Alexandra Road, #04-01, Singapore 159936

PIONEER ELECTRONIC CORPORATION 1998

T–ZZR NOV. 1998 Printed in Japan

HTV-SW1, HTV-C1

1. SAFETY INFORMATION

This service manual is intended for qualified service technicians; it is not meant for the casual
do-it-yourselfer. Qualified technicians have the necessary test equipment and tools, and have been
trained to properly and safely repair complex products such as those covered by this manual.
Improperly performed repairs can adversely affect the safety and reliability of the product and may
void the warranty. If you are not qualified to perform the repair of this product properly and safely, you
should not risk trying to do so and refer the repair to a qualified service technician.

WARNING
This product contains lead in solder and certain electrical parts contain chemicals which are known to the state of California to
cause cancer, birth defects or other reproductive harm.
Health & Safety Code Section 25249.6 – Proposition 65

NOTICE
(FOR CANADIAN MODEL ONLY)
Fuse symbols (fast operating fuse) and/or (slow operating fuse) on PCB indicate that replacement parts
must be of identical designation.

REMARQUE
(POUR MODÈLE CANADIEN SEULEMENT)
Les symboles de fusible (fusible de type rapide) et/ou (fusible de type lent) sur CCI indiquent que les
pièces de remplacement doivent avoir la même désignation.

(FOR USA MODEL ONLY)

1. SAFETY PRECAUTIONS

The following check should be performed for the

continued protection of the customer and service
technician.

LEAKAGE CURRENT CHECK

Measure leakage current to a known earth ground
(water pipe, conduit, etc.) by connecting a leakage
current tester such as Simpson Model 229-2 or
equivalent between the earth ground and all exposed

metal parts of the appliance (input/output terminals,
screwheads, metal overlays, control shaft, etc.). Plug
the AC line cord of the appliance directly into a 120V
AC 60 Hz outlet and turn the AC power switch on. Any
current measured must not exceed 0.5 mA.

Reading should
not be above

0.5 mA

Earth ground

Device
under
test

Also test with plug
reversed
(Using AC adapter
plug as required)

Leakage

current

tester

Test all exposed
metal surfaces

AC Leakage Test

ANY MEASUREMENTS NOT WITHIN THE LIMITS
OUTLINED ABOVE ARE INDICATIVE OF A PO­TENTIAL SHOCK HAZARD AND MUST BE COR­RECTED BEFORE RETURNING THE APPLIANCE
TO THE CUSTOMER.

2. PRODUCT SAFETY NOTICE

Many electrical and mechanical parts in the appli­ance have special safety related characteristics. These
are often not evident from visual inspection nor the
protection afforded by them necessarily can be ob­tained by using replacement components rated for
voltage, wattage , etc. Replacement parts which have
these special safety characteristics are identified in
this Service Manual.
Electrical components having such features are
identified by marking with a
on the parts list in this Service Manual.
The use of a substitute replacement component which
does not have the same safety characteristics as the
PIONEER recommended replacement one, shown in
the parts list in this Service Manual, may create shock,
fire, or other hazards.
Product Safety is continuously under review and
new instructions are issued from time to time. For
the latest information, always consult the current
PIONEER Service Manual. A subscription to, or ad­ditional copies of, PIONEER Service Manual may be
obtained at a nominal charge from PIONEER.

on the schematics and

2

HTV-SW1, HTV-C1

2. EXPLODED VIEWS AND PARTS LIST

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

÷ The

÷ Screw adjacent to

2.2 HTV-SW1

2.1.1 PACKING

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.

mark on the product are used for disassembly.

∞

1(1/4)

2(1/4)

1(3/4)

1(2/4)

4

1(4/4)

6

Rear

3

2(3/4)

2(2/4)

2(4/4)

÷ PACKING PARTS LIST(HTV-SW1)

Mark No. Description Part No.

1 Protector Top SHA2140

5

NSP 6 Polyethylene Bag SHL1227

2 Protector Bottom SHA2141
3 Protection Sheet S6 SHC1726
4 Protection Sheet S7 SHC1727
5 Packing Case SHG2124

(0.03 × 115 × 270)

3

HTV-SW1, HTV-C1

2.1.2 EXTERIOR ( Cabinet HTV-SW1 )

2

6

8

10

1

4

5

A

9

3

7

A

5

9

8

A

8

Refer to "2.1.3 POWER AMP SECTION"

÷ EXTERIOR(Cabinet HTV-SW1) PARTS

8

LIST

8

Mark No. Description Part No.

NSP 1 Cabinet SMM1821
NSP 2 Power AMP HTV-A1/DDXJ

3 Connecting Cord SDF1072

NSP 4 Paper Port tube SMR1283

5 Foot SNK2274

NSP 6 CAUTION LABEL SRR1012

NSP 10 Logo 40 SAM1452

4

7 Speaker Q20EU82-52F
8 Screw BYC40P200FZB
9 Bind Tapping Screw BYC40P300FZK

2.1.3 EXTERIOR ( POWER AMP HTV-A1)

HTV-SW1, HTV-C1

23

23

23

11

27

28

23

29

23

18

15

16

23

23

29

23

33

23

21

2

18

15

23

29

30

22

18

17

F

D

C

29

23

31

23

B

A

5

24

1

9

23

19

32

23

16

23

G

20

23

G

12

29

22

23

E

8

7

23

F

29

25

E

13

23

22

A

B

D

C

3

6

22

4

14

10

26

5

HTV-SW1, HTV-C1

EXTERIOR(POWER AMP HTV-A1) PARTS LIST

•

Mark No. Description Part No.

1 AFPS ASSY AWU7262
2 PAMP ASSY AWU7263
3 PT PRI ASSY AWU7264
4 PT SEC ASSY AWU7265
5 JACK ASSY AWU7257

6 Power Transformer (T1) ATS7228
7 Fuse (FU1 : T3.15AL250V) REK1027
8 Fuse (FU2, 3 : T1.6AL250V) REK1024
9 AC Power Cord VDG1058
NSP 10 Chassis ANA7093

NSP 11 Heat Sink ANH7079

NSP 18 PCB Holder PNW2174

27 Connector Assy 6P ADX7245
NSP 28 Cord Support Assy • • • • •

NSP 32 Volt Selector Label AAX7667
NSP 33 POWER SW Label AAX7669

12 PW Barrier AEC7157
13 ST Barrier AEC7155
14 TRANS Frame ANG7216
15 Mini Card Spacer AEC7143

16 Mica Sheet AEE7010
17 Strain Relief CM-22B

19 Bonnet Case AZN7214
20 PCB Stay ANG7217

21 Screw ABA-258
22 Screw ASZ40P060FMC
23 Screw BBZ30P080FMC
24 Screw IBZ30P080FMC
25 STANDBY PT Assy AWU7267

26 PW SWITCH Assy AWU7259

29 Push Rivet AEC7149
30 Cushion AEB7123

31 Heat Protector AEC7136

6

2.2 HTV-C1

2.2.1 PACKING

HTV-SW1, HTV-C1

5

15

12

13

15

2

3

14

2

4

9

11

18

6

7

23

20

16

19

PACKING PARTS LIST

•

17

Mark No. Description Part No. Mark No. Description Part No.

NSP 1 MOUNT ASSY AEA7021

2 Bolt Cap AEB7111
3 Velcro Hook(BLACK) AED7028
4 Velcro Loop(BLACK) AED7029
5 Operating Instructions ARE7183

(English/Spanish/Portuguese
/Chinese)

6 8P DIN Cable ADE7023

NSP 7 Speaker Cable 6P ADX7239

8 • • • • •
9 Remote Control Unit AXD7186

(CU-HT007)
10 • • • • •
11 Battery Cover RZN1156
12 Output Cable (L = 1.5m) VDE1052

NSP 13 Batteris(R06P,AA) VEM-013
NSP 14 Polyethylene Bag Z21-033

15 Polyethylene Bag Z21-038

(0.03 × 230 × 340)
16 L Protector AHA7209
17 R Protector AHA7210

18 Paper Protector AHA7217
19 Packing Case AHD7646
20 Packing Sheet AHG7053
21 Bolt(M6X140) ABA7042
22 Bolt(M6X90) ABA7041

23 Nut NA60FZK
24 Wing Nut NR60FZK
25 Washer WB60FZK

21

22

24

1

25

7

HTV-SW1, HTV-C1

2.2.2 MAIN SECTION

15

22

19

16

A

5

22

25

22

2

1

23

4

13

16

22

9

22

8

3

22

22

7

18

23

23

22

23

22

21

14

24

Slit

(BOTTOM VIEW)

24

A

12

20

11

6

24

17

10

20

12

10

A

11

Slit

24

CAUTION :

Insert a screwdriver into the slit under the Grille Assy to pry open
the grille assy gradually and uniformly.

6

8

MAIN SECTION PARTS LIST

•

Mark No. Description Part No.

1 DISPLAY Assy AWU7260
2 MAIN Assy AWU7261
3 TERMINAL Assy AWU7251
4 21P FFC/30V ADD7124
5 Cable Assy 4P ADX7240

HTV-SW1, HTV-C1

Mark No. Description Part No.

16 Lens AAK7551
17 Grille Assy AAS7001

NSP 18 Rear Case AMC7028

19 Sub Panel AMD7003
20 Acoustic Shield AEB7130

NSP 7 PCB Bracket ANA7068

6 Speaker D87DU61-51F
8 Rear Panel ANC7716

NSP 9 Shield Cover ANK7040

10 Cushion 3 AEB7110

NSP 11 Baffle AMD7006
NSP 12 Acoustic Absorbent AMT7001

13 Card Spacer DNK2769
14 Button AAD7498
15 Display Panel AAK7595

NSP 21 Founding Caution AAX7660

22 Screw BBZ30P080FMC
23 Screw VPZ30P080FMC
24 Screw BPZ40P140FZK
25 INPUT LEV. Assy AWU7252

9

1

HTV-SW1, HTV-C1

3. SCHEMATIC DIAGRAM

3.1 HTV-A1

3.1.1 OVERALL CONNECTIONS

A

B

23

PAMP ASSY

F

(AWU7263)

4

C

D

FROM

CONTROL

CENTER

(HTV–C1)

H

JA4001

TO

CONTROL

CENTER

(HTV–C1)

G

JACK ASSY
(AWU7257)

AFPS ASSY

A

(AWU7262)

10

H

CN501

1234

5

678

HTV-SW1, HTV-C1

Note : When ordering service parts, be sure to refer to "EXPLODED VIEWS and P AR TS LIST" or "PCB PARTS LIST".

PW

E

SWITCH
ASSY
(AWU7259)

AC110 -127V

220-230V/240V

50/60Hz

!

AC POWER CORD

VDG1058

A

B

PT SEC
ASSY
(AWU7265)

STANDBY

D

PT ASSY
(AWU7267)

B

AKP7038

AKP7038

C

C

PT PRI
ASSY

!

T1 : ATS7228

5

6

7

(AWU7264)

11

8

D

1

23

HTV-SW1, HTV-C1

3.1.2 AFPS, PT SEC, PT PRI, STANDBY PT, and PW SWITCH ASSY

E-VOLUME & TONE CONTROL, SUBWOOFERLEVEL

BALANCE IN

A

1/2

1

CN1105

G

2/2

1/2

4

4.5

B

2

C

OE(OUTPUT) CONTROL

L/R MIX

LPF 180Hz

1/2

1/2

2/2

I/O EXPANDER

7.6

2/2

2/2

AFPS ASSY (AWU7262)

A

40.3

18.2

5.1

26.9

18.4

–40.3

–26.9

D

–18.6

12

A

1234

–18.8

5

678

HTV-SW1, HTV-C1

BUFFER AMP

2/2

1/2

40Hz +9.5dB
HPF

1/2

2/2

HPF 180Hz

2/2

1/2

: AUDIO SIGNAL ROUTE(Lch)
: AUDIO SIGNAL ROUTE(SWch)

A

F

CN1101

B

F

CN1102

Q1001, Q1002 :
PROTECTION (SPEAKER)
RELAY DRIVER

PT SEC ASSY

B

(AWU7265)

0.1

POWER

TRANS-

FORMER

0.8

0.8

C

PT PRI ASSY
(AWU7264)

VEF1040

CN77

AKP7038

5.1

CN55

AKP7038

11.6

9.9

FU2,FU3:
REK1024
(T1.6AL250V)

FU1:
REK1027(T3.15AL250V)
H1- H6 : AKR7001

ATT7027

PW SWITCH

E

ASSY(AWU7259)

G

CN1104

AC POWER CORD

VDG1058

AC110 -127V/

220-230V/240V

50/60Hz

S1: Power SW
S2: Voltage

-Selector
S3: Voltage

-Sslector

C

D

T1

ATS7228

• NOTE FOR FUSE REPLACEMENT

CAUTION -

FOR CONTINUED PROTECTION AGAINST RISK OF FIRE,
REPLACE WITH SAME TYPE AND RATINGS ONLY.

5

G

J6

STANDBY PT ASSY (AWU7267)

D

A

6

7

B C

D

E

8

13

1

HTV-SW1, HTV-C1

3.1.3 PAMP ASSY

A

J1001

A

B

23

PAMP ASSY(AWU7263)

F

4

26.9

–26.9

–25.7

25.8

J1002

C

A

5

40.2

12

–12

6

4

3

6

–40.2

D

14

F

1234

SW

5

R

678

HTV-SW1, HTV-C1

A

: AUDIO SIGNAL ROUTE(Lch)
: AUDIO SIGNAL ROUTE(SWch)

CAUTION : FOR CONTINUED PROTECTION AGAINST RISK OF FIRE,
REPLACE ONLY WITH SAME TYPE NO. 491.500 MFD, BY
LITTELFUSE INK. FOR IC1201 (AEK7005).

Q1201, Q1202 : MUTE

.8

13.7

7

PROTECTION CIRCUIT

B

C

SW

40.3

2SC5198(P)

5

SPEAKE

5

2SA1941(P)

–40.3

SW ch DISCRETE POWER AMP

5

OVER LOAD

DETECTOR

D

15

F

6

7

8

1

HTV-SW1, HTV-C1

3.1.4 JACK ASSY

23

4

A

TO CONTROL CENTER HTV-CI
JA4001

H

: AUDIO SIGNAL ROUTE(Lch)

D

CN6

B

A

CN1005

C

A

CN1004

G

TO CONTROL CENTER HTV-CI

D

16

CN501

H

JACK ASSY(AWU7257)

G

1234

A

Waveforms

(HTV-A1)

HTW-SW1, HTV-C1

Note: The encircled numbers denote measuring
point in the schematic diagram.

CN1005-5 pin (LCHN), 6 pin (LCHP)

1

V : 20mV/div. H : 0.2mS/div.

Measurement condition :
Input a 1 kHz, 200mV signal to INPUT 1(2)

LCHP

LCHN

F

Waveforms

Q1109 Base

3

V : 20mV/div. H : 5mS/div.

Measurement condition :
SW ch output signal f=100Hz, 1W

Q1105 Collector, Q1106 Collector

6

V : 0.5V/div. H : 5mS/div.

Measurement condition :
SW ch output signal f=100Hz, 1W

(HTV-A1)

GND

GND

GND

IC8001- 2 pin (DATA), 3 pin (CLOCK),

2

4 pin (LCK) V: 0.5V/div. H: 1mS/div.

Measurement condition : Volume Min → 1

DATA
CLOCK
LCK

Q1110 Emitter

4

V : 50mV/div. H : 5mS/div.
Measurement condition :

SW ch output signal f=100Hz, 1W

D1309 Cathode

7

V : 1V/div. H : 10mS/div.

GND

GND
GND

GND

Q1101 Base, Q1102 Base

5

V : 0.5V/div. H : 5mS/div.

Measurement condition :
SW ch output signal f=100Hz, 1W

Q1101
Base

Q1102
Base

GND

GND

Q1105
Collector

Q1106
Collector

K

Waveforms

IC5001-45 pin (P1)

1

V : 1V/div. H : 1mS/div.

Waveforms

H

CN3001-9 pin (SCK), 10 pin (RVDT),

4

11 pin (REDY)
V : 0.5V/div. H : 0.5mS/div.

Measurement condition :
SUR. MODE OFF → VD

SCK
RVDT

REDY

( HTV-C1)

( HTV-C1)

GND

GND

GND

GND
GND

GND

IC5001-62 pin (1G)

2

V : 1V/div. H : 1mS/div.

CN501-4 pin (AC1):CH1, 8 pin (AC2):CH2

5

V : CH1:2V/div. , CH2:0.5V/div.
H : 1mS/div.

Measurement condition :
POWER ON (Connect with HTV-A1)

AC1

AC2

GND

GND

GND

GND

CN3001-6 pin (CLK), 7 pin (DATA),

3

8 pin (LCK) V: 0.5V/div. H: 1mS/div.

Measurement condition : Volume Min → 1

CLK
DATA
LCK

CN501-4 pin (AC1):CH1, 8 pin (AC2):CH2

5

V : CH1:2V/div. , CH2:0.5V/div.
H : 1mS/div.

Measurement condition :
STANDBY (Connect with HTV-A1)

AC1

AC2

GND
GND
GND

GND

GND

17

1

HTV-SW1, HTV-C1

3.2 HTV-C1

A

3.2.1 OVERALL CONNECTIONS

B

23

INPUT LEV. ASSY

I

(AWU7252)

4

K

DISPLAY ASSY

C

D

(AWU7260)

H

MAIN ASSY
(AWU7261)

18

1234

5

678

HTV-SW1, HTV-C1

A

B

Voltages of MAIN Assy
IC3001 (CXD2724Q) (V)

CONDITION SURROUND MODE

No. Pin Name OFF VD ST WIDE

10 D5V 4.9 4.9 4.9
16 XRST 5.0 5.0 5.0
18 CSL1 4.9 4.9 4.9
22 RDAV 5.0 5.0 5.0
23 ROUT 2.5 2.9 2.9
24 RADV 5.0 5.0 5.0
26 RINOP 2.4 2.4 2.4
27 RIN 2.4 2.4 2.4
28 CDAV 5.0 5.0 5.0
31 CLKV 5.0 5.0 5.0
32 XTLO 2.5 2.5 2.5
33 XTLI 2.5 2.5 2.5
37 SDAV 5.0 5.0 5.0
38 LIN 2.4 2.4 2.4
39 LINOP 2.4 2.4 2.4
41 LADV 5.0 5.0 5.0
42 LOUT 2.5 2.9 2.9
43 LDAV 5.0 5.0 5.0
46 SCK 5.0 5.0 5.0
47 READY 4.9 4.9 4.9
49 XLAT 5.0 5.0 5.0
50 RVDT 5.0 5.0 0.0
51 XS24 4.9 4.9 4.9
52 D5V 4.9 4.9 4.9
73 D5V 4.9 4.9 4.9

J

TERMINAL ASSY
(AWU7251)

FROM
SW AMP UNIT
(HTV–A1)
JACK ASSY

G

CN1003

TO
SW AMP UNIT
(HTV–A1)
JACK ASSY

G

JA4501

C

D

19

5

6

7

8

1

MAIN ASSY
(AWU7261)

H

CN5001

K

43

VTL1096

VTL1096

VTL1096

VTL1096

VTL1096

VTL1096

DOLBY VIRTUAL DECODER

INPUT 1 INPUT 2

0V 4.5V

23

HTV-SW1, HTV-C1

3.2.2 MAIN, INPUT LEV. and TERMINAL ASSY

4

A

B

C

D

20

H

1234

5

678

HTV-SW1, HTV-C1

INPUT LEV. ASSY

I

(AWU7252)

: AUDIO SIGNAL ROUTE (Lch)

A

B

-18.7

-28

LEVEL IN

-40.9

A

B

-13.5

STANDBY POWER ON

12.2V 11.6V

A

0V

B

11.5

9.5V

G

JA4501
(HTV-A1)

C

FRONT

SPEAKER

5

TERMINAL

J

ASSY
(AWU7251)

D

CN1003

G

(HTV-A1)

J

21

H

5

6

7

I

8

1

HTV-SW1, HTV-C1

3.2.3 DISPLAY ASSY

A

DISPLAY ASSY

K

(AWU7260)

REMOCON

23

5.6

4

4.8

INPUT1 INPUT2

4.7V 0V

MUTE1
MUTE2

B

H

CN3001

C

0V 4.7V

Power Detect

RESTE

Each push on the button Voltage (v)
POWER SUR. DISP VOL– VOL+ INPUT No push on

0 0.8 1.6 2.5 3.3 4 4.6

D

22

K

1234

S5001 : INPUT
S5002 : VOL+
S5003 : VOL–
S5004 : DISPLAY
S5005 : SURROUND MODE
S5006 : POWER(STAND BY/ON)

5

678

HTV-SW1, HTV-C1

A

-28

2

B

1

¶ In regard to the voltage at pin 22 of IC5001 (LEVEL IN)

• This terminal monitors the input signal level for operation of the
automatic standby mode.

• When INPUT key (INPUT 2) is selected and -46dB V (about 5mV rms)
is applied as input (input to both channels, freq. =1kHz), this terminal
rises to about 0.8V DC (in case of both channels, -40 dB V, about 0.8V
DC) and POWER ON is effected.

C

D

K

5

6

7

8

23

1

23

HTV-SW1, HTV-C1

4. PCB CONNECTION DIAGRAM

4.1 HTV-A1

4.1.1 AFPS, PT SEC and PT PRI ASSY

A

NOTE FOR PCB DIAGRAMS :

1. Part numbers in PCB diagrams match those in the schematic
diagrams.

2. A comparison between the main parts of PCB and schematic
diagrams is shown below.

Symbol In PCB
Diagrams

BCE

B

BCE

D

Symbol In Schematic
Diagrams

BCEBCE

BCE

DGGSS

BCE

DGS

Part Name

Transistor

Transistor
with resistor

Field effect
transistor

CN1105

G

CN1104

G

AFPS ASSY

A

4

Resistor array

3-terminal
regulator

3. The parts mounted on this PCB include all necessary parts for
several destinations.
For further information for respective destinations, be sure to
check with the schematic diagram.

4. View point of PCB diagrams.

Connector

C

P.C.Board

Capacitor

Chip Part

SIDE A

SIDE B

PT SEC ASSY

B

T1 POWER TRANSFORMER

(ANP7288-B)

IC110 IC111 IC103 IC101 IC102

T1 POWER TRANSFORMER

C

D

24

A

B C

1234

PT PRI ASSY

SIDE A

D

(ANP7288-B)

CN55

5

C

678

HTV-SW1, HTV-C1

CN1101

F

Q102
IC105

IC121

IC122
Q105

IC106

Q6051

A

Q103
Q104

Q101

B

Q6052

CN1102

F

C

NP7288-B)

102

Q1005

Q1001

Q1002

Q1004

Q303

Q301

D

8-B)

Q302

SIDE A

(ANP7288-B)

A

5

6

7

8

25

1

HTV-SW1, HTV-C1

A

IC4502
IC4501

IC4503

23

AFPS ASSY

A

4

B

C

IC6001

Q106

IC6031
IC6501

IC6701
IC7101

Q1003

IC8001

Q8001

D

SIDE B

(ANP7288-B)

26

A

1234

5

678

HTV-SW1, HTV-C1

A

B

PT SEC ASSY

B

PT PRI ASSY

C

C

(ANP7288-B)

D

SIDE B

5

6

7

(ANP7288-B)

A

B C

8

27

1

HTV-SW1

4.1.2 STANDBY PT, PW SWITCH ASSY

STANDBY PT ASSY

D

A

CN77

C

23

SIDE A

4

J6

G

AC
POWER
CORD

B

LIVE

NEUTRAL

(ANP7289-B)

E

PW SWITCH
ASSY

STANDBY PT ASSY

D

C

SIDE B

D

(ANP7289-B)

28

D

E

1234

1

4.1.3 JACK ASSY

JACK ASSY

G

234

HTV-SW1

A

CN6

D

SIDE A

TO
CONTROL
CENTER
HTV-C1

CN501

H

FROM
CONTROL
CENTER
HTV-C1

JA4001

H

JACK ASSY

G

(ANP7288-B)

SIDE B

CN1004

A

CN1005

A

B

C

(ANP7288-B)

D

G

1

2

3

4

29

1

HTV-SW1, HTV-C1

4.1.4 PAMP ASSY

23

4

A

PAMP ASSY

F

SW
SPEAKER

B

Q1104 Q1309 Q1106

Q1102

PAMP ASSY

F

C

D

Q1107

Q1110 Q1111
Q1109 Q1108
Q1103 Q1105

Q1101

Q1112

30

F

1234

5

678

HTV-SW1, HTV-C1

A

J1002

A

J1001

SIDE A

A

B

1112 Q1303

Q1306
Q1310

Q1305 Q1202
Q1304

IC1201

Q1201 Q1204 Q1203 Q1307

IC1101

Q1308

SIDE B

(ANP7288-B)

Q1302

Q1301

C

D

(ANP7288-B)

F

5

6

7

8

31

1

HTV-SW1, HTV-C1

4.2 HTV-C1

4.2.1 MAIN ASSY

A

23

4

MAIN ASSY

H

FROM

B

SW AMP UNIT
HTV-A1

CN1003

G

SIDE A

IC501

IC502

IC504
IC505
IC507

IC506

IC503

K

CN5001

Q551

CN203

J

TO
SW AMP UNIT
HTV-A1

JA4501

G

I

CN4002

Q501
Q553

IC551

C

IC3001

D

(ANP7287-A)

CN4001

I

32

H

1234

5

678

HTV-SW1, HTV-C1

A

MAIN ASSY

H

SIDE B

B

Q552

Q554

C

IC3501
IC2002

Q2003

Q2001

Q2002

IC2001
IC3001

Q2031
Q2032

(ANP7287-A)

5

6

7

Q2012

Q2011

H

8

D

33

1

23

HTV-SW1, HTV-C1

4.2.2 INPUT LEV., TERMINAL and DISPLAY ASSY

A

INPUT LEV. ASSY

I

4

SIDE A

(ANP7287-A)

CN552

H

B

FRONT
SPEAKER

C

DISPLAY ASSY

K

TERMINAL ASSY

J

(ANP7287-A)

CN3001

H

H

H

CN551

CN503

D

(ANP7287-A)

34

I

J K

1234

5

678

HTV-SW1, HTV-C1

INPUT LEV. ASSY

I

IC4002 IC4001 IC2511

J

TERMINAL ASSY

SIDE B

(ANP7287-A)

A

B

(ANP7287-A)

DISPLAY ASSY

K

(ANP7287-A)

Q5004 Q5009 IC5001 Q5001 Q5008 Q5007

I

5

6

7

J K

8

C

D

35

HTV-SW1, HTV-C1

5. PCB PARTS LIST

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.
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%).

1

560 Ω = 56 × 10
47k Ω = 47 × 10

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

3

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

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

Mark No. Description Part No.

5.1 HTV-A1

LIST OF PCB ASSEMBLIES

MOTHER ASSY AWM7419

SUB ASSY AWX7293

AFPS ASSY

SEMICONDUCTORS

IC121,IC122 (250mA) AEK7002

IC105 NJM7812FA
IC106 NJM7912FA

Q6051,Q6052 2SC1740S
Q101 2SD1858X

D103-D106 11ES2

D101 D3SBA20(B)
D102 D5SBA20(B)

RELAY

CAPACITORS

C101,C102 (4700µF/63V) ACH7007
C103,C104 (3300µF/50V) ACH7056

AFPS ASSY AWU7262
PAMP ASSY AWU7263
PT PRI ASSY AWU7264
PT SEC ASSY AWU7265
JACK ASSY AWU7257

STANDBY PT ASSY AWU7267
PW SWITCH ASSY AWU7259

A

IC8001 BU2092F
IC6001 M62419FP
IC4501-IC4503,IC6031 NJM4558MD
IC6501,IC6701 NJM4558MD

IC7101 NJM4558MD

Q1002,Q1005 2SC1740S

Q1001 DTA143ES
Q8001 DTC124EK

D1001,D1002,D8001,D8002 1SS133

D6051 MTZJ10B
D8003 MTZJ2.7B
D107 MTZJ5.6B

D6001,D6002,D8004-D8006 MTZJ8.2B

RY1002 ASR1035

C6013,C6014 CCSQCH470J50
C7102,C7103 CEANPR47M50
C6011,C6012,C6015-C6018 CEAT100M50

Mark No. Description Part No.

C6031,C6032,C6051,C6053 CEAT100M50
C6701,C6702,C7104,C7105,C8006 CEAT100M50
C6004 CEAT101M10
C6052 CEAT101M16
C105 CEAT102M25

C6054 CEAT221M10
C6503,C6504 CEAT2R2M50
C106 CEAT471M25
C107-C109,C111,C8001,C8007 CEAT470M25
C6019,C6020 CEAT4R7M50

C8003-C8005 CKSQYB102K50
C6029,C6030 CKSQYB104K25
C6027,C6028 CKSQYB221K50
C6005,C6006 CKSQYB472K50
C6021,C6022,C6025,C6026 CKSQYB682K50

C6023,C6024 CKSQYB683K25
C4501-C4506,C6001,C6003,C8002 CKSQYF103Z50
C1001-C1004,C216,C217 CKSQYF104Z50
C6060 CKSQYF473Z50
C205-C208 CQMA223K2E

C6704 CQMBA104J50
C6501,C6502,C6703 CQMBA473J50

RESISTORS

R8004 RD1/2PM222J
R1001,R1002 RD1/4PM100J
R101 RD1/4PU182J
R102 RD1/4PU220J
R8005 RD1/4PU273J

R6051 RD1/4PU821J
R4505-R4512 RS1/10S1001F

R110 RS3LMF151J

Other Resistors RS1/10S J

OTHERS

CABLE HOLDER (9P) 51052-0900

CABLE HOLDER (13P) 51063-1305
J1002 JUMPER WIRE D15A13-150-2651
J1004 BOARD IN WIRE DB020ND0
CN1005 9P PLUG KM200TA9

CN1004 SOCKET 6-P KP250NA6
CN101 CONNECTOR (11P) KPE11
CN102 CONNECTOR (5P) KPE5
KN101 EARTH METAL FITTING VNF1084

36

HTV-SW1, HTV-C1

Mark No. Description Part No. Mark No. Description Part No.

PT SEC ASSY

B

SEMICONDUCTORS

IC103 (1A) AEK7009
IC101,IC102 (1.25A) AEK7010
IC110,IC111 (7A) AEK7021

CAPACITORS

C123 (0.01µF) ACG7021
C121,C122 CKSQYF103Z50

OTHERS

CABLE HOLDER (5P) 51063-0505

J102 JUMPER WIRE D15A05-200-2651
J101 JUMPER WIRE D15A11-200-2651

PT PRI ASSY

C

CABLE HOLDER (11P) 51063-1105

OTHERS

CN77 6P CONNECTOR AKP7038

STANDBY PT ASSY

D

PCB BINDER VEF1040

SEMICONDUCTORS

IC1 (315mA) AEK7003
D3 S1VB20/F03

D1,D2 1SS133X

TRANSFORMER

T3 ATT7027

RELAY

RY1 ASR7019

CAPACITORS

C1,C3,C4 (1000pF/AC250V) ACG7020

C5 (0.01µF/AC250V) ACG1005
C6 CEAT102M25

OTHERS

CN55 6P CONNECTOR AKP7038

CN2,CN3 AC CORD SOCKET RKP1751
S3 VOLTAGE SELECTOR AKX7004

S2 VOLTAGE SELECTOR AKX7006

PW SWITCH ASSY

H1– H6 FUSE CLIP AKR7001
CN6 CONNECTOR (3P) KPE3

PCB BINDER VEF1040

E

SWITCH

S1 ASM7002

OTHERS

J1 CONNECTOR ASSY 2P ADX7244

Q1108 2SA970
Q1109,Q1110 2SA992

Q1107 2SC1740S

Q1301,Q1302,Q1307,Q1308 2SC1740S
Q1309 2SC2240

Q1106 2SC2705
Q1103 2SC4793
Q1101 2SC5198(P)

Q1111,Q1201,Q1202 2SD2144S

Q1306,Q1310 DTA123JS

Q1112,Q1303 DTA143ES

Q1304,Q1305 DTC143ES

D1307,D1309 11ES2

D1101-D1103,D1301-D1304, 1SS133

D1308,D1310-D1312,D1316 1SS133

COILS

L1201,L1202 AF CHOKE COIL ATH-133

L1101 AF CHOKE COIL ATH1004

RELAY

RY1101 ASR1035

CAPACITORS

C1107,C1108 CCCSL101K2H

C1104 CCCSL120K2H

C1106 CCCSL5R0C2H

C1207,C1208 CCSQSL3R0C50

C1217,C1218 CCSQSL471J50

C1103 CCSQSL681J50

C1101 CEAT100M50

C1211,C1212 CEAT101M50

C1105 CEANP101M50

C1306 CEANP2R2M50

C1100,C1205,C1206,C1209 CEAT100M50

C1210,C1304 CEAT100M50

C1111,C1303 CEAT101M10

C1201,C1202 CEAT1R0M50

C1120 CEAT220M50

C1305 CEAT221M10

C1307 CEAT470M25

C1203,C1204 CKSQYB152K50

C1102 CKSQYB223K50

C1109,C1110,C1219 CKSQYF104Z50

RESISTORS

R1124 (0.33Ω,5W) ACN7001

R1126 RD1/2PM100J
R1217,R1218 RD1/4LMF101J

R1109 RD1/4PM104J

R1110 RD1/4PM112J
R1125,R1215,R1216 RD1/4PMF100J

R1116-R1119 RD1/4PMF101J
R1112 RD1/4PMF680J

R1312 RD1/4PU222J

R1315 RD1/4PU821J

PAMP ASSY

F

SEMICONDUCTORS

IC1201 (500mA) AEK7005
IC1101 STK407-040B

Q1104 2SA1837
Q1102 2SA1941(P)

Q1105 2SA1145

R1115 RF1/4PS101J
R1120-R1123 RF1/4PS4R7J

R1213,R1214 RS2LMFR22J

Other Resistors RS1/10S J

OTHERS

CN1103 2P CONNECTOR 5569-02A1

CN1101 9P JUMPER CONNECTOR KPD9

CN1102 CONNECTOR (13P) KPE13

37

HTV-SW1, HTV-C1

Mark No. Description Part No. Mark No. Description Part No.

JACK ASSY

G

SEMICONDUCTORS

D4501-D4506,D4508 MTZJ8.2B

CAPACITORS

C4603 (0.01µF/100V) ACG7021
C4601,C4602,C4604-C4606 CKCYF103Z50

OTHERS

CN1003 8P CONNECTOR AKP7026
J6 JUMPER WIRE D15A03-200-2651
CN1104 PLUG 6-P KM250NA6L
CN1105 9P SOCKET KP200TA9L

CABLE HOLDER (3P) 51063-0305

PCB BINDER VEF1040
I/O JACK VKN1070
SCREW PLATE VNE1948

5.2 HTV-C1

LIST OF PCB ASSEMBLIES

COMPLEX ASSY AWM7418
DISPLAY ASSY AWU7260
MAIN ASSY AWU7261
TERMINAL ASSY AWU7251
INPUT LEV. ASSY AWU7252

MAIN ASSY

H

SEMICONDUCTORS

IC501,IC502 (630mA) AEK7006
IC503,IC551 (200mA) AEK7023
IC504 BA05T

IC2001 BU4066BCF
IC3001 CXD2724Q

TRANSFORMER

T2 ATT7025

CAPACITORS

C500 (0.01µF/AC250V) ACG1005
C591 (0.01µF/100V) ACG7021
C3204,C3209,C3285-C3288,C3295CCSQCH101J50
C3206,C3207 CCSQCH120J50
C3517-C3520 CCSQSL331J50

C2021,C2023,C504-C506,C509 CEAT100M50
C511 CEAT100M50
C552 CEAT101M10
C503 CEAT101M63
C501 CEAT222M25

C502 CEAT331M25
C3201-C3203,C3523,C3524 CEAT470M25
C507,C508 CEAT470M50
C3282,C3292 CEAT471M6R3
C3511,C3512 CEAT4R7M50

C2031,C3296,C3515,C3516 CKSQYB102K50
C3205,C3208 CKSQYB331K50
C2005,C2015,C2022,C2024 CKSQYF103Z50
C3283,C3284,C3289-C3291 CKSQYF103Z50
C3293,C3294,C3513,C3514 CKSQYF103Z50

C534-C536,C540,C592 CKSQYF103Z50

RESISTORS

R556 RD1/4PU220J
R503 RD1/4PU223J
R502 RS1LMF122J
R560 RS3LMF101J
Other Resistors RS1/10S J

OTHERS

CN2001,CN2002 PIN JACK (4P) AKB7015
CN501 8P CONNECTOR AKP7026
X3201 CRYSTAL RESONATOR ASS7000

(33.8688MHz)

CN3001 FFC CONNECTOR 21P HLEM21S-1

IC507 NJM7805FA

IC2002,IC3501 NJM4558MD

IC505 NJM7806FA
IC506 NJM7906FA
Q501 2SB1238X

Q553 2SB1238X
Q2001,Q2002,Q2011,Q2012,Q554 2SC2412K
Q2031 DTA124EK
Q2003,Q2013 DTA143EK
Q2032 DTC124EK

D501-D505 11ES2

D553,D554 11ES2
D2001,D2002,D506,D555-D557 1SS133
D2003,D2013 DAP202K
D507 MTZJ27D

D4001-D4003,D4007,D4008 MTZJ8.2B
D4017,D4018 MTZJ8.2B
D508 MTZJ9.1C

COILS

L4001-L4007 CHIP BEAD FILTER DTL1019
L2501 LAU1R0J
L3203 LFA220J
L3202 LFA6R8J
L501 FERRITE BEAD VTH1024
L2001- L2006 CHIP BEADS VTL1096

38

CN551 10P PLUG KM200TA10
CN552 6P PLUG KM200TA6
CN503 SOCKET 4-P KP250NA4

KN4001,KN501 VNF1084

INPUT LEV. ASSY

I

I/O JACK VKN1070
EARTH METAL FITTING

SEMICONDUCTORS

IC2511,IC4001,IC4002 NJM4558MD
D2510,D2512 1SS133
D2513 MTZJ4.3B

CAPACITORS

C2513,C2518 CCSQCH220J50
C4001,C4002,C4011,C4012 CEAT100M50
C2511 CEAT1R0M50
C2514,C2515,C2519,C2522,C4051CEAT470M25
C4053 CEAT470M25
C2520,C2521,C4071,C4072 CEAT4R7M50
C4052,C4054,C4056,C4058 CKSQYF103Z50

RESISTORS

R2528 RD1/4PU101J
R4003-R4006 RS1/10S1002F
Other Resistors RS1/10S J

Mark No. Description Part No.

OTHERS

CN4002 10P SOCKET KP200TA10L
CN4001 6P SOCKET KP200TA6L

TERMINAL ASSY

J

OTHERS

CN203 4-P PLUG KM250NA4L
KN201 SCREW PLATE VNE1948

DISPLAY ASSY

K

SEMICONDUCTORS

IC5001 PDG239A
Q5009 2SC2412K
Q5007,Q5008 DTA143EK
Q5001,Q5004 DTC143EK
D5002,D5008-D5011,D5013 1SS133

D5007 GL3ED8
D5012 MTZJ3.0B
D5003 MTZJ6.8B
D5005,D5006 SLP3118C51H

COIL

L5001 LAU220J

SWITCHES

S5001-S5006 ASG1034

CAPACITORS

C5025 (0.047F/5.5V) ACH1246
C5024 CCSQSL471J50
C5004 CEJA100M25
C5002,C5008 CEJA101M10
C5026 CEJA220M10

HTV-SW1, HTV-C1

6. ADJUSTMENT

There is no information to be shown in this chapter.

C5023 CKSQYB472K50
C5001,C5003,C5007,C5013 CKSQYF103Z50
C5006 CKSQYF473Z50

RESISTORS

R5017 RA15T473J
R5016 RA9T473J
R5007 RD1/4PU821J
Other Resistors RS1/10S J

OTHERS

V5001 FL TUBE AAV7052
X5001 CERAMIC RESONATOR DSS1053

CN5001 FFC CONNECTOR 21P XKP3021

(8MHz)
REMOTE RECEIVER UNIT GP1U28X
FL HOLDER VNF1085

39

HTV-SW1, HTV-C1

7. GENERAL INFORMATION

7.1 PARTS

7.1.1 IC
BU2092F (IC8001: AFPS ASSY)

¶ The information shown in the list is basic information and may not

Serial In/Parallel Out Driver

Pin Function Block Diagram

DD

V

OE

Q11

Q10

Q9

Q8

Q7

Q6

Q3

Q5

Q4

18 17 16 15 14 13 12 11 10

Output Buffer (Open Drain)

Control Circuit

12 bits Shift Register

12 bits Strage Register

123456789

Q0

Q1

Vss

DATA

LCK

CLOCK

Q2

No. Name I/O Description

1 Vss – GND
2 DATA I Serial data input
3 CLOCK I Shift lock for data ( )
4 LCK I Lutch clock for data ( )

5Q0

16 Q11

17 OE I Output enable (H: output, FET: OFF)
18 VDD – Power supply

M62419FP (IC6001: AFPS ASSY)
Electronic Volume Control with Tone Function

correspond exactly to that shown in the schematic diagrams.

Parallel data output (Nch Open Drain FET)

||O

Lutch Data L H

Output FET ON OFF

Block Diagram

CLOCK

CLOCK

I/F

DATA

DATA

VDD

SELECT OUT 2

DD

V

GND

SELECT OUT 1

VOL IN 2

LOUD IN 2

VOL IN 1

LOUD IN 1

SELECT 2 NF 2

SELECT 2 IN A

SELECT 2 IN B

–

+

+

–

–

+

+

–

SELECT 1 IN A

SELECT 2 NF 1

SELECT 1 IN B

SELECT 2 IN C

SELECT 2 IN D

ATTF OUT 2

SELECT 1 IN C

ATTF OUT 1

SELECT 1 IN D

ATTR OUT 2

TONE IN 2

+

–

–

+

TONE IN 1

ATTR OUT 1

TC 2 A

TC 1 A

TC 2 B

–
+

+
–

TC 1 B

TC 2 C

TC 1 C

TONE OUT 2

FADER IN 2

+

+

FADER IN 1

TONE OUT 1

REAR OUT 2

FRONT OUT 2

2242 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23

+

–

–

Vref

–

–

+

211234567891011121314151617181920

REAR OUT 1

FRONT OUT 1

VREF

Vcc

Vcc

40

Pin Function

HTV-SW1, HTV-C1

No. Name Description

1 DATA Control data input terminal.

Data are entered synchronized to CLOCK.

2 GND Ground terminal

3 SELECT OUT1 Output terminals of the input selector switch

4 VOL IN1 Input terminals of the volume control section

5 LOUD IN1 Frequency characteristic setting terminal of

the loudness section

6 SELECT2 NF1 Each input gain is adjusted by the resistor

connected between this terminal and the
SELECT OUT terminal and the resistor added
between IN A and IN D.

7 SELECT1 IN A Input terminal for channel 1 of the input selector

switch section

8 SELECT1 IN B

9 SELECT1 IN C

10 SELECT1 IN D

11 ATTF OUT1 Output terminals of the volume control section

(initial stage). Connect by C connection to the
VREF terminal 22 for reduction of the switching
noise.

12 ATTR OUT1 Output terminals of the volume control section

(last stage)

13 TONE IN1 Input terminals of the tone control section

14 TC1 A Frequency characteristic setting terminals of

the tone control section for channel 1

15 TC1 B

No. Name Description

24 REAR OUT2 Output terminals of the fader volume control

section (rear)

25 FADER IN2 Input terminals of the fader volume control section

26 TONE OUT2 Output terminals of the tone control section

27 TC2 C Frequency characteristic setting terminals of

the tone control section for channel 2

28 TC2 B

29 TC2 A

30 TONE IN2 Input terminals of the tone control section

31 ATTR OUT2 Output terminals of the volume control section

(last stage)

32 ATTF OUT2 Output terminals of the volume control section

(initial stage). Connect by C connection to the
VREF terminal 22 for reduction of the switching
noise.

33 SELECT2 IN D Input terminal for channel 2 of the input selector

switch section

34 SELECT2 IN C

35 SELECT2 IN B

36 SELECT2 IN A

37 SELECT2 NF2 Each input gain is adjusted by the resistor

connected between this terminal and the
SELECT OUT terminal and the resistor added
between IN A and IN D.

38 LOUD IN2 Frequency characteristic setting terminal of

the loudness section

16 TC1 C

17 TONE OUT1 Output terminals of the tone control section

18 FADER IN1 Input terminals of the fader volume control section

19 REAR OUT1 Output terminals of the fader volume control

section (rear)

20 FRONT OUT1 Output terminals of the fader volume control

section (front)

21 Vcc Analog power supply terminal

22 DATA IC signal ground. Impress 1/2 VCC.

23 FRONT OUT2 Output terminals of the fader volume control

section (front)

39 VOL IN2 Input terminals of the volume control section

40 SELECT OUT1 Output terminals of the input selector switch

41 VDD Digital power supply terminal

42 CLOCK Clock input terminal for serial data transfer

41

HTV-SW1, HTV-C1

7.1.2 DISPLAY
AAV7052 (V5001: DISPLAY ASSY)

7 FL INDICATOR TUBE

• Pin Assignment

PATTERN AREA

1‡

• Pin Connection

NOTE 1) F1,F2 -------------- Filament

2) NP ------------------No pin

3) NX ------------------ No extend pin

4) DL ------------------ Datum Line

5) 1G - 9G ----------- Grid

• Grid Assignment

• Anode Connection

P1

P2

P3

1G - 8G

a1

a2

h

9G

P10

P11

P12

1G - 8G

c

e

r

9G

42

P4

P5

P6

P7

P8

P9

j

k

b

f

m

g

P13

P14

P15

P16

P17

p

n

d1

d2

Dp

7.2 DIAGNOSIS

7.2.1 DISASSEMBYL (HTV-A1)

BONNET CASE

2

× 3

Bonnet
Case

3

HTV-SW1, HTV-C1

At this time, diagnosis of the

1

× 5

1

× 3

PAMP assembly is possible.

3

1

× 4

AFPS ASSY

× 2

PAMP Assy

5

4

× 2

1

× 3

1

× 4

9

8

10

AFPS Assy

Note: At the time of installation,
install so that the circuit boards
comes under the PCB stay claw.

PCB Stay

Claw

7

ST Barrier

6

AFPS assembly

DIAGNOSIS

1

× 2

1

AFPS Assy

2

× 3

PCB Holder

PAMP Assy

43

HTV-SW1, HTV-C1

7.2.2 INDEPENDENT OPERATION DIAGNOSIS METHOD(HTV-A1)

In principle, the HTV-1 system operates only as a combination
of HTV-C1 and HTV-A1, but analysis from the electronic
volume control (M62419FP) on is possible according to the
following method.
Note: The white numbers in black circles in the drawing
correspond to the following step numbers.

1

Short-circuit W141 (PRIRY) and W142 (UNREG+9) in
the TANDBY PT assembly.

2

Short-circuit W215 (SPRY) and W216 (GNDD) in the
AFPS assembly.

[At the time of L/Rch analysis]

3

Disconnect C6031 in the AFPS assembly and apply the
signal to W251 (L ch IN). [In case of the right channel,
disconnect C6023 and apply the signal to W240 (R ch IN).]
÷ As the gain from L ch IN to L ch SP OUT is about 37 dB
(freq. = 1 kHz), input of 40 mVrms to L ch IN results in

output of 1 W (2.83 Vrms/8 Ω) at L ch SP OUT.
[At the time of SWch analysis]



4

Disconnect W131 (SW IN) in the PAMP assembly.

Apply the signal to the plus pole of CI100.

5

÷ As the gain from CI100 to SWch is about 38 dB
(freq. = 100 Hz), input of 36 mVrms to CI100 results in
output of 1 W (2.83 Vrms/8 Ω) at SWch SP OUT.

4

Take off theW131

PAMP ASSY

SIDE A

5

Enter an
signal input

AFPS ASSY

1

Short­circuited

STANDBY PT ASSY

SIDE A

SIDE A

KN1001

JACK ASSY

KN101

AFPS ASSY

Caution items for diagnosis of the AF
PS assembly after removal from the
chassis

The assembly operates only when the earth
fittings KN101 (AFPS assembly) and KN10
01 (JACK assembly) are connected.
For diagnosis with the AFPS assembly remo
ved from the chassis, perform diagnosis with
these earth fittings short-circuited.

44

2

Short-circuited

Enter an signal input

Take off the C6031

3

3

7.3 TEST MODE (HTV-C1)

HTV-SW1, HTV-C1

7.3.1 Entry into Test Mode

There are the following two methods for entry into test mode.
(1) Reception of the command "A55F" by remote control.
(2) Short-circuit the TEST MODE point (pin 19 of IC5001 and
GND) on the copper foil side of the DISPLAY assembly.
Connect the power cable to an outlet.

DISPLAY ASSY

K

IC5001

Pin 19

Short point

SIDE B

• In regard to the automatic standby mode

• Automatic standby mode always is reached during POWER ON.

• Standby condition is reached when the input signal disappears
for 5 minutes (input level of INPUT 1 (2): 49 dB V, LEVEL IN
voltage: 0.6 V DC). At this time, the standby indicator lights
orange.

• POWER ON occurs when an input signal is entered in this
condition ( a signal of -46dB V to INPUT 1 (2)).

• When the power is switched off with the STANDBY/ON key on
the unit or with the power key of the remote control unit, this
function does not operate and the standby indicator lights red.

2. DSP Check

Press the SURR. MODE key. = DSP check mode is entered.

DSP check mode

A test tone is put out at the time of DOLBY VIRTUAL condition.
Test tone output is repeated in the order of LEFT = CENTER =
RIGHT = SURROUND.
Confirm that DSP operates normally at the time of SURROUND
output.

Press the SURROUND MODE key twice. = DSP check mode is
canceled. FL and LED display normally.

• Keys other than the specified ones operate normally.

• At the time of entry into test mode, FL displays "TEST 1"
for 1 second.

• The LED flashes during test mode.

• At this time, the VOLUME setting becomes 10.

• The SURROUND mode becomes DOLBY VIRTUAL ON.

7.3.2 Test Mode Operation

FL segment check

Press the DISPLAY key. = The operations (1) to (5) are
switched sequentially.
(1) FL, LED all lit
(2) FL, LED all not lit
(3) (Segment check 1) Display of "ABCDEFGH"
(4) (Segment check 2) Display of "IJKLMNOP"
(5) Normal display

1. Confirmation of the Automatic Standby Function

(1) Press the INPUT key. =
The power is switched off and automatic standby mode
is entered. The standby indicator lights orange. (This
condition is reached when 5 minutes without a signal
have passed during power ON.)
(2) Apply an input signal to the INPUT terminal. =
AUTO POWER ON (This operates only with input to the
selected INPUT terminal.)

7.3.3. Test Mode Cancellation

During power ON, set the STANDBY/OFF key to OFF or disconnect
the power cable from the outlet.

45

HTV-SW1, HTV-C1

7.4 INDEPENDENT OPERATION DIAGNOSIS METHOD (HTV-C1)

• In principle, the HTV-1 system operates only as a combination of

HTV-C1 and HTV-SW1, but operation is possible by applying
AC 26 V at the input side (bettween AC1 and AC2) of the
subtransformer (T2) in the MAIN assembly.

• In this case, it is not possible to check all functions (functions on

the HTV-A1 side).

• The gain from the pin jack [(INPUT 1 (2)] to AL6+ (-) or AR6+

(-) is as shown below.

SURR. MODE Gain (dB)

OFF -3.0dB

VD (EFFECT +3) -3.6dB

ST - WIDE -3.5dB

• With input of -14 dBV (200mV rms) to INPUT 1 (2), -17 dBV

appears at AL6+ (-), AR6+ (-) in case of SURR. OFF.

# In case of independent operation, a DC component appears at
AL6+ (-), AR6+ (-) depending on the signal level.

AC26V

MAIN ASSY

H

SIDE A

CAUTION :

• Caution and diagnosis method at the time of removal of the MAIN assembly from the chassis.

No operation occurs when the earth plates KN501 and KN4001 are not connected. When diagnosis is to be performed with the
MAIN assembly removed from the chassis, short-circuit the earth plates KN501 and KN4001 before diagnosis.

EARTH METAL FITTING KN501and KN4001at the short-circuit

MAIN ASSY

H

KN4001

CN501

CN503

SIDE A

CN3001

FRONT

T2

KN501

46

7.5 IN REGARD to the BACKUP FUNCTION (HTV-C1)

Even when disconnected from the main power supply, HTV-C1 keeps the
following memory settings stored for about two weeks to one month
because of the backup power supply.
When these settings are changed at the time of servicing, they will remain changed,
so that caution is required. In this case, return to the factory settings is possible by
switching the power supply off after entry into test mode.

7 Function for memorizing of settings

* Input switching
* Bass
* Treble
* Balance
* SW level
* Sound mode
* Effect level
* Loudness ON/OFF
* Demonstration mode ON/OFF
* Volume (only in case of demonstration mode OFF)

HTV-SW1, HTV-C1

7 Settings at the time of shipping from the factory

* Input switching: INPUT1
* Bass: ±2
* Treble: ±0
* Balance: CENTER
* SW level: +1
* Surround mode: VIRTUAL DOLBY
* Effect level: +3
* Loudness: OFF
* Demonstration mode: ON
* Volume: MIN

47

HTV-SW1, HTV-C1

7.3 BLOCK DIAGRAM

CONTROL CENTER

HTV–C1

Q2001,Q2011

2SC2412K

IC2001

BU4066BCF

NJM4558MD

IC2002

NJM4558MD

IC2511

IC3001

CXD2724Q

IC3501

NJM4558MD

IC4001(1/2)

NJM4558MD

IC4001(2/2)

NJM4558MD

Q5004
DTC143EK

Q5007

DTA143EK

D5007

GL3ED8

STANDBY

-INDICATOR

Q5008

DTA143EK

BA05T

NJM7805FA

NJM7806FA

NJM7906FA

11ES2
11ES2

2SB1238X

IC5001

PDG239A

(Interruption Detect)

Q553

2SB1238X

48

AMPLIFIER

HTV–A1

HTV-SW1, HTV-C1

IC6001(1/2)

IC4503

NJM4558MD

BU2092F

M62419FP

IC8001

2SC1740S 2SC1740S

IC6701(1/2)

NJM4558MD

IC6501
NJM4558MD
HPF (180Hz)

IC6701(2/2)

NJM4558MD

LPF (180Hz)

IC6001(2/2)

M62419FP

S1VB20/F03

Q1201,Q1202

2SD2144S

IC7101

NJM4558MD

D3

IC1101

STK407-040B

Q1111

2SD2144S

Q1301,Q1302,Q1307,Q1308
: 2SC1740S
Q1309 : 2SC2240

D101

D3SBA20(B)

2SD1858X

NJM7812FA

NJM7912FA

D102

D5SBA20(B)

D103 ~ D106

11ES2

AC110-127V

/220-230V

/240V

50/60Hz

AC POWER CORD

49

HTV-SW1, HTV-C1

8. PANEL FACILITIES AND SPECIFICATIONS

CONTROL CENTER (HTV-C1)

3

2

STANDBY/ON

SURROUND MODE

1 STANDBY/ON switch

Turns the power ON/OFF (Standby).

SURROUND MODE

INPUT 12INPUT 12 ST.WIDEST.WIDE VIRTUAL DOLBY AUTO POWER ONAUTO POWER ON

STANDBY/ON

7

8

INPUT 12 ST.WIDE VIRTUAL

91

DOLBY

VOLUME

DISPLAY INPUT

0

-

4

ON

6 INPUT button

Selects the input device.

5

VOLUME

DISPLAY INPUT

6

2 STANDBY indicator

Auto Standby function

This unit features a function that automatically switches power
ON or OFF (Standby) depending on whether a signal is input or
not.
÷ When power is switched ON, if there is no input signal for 5

minutes, the unit automatically switches to Standby and the
standby indicator lights orange.

÷ If a signal is input through the selected input jack when the

indicator is lit orange (showing that the Auto Standby function
is operating), power automatically switches ON.

÷ If you switch power OFF with the Standby switch in the main

unit or the remote control (the Standby indicator lights red),
the unit remains in the Standby mode even if a signal is input
through the selected input jack.

÷ When power to the unit is ON, the indicator lights green.

3 SURROUND MODE button

Selects Surround Mode.

4 DISPLAY button

When pressed once, displays each setting in sequence for 2
seconds. When pressed again, switches to Dimmer Mode, chang­ing the brightness of the display.

5 VOLUME+, – buttons

7 INPUT 1, 2 indicator

When the INPUT 1 terminal is selected, “1” is illuminated; when
the INPUT 2 terminal is selected, “2” is illuminated.

8 ST.WIDE indicator

Lights up when Surround Mode is switched to “STEREO WIDE.”

9 DOLBY VIRTUAL indicator

Lights up when Surround Mode is switched to “DOLBY VIRTUAL.”

0 Power ON indicator

This lights when the Control Center standby switch is set to On.
The indicator remains lit even if you switch the display OFF.

- Character display

50

Remote Control Unit

0

1

2

3

0

1

2
3

HTV-SW1, HTV-C1

Except Australian model

SOURCE

TV

STANDBY/ON

CA

TV FUNC.

TV

TV/VCR

1

2
3

4

5

6

7

SAT

VCR

1

LD

4 5 6

DVD

7

SOURCE

CONTROL

0+10

SUR.MODE

SYSTEM

CONTROL

DISPLAY

PRESET

INPUT

STANDBY/ON

PRE-PROGRAMMED REMOTE CONTROL UNITPRE-PROGRAMMED REMOTE CONTROL UNIT

CHANNEL

VOLUME

ENTER

2

8

SOUND

LEVEL

PRESET
RECALL

GUIDE

MENU

CH.ENTER

MUTING

VOLUME

OFF

A/B

Australian model

LEARN RESET

TRANSMIT / PRESET PREOALL / LEARN

SOURCE

PRESET

4

1

3

9

1

2

1

1

3

5

TV

CATV

SAT

VCR

LD

DVD

CD

SOUND

STANDBY/ON

STANDBY/ON

TV FUNC.

TV/VCR

SUR.MODE

LEVEL

6

1

7

PRE-PROGRAMMED AND LEARNINGPRE-PROGRAMMED AND LEARNING

VOLUME

OFF

CHANNEL

GUIDE

1

2

4 5

8

7

+10

0

SOURCE CONTROL

SYSTEM

CONTROL

VOLUME

MUTING

INPUT

REMOTE CONTROL UNITREMOTE CONTROL UNIT

ENTER

3

6

9

A/B

CH.ENTER

DISC

MENU

DISPLAY

8
9

1

1
1

1

1 SOURCE CONTROL buttons

Select the device to be operated.

2 SOUND button

Selects the sound control function (BASS/TREBLE/BALANCE/
S.W. LEVEL/EFFECT/LOUDNESS).

3 SUR.(surround) MODE button

Selects Surround Mode.

4 PRESET button

To preset other manufacturer's devices, press any one of
the SOURCE CONTROL buttons together with this button.

5 DISPLAY button

When pressed once, displays each setting in sequence for 2
seconds. When pressed again, switches to Dimmer Mode, chang­ing the brightness of the display.

6 STANDBY/ON button

Turns the Home Theater System power ON/OFF (Standby).

7 INPUT button

Selects the input device.

8 LEARN button (Australian model only)

Selects Learn Mode.

9 RESET button (Australian model only)

0 Other device operation buttons

Select the device to be operated with the SOURCE CONTROL
buttons and then operate the device.

- MUTING button

Press to mute the volume.

= VOLUME +, – button(s)

Use to adjust the volume.

~ LEVEL +, – button(s)

Use to adjust the sound control mode selected with the SOUND
button.

51

HTV-SW1, HTV-C1

Red

White

SPECIFICATIONS

HTV -1

Amplifier Section

Continuous power output (DIN)

Front L/R ............................... 30 W + 30 W (1 kHz, THD 1%, 8Ω)

Subwoofer ...................................... 60 W (100 Hz, THD 1%, 8Ω)

Continuous power output (RMS)

Front L/R ............................. 40 W + 40 W (1 kHz, THD 10%, 8Ω)

Subwoofer .................................... 80 W (100 Hz, THD 10%, 8Ω)

Input (Sensitivity/Impedance)

INPUT 1, 2 ................................................................. 220 mV/70 kΩ

Speaker Section

Front L/R ............................................................... 8.7 cm cone type

Subwoofer ............................................................ 20 cm cone type

Miscellaneous

[Except Australian model]

Power Requirements .............................

Power Consumption ............................................................. 400 W

In Standby Condition ................................................ less than 3 W

[Australian model]

Power Requirements .........................................

Power Consumption ............................................................. 350 W

In Standby Condition ................................................ less than 3 W

Dimensions

Control center .......................... 610 (W) × 110 (H) × 166 (D) mm

Powered subwoofer ................ 364 (W) × 360 (H) × 371 (D) mm

Weight (without package)

Control center .................................................................... 3.8 kg

Powered subwoofer ........................................................ 13.5 kg

AC 110-127/220-230/240 V

(switchable), 50/60 Hz

AC 240 V, 50/60 Hz

Furnished Parts

System cable A .............................................................................. 1

System cable B .............................................................................. 1

Audio cord ..................................................................................... 1

Mount kit ........................................................................................ 1

Dry Cell Batteries

Except Australian model .......................... size "AA" IEC R6P x 2

Australian model ................................. size "AAA" IEC LR03 x 2

Remote Control Unit ..................................................................... 1

Operating Instructions .................................................................. 1

Warranty card (Australian model only) ....................................... 1

NOTE:

Specifications and the design are subject to possible modifications without
notice, due to improvements.

Manufactured under license from Dolby Laboratories.
DOLBY and the double-D symbol are trademarks of Dolby

Laboratories.

Accessories

¶ Remote control unit

[Except Australian
model] (CU-HT007)

(AXD7186)

¶ Mount kit (AEA7021)

Washers x 2
(WB60FZK)

52

[Australian model]
(CU-HT008)

(AXD7191)

Wing nuts x 2
(NR60FZK)

Nuts x 2 (NA60FZK)

¶ Batteries
(R6P, AA)

(VEM-013)

Bolts (S) x 2
(ABA7041)

Bolts (L) x 2
(ABA7042)

¶ System cable A (3m)
(ADX7239)

¶ System cable B (3m)
(ADE7023)

¶ Audio cord
(VDE1052) (L= 1.5 m)

¶ Operating instructions

¶ Warranty card

(Australian model only)

Bolt caps x 4
(AEB7111)

Velcro tapes
(hooks) x 2
(AED7028)

Velcro tapes
(loops) x 2
(AED7029)