Harman kardon ch 161

Page 2

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SPECIFICATIONS

OFM SECTION Nominal Limit
Tuning Range 87.5MHz~107.9MHz
Usable Sensitivity 14.8dBf s 18dBf
Quieting Sensitivity

Mono ISdBf s 23dBf
Stereo 40dBf s 45dBf
Signal to Noise Ratio
Mono 72:18 2 66dB
Stereo SBdB z 60dB
IF Rejection (88.1MHz) SOdB a 85dB
Image Rejection (98.1MH2) 55dB a 52dB
AM Suppression SOdB 2 44:13
Capture Ratio 1.5dB 5 3dB
Selectivity (i400kHz) 70dB 2 60:13
Distortion (Stereo)
(65dBf,100%) 0.22% s 0.4%
Frequency Response
(:1: 3dB)~ 30Hz~15kHz
MPX Separation at 1kHz 40:13 a 35dB
Output Level (75kHz dev.) 550mV iSdB
0 AM SECTION
Tuning Range 530kHz~1620kHz
Signal to Noise Ratio 50:13 2 45dB
IF Rejection (SOOkHz) 60dB 2 50:33
Image Rejection (1400kHzl 55dB 2 50dB
Selectivity (:9kHz) 50dB a 45dB

DISASSEMBLY PROCEDURES (REFER TO PAGES

El CASSETTE TAPE PLAYER MECHANICAL ASSEMBLY
I102) REMOVAL

1. Remove the Cabinet Top (144) and Cabinet Bottom
(145).

The Cabinet Top (144) and Cabinet Bottom (145) are
fixed with projections, 3 at the front and rear each and
1 at the right and left each.

2. Pull out the Volume Knob (149) and Bass, Treble and
Fader Knobs (151).

3. Remove screw 0 and then with the right and left cat-
ches released, remove the Front Panel Assembly (101).

4. Remove 4 screws @ and then remove the Bracket (182).

5. Remove 5 screws 0 and then remove the Cassette Tape
Player Mechanical Assembly (102) with the Mecha Con-
trol and Dolby NR P. C. Board (PCB»2). Also, disconnect
the connectors (PCB-7, LCN202 and LCN203) from CN
201, CN202 and CN203 on the PCB-2.

6. Remove screw 0 and unsolder the Cassette Power
Switch and then remove the Mecha Control and Dolby
NR P. C. Board (PCB-2).

7. Remove 4 screws (3 and then remove the Bracket (183)
from the Cassette Tape Player Mechanical Assembly
(102).

f, ,,i

.AUDIO SECTION Nominal Limit
Tone Control Action

Bass (BOHZ) 11dB 11.5dB

'fieble (10kHZ) 11dB :1.5dB

Loudness Action(80Hz/10kHz) 10dB a: 3dB/3dB 1 2:13
Output Impedance 5009

O CASSETTE TAPE DECK SECTION

Wow and Flutter (WRMS) 0.09% S 0.2%
Tape Speed (4.750m/sec) +1% 5 +3% 4%
FF and REW Time
(for 060 tape) 125sec. 5 150$ec.
Signal to Noise Ratio (CrOz)
Dolby NR Off 54dB 2 50113
Dolby NR Type B 6463 Z 58dB
Dolby NR Type c 72dB 2 64dB
Distortion 1% s 2%
Frequency Response 20Hz~20kHz
Separation 4DdB a 35dB
Crosstalk 70dB 2 60dB
Output Level (Volume Max.) 775r11V :eSdB

This specification is the target of servicing. But, there is a case that
the specification is not applicable to the measurement condition and
instrument.

Specifications and components subject to change without notice. Overall
performance will be maintained or improved.

*Dolby noise reduction manufactured under license from Dolby
Laboratories Licensing Corporation. Dolby" and the double-D
symbol are trademarks of Dolby Laboratories Licensing Corporation.

3 AND 12)

E) MAIN P. C. BOARD (PCB-1) REMOVAL

1. Remove the Cassette Tape Player Mechanical Assembly
(102), referring to the previous step [I].

2. Remove 5 screws 0 and then remove the Main P. C.
Board (PCB-1) with the SIG Switching P. C. Board
(PCB-4). Also, disconnect the connectors (LCN501,
LCN502, LCN503 and LCN506) from the CN501,
CN502, CN503 and CN506 on the Volume P. C. Board
(PCB-3).